[INFO] fetching crate slack-web-api 0.1.0...
[INFO] testing slack-web-api-0.1.0 against 1.75.0 for beta-1.76-1
[INFO] extracting crate slack-web-api 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate slack-web-api 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slack-web-api 0.1.0
[INFO] finished tweaking crates.io crate slack-web-api 0.1.0
[INFO] tweaked toml for crates.io crate slack-web-api 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded groupable v0.2.0
[INFO] [stderr]   Downloaded nickel v0.11.0
[INFO] [stderr]   Downloaded modifier v0.1.0
[INFO] [stderr]   Downloaded iron v0.6.1
[INFO] [stderr]   Downloaded tiny_http v0.6.4
[INFO] [stderr]   Downloaded mustache v0.9.0
[INFO] [stderr]   Downloaded mime_guess v1.8.8
[INFO] [stderr]   Downloaded plugin v0.2.6
[INFO] [stderr]   Downloaded ascii v0.8.7
[INFO] [stderr]   Downloaded chunked_transfer v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4a68818ee7f428c6c658ed94d1901f87817387f6ea80dd5ab97816734c3b562
[INFO] running `Command { std: "docker" "start" "-a" "a4a68818ee7f428c6c658ed94d1901f87817387f6ea80dd5ab97816734c3b562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4a68818ee7f428c6c658ed94d1901f87817387f6ea80dd5ab97816734c3b562", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4a68818ee7f428c6c658ed94d1901f87817387f6ea80dd5ab97816734c3b562", kill_on_drop: false }`
[INFO] [stdout] a4a68818ee7f428c6c658ed94d1901f87817387f6ea80dd5ab97816734c3b562
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df3687bb954ff7726dbb40517eda62e54a435df7b0346bdb44d63eb2816d7888
[INFO] running `Command { std: "docker" "start" "-a" "df3687bb954ff7726dbb40517eda62e54a435df7b0346bdb44d63eb2816d7888", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling ascii v0.8.7
[INFO] [stderr]    Compiling chunked_transfer v0.3.1
[INFO] [stderr]    Compiling groupable v0.2.0
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling tiny_http v0.6.4
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling iron v0.6.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling multipart v0.18.0
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling slack-web-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::Value`
[INFO] [stdout]  --> src/api/files.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stdout]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stdout]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                     ----^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                      ----^^^^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stdout]    |                                                         ----^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                   ----^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                       ----^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut blocks = blocks;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.47s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "df3687bb954ff7726dbb40517eda62e54a435df7b0346bdb44d63eb2816d7888", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df3687bb954ff7726dbb40517eda62e54a435df7b0346bdb44d63eb2816d7888", kill_on_drop: false }`
[INFO] [stdout] df3687bb954ff7726dbb40517eda62e54a435df7b0346bdb44d63eb2816d7888
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdb0cfea39124a1ef62f7acb66a74df5c7cd3811f9e6939cc8cadea6432afc34
[INFO] running `Command { std: "docker" "start" "-a" "fdb0cfea39124a1ef62f7acb66a74df5c7cd3811f9e6939cc8cadea6432afc34", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling slack-web-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::Value`
[INFO] [stdout]  --> src/api/files.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stdout]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stdout]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Value`
[INFO] [stdout]  --> src/api/files.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stdout]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stdout]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                     ----^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                      ----^^^^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stdout]    |                                                         ----^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                   ----^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                       ----^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut blocks = blocks;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                     ----^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                      ----^^^^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stdout]    |                                                         ----^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                   ----^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                       ----^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut blocks = blocks;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SlackApiChatDeleteRequest`, `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostEphemeralRequest`, `SlackApiChatPostMessageRequest`, `SlackApiChatScheduleMessageRequest`, `SlackApiChatScheduledMessagesListRequest`, `SlackApiChatUnfurlRequest`, `SlackApiChatUpdateRequest`, `SlackMessageAttachment`
[INFO] [stdout]  --> tests/test_file.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | ...::{SlackApiChatDeleteRequest, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackApiFilesUploadRequest, SlackMessageAttachmen...
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CompositionObjectText`, `SlackAttachmentBuilder`, `SlackBlockContext`, `SlackBlockFile`, `SlackBlockHeader`, `SlackMessageBuilder`
[INFO] [stdout]  --> tests/test_file.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | ...::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, SlackMessageBuilder};
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> tests/test_file.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostMessageRequest`, `SlackApiChatUnfurlRequest`, `SlackMessageAttachment`
[INFO] [stdout]  --> tests/test_chat.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | ...t, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackMessageAttachmen...
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockFile`
[INFO] [stdout]  --> tests/test_chat.rs:2:87
[INFO] [stdout]   |
[INFO] [stdout] 2 | use slack_web_api::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, Slac...
