[INFO] fetching crate flic-rust-client 0.4.0...
[INFO] checking flic-rust-client-0.4.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608
[INFO] extracting crate flic-rust-client 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate flic-rust-client 0.4.0
[INFO] finished tweaking crates.io crate flic-rust-client 0.4.0
[INFO] tweaked toml for crates.io crate flic-rust-client 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate flic-rust-client 0.4.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flic-rust-client 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 195d242245a148b924c4f21cfda83a744dc39b4365a0beefe9385388ee793822
[INFO] running `Command { std: "docker" "start" "-a" "195d242245a148b924c4f21cfda83a744dc39b4365a0beefe9385388ee793822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "195d242245a148b924c4f21cfda83a744dc39b4365a0beefe9385388ee793822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195d242245a148b924c4f21cfda83a744dc39b4365a0beefe9385388ee793822", kill_on_drop: false }`
[INFO] [stdout] 195d242245a148b924c4f21cfda83a744dc39b4365a0beefe9385388ee793822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 15f97bcb64552cce9a56e831212245617e9073d41d124195ae9a167bb05cb062
[INFO] running `Command { std: "docker" "start" "-a" "15f97bcb64552cce9a56e831212245617e9073d41d124195ae9a167bb05cb062", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling futures-channel v0.3.29
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]    Compiling winnow v0.5.19
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]     Checking futures-io v0.3.29
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking mio v0.8.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling toml_edit v0.20.7
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling proc-macro-crate v2.0.0
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling num_enum_derive v0.7.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking num_enum v0.7.1
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking flic-rust-client v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/commands/stream_mapper.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 if let Ok(latency_mode) = latency_mode.try_into() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/commands/stream_mapper.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 if let Ok(latency_mode) = latency_mode.try_into() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/commands/stream_mapper.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn map(&mut self, command: Command) -> Drain<u8> {
[INFO] [stdout]    |                ^^^^^^^^^                       --------- the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn map(&mut self, command: Command) -> Drain<'_, u8> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `flicbtn`
[INFO] [stdout]  --> examples/ping.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use flicbtn::*;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `flicbtn`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `flicbtn`, use `cargo add flicbtn` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `flicbtn`
[INFO] [stdout]  --> examples/simpleclient.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use flicbtn::*;
[INFO] [stdout]   |     ^^^^^^^ use of unresolved module or unlinked crate `flicbtn`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `flicbtn`, use `cargo add flicbtn` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/simpleclient.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let client = FlicClient::new("127.0.0.1:5551")
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     let client2 = client1.clone();
[INFO] [stdout]    |                           ----- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `client` an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let client: /* Type */ = FlicClient::new("127.0.0.1:5551")
[INFO] [stdout]    |               ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/ping.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let client = FlicClient::new("127.0.0.1:5551")
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     let client2 = client1.clone();
[INFO] [stdout]    |                           ----- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving `client` an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let client: /* Type */ = FlicClient::new("127.0.0.1:5551")
[INFO] [stdout]    |               ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flic-rust-client` (example "simpleclient") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `flic-rust-client` (example "ping") due to 2 previous errors
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/commands/stream_mapper.rs:39:20
[INFO] [stdout]    |
[INFO] [stdout] 39 |                 if let Ok(latency_mode) = latency_mode.try_into() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/commands/stream_mapper.rs:56:20
[INFO] [stdout]    |
[INFO] [stdout] 56 |                 if let Ok(latency_mode) = latency_mode.try_into() {
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/commands/stream_mapper.rs:19:16
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn map(&mut self, command: Command) -> Drain<u8> {
[INFO] [stdout]    |                ^^^^^^^^^                       --------- the same lifetime is hidden here
[INFO] [stdout]    |                |
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn map(&mut self, command: Command) -> Drain<'_, u8> {
[INFO] [stdout]    |                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "15f97bcb64552cce9a56e831212245617e9073d41d124195ae9a167bb05cb062", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15f97bcb64552cce9a56e831212245617e9073d41d124195ae9a167bb05cb062", kill_on_drop: false }`
[INFO] [stdout] 15f97bcb64552cce9a56e831212245617e9073d41d124195ae9a167bb05cb062