[INFO] crate flic 0.1.6 is already in cache
[INFO] checking flic-0.1.6 against try#f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f for pr-69560
[INFO] extracting crate flic 0.1.6 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate flic 0.1.6 on toolchain f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate flic 0.1.6
[INFO] finished tweaking crates.io crate flic 0.1.6
[INFO] tweaked toml for crates.io crate flic 0.1.6 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f" "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" "+f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+f503dc8e6998ec30e0e3a3937c0fd18331a5dc9f" "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] f5197a76ff5be73ffcd140f1aa00026b08890613e9a7da394c49ee9472ebcefb
[INFO] running `"docker" "start" "-a" "f5197a76ff5be73ffcd140f1aa00026b08890613e9a7da394c49ee9472ebcefb"`
[INFO] [stderr]    Compiling sdl2-sys v0.30.0
[INFO] [stderr]     Checking flic v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/codec/codec007.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut row = &mut dst.buf[start..end];
[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]     Checking sdl2 v0.30.0
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/codec/codec015.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut row = &mut row[start..end];
[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/codec/codec007.rs:86:13
[INFO] [stderr]    |
[INFO] [stderr] 86 |         let mut row = &mut dst.buf[start..end];
[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/codec/codec015.rs:50:13
[INFO] [stderr]    |
[INFO] [stderr] 50 |         let mut row = &mut row[start..end];
[INFO] [stderr]    |             ----^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.88s
[INFO] running `"docker" "inspect" "f5197a76ff5be73ffcd140f1aa00026b08890613e9a7da394c49ee9472ebcefb"`
[INFO] running `"docker" "rm" "-f" "f5197a76ff5be73ffcd140f1aa00026b08890613e9a7da394c49ee9472ebcefb"`
[INFO] [stdout] f5197a76ff5be73ffcd140f1aa00026b08890613e9a7da394c49ee9472ebcefb