Dec 02 14:46:54.047 INFO testing tac-0.2.3 against 1.30.1 for beta-1.31-5
Dec 02 14:46:54.047 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 14:46:54.318 INFO [stdout] da46e91bcb0e69f86e0ef552106f79c884045b829b7baef2e47c5da651609b6f
Dec 02 14:46:54.320 INFO running `"docker" "start" "-a" "da46e91bcb0e69f86e0ef552106f79c884045b829b7baef2e47c5da651609b6f"`
Dec 02 14:46:54.744 INFO [stderr] usermod: no changes
Dec 02 14:46:54.791 INFO [stderr]    Compiling uuid v0.4.0
Dec 02 14:46:55.829 INFO [stderr]    Compiling tac v0.2.3 (/source)
Dec 02 14:46:56.619 INFO [stderr] warning: variable does not need to be mutable
Dec 02 14:46:56.619 INFO [stderr]   --> src/main.rs:64:16
Dec 02 14:46:56.619 INFO [stderr]    |
Dec 02 14:46:56.619 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Dec 02 14:46:56.619 INFO [stderr]    |                ----^^^^^^
Dec 02 14:46:56.619 INFO [stderr]    |                |
Dec 02 14:46:56.619 INFO [stderr]    |                help: remove this `mut`
Dec 02 14:46:56.619 INFO [stderr]    |
Dec 02 14:46:56.619 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 14:46:56.619 INFO [stderr] 
Dec 02 14:46:57.179 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.42s
Dec 02 14:46:57.183 INFO [stderr] su: No module specific data is present
Dec 02 14:46:57.677 INFO running `"docker" "inspect" "da46e91bcb0e69f86e0ef552106f79c884045b829b7baef2e47c5da651609b6f"`
Dec 02 14:46:57.875 INFO running `"docker" "rm" "-f" "da46e91bcb0e69f86e0ef552106f79c884045b829b7baef2e47c5da651609b6f"`
Dec 02 14:46:57.977 INFO [stdout] da46e91bcb0e69f86e0ef552106f79c884045b829b7baef2e47c5da651609b6f
Dec 02 14:46:57.981 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 14:46:58.291 INFO [stdout] 8c3fad748a4fff0f57c5206cea0192772c9dfe73c7a00a774595b9f1e9c3fcf2
Dec 02 14:46:58.294 INFO running `"docker" "start" "-a" "8c3fad748a4fff0f57c5206cea0192772c9dfe73c7a00a774595b9f1e9c3fcf2"`
Dec 02 14:46:59.275 INFO [stderr] usermod: no changes
Dec 02 14:46:59.343 INFO [stderr]    Compiling tac v0.2.3 (/source)
Dec 02 14:47:00.635 INFO [stderr] warning: variable does not need to be mutable
Dec 02 14:47:00.635 INFO [stderr]   --> src/main.rs:64:16
Dec 02 14:47:00.635 INFO [stderr]    |
Dec 02 14:47:00.635 INFO [stderr] 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Dec 02 14:47:00.635 INFO [stderr]    |                ----^^^^^^
Dec 02 14:47:00.635 INFO [stderr]    |                |
Dec 02 14:47:00.635 INFO [stderr]    |                help: remove this `mut`
Dec 02 14:47:00.635 INFO [stderr]    |
Dec 02 14:47:00.635 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 02 14:47:00.635 INFO [stderr] 
Dec 02 14:47:01.191 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.87s
Dec 02 14:47:01.191 INFO [stderr] su: No module specific data is present
Dec 02 14:47:01.771 INFO running `"docker" "inspect" "8c3fad748a4fff0f57c5206cea0192772c9dfe73c7a00a774595b9f1e9c3fcf2"`
Dec 02 14:47:02.017 INFO running `"docker" "rm" "-f" "8c3fad748a4fff0f57c5206cea0192772c9dfe73c7a00a774595b9f1e9c3fcf2"`
Dec 02 14:47:02.255 INFO [stdout] 8c3fad748a4fff0f57c5206cea0192772c9dfe73c7a00a774595b9f1e9c3fcf2
Dec 02 14:47:02.259 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-3/1.30.1:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/beta-1.31-5/1.30.1:/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 +1.30.1 test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 14:47:02.655 INFO [stdout] faf6427e0f86c07bbb2efcb3ff7585f2089b5c5a06339ab5d5383ebec2a14678
Dec 02 14:47:02.661 INFO running `"docker" "start" "-a" "faf6427e0f86c07bbb2efcb3ff7585f2089b5c5a06339ab5d5383ebec2a14678"`
Dec 02 14:47:03.058 INFO [stderr] usermod: no changes
Dec 02 14:47:03.096 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
Dec 02 14:47:03.096 INFO [stderr]      Running /target/debug/deps/tac-cbf108b2c11887ce
Dec 02 14:47:03.098 INFO [stdout] 
Dec 02 14:47:03.098 INFO [stdout] running 0 tests
Dec 02 14:47:03.098 INFO [stdout] 
Dec 02 14:47:03.098 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 02 14:47:03.098 INFO [stdout] 
Dec 02 14:47:03.100 INFO [stderr] su: No module specific data is present
Dec 02 14:47:03.380 INFO running `"docker" "inspect" "faf6427e0f86c07bbb2efcb3ff7585f2089b5c5a06339ab5d5383ebec2a14678"`
Dec 02 14:47:03.550 INFO running `"docker" "rm" "-f" "faf6427e0f86c07bbb2efcb3ff7585f2089b5c5a06339ab5d5383ebec2a14678"`
Dec 02 14:47:03.737 INFO [stdout] faf6427e0f86c07bbb2efcb3ff7585f2089b5c5a06339ab5d5383ebec2a14678
