Dec 04 23:56:38.128 INFO checking Tahler/snoss against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 23:56:38.128 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-7/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 23:56:40.401 INFO [stdout] da30463d1bd5ba054d2e6e4b93553beb49dbc70470c444603e13927c1da4ff56
Dec 04 23:56:40.404 INFO running `"docker" "start" "-a" "da30463d1bd5ba054d2e6e4b93553beb49dbc70470c444603e13927c1da4ff56"`
Dec 04 23:56:43.316 INFO [stderr] usermod: no changes
Dec 04 23:56:43.499 INFO [stderr]     Checking ordered-float v0.4.0
Dec 04 23:56:43.499 INFO [stderr]     Checking serde_yaml v0.6.1
Dec 04 23:56:44.115 INFO [stderr]     Checking serde-value v0.4.0
Dec 04 23:56:44.794 INFO [stderr]     Checking log4rs v0.6.1
Dec 04 23:56:47.479 INFO [stderr]     Checking snoss v0.1.0 (/source)
Dec 04 23:56:51.927 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:56:51.927 INFO [stderr]    --> src/os/exec.rs:194:13
Dec 04 23:56:51.927 INFO [stderr]     |
Dec 04 23:56:51.927 INFO [stderr] 194 |         let mut stack = pcb.get_stack_mut();
Dec 04 23:56:51.927 INFO [stderr]     |             ----^^^^^
Dec 04 23:56:51.927 INFO [stderr]     |             |
Dec 04 23:56:51.927 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:56:51.927 INFO [stderr]     |
Dec 04 23:56:51.927 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 23:56:51.927 INFO [stderr] 
Dec 04 23:56:51.955 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:56:51.956 INFO [stderr]   --> src/os/ps/pcb.rs:63:13
Dec 04 23:56:51.956 INFO [stderr]    |
Dec 04 23:56:51.956 INFO [stderr] 63 |         let mut ctx = &mut self.header.ctx;
Dec 04 23:56:51.956 INFO [stderr]    |             ----^^^
Dec 04 23:56:51.956 INFO [stderr]    |             |
Dec 04 23:56:51.956 INFO [stderr]    |             help: remove this `mut`
Dec 04 23:56:51.959 INFO [stderr] 
Dec 04 23:56:51.994 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:56:51.994 INFO [stderr]    --> src/os/exec.rs:194:13
Dec 04 23:56:51.999 INFO [stderr]     |
Dec 04 23:56:51.999 INFO [stderr] 194 |         let mut stack = pcb.get_stack_mut();
Dec 04 23:56:51.999 INFO [stderr]     |             ----^^^^^
Dec 04 23:56:51.999 INFO [stderr]     |             |
Dec 04 23:56:51.999 INFO [stderr]     |             help: remove this `mut`
Dec 04 23:56:51.999 INFO [stderr]     |
Dec 04 23:56:51.999 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 23:56:51.999 INFO [stderr] 
Dec 04 23:56:52.026 INFO [stderr] warning: variable does not need to be mutable
Dec 04 23:56:52.026 INFO [stderr]   --> src/os/ps/pcb.rs:63:13
Dec 04 23:56:52.026 INFO [stderr]    |
Dec 04 23:56:52.026 INFO [stderr] 63 |         let mut ctx = &mut self.header.ctx;
Dec 04 23:56:52.026 INFO [stderr]    |             ----^^^
Dec 04 23:56:52.026 INFO [stderr]    |             |
Dec 04 23:56:52.026 INFO [stderr]    |             help: remove this `mut`
Dec 04 23:56:52.026 INFO [stderr] 
Dec 04 23:56:52.064 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.73s
Dec 04 23:56:52.069 INFO [stderr] su: No module specific data is present
Dec 04 23:56:52.384 INFO running `"docker" "inspect" "da30463d1bd5ba054d2e6e4b93553beb49dbc70470c444603e13927c1da4ff56"`
Dec 04 23:56:52.500 INFO running `"docker" "rm" "-f" "da30463d1bd5ba054d2e6e4b93553beb49dbc70470c444603e13927c1da4ff56"`
Dec 04 23:56:52.711 INFO [stdout] da30463d1bd5ba054d2e6e4b93553beb49dbc70470c444603e13927c1da4ff56