Sep 10 08:07:48.493 INFO checking tac-0.2.3 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 08:07:48.493 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 08:07:48.493 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-5/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 08:07:48.697 INFO blam! 0e976afca0f31c3ffe39582074f43f21699c826bb4575fb8acd186744c33e55b
Sep 10 08:07:48.699 INFO running `"docker" "start" "-a" "0e976afca0f31c3ffe39582074f43f21699c826bb4575fb8acd186744c33e55b"`
Sep 10 08:07:49.622 INFO kablam! usermod: no changes
Sep 10 08:07:49.701 INFO kablam!     Checking memmap v0.5.2
Sep 10 08:07:49.706 INFO kablam!     Checking uuid v0.4.0
Sep 10 08:07:50.546 INFO kablam!     Checking tac v0.2.3 (file:///source)
Sep 10 08:07:50.949 INFO kablam! warning: variable does not need to be mutable
Sep 10 08:07:50.949 INFO kablam!   --> src/main.rs:64:16
Sep 10 08:07:50.949 INFO kablam!    |
Sep 10 08:07:50.949 INFO kablam! 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Sep 10 08:07:50.949 INFO kablam!    |                ----^^^^^^
Sep 10 08:07:50.949 INFO kablam!    |                |
Sep 10 08:07:50.949 INFO kablam!    |                help: remove this `mut`
Sep 10 08:07:50.950 INFO kablam!    |
Sep 10 08:07:50.950 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 08:07:50.950 INFO kablam! 
Sep 10 08:07:50.999 INFO kablam! warning: variable does not need to be mutable
Sep 10 08:07:50.999 INFO kablam!   --> src/main.rs:64:16
Sep 10 08:07:50.999 INFO kablam!    |
Sep 10 08:07:50.999 INFO kablam! 64 | fn print_bytes(mut stdout: &mut StdoutLock, bytes: &[u8]) {
Sep 10 08:07:50.999 INFO kablam!    |                ----^^^^^^
Sep 10 08:07:50.999 INFO kablam!    |                |
Sep 10 08:07:50.999 INFO kablam!    |                help: remove this `mut`
Sep 10 08:07:50.999 INFO kablam!    |
Sep 10 08:07:50.999 INFO kablam!    = note: #[warn(unused_mut)] on by default
Sep 10 08:07:51.000 INFO kablam! 
Sep 10 08:07:51.042 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
Sep 10 08:07:51.045 INFO kablam! su: No module specific data is present
Sep 10 08:07:51.768 INFO running `"docker" "rm" "-f" "0e976afca0f31c3ffe39582074f43f21699c826bb4575fb8acd186744c33e55b"`
Sep 10 08:07:51.849 INFO blam! 0e976afca0f31c3ffe39582074f43f21699c826bb4575fb8acd186744c33e55b