[INFO] crate chicon 0.1.3 is already in cache
[INFO] checking chicon-0.1.3 against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] extracting crate chicon 0.1.3 into work/builds/worker-2/source
[INFO] validating manifest of crates.io crate chicon 0.1.3 on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate chicon 0.1.3
[INFO] finished tweaking crates.io crate chicon 0.1.3
[INFO] tweaked toml for crates.io crate chicon 0.1.3 written to work/builds/worker-2/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] aa7ebb60d2273d13fddc333ab9e394c751c0f8d807f0c6c71759435ef67965af
[INFO] running `"docker" "start" "-a" "aa7ebb60d2273d13fddc333ab9e394c751c0f8d807f0c6c71759435ef67965af"`
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking shlex v0.1.1
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling rusoto_core v0.39.0
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking ssh2 v0.3.3
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking osproto v0.1.2
[INFO] [stderr]     Checking reqwest v0.9.22
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking hmac v0.5.0
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking tokio-signal v0.2.7
[INFO] [stderr]     Checking tokio-process v0.2.4
[INFO] [stderr]     Checking rusoto_credential v0.39.0
[INFO] [stderr]     Checking osauth v0.2.5
[INFO] [stderr]     Checking rusoto_s3 v0.39.0
[INFO] [stderr]     Checking chicon v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mem.rs:328:13
[INFO] [stderr]     |
[INFO] [stderr] 328 |         let mut cloned_content: Vec<u8>;
[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/mem.rs:328:13
[INFO] [stderr]     |
[INFO] [stderr] 328 |         let mut cloned_content: Vec<u8>;
[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]     Finished dev [unoptimized + debuginfo] target(s) in 23.93s
[INFO] running `"docker" "inspect" "aa7ebb60d2273d13fddc333ab9e394c751c0f8d807f0c6c71759435ef67965af"`
[INFO] running `"docker" "rm" "-f" "aa7ebb60d2273d13fddc333ab9e394c751c0f8d807f0c6c71759435ef67965af"`
[INFO] [stdout] aa7ebb60d2273d13fddc333ab9e394c751c0f8d807f0c6c71759435ef67965af