[INFO] fetching crate footile 0.3.1...
[INFO] checking footile-0.3.1 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate footile 0.3.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate footile 0.3.1 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate footile 0.3.1
[INFO] finished tweaking crates.io crate footile 0.3.1
[INFO] tweaked toml for crates.io crate footile 0.3.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bc13b72628684f3bff80f8360013064570b82ac860c620efc376c0f4ba8b1850
[INFO] running `"docker" "start" "-a" "bc13b72628684f3bff80f8360013064570b82ac860c620efc376c0f4ba8b1850"`
[INFO] [stderr]     Checking inflate v0.3.4
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking png v0.10.0
[INFO] [stderr]     Checking footile v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/rgb8.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let mut out = clr.over_alpha(*bot, *m);
[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/rgba8.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let mut out = clr.over_alpha(*bot, *m);
[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/rgb8.rs:76:13
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let mut out = clr.over_alpha(*bot, *m);
[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/rgba8.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |         let mut out = clr.over_alpha(*bot, *m);
[INFO] [stderr]     |             ----^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.26s
[INFO] running `"docker" "inspect" "bc13b72628684f3bff80f8360013064570b82ac860c620efc376c0f4ba8b1850"`
[INFO] running `"docker" "rm" "-f" "bc13b72628684f3bff80f8360013064570b82ac860c620efc376c0f4ba8b1850"`
[INFO] [stdout] bc13b72628684f3bff80f8360013064570b82ac860c620efc376c0f4ba8b1850