Dec 01 00:58:03.295 INFO checking cargo-sym-0.0.6 against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Dec 01 00:58:03.296 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-6/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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 01 00:58:03.808 INFO [stdout] 6c9600da2af6bd42d8c327842f05d1b66085479f0f662316d82f3a0b2d6d3bc7
Dec 01 00:58:03.816 INFO running `"docker" "start" "-a" "6c9600da2af6bd42d8c327842f05d1b66085479f0f662316d82f3a0b2d6d3bc7"`
Dec 01 00:58:05.192 INFO [stderr] usermod: no changes
Dec 01 00:58:05.312 INFO [stderr]     Checking scroll v0.3.0
Dec 01 00:58:05.312 INFO [stderr]    Compiling capstone-sys v0.2.0
Dec 01 00:58:05.312 INFO [stderr]    Compiling scroll_derive v0.3.0
Dec 01 00:58:36.236 INFO [stderr]     Checking goblin v0.0.8
Dec 01 00:58:41.526 INFO [stderr]     Checking capstone3 v0.1.0
Dec 01 00:58:43.484 INFO [stderr]     Checking cargo-sym v0.0.6 (/source)
Dec 01 00:58:46.648 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:58:46.648 INFO [stderr]   --> src/main.rs:67:13
Dec 01 00:58:46.648 INFO [stderr]    |
Dec 01 00:58:46.648 INFO [stderr] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
Dec 01 00:58:46.648 INFO [stderr]    |             ----^^^^^^^^^^
Dec 01 00:58:46.648 INFO [stderr]    |             |
Dec 01 00:58:46.648 INFO [stderr]    |             help: remove this `mut`
Dec 01 00:58:46.648 INFO [stderr]    |
Dec 01 00:58:46.648 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 00:58:46.648 INFO [stderr] 
Dec 01 00:58:46.724 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:58:46.724 INFO [stderr]    --> src/main.rs:404:9
Dec 01 00:58:46.724 INFO [stderr]     |
Dec 01 00:58:46.724 INFO [stderr] 404 |     let mut bytes = &mut Cursor::new(&buffer);
Dec 01 00:58:46.724 INFO [stderr]     |         ----^^^^^
Dec 01 00:58:46.724 INFO [stderr]     |         |
Dec 01 00:58:46.724 INFO [stderr]     |         help: remove this `mut`
Dec 01 00:58:46.724 INFO [stderr] 
Dec 01 00:58:46.944 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:58:46.944 INFO [stderr]   --> src/main.rs:67:13
Dec 01 00:58:46.944 INFO [stderr]    |
Dec 01 00:58:46.944 INFO [stderr] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
Dec 01 00:58:46.944 INFO [stderr]    |             ----^^^^^^^^^^
Dec 01 00:58:46.944 INFO [stderr]    |             |
Dec 01 00:58:46.944 INFO [stderr]    |             help: remove this `mut`
Dec 01 00:58:46.944 INFO [stderr]    |
Dec 01 00:58:46.944 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 01 00:58:46.944 INFO [stderr] 
Dec 01 00:58:46.980 INFO [stderr] warning: variable does not need to be mutable
Dec 01 00:58:46.980 INFO [stderr]    --> src/main.rs:404:9
Dec 01 00:58:46.980 INFO [stderr]     |
Dec 01 00:58:46.980 INFO [stderr] 404 |     let mut bytes = &mut Cursor::new(&buffer);
Dec 01 00:58:46.980 INFO [stderr]     |         ----^^^^^
Dec 01 00:58:46.980 INFO [stderr]     |         |
Dec 01 00:58:46.980 INFO [stderr]     |         help: remove this `mut`
Dec 01 00:58:46.980 INFO [stderr] 
Dec 01 00:58:47.048 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 41.83s
Dec 01 00:58:47.052 INFO [stderr] su: No module specific data is present
Dec 01 00:58:48.172 INFO running `"docker" "inspect" "6c9600da2af6bd42d8c327842f05d1b66085479f0f662316d82f3a0b2d6d3bc7"`
Dec 01 00:58:48.466 INFO running `"docker" "rm" "-f" "6c9600da2af6bd42d8c327842f05d1b66085479f0f662316d82f3a0b2d6d3bc7"`
Dec 01 00:58:48.683 INFO [stdout] 6c9600da2af6bd42d8c327842f05d1b66085479f0f662316d82f3a0b2d6d3bc7