[INFO] [stdout]   |                                                                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> tests/test_chat.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "fdb0cfea39124a1ef62f7acb66a74df5c7cd3811f9e6939cc8cadea6432afc34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb0cfea39124a1ef62f7acb66a74df5c7cd3811f9e6939cc8cadea6432afc34", kill_on_drop: false }`
[INFO] [stdout] fdb0cfea39124a1ef62f7acb66a74df5c7cd3811f9e6939cc8cadea6432afc34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e41fec7a65ed32c151ba91311dfcaaf5b3fe9efd7ab1785fda0bebf4b362b914
[INFO] running `Command { std: "docker" "start" "-a" "e41fec7a65ed32c151ba91311dfcaaf5b3fe9efd7ab1785fda0bebf4b362b914", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `serde_json::Value`
[INFO] [stderr]  --> src/api/files.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde_json::Value;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stderr]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stderr]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stderr]    |                                     ----^^^^
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:26:40
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stderr]    |                                        ----^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:31:38
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stderr]    |                                      ----^^^^
[INFO] [stderr]    |                                      |
[INFO] [stderr]    |                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:36:57
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stderr]    |                                                         ----^^^^
[INFO] [stderr]    |                                                         |
[INFO] [stderr]    |                                                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:64:35
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stderr]    |                                   ----^^^^
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:70:39
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stderr]    |                                       ----^^^^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:77:40
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stderr]    |                                        ----^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let mut blocks = blocks;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `slack-web-api` (lib) generated 10 warnings (run `cargo fix --lib -p slack-web-api` to apply 10 suggestions)
[INFO] [stderr] warning: `slack-web-api` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr] warning: unused imports: `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostMessageRequest`, `SlackApiChatUnfurlRequest`, `SlackMessageAttachment`
[INFO] [stderr]  --> tests/test_chat.rs:1:53
[INFO] [stderr]   |
[INFO] [stderr] 1 | ...t, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackMessageAttachmen...
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SlackBlockFile`
[INFO] [stderr]  --> tests/test_chat.rs:2:87
[INFO] [stderr]   |
[INFO] [stderr] 2 | use slack_web_api::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, Slac...
[INFO] [stderr]   |                                                                                       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> tests/test_chat.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SlackApiChatDeleteRequest`, `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostEphemeralRequest`, `SlackApiChatPostMessageRequest`, `SlackApiChatScheduleMessageRequest`, `SlackApiChatScheduledMessagesListRequest`, `SlackApiChatUnfurlRequest`, `SlackApiChatUpdateRequest`, `SlackMessageAttachment`
[INFO] [stderr]  --> tests/test_file.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | ...::{SlackApiChatDeleteRequest, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackApiFilesUploadRequest, SlackMessageAttachmen...
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CompositionObjectText`, `SlackAttachmentBuilder`, `SlackBlockContext`, `SlackBlockFile`, `SlackBlockHeader`, `SlackMessageBuilder`
[INFO] [stderr]  --> tests/test_file.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | ...::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, SlackMessageBuilder};
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> tests/test_file.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `slack-web-api` (test "test_chat") generated 3 warnings (run `cargo fix --test "test_chat"` to apply 3 suggestions)
[INFO] [stderr] warning: `slack-web-api` (test "test_file") generated 3 warnings (run `cargo fix --test "test_file"` to apply 3 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slack_web_api-c7fb2eaf276dc0d3)
[INFO] [stderr]      Running tests/test_chat.rs (/opt/rustwide/target/debug/deps/test_chat-5b3ce12002c1880b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test stdout ----
[INFO] [stdout] thread 'test' panicked at tests/test_chat.rs:7:51:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: NotPresent
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55b77493b3fc - std::backtrace_rs::backtrace::libunwind::trace::ha637c64ce894333a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55b77493b3fc - std::backtrace_rs::backtrace::trace_unsynchronized::h47f62dea28e0c88d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55b77493b3fc - std::sys_common::backtrace::_print_fmt::h9eef0abe20ede486
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55b77493b3fc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hed7f999df88cc644
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55b774967ec0 - core::fmt::rt::Argument::fmt::h1539a9308b8d058d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55b774967ec0 - core::fmt::write::h3a39390d8560d9c9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55b77493835f - std::io::Write::write_fmt::h040b369f3a0f9cbc
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/io/mod.rs:1762:15
