Dec 05 06:37:24.140 INFO checking skylane-0.1.2 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 06:37:24.140 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 06:37:24.595 INFO [stdout] 1432b48fb13152ab752d17fbc7c5613050c683bc8c77c2df379e852dd447bfcd
Dec 05 06:37:24.596 INFO running `"docker" "start" "-a" "1432b48fb13152ab752d17fbc7c5613050c683bc8c77c2df379e852dd447bfcd"`
Dec 05 06:37:25.623 INFO [stderr] usermod: no changes
Dec 05 06:37:25.691 INFO [stderr]     Checking skylane v0.1.2 (/source)
Dec 05 06:37:26.843 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:26.843 INFO [stderr]    --> src/connection.rs:201:22
Dec 05 06:37:26.843 INFO [stderr]     |
Dec 05 06:37:26.843 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Dec 05 06:37:26.843 INFO [stderr]     |                      ----^^^^^^^^^
Dec 05 06:37:26.843 INFO [stderr]     |                      |
Dec 05 06:37:26.843 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:26.843 INFO [stderr]     |
Dec 05 06:37:26.843 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:37:26.843 INFO [stderr] 
Dec 05 06:37:26.843 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:26.843 INFO [stderr]    --> src/connection.rs:202:22
Dec 05 06:37:26.843 INFO [stderr]     |
Dec 05 06:37:26.843 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Dec 05 06:37:26.843 INFO [stderr]     |                      ----^^^^^^^
Dec 05 06:37:26.843 INFO [stderr]     |                      |
Dec 05 06:37:26.843 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:26.843 INFO [stderr] 
Dec 05 06:37:27.122 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:27.122 INFO [stderr]    --> src/connection.rs:201:22
Dec 05 06:37:27.122 INFO [stderr]     |
Dec 05 06:37:27.122 INFO [stderr] 201 |                      mut bytes_buf: &mut Cursor<&[u8]>,
Dec 05 06:37:27.122 INFO [stderr]     |                      ----^^^^^^^^^
Dec 05 06:37:27.122 INFO [stderr]     |                      |
Dec 05 06:37:27.122 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:27.122 INFO [stderr]     |
Dec 05 06:37:27.123 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 05 06:37:27.123 INFO [stderr] 
Dec 05 06:37:27.123 INFO [stderr] warning: variable does not need to be mutable
Dec 05 06:37:27.123 INFO [stderr]    --> src/connection.rs:202:22
Dec 05 06:37:27.123 INFO [stderr]     |
Dec 05 06:37:27.123 INFO [stderr] 202 |                      mut fds_buf: &mut Cursor<&[u8]>)
Dec 05 06:37:27.123 INFO [stderr]     |                      ----^^^^^^^
Dec 05 06:37:27.123 INFO [stderr]     |                      |
Dec 05 06:37:27.123 INFO [stderr]     |                      help: remove this `mut`
Dec 05 06:37:27.123 INFO [stderr] 
Dec 05 06:37:27.208 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.55s
Dec 05 06:37:27.211 INFO [stderr] su: No module specific data is present
Dec 05 06:37:28.531 INFO running `"docker" "inspect" "1432b48fb13152ab752d17fbc7c5613050c683bc8c77c2df379e852dd447bfcd"`
Dec 05 06:37:28.967 INFO running `"docker" "rm" "-f" "1432b48fb13152ab752d17fbc7c5613050c683bc8c77c2df379e852dd447bfcd"`
Dec 05 06:37:29.231 INFO [stdout] 1432b48fb13152ab752d17fbc7c5613050c683bc8c77c2df379e852dd447bfcd