Dec 07 01:46:09.253 INFO testing rotor-carbon-0.7.0 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 07 01:46:09.253 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt build --frozen" "-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 07 01:46:09.692 INFO [stdout] 91599a5aa31225ad8e662f1341f76204582ee175e5ed168d9be24b9d74e9bd43
Dec 07 01:46:09.694 INFO running `"docker" "start" "-a" "91599a5aa31225ad8e662f1341f76204582ee175e5ed168d9be24b9d74e9bd43"`
Dec 07 01:46:11.633 INFO [stderr] usermod: no changes
Dec 07 01:46:11.784 INFO [stderr]    Compiling rotor-carbon v0.7.0 (/source)
Dec 07 01:46:13.255 INFO [stderr] warning: variable does not need to be mutable
Dec 07 01:46:13.255 INFO [stderr]   --> src/sender.rs:19:17
Dec 07 01:46:13.255 INFO [stderr]    |
Dec 07 01:46:13.255 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 07 01:46:13.255 INFO [stderr]    |                 ----^^^
Dec 07 01:46:13.255 INFO [stderr]    |                 |
Dec 07 01:46:13.255 INFO [stderr]    |                 help: remove this `mut`
Dec 07 01:46:13.255 INFO [stderr]    |
Dec 07 01:46:13.255 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 01:46:13.255 INFO [stderr] 
Dec 07 01:46:13.255 INFO [stderr] warning: variable does not need to be mutable
Dec 07 01:46:13.255 INFO [stderr]   --> src/sender.rs:19:17
Dec 07 01:46:13.255 INFO [stderr]    |
Dec 07 01:46:13.255 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 07 01:46:13.255 INFO [stderr]    |                 ----^^^
Dec 07 01:46:13.255 INFO [stderr]    |                 |
Dec 07 01:46:13.255 INFO [stderr]    |                 help: remove this `mut`
Dec 07 01:46:13.255 INFO [stderr] 
Dec 07 01:46:13.257 INFO [stderr] warning: variable does not need to be mutable
Dec 07 01:46:13.257 INFO [stderr]   --> src/sender.rs:32:17
Dec 07 01:46:13.257 INFO [stderr]    |
Dec 07 01:46:13.257 INFO [stderr] 32 |             let mut buf = trans.output();
Dec 07 01:46:13.257 INFO [stderr]    |                 ----^^^
Dec 07 01:46:13.257 INFO [stderr]    |                 |
Dec 07 01:46:13.257 INFO [stderr]    |                 help: remove this `mut`
Dec 07 01:46:13.257 INFO [stderr] 
Dec 07 01:46:13.326 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
Dec 07 01:46:13.339 INFO [stderr] su: No module specific data is present
Dec 07 01:46:15.084 INFO running `"docker" "inspect" "91599a5aa31225ad8e662f1341f76204582ee175e5ed168d9be24b9d74e9bd43"`
Dec 07 01:46:15.410 INFO running `"docker" "rm" "-f" "91599a5aa31225ad8e662f1341f76204582ee175e5ed168d9be24b9d74e9bd43"`
Dec 07 01:46:15.744 INFO [stdout] 91599a5aa31225ad8e662f1341f76204582ee175e5ed168d9be24b9d74e9bd43
Dec 07 01:46:15.750 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-0/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56514/master#906deae0790bd18681b937fe9a141a3c26cf1855:/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 +906deae0790bd18681b937fe9a141a3c26cf1855-alt test --frozen --no-run" "-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 07 01:46:16.302 INFO [stdout] 95a012a51a51a0eb14fc3ac6251cffeead2106fe7dec685452c445985cbb89ef
Dec 07 01:46:16.304 INFO running `"docker" "start" "-a" "95a012a51a51a0eb14fc3ac6251cffeead2106fe7dec685452c445985cbb89ef"`
Dec 07 01:46:17.984 INFO [stderr] usermod: no changes
Dec 07 01:46:18.184 INFO [stderr]    Compiling rotor-carbon v0.7.0 (/source)
Dec 07 01:46:20.812 INFO [stderr] warning: variable does not need to be mutable
Dec 07 01:46:20.812 INFO [stderr]   --> src/sender.rs:19:17
Dec 07 01:46:20.812 INFO [stderr]    |
Dec 07 01:46:20.812 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 07 01:46:20.812 INFO [stderr]    |                 ----^^^
Dec 07 01:46:20.812 INFO [stderr]    |                 |
Dec 07 01:46:20.812 INFO [stderr]    |                 help: remove this `mut`
Dec 07 01:46:20.812 INFO [stderr]    |
Dec 07 01:46:20.812 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 07 01:46:20.812 INFO [stderr] 
Dec 07 01:46:20.812 INFO [stderr] warning: variable does not need to be mutable
Dec 07 01:46:20.812 INFO [stderr]   --> src/sender.rs:19:17
Dec 07 01:46:20.812 INFO [stderr]    |
Dec 07 01:46:20.812 INFO [stderr] 19 |             let mut buf = trans.output();
Dec 07 01:46:20.812 INFO [stderr]    |                 ----^^^
Dec 07 01:46:20.812 INFO [stderr]    |                 |
Dec 07 01:46:20.812 INFO [stderr]    |                 help: remove this `mut`
Dec 07 01:46:20.812 INFO [stderr] 
Dec 07 01:46:20.812 INFO [stderr] warning: variable does not need to be mutable
Dec 07 01:46:20.812 INFO [stderr]   --> src/sender.rs:32:17
Dec 07 01:46:20.812 INFO [stderr]    |
Dec 07 01:46:20.812 INFO [stderr] 32 |             let mut buf = trans.output();
Dec 07 01:46:20.812 INFO [stderr]    |                 ----^^^
Dec 07 01:46:20.812 INFO [stderr]    |                 |
Dec 07 01:46:20.812 INFO [stderr]    |                 help: remove this `mut`
Dec 07 01:46:20.812 INFO [stderr] 
Dec 07 01:46:24.852 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.85s
Dec 07 01:46:24.858 INFO [stderr] su: No module specific data is present
Dec 07 01:46:26.203 INFO running `"docker" "inspect" "95a012a51a51a0eb14fc3ac6251cffeead2106fe7dec685452c445985cbb89ef"`
Dec 07 01:46:26.414 INFO running `"docker" "rm" "-f" "95a012a51a51a0eb14fc3ac6251cffeead2106fe7dec685452c445985cbb89ef"`
Dec 07 01:46:26.688 INFO [stdout] 95a012a51a51a0eb14fc3ac6251cffeead2106fe7dec685452c445985cbb89ef