[INFO] [stdout]    7:     0x55b77493b1e4 - std::sys_common::backtrace::_print::h894006fb5c6f3d45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55b77493b1e4 - std::sys_common::backtrace::print::h23a2d212c6fff936
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55b77493cea7 - std::panicking::default_hook::{{closure}}::h8a1d2ee00185001a
[INFO] [stdout]   10:     0x55b77493cb93 - std::panicking::default_hook::h6038f2eba384e475
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55b7746d6e87 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0ad024c9bdc6d768
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   12:     0x55b7746d6e87 - test::test_main::{{closure}}::h7500b54257359db6
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55b77493d4b8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1f8f335eaa9cfaee
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2021:9
[INFO] [stdout]   14:     0x55b77493d4b8 - std::panicking::rust_panic_with_hook::h2b5517d590cab22e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55b77493d20e - std::panicking::begin_panic_handler::{{closure}}::h233112c06e0ef43e
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x55b77493b8c6 - std::sys_common::backtrace::__rust_end_short_backtrace::h6e893f24d7ebbff8
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stdout]   17:     0x55b77493cf72 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55b77453e135 - core::panicking::panic_fmt::hbf0e066aabfa482c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55b77453e763 - core::result::unwrap_failed::hddb4fea594200c52
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1653:5
[INFO] [stdout]   20:     0x55b7746241d4 - core::result::Result<T,E>::unwrap::he45d2d3b49c7874a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/result.rs:1077:23
[INFO] [stdout]   21:     0x55b7746853c6 - test_chat::test::{{closure}}::h2cc530c00804650a
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_chat.rs:7:17
[INFO] [stdout]   22:     0x55b7745bf578 - <core::pin::Pin<P> as core::future::future::Future>::poll::hd96dc56de5384d7f
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/future/future.rs:125:9
[INFO] [stdout]   23:     0x55b7745bf6db - <core::pin::Pin<P> as core::future::future::Future>::poll::hfc331374f2fb7122
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/future/future.rs:125:9
[INFO] [stdout]   24:     0x55b7745fde54 - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::{{closure}}::haa7601c834114bef
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:665:57
[INFO] [stdout]   25:     0x55b7745fdd8a - tokio::runtime::coop::with_budget::hdcc4c221f40ccbf0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/coop.rs:107:5
[INFO] [stdout]   26:     0x55b7745fdd8a - tokio::runtime::coop::budget::hd0a07f37651522eb
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/coop.rs:73:5
[INFO] [stdout]   27:     0x55b7745fdd8a - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::he74517d2b9537765
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:665:25
[INFO] [stdout]   28:     0x55b7745fca0c - tokio::runtime::scheduler::current_thread::Context::enter::h48c0e167f648de0e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:410:19
[INFO] [stdout]   29:     0x55b7745fd57e - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::hdd54003688dbfb79
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:664:36
[INFO] [stdout]   30:     0x55b7745fd28b - tokio::runtime::scheduler::current_thread::CoreGuard::enter::{{closure}}::hf0e33f0018143fe8
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:743:68
[INFO] [stdout]   31:     0x55b77466881b - tokio::runtime::context::scoped::Scoped<T>::set::h77a73b73b2857b35
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context/scoped.rs:40:9
[INFO] [stdout]   32:     0x55b774626da9 - tokio::runtime::context::set_scheduler::{{closure}}::h5cef077828b686d2
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context.rs:176:26
[INFO] [stdout]   33:     0x55b774595936 - std::thread::local::LocalKey<T>::try_with::h8db12dd6e8543dc5
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:270:16
[INFO] [stdout]   34:     0x55b7745945aa - std::thread::local::LocalKey<T>::with::h12415299f372d940
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/local.rs:246:9
[INFO] [stdout]   35:     0x55b774626d5d - tokio::runtime::context::set_scheduler::h785de757919c19be
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context.rs:176:9
[INFO] [stdout]   36:     0x55b7745fd020 - tokio::runtime::scheduler::current_thread::CoreGuard::enter::h224ae775e3a36fd4
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:743:27
[INFO] [stdout]   37:     0x55b7745fd2bd - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::ha169479ccedb1a8b
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:652:19
[INFO] [stdout]   38:     0x55b7745f9d8d - tokio::runtime::scheduler::current_thread::CurrentThread::block_on::{{closure}}::hb965ced561bc0cbb
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:175:28
[INFO] [stdout]   39:     0x55b774573caa - tokio::runtime::context::runtime::enter_runtime::h3a8ba2ae3442f3e7
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context/runtime.rs:65:16
[INFO] [stdout]   40:     0x55b7745f9ca0 - tokio::runtime::scheduler::current_thread::CurrentThread::block_on::hc5ef4d090910f993
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:167:9
[INFO] [stdout]   41:     0x55b774660b2d - tokio::runtime::runtime::Runtime::block_on::h3b37dc0a85613e4e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/runtime.rs:348:47
[INFO] [stdout]   42:     0x55b7746850f7 - test_chat::test::hf609f30a398ffc57
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_chat.rs:69:5
[INFO] [stdout]   43:     0x55b774684f77 - test_chat::test::{{closure}}::hc3f0a7e22f52406c
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_chat.rs:6:16
[INFO] [stdout]   44:     0x55b774604366 - core::ops::function::FnOnce::call_once::h42065c3019ed4de7
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x55b7746dc4df - core::ops::function::FnOnce::call_once::h2b5d431d5046312d
