Dec 18 05:18:09.894 INFO checking Tahler/snoss against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 05:18:09.894 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/Tahler/snoss:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 05:18:10.032 INFO [stdout] e636601ab700bd144343df4577d19ec56095993ad136eb13d51976fe246d480b
Dec 18 05:18:10.036 INFO running `"docker" "start" "-a" "e636601ab700bd144343df4577d19ec56095993ad136eb13d51976fe246d480b"`
Dec 18 05:18:10.644 INFO [stderr]    Compiling miniz-sys v0.1.9
Dec 18 05:18:10.644 INFO [stderr]     Checking ordered-float v0.4.0
Dec 18 05:18:10.644 INFO [stderr]     Checking serde_yaml v0.6.1
Dec 18 05:18:10.645 INFO [stderr]     Checking chrono v0.3.0
Dec 18 05:18:11.144 INFO [stderr]     Checking serde-value v0.4.0
Dec 18 05:18:12.703 INFO [stderr]     Checking flate2 v0.2.17
Dec 18 05:18:13.374 INFO [stderr]     Checking log4rs v0.6.1
Dec 18 05:18:15.356 INFO [stderr]     Checking snoss v0.1.0 (/opt/crater/workdir)
Dec 18 05:18:18.372 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:18:18.372 INFO [stderr]    --> src/os/exec.rs:194:13
Dec 18 05:18:18.372 INFO [stderr]     |
Dec 18 05:18:18.372 INFO [stderr] 194 |         let mut stack = pcb.get_stack_mut();
Dec 18 05:18:18.372 INFO [stderr]     |             ----^^^^^
Dec 18 05:18:18.372 INFO [stderr]     |             |
Dec 18 05:18:18.372 INFO [stderr]     |             help: remove this `mut`
Dec 18 05:18:18.372 INFO [stderr]     |
Dec 18 05:18:18.372 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 05:18:18.372 INFO [stderr] 
Dec 18 05:18:18.404 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:18:18.404 INFO [stderr]   --> src/os/ps/pcb.rs:63:13
Dec 18 05:18:18.404 INFO [stderr]    |
Dec 18 05:18:18.404 INFO [stderr] 63 |         let mut ctx = &mut self.header.ctx;
Dec 18 05:18:18.404 INFO [stderr]    |             ----^^^
Dec 18 05:18:18.404 INFO [stderr]    |             |
Dec 18 05:18:18.404 INFO [stderr]    |             help: remove this `mut`
Dec 18 05:18:18.404 INFO [stderr] 
Dec 18 05:18:18.448 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:18:18.448 INFO [stderr]    --> src/os/exec.rs:194:13
Dec 18 05:18:18.448 INFO [stderr]     |
Dec 18 05:18:18.448 INFO [stderr] 194 |         let mut stack = pcb.get_stack_mut();
Dec 18 05:18:18.448 INFO [stderr]     |             ----^^^^^
Dec 18 05:18:18.448 INFO [stderr]     |             |
Dec 18 05:18:18.448 INFO [stderr]     |             help: remove this `mut`
Dec 18 05:18:18.448 INFO [stderr]     |
Dec 18 05:18:18.448 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 18 05:18:18.448 INFO [stderr] 
Dec 18 05:18:18.504 INFO [stderr] warning: variable does not need to be mutable
Dec 18 05:18:18.504 INFO [stderr]   --> src/os/ps/pcb.rs:63:13
Dec 18 05:18:18.504 INFO [stderr]    |
Dec 18 05:18:18.504 INFO [stderr] 63 |         let mut ctx = &mut self.header.ctx;
Dec 18 05:18:18.504 INFO [stderr]    |             ----^^^
Dec 18 05:18:18.504 INFO [stderr]    |             |
Dec 18 05:18:18.504 INFO [stderr]    |             help: remove this `mut`
Dec 18 05:18:18.504 INFO [stderr] 
Dec 18 05:18:18.575 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.02s
Dec 18 05:18:19.335 INFO running `"docker" "inspect" "e636601ab700bd144343df4577d19ec56095993ad136eb13d51976fe246d480b"`
Dec 18 05:18:19.662 INFO running `"docker" "rm" "-f" "e636601ab700bd144343df4577d19ec56095993ad136eb13d51976fe246d480b"`
Dec 18 05:18:19.976 INFO [stdout] e636601ab700bd144343df4577d19ec56095993ad136eb13d51976fe246d480b