Dec 06 14:47:08.381 INFO testing D4nte/rustfmt-3209 against master#906deae0790bd18681b937fe9a141a3c26cf1855 for pr-56514
Dec 06 14:47:08.382 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56514/worker-1/master#906deae0790bd18681b937fe9a141a3c26cf1855:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 06 14:47:08.616 INFO [stdout] 53a0a633b73ef98137b04772ec930bdf648285ecd18bf93d2cf1cf0d6ec4563f
Dec 06 14:47:08.617 INFO running `"docker" "start" "-a" "53a0a633b73ef98137b04772ec930bdf648285ecd18bf93d2cf1cf0d6ec4563f"`
Dec 06 14:47:09.104 INFO [stderr] usermod: no changes
Dec 06 14:47:09.163 INFO [stderr]    Compiling tmp v0.1.0 (/source)
Dec 06 14:47:09.379 INFO [stderr] error[E0412]: cannot find type `Mutex` in this scope
Dec 06 14:47:09.379 INFO [stderr]  --> src/main.rs:7:26
Dec 06 14:47:09.379 INFO [stderr]   |
Dec 06 14:47:09.379 INFO [stderr] 7 |     next_internal_index: Mutex<u32>,
Dec 06 14:47:09.379 INFO [stderr]   |                          ^^^^^ not found in this scope
Dec 06 14:47:09.379 INFO [stderr] help: possible candidate is found in another module, you can import it into scope
Dec 06 14:47:09.379 INFO [stderr]   |
Dec 06 14:47:09.379 INFO [stderr] 2 | use std::sync::Mutex;
Dec 06 14:47:09.379 INFO [stderr]   |
Dec 06 14:47:09.379 INFO [stderr] 
Dec 06 14:47:09.393 INFO [stderr] error: aborting due to previous error
Dec 06 14:47:09.393 INFO [stderr] 
Dec 06 14:47:09.393 INFO [stderr] For more information about this error, try `rustc --explain E0412`.
Dec 06 14:47:09.398 INFO [stderr] error: Could not compile `tmp`.
Dec 06 14:47:09.398 INFO [stderr] 
Dec 06 14:47:09.398 INFO [stderr] To learn more, run the command again with --verbose.
Dec 06 14:47:09.399 INFO [stderr] su: No module specific data is present
Dec 06 14:47:09.688 INFO running `"docker" "inspect" "53a0a633b73ef98137b04772ec930bdf648285ecd18bf93d2cf1cf0d6ec4563f"`
Dec 06 14:47:09.784 INFO running `"docker" "rm" "-f" "53a0a633b73ef98137b04772ec930bdf648285ecd18bf93d2cf1cf0d6ec4563f"`
Dec 06 14:47:09.892 INFO [stdout] 53a0a633b73ef98137b04772ec930bdf648285ecd18bf93d2cf1cf0d6ec4563f