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x55b7746dc4df - test::__rust_begin_short_backtrace::h7714669af176e207
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:628:18
[INFO] [stdout]   47:     0x55b7746db4f5 - test::run_test_in_process::{{closure}}::h85218797dcbcec12
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:60
[INFO] [stdout]   48:     0x55b7746db4f5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h76c106ea31c14d7b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   49:     0x55b7746db4f5 - std::panicking::try::do_call::h3bd5d0f6620ee946
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   50:     0x55b7746db4f5 - std::panicking::try::h232e535e4744fe31
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   51:     0x55b7746db4f5 - std::panic::catch_unwind::h3ce3bd6ca8dbac68
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   52:     0x55b7746db4f5 - test::run_test_in_process::hc97b257c9621286a
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:651:27
[INFO] [stdout]   53:     0x55b7746db4f5 - test::run_test::{{closure}}::h2aa798823a438d38
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:574:43
[INFO] [stdout]   54:     0x55b7746a37b6 - test::run_test::{{closure}}::h87d231c78fb59832
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/test/src/lib.rs:602:41
[INFO] [stdout]   55:     0x55b7746a37b6 - std::sys_common::backtrace::__rust_begin_short_backtrace::he6df152596625789
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys_common/backtrace.rs:154:18
[INFO] [stdout]   56:     0x55b7746a8867 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha94be15d1e0acf36
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   57:     0x55b7746a8867 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9dc6bd6372f16606
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   58:     0x55b7746a8867 - std::panicking::try::do_call::h9057517f80303cd4
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:552:40
[INFO] [stdout]   59:     0x55b7746a8867 - std::panicking::try::he3a30b11ee45340c
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panicking.rs:516:19
[INFO] [stdout]   60:     0x55b7746a8867 - std::panic::catch_unwind::h410458cfd3528b8b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/panic.rs:142:14
[INFO] [stdout]   61:     0x55b7746a8867 - std::thread::Builder::spawn_unchecked_::{{closure}}::h72ac3bdb567b737b
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   62:     0x55b7746a8867 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h38f34da3654a8344
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   63:     0x55b7749421d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc7eafaff61e32df9
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   64:     0x55b7749421d5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ba4a5de48dd2304
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/alloc/src/boxed.rs:2007:9
[INFO] [stdout]   65:     0x55b7749421d5 - std::sys::unix::thread::Thread::new::thread_start::he469335aef763e45
[INFO] [stdout]                                at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   66:     0x7fdbad5e7ac3 - <unknown>
[INFO] [stdout]   67:     0x7fdbad678bf4 - __clone
[INFO] [stdout]   68:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_chat`
[INFO] running `Command { std: "docker" "inspect" "e41fec7a65ed32c151ba91311dfcaaf5b3fe9efd7ab1785fda0bebf4b362b914", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e41fec7a65ed32c151ba91311dfcaaf5b3fe9efd7ab1785fda0bebf4b362b914", kill_on_drop: false }`
[INFO] [stdout] e41fec7a65ed32c151ba91311dfcaaf5b3fe9efd7ab1785fda0bebf4b362b914
[INFO] testing slack-web-api-0.1.0 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate slack-web-api 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate slack-web-api 0.1.0 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slack-web-api 0.1.0
[INFO] finished tweaking crates.io crate slack-web-api 0.1.0
[INFO] tweaked toml for crates.io crate slack-web-api 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d04515dbbd57323f3029df721d44950caa62ece4fe6904feeb92174bb3fc0154
[INFO] running `Command { std: "docker" "start" "-a" "d04515dbbd57323f3029df721d44950caa62ece4fe6904feeb92174bb3fc0154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d04515dbbd57323f3029df721d44950caa62ece4fe6904feeb92174bb3fc0154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d04515dbbd57323f3029df721d44950caa62ece4fe6904feeb92174bb3fc0154", kill_on_drop: false }`
[INFO] [stdout] d04515dbbd57323f3029df721d44950caa62ece4fe6904feeb92174bb3fc0154
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 481cc75e9a7f0ce1041aa7b3f7717375f0527669ca86e6453d8b178b2605b48b
[INFO] running `Command { std: "docker" "start" "-a" "481cc75e9a7f0ce1041aa7b3f7717375f0527669ca86e6453d8b178b2605b48b", kill_on_drop: false }`
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling pkg-config v0.3.28
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling unicode-bidi v0.3.14
[INFO] [stderr]    Compiling traitobject v0.1.0
[INFO] [stderr]    Compiling matches v0.1.10
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling mio v0.8.10
[INFO] [stderr]    Compiling socket2 v0.5.5
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling unsafe-any v0.4.2
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling openssl-sys v0.9.98
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling openssl v0.10.62
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling time v0.1.45
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling modifier v0.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling chrono v0.4.31
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling mustache v0.9.0
[INFO] [stderr]    Compiling fastrand v2.0.1
[INFO] [stderr]    Compiling ascii v0.8.7
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling groupable v0.2.0
[INFO] [stderr]    Compiling chunked_transfer v0.3.1
[INFO] [stderr]    Compiling tiny_http v0.6.4
[INFO] [stderr]    Compiling nickel v0.11.0
[INFO] [stderr]    Compiling tempfile v3.9.0
