Dec 05 06:37:20.539 INFO checking skylane-0.1.2 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 06:37:20.539 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 05 06:37:21.049 INFO [stdout] 71d8dd25c4c9f2dd79abbc93182717a71f91bf64288df03cb2c029e05a99bd25
Dec 05 06:37:21.055 INFO running `"docker" "start" "-a" "71d8dd25c4c9f2dd79abbc93182717a71f91bf64288df03cb2c029e05a99bd25"`
Dec 05 06:37:21.993 INFO [stderr] usermod: no changes
Dec 05 06:37:22.039 INFO [stderr]     Checking skylane v0.1.2 (/source)
Dec 05 06:37:23.375 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:23.375 INFO [stderr]    --> src/connection.rs:201:22
Dec 05 06:37:23.375 INFO [stderr]     |
Dec 05 06:37:23.375 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Dec 05 06:37:23.375 INFO [stderr]     |                      ----^^^^^^^^^
Dec 05 06:37:23.375 INFO [stderr]     |                      |
Dec 05 06:37:23.375 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:23.375 INFO [stderr]     |
Dec 05 06:37:23.375 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:37:23.375 INFO [stderr] 
Dec 05 06:37:23.375 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:23.375 INFO [stderr]    --> src/connection.rs:202:22
Dec 05 06:37:23.375 INFO [stderr]     |
Dec 05 06:37:23.375 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Dec 05 06:37:23.375 INFO [stderr]     |                      ----^^^^^^^
Dec 05 06:37:23.375 INFO [stderr]     |                      |
Dec 05 06:37:23.375 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:23.375 INFO [stderr] 
Dec 05 06:37:23.555 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:23.555 INFO [stderr]    --> src/connection.rs:201:22
Dec 05 06:37:23.555 INFO [stderr]     |
Dec 05 06:37:23.555 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Dec 05 06:37:23.555 INFO [stderr]     |                      ----^^^^^^^^^
Dec 05 06:37:23.555 INFO [stderr]     |                      |
Dec 05 06:37:23.555 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:23.555 INFO [stderr]     |
Dec 05 06:37:23.555 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:37:23.555 INFO [stderr] 
Dec 05 06:37:23.555 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:23.555 INFO [stderr]    --> src/connection.rs:202:22
Dec 05 06:37:23.555 INFO [stderr]     |
Dec 05 06:37:23.555 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Dec 05 06:37:23.555 INFO [stderr]     |                      ----^^^^^^^
Dec 05 06:37:23.555 INFO [stderr]     |                      |
Dec 05 06:37:23.555 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:23.555 INFO [stderr] 
Dec 05 06:37:23.633 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
Dec 05 06:37:23.639 INFO [stderr] su: No module specific data is present
Dec 05 06:37:24.264 INFO running `"docker" "inspect" "71d8dd25c4c9f2dd79abbc93182717a71f91bf64288df03cb2c029e05a99bd25"`
Dec 05 06:37:24.580 INFO running `"docker" "rm" "-f" "71d8dd25c4c9f2dd79abbc93182717a71f91bf64288df03cb2c029e05a99bd25"`
Dec 05 06:37:24.804 INFO [stdout] 71d8dd25c4c9f2dd79abbc93182717a71f91bf64288df03cb2c029e05a99bd25