[INFO] fetching crate embedded_redis_client 0.1.0...
[INFO] checking embedded_redis_client-0.1.0 against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] extracting crate embedded_redis_client 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate embedded_redis_client 0.1.0 on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate embedded_redis_client 0.1.0
[INFO] finished tweaking crates.io crate embedded_redis_client 0.1.0
[INFO] tweaked toml for crates.io crate embedded_redis_client 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2cc83e45164b1057ededca4d073e8727addfe2761dcdf11eeaf09eadc8770215
[INFO] running `Command { std: "docker" "start" "-a" "2cc83e45164b1057ededca4d073e8727addfe2761dcdf11eeaf09eadc8770215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cc83e45164b1057ededca4d073e8727addfe2761dcdf11eeaf09eadc8770215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cc83e45164b1057ededca4d073e8727addfe2761dcdf11eeaf09eadc8770215", kill_on_drop: false }`
[INFO] [stdout] 2cc83e45164b1057ededca4d073e8727addfe2761dcdf11eeaf09eadc8770215
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec7589cfaa63c6789db0a01baab41c146eaf1ad1e5ccc7f484bc198a272726d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec7589cfaa63c6789db0a01baab41c146eaf1ad1e5ccc7f484bc198a272726d2", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr] note: Switching to Edition 2021 will enable the use of the version 2 feature resolver in Cargo.
[INFO] [stderr] This may cause some dependencies to be built with fewer features enabled than previously.
[INFO] [stderr] More information about the resolver changes may be found at https://doc.rust-lang.org/nightly/edition-guide/rust-2021/default-cargo-resolver.html
[INFO] [stderr] When building the following dependencies, the given features will no longer be used:
[INFO] [stderr] 
[INFO] [stderr]   async-std v1.9.0: async-attributes, attributes
[INFO] [stderr]   futures-channel v0.3.16: default
[INFO] [stderr]   getrandom v0.2.3: std
[INFO] [stderr]   syn v1.0.75 (as host dependency): visit
[INFO] [stderr] 
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures-io v0.3.16
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking futures-sink v0.3.16
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling serde v1.0.128
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking arc-swap v1.3.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking sha1 v0.6.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling futures-util v0.3.16
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]     Checking futures-lite v1.12.0
[INFO] [stderr]     Checking futures-channel v0.3.16
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking combine v4.6.0
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking redis v0.19.0
[INFO] [stderr]     Checking embedded_redis_client v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/lib.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/embedded_redis_client/embedded_redis_client.rs (2 fixes)
[INFO] [stderr]        Fixed src/embedded_redis_server/states/started.rs (1 fix)
[INFO] [stdout] warning: function is never used: `get_multiplexed_redis_server_connection`
[INFO] [stdout]    --> src/embedded_redis_server/embedded_redis_server.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub async fn get_multiplexed_redis_server_connection(
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `server_process`
[INFO] [stdout]   --> src/embedded_redis_server/states/ready.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     server_process: StartedRedisServerProcess,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connection`
[INFO] [stdout]  --> src/embedded_redis_server/states/running_in_another_process.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     connection: redis::Connection,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kill_process_occupying_target_tcp_port`
[INFO] [stdout]  --> src/embedded_redis_server/util.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn kill_process_occupying_target_tcp_port(port: u16) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_newline`
[INFO] [stdout]   --> src/embedded_redis_server/util.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn trim_newline(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_multiplexed_redis_server_connection`
[INFO] [stdout]    --> src/embedded_redis_server/embedded_redis_server.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub async fn get_multiplexed_redis_server_connection(
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `server_process`
[INFO] [stdout]   --> src/embedded_redis_server/states/ready.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     server_process: StartedRedisServerProcess,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connection`
[INFO] [stdout]  --> src/embedded_redis_server/states/running_in_another_process.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     connection: redis::Connection,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kill_process_occupying_target_tcp_port`
[INFO] [stdout]  --> src/embedded_redis_server/util.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn kill_process_occupying_target_tcp_port(port: u16) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_newline`
[INFO] [stdout]   --> src/embedded_redis_server/util.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn trim_newline(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.88s
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]     Checking futures-channel v0.3.16
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling futures-macro v0.3.16
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.128
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking value-bag v1.0.0-alpha.7
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.16
[INFO] [stderr]     Checking polling v2.1.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking tokio-util v0.6.7
[INFO] [stderr]     Checking async-io v1.6.0
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking futures-executor v0.3.16
[INFO] [stderr]     Checking combine v4.6.0
[INFO] [stderr]     Checking futures v0.3.16
[INFO] [stderr]     Checking serde v1.0.128
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking redis v0.19.0
[INFO] [stderr]     Checking embedded_redis_client v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `get_multiplexed_redis_server_connection`
[INFO] [stdout]    --> src/embedded_redis_server/embedded_redis_server.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub async fn get_multiplexed_redis_server_connection(
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `server_process`
[INFO] [stdout]   --> src/embedded_redis_server/states/ready.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     server_process: StartedRedisServerProcess,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connection`
[INFO] [stdout]  --> src/embedded_redis_server/states/running_in_another_process.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     connection: redis::Connection,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kill_process_occupying_target_tcp_port`
[INFO] [stdout]  --> src/embedded_redis_server/util.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn kill_process_occupying_target_tcp_port(port: u16) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_newline`
[INFO] [stdout]   --> src/embedded_redis_server/util.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn trim_newline(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_multiplexed_redis_server_connection`
[INFO] [stdout]    --> src/embedded_redis_server/embedded_redis_server.rs:109:18
[INFO] [stdout]     |
[INFO] [stdout] 109 |     pub async fn get_multiplexed_redis_server_connection(
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `server_process`
[INFO] [stdout]   --> src/embedded_redis_server/states/ready.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     server_process: StartedRedisServerProcess,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `connection`
[INFO] [stdout]  --> src/embedded_redis_server/states/running_in_another_process.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     connection: redis::Connection,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `kill_process_occupying_target_tcp_port`
[INFO] [stdout]  --> src/embedded_redis_server/util.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn kill_process_occupying_target_tcp_port(port: u16) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `trim_newline`
[INFO] [stdout]   --> src/embedded_redis_server/util.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn trim_newline(s: &mut String) {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 32.41s
[INFO] running `Command { std: "docker" "inspect" "ec7589cfaa63c6789db0a01baab41c146eaf1ad1e5ccc7f484bc198a272726d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec7589cfaa63c6789db0a01baab41c146eaf1ad1e5ccc7f484bc198a272726d2", kill_on_drop: false }`
[INFO] [stdout] ec7589cfaa63c6789db0a01baab41c146eaf1ad1e5ccc7f484bc198a272726d2