[INFO] [stderr]    Compiling iron v0.6.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling buf_redux v0.8.4
[INFO] [stderr]    Compiling twoway v0.1.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling serde_derive v1.0.194
[INFO] [stderr]    Compiling multipart v0.18.0
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling slack-web-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::Value`
[INFO] [stdout]  --> src/api/files.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stdout]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stdout]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                     ----^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                      ----^^^^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stdout]    |                                                         ----^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                   ----^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                       ----^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut blocks = blocks;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.59s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "481cc75e9a7f0ce1041aa7b3f7717375f0527669ca86e6453d8b178b2605b48b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "481cc75e9a7f0ce1041aa7b3f7717375f0527669ca86e6453d8b178b2605b48b", kill_on_drop: false }`
[INFO] [stdout] 481cc75e9a7f0ce1041aa7b3f7717375f0527669ca86e6453d8b178b2605b48b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23dc87036d66f6bc41c9d3b04abf9f084879edf1ba5a0b58a34232c9f589e783
[INFO] running `Command { std: "docker" "start" "-a" "23dc87036d66f6bc41c9d3b04abf9f084879edf1ba5a0b58a34232c9f589e783", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tokio v1.35.1
[INFO] [stderr]    Compiling tokio-util v0.7.10
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.3.22
[INFO] [stderr]    Compiling hyper v0.14.28
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling slack-web-api v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde_json::Value`
[INFO] [stdout]  --> src/api/files.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stdout]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stdout]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde_json::Value`
[INFO] [stdout]  --> src/api/files.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use serde_json::Value;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stdout]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stdout]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                     ----^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                      ----^^^^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stdout]    |                                                         ----^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                   ----^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                       ----^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut blocks = blocks;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:21:37
[INFO] [stdout]    |
[INFO] [stdout] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                     ----^^^^
[INFO] [stdout]    |                                     |
[INFO] [stdout]    |                                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:26:40
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:31:38
[INFO] [stdout]    |
[INFO] [stdout] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stdout]    |                                      ----^^^^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:36:57
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stdout]    |                                                         ----^^^^
[INFO] [stdout]    |                                                         |
[INFO] [stdout]    |                                                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:64:35
[INFO] [stdout]    |
[INFO] [stdout] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                   ----^^^^
[INFO] [stdout]    |                                   |
[INFO] [stdout]    |                                   help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                       ----^^^^
[INFO] [stdout]    |                                       |
[INFO] [stdout]    |                                       help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stdout]    |                                        ----^^^^
[INFO] [stdout]    |                                        |
[INFO] [stdout]    |                                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/builder.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |         let mut blocks = blocks;
[INFO] [stdout]    |             ----^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostMessageRequest`, `SlackApiChatUnfurlRequest`, `SlackMessageAttachment`
[INFO] [stdout]  --> tests/test_chat.rs:1:53
[INFO] [stdout]   |
[INFO] [stdout] 1 | ...t, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackMessageAttachmen...
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SlackBlockFile`
[INFO] [stdout]  --> tests/test_chat.rs:2:87
[INFO] [stdout]   |
[INFO] [stdout] 2 | use slack_web_api::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, Slac...
[INFO] [stdout]   |                                                                                       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> tests/test_chat.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SlackApiChatDeleteRequest`, `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostEphemeralRequest`, `SlackApiChatPostMessageRequest`, `SlackApiChatScheduleMessageRequest`, `SlackApiChatScheduledMessagesListRequest`, `SlackApiChatUnfurlRequest`, `SlackApiChatUpdateRequest`, `SlackMessageAttachment`
[INFO] [stdout]  --> tests/test_file.rs:1:26
[INFO] [stdout]   |
[INFO] [stdout] 1 | ...::{SlackApiChatDeleteRequest, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackApiFilesUploadRequest, SlackMessageAttachmen...
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CompositionObjectText`, `SlackAttachmentBuilder`, `SlackBlockContext`, `SlackBlockFile`, `SlackBlockHeader`, `SlackMessageBuilder`
[INFO] [stdout]  --> tests/test_file.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | ...::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, SlackMessageBuilder};
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> tests/test_file.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 15.13s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "23dc87036d66f6bc41c9d3b04abf9f084879edf1ba5a0b58a34232c9f589e783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23dc87036d66f6bc41c9d3b04abf9f084879edf1ba5a0b58a34232c9f589e783", kill_on_drop: false }`
[INFO] [stdout] 23dc87036d66f6bc41c9d3b04abf9f084879edf1ba5a0b58a34232c9f589e783
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e7af3f8ad96efd057d3f2ce184f854b760108b2c56f533d15226c08751d7da22
[INFO] running `Command { std: "docker" "start" "-a" "e7af3f8ad96efd057d3f2ce184f854b760108b2c56f533d15226c08751d7da22", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `serde_json::Value`
[INFO] [stderr]  --> src/api/files.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use serde_json::Value;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SlackBlockKitCompositionObject`
[INFO] [stderr]  --> src/entity/block_kit/block.rs:1:102
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::{BlockElementImage, BlockElementPlaneTextInput, CompositionObjectText, SlackBlockElement, SlackBlockKitCompositionObject};
[INFO] [stderr]   |                                                                                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn channel<S: Into<String>>(mut self, channel: S) -> SlackMessageBuilder {
[INFO] [stderr]    |                                     ----^^^^
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:26:40
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn icon_emoji<S: Into<String>>(mut self, icon_emoji: S) -> SlackMessageBuilder {
[INFO] [stderr]    |                                        ----^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:31:38
[INFO] [stderr]    |
[INFO] [stderr] 31 |     pub fn username<S: Into<String>>(mut self, username: S) -> SlackMessageBuilder {
[INFO] [stderr]    |                                      ----^^^^
[INFO] [stderr]    |                                      |
[INFO] [stderr]    |                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:36:57
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn attachments<A: Into<SlackMessageAttachment>>(mut self, attachments: Vec<A>) -> SlackMessageBuilder {
[INFO] [stderr]    |                                                         ----^^^^
[INFO] [stderr]    |                                                         |
[INFO] [stderr]    |                                                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:64:35
[INFO] [stderr]    |
[INFO] [stderr] 64 |     pub fn color<S: Into<String>>(mut self, color: S) -> SlackAttachmentBuilder {
[INFO] [stderr]    |                                   ----^^^^
[INFO] [stderr]    |                                   |
[INFO] [stderr]    |                                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:70:39
[INFO] [stderr]    |
[INFO] [stderr] 70 |     pub fn block<B: Into<SlackBlock>>(mut self, block: B) -> SlackAttachmentBuilder {
[INFO] [stderr]    |                                       ----^^^^
[INFO] [stderr]    |                                       |
[INFO] [stderr]    |                                       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:77:40
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn blocks<B: Into<SlackBlock>>(mut self, blocks: Vec<B>) -> SlackAttachmentBuilder {
[INFO] [stderr]    |                                        ----^^^^
[INFO] [stderr]    |                                        |
[INFO] [stderr]    |                                        help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/builder.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         let mut blocks = blocks;
[INFO] [stderr]    |             ----^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `slack-web-api` (lib) generated 10 warnings (run `cargo fix --lib -p slack-web-api` to apply 10 suggestions)
[INFO] [stderr] warning: `slack-web-api` (lib test) generated 10 warnings (10 duplicates)
[INFO] [stderr] warning: unused imports: `SlackApiChatDeleteRequest`, `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostEphemeralRequest`, `SlackApiChatPostMessageRequest`, `SlackApiChatScheduleMessageRequest`, `SlackApiChatScheduledMessagesListRequest`, `SlackApiChatUnfurlRequest`, `SlackApiChatUpdateRequest`, `SlackMessageAttachment`
[INFO] [stderr]  --> tests/test_file.rs:1:26
[INFO] [stderr]   |
[INFO] [stderr] 1 | ...::{SlackApiChatDeleteRequest, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackApiFilesUploadRequest, SlackMessageAttachmen...
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CompositionObjectText`, `SlackAttachmentBuilder`, `SlackBlockContext`, `SlackBlockFile`, `SlackBlockHeader`, `SlackMessageBuilder`
[INFO] [stderr]  --> tests/test_file.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | ...::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, SlackMessageBuilder};
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^               ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> tests/test_file.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `SlackApiChatGetPermalinkRequest`, `SlackApiChatMeMessageResponse`, `SlackApiChatPostMessageRequest`, `SlackApiChatUnfurlRequest`, `SlackMessageAttachment`
[INFO] [stderr]  --> tests/test_chat.rs:1:53
[INFO] [stderr]   |
[INFO] [stderr] 1 | ...t, SlackApiChatGetPermalinkRequest, SlackApiChatMeMessageRequest, SlackApiChatMeMessageResponse, SlackApiChatPostEphemeralRequest, SlackApiChatPostMessageRequest, SlackApiChatScheduledMessagesListRequest, SlackApiChatScheduleMessageRequest, SlackApiChatUnfurlRequest, SlackApiChatUpdateRequest, SlackMessageAttachmen...
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SlackBlockFile`
[INFO] [stderr]  --> tests/test_chat.rs:2:87
[INFO] [stderr]   |
[INFO] [stderr] 2 | use slack_web_api::{CompositionObjectText, SlackAttachmentBuilder, SlackBlockContext, SlackBlockFile, SlackBlockHeader, SlackClient, Slac...
[INFO] [stderr]   |                                                                                       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]  --> tests/test_chat.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::process::exit;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `slack-web-api` (test "test_file") generated 3 warnings (run `cargo fix --test "test_file"` to apply 3 suggestions)
[INFO] [stderr] warning: `slack-web-api` (test "test_chat") generated 3 warnings (run `cargo fix --test "test_chat"` to apply 3 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/slack_web_api-de6789f51f74dc39)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_chat.rs (/opt/rustwide/target/debug/deps/test_chat-fe7d8f8311bd3823)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test stdout ----
[INFO] [stdout] thread 'test' panicked at tests/test_chat.rs:7:51:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: NotPresent
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55f0bf6d2306 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55f0bf6d2306 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55f0bf6d2306 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55f0bf6d2306 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h623d9b51f2f453f1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55f0bf6fe090 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55f0bf6fe090 - core::fmt::write::hc9b6faf4ac2aeff7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55f0bf6cf21f - std::io::Write::write_fmt::he04625a3a989fec3
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15
[INFO] [stdout]    7:     0x55f0bf6d20e4 - std::sys_common::backtrace::_print::hd5d66399c7df88a2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55f0bf6d20e4 - std::sys_common::backtrace::print::he81ed2da642d37e5
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55f0bf6d3e57 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d
[INFO] [stdout]   10:     0x55f0bf6d3b3d - std::panicking::default_hook::h6a1694a91d09b278
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55f0bf468137 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h616ac37fa3cd6c8f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   12:     0x55f0bf468137 - test::test_main::{{closure}}::h00d84697cefdcbb6
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21
[INFO] [stdout]   13:     0x55f0bf6d4476 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcb3fe3b9bb537ba8
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9
[INFO] [stdout]   14:     0x55f0bf6d4476 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13
[INFO] [stdout]   15:     0x55f0bf6d41c2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13
[INFO] [stdout]   16:     0x55f0bf6d2806 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55f0bf6d3f20 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5
[INFO] [stdout]   18:     0x55f0bf2cf115 - core::panicking::panic_fmt::hcc9f77c5c132af55
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55f0bf2cf753 - core::result::unwrap_failed::hbe14f498be1452f9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5
[INFO] [stdout]   20:     0x55f0bf420d14 - core::result::Result<T,E>::unwrap::h62572d38cd207882
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1073:23
[INFO] [stdout]   21:     0x55f0bf328c44 - test_chat::test::{{closure}}::haf5da1a7a9155d5d
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_chat.rs:7:17
[INFO] [stdout]   22:     0x55f0bf3bab38 - <core::pin::Pin<P> as core::future::future::Future>::poll::h3cb17292aade435c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/future/future.rs:124:9
[INFO] [stdout]   23:     0x55f0bf3baa4b - <core::pin::Pin<P> as core::future::future::Future>::poll::h18a2bf119ec878ef
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/future/future.rs:124:9
[INFO] [stdout]   24:     0x55f0bf367274 - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::{{closure}}::h13bc5f80ff05390e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:665:57
[INFO] [stdout]   25:     0x55f0bf36719a - tokio::runtime::coop::with_budget::he0de579ba6d9ae25
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/coop.rs:107:5
[INFO] [stdout]   26:     0x55f0bf36719a - tokio::runtime::coop::budget::h4d4b717eb618f82f
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/coop.rs:73:5
[INFO] [stdout]   27:     0x55f0bf36719a - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::{{closure}}::h07e971d71581fbcd
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:665:25
[INFO] [stdout]   28:     0x55f0bf365e2c - tokio::runtime::scheduler::current_thread::Context::enter::h700480c6b539f944
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:410:19
[INFO] [stdout]   29:     0x55f0bf36699e - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::{{closure}}::h94f68c4caaed5e23
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:664:36
[INFO] [stdout]   30:     0x55f0bf3666ab - tokio::runtime::scheduler::current_thread::CoreGuard::enter::{{closure}}::h847f21e08ba42744
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:743:68
[INFO] [stdout]   31:     0x55f0bf3ba2bb - tokio::runtime::context::scoped::Scoped<T>::set::hfcf1389ac61a702a
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context/scoped.rs:40:9
[INFO] [stdout]   32:     0x55f0bf362d79 - tokio::runtime::context::set_scheduler::{{closure}}::hb949001d4b49830e
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context.rs:176:26
[INFO] [stdout]   33:     0x55f0bf41d706 - std::thread::local::LocalKey<T>::try_with::ha03dca480c7c0b7f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/local.rs:270:16
[INFO] [stdout]   34:     0x55f0bf41bc8a - std::thread::local::LocalKey<T>::with::h6cf820a443b2a197
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/local.rs:246:9
[INFO] [stdout]   35:     0x55f0bf362d2d - tokio::runtime::context::set_scheduler::hc34f56b27423e944
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context.rs:176:9
[INFO] [stdout]   36:     0x55f0bf366440 - tokio::runtime::scheduler::current_thread::CoreGuard::enter::h31d200128c01f3b1
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:743:27
[INFO] [stdout]   37:     0x55f0bf3666dd - tokio::runtime::scheduler::current_thread::CoreGuard::block_on::h575da140983bc8f1
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:652:19
[INFO] [stdout]   38:     0x55f0bf3631fd - tokio::runtime::scheduler::current_thread::CurrentThread::block_on::{{closure}}::hd2241c9dbe8647f0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:175:28
[INFO] [stdout]   39:     0x55f0bf41459a - tokio::runtime::context::runtime::enter_runtime::h2cff54f455a22803
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/context/runtime.rs:65:16
[INFO] [stdout]   40:     0x55f0bf36310e - tokio::runtime::scheduler::current_thread::CurrentThread::block_on::ha1d1bc61e1c2e4bf
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/scheduler/current_thread/mod.rs:167:9
[INFO] [stdout]   41:     0x55f0bf30a76d - tokio::runtime::runtime::Runtime::block_on::hb64a74f1d921341d
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/tokio-1.35.1/src/runtime/runtime.rs:348:47
[INFO] [stdout]   42:     0x55f0bf328977 - test_chat::test::h50abcc956772b6e5
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_chat.rs:69:5
[INFO] [stdout]   43:     0x55f0bf3287f7 - test_chat::test::{{closure}}::h5fef9627ea6ebfbc
[INFO] [stdout]                                at /opt/rustwide/workdir/tests/test_chat.rs:6:16
[INFO] [stdout]   44:     0x55f0bf388646 - core::ops::function::FnOnce::call_once::hbc5ff7fdd2b8f364
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   45:     0x55f0bf46da0f - core::ops::function::FnOnce::call_once::hd64d26f405258157
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x55f0bf46da0f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18
[INFO] [stdout]   47:     0x55f0bf46c791 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60
[INFO] [stdout]   48:     0x55f0bf46c791 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   49:     0x55f0bf46c791 - std::panicking::try::do_call::he61b0a958b795a41
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   50:     0x55f0bf46c791 - std::panicking::try::h7309da130f906eb7
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   51:     0x55f0bf46c791 - std::panic::catch_unwind::hc5c3a06fdaf0a92a
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   52:     0x55f0bf46c791 - test::run_test_in_process::h7e7b7c71c3324e0f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27
[INFO] [stdout]   53:     0x55f0bf46c791 - test::run_test::{{closure}}::h1f509f28f5cf20b1
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43
[INFO] [stdout]   54:     0x55f0bf433ac6 - test::run_test::{{closure}}::h1754218abf443f6d
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41
[INFO] [stdout]   55:     0x55f0bf433ac6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   56:     0x55f0bf438b27 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17
[INFO] [stdout]   57:     0x55f0bf438b27 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   58:     0x55f0bf438b27 - std::panicking::try::do_call::h144b3048b546f835
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40
[INFO] [stdout]   59:     0x55f0bf438b27 - std::panicking::try::h978244d04646189f
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19
[INFO] [stdout]   60:     0x55f0bf438b27 - std::panic::catch_unwind::hdf436369d188fe86
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14
[INFO] [stdout]   61:     0x55f0bf438b27 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30
[INFO] [stdout]   62:     0x55f0bf438b27 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   63:     0x55f0bf6d91b5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5d7c8f150ab9c84c
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   64:     0x55f0bf6d91b5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h570d5b005c242c15
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9
[INFO] [stdout]   65:     0x55f0bf6d91b5 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad
[INFO] [stdout]                                at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   66:     0x7febc236bac3 - <unknown>
[INFO] [stdout]   67:     0x7febc23fcbf4 - __clone
[INFO] [stdout]   68:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--test test_chat`
[INFO] running `Command { std: "docker" "inspect" "e7af3f8ad96efd057d3f2ce184f854b760108b2c56f533d15226c08751d7da22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7af3f8ad96efd057d3f2ce184f854b760108b2c56f533d15226c08751d7da22", kill_on_drop: false }`
[INFO] [stdout] e7af3f8ad96efd057d3f2ce184f854b760108b2c56f533d15226c08751d7da22
