Dec 05 15:41:36.241 INFO checking cargo-sym-0.0.6 against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 15:41:36.241 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 15:41:36.675 INFO [stdout] 7d4fa1c614b597285236121e6ea4d53ef5b73d43985769fae8974b3f19c7d7d7
Dec 05 15:41:36.683 INFO running `"docker" "start" "-a" "7d4fa1c614b597285236121e6ea4d53ef5b73d43985769fae8974b3f19c7d7d7"`
Dec 05 15:41:38.026 INFO [stderr] usermod: no changes
Dec 05 15:41:38.143 INFO [stderr]    Compiling capstone-sys v0.2.0
Dec 05 15:41:38.143 INFO [stderr]    Compiling scroll_derive v0.3.0
Dec 05 15:41:40.227 INFO [stderr]     Checking goblin v0.0.8
Dec 05 15:42:12.339 INFO [stderr]     Checking capstone3 v0.1.0
Dec 05 15:42:13.103 INFO [stderr]     Checking cargo-sym v0.0.6 (/source)
Dec 05 15:42:15.812 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:42:15.812 INFO [stderr]   --> src/main.rs:67:13
Dec 05 15:42:15.812 INFO [stderr]    |
Dec 05 15:42:15.812 INFO [stderr] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
Dec 05 15:42:15.812 INFO [stderr]    |             ----^^^^^^^^^^
Dec 05 15:42:15.812 INFO [stderr]    |             |
Dec 05 15:42:15.812 INFO [stderr]    |             help: remove this `mut`
Dec 05 15:42:15.812 INFO [stderr]    |
Dec 05 15:42:15.812 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 15:42:15.812 INFO [stderr] 
Dec 05 15:42:15.855 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:42:15.855 INFO [stderr]    --> src/main.rs:404:9
Dec 05 15:42:15.855 INFO [stderr]     |
Dec 05 15:42:15.855 INFO [stderr] 404 |     let mut bytes = &mut Cursor::new(&buffer);
Dec 05 15:42:15.855 INFO [stderr]     |         ----^^^^^
Dec 05 15:42:15.855 INFO [stderr]     |         |
Dec 05 15:42:15.855 INFO [stderr]     |         help: remove this `mut`
Dec 05 15:42:15.855 INFO [stderr] 
Dec 05 15:42:16.039 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:42:16.039 INFO [stderr]   --> src/main.rs:67:13
Dec 05 15:42:16.039 INFO [stderr]    |
Dec 05 15:42:16.039 INFO [stderr] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
Dec 05 15:42:16.039 INFO [stderr]    |             ----^^^^^^^^^^
Dec 05 15:42:16.039 INFO [stderr]    |             |
Dec 05 15:42:16.039 INFO [stderr]    |             help: remove this `mut`
Dec 05 15:42:16.039 INFO [stderr]    |
Dec 05 15:42:16.039 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 05 15:42:16.039 INFO [stderr] 
Dec 05 15:42:16.071 INFO [stderr] warning: variable does not need to be mutable
Dec 05 15:42:16.071 INFO [stderr]    --> src/main.rs:404:9
Dec 05 15:42:16.071 INFO [stderr]     |
Dec 05 15:42:16.071 INFO [stderr] 404 |     let mut bytes = &mut Cursor::new(&buffer);
Dec 05 15:42:16.071 INFO [stderr]     |         ----^^^^^
Dec 05 15:42:16.071 INFO [stderr]     |         |
Dec 05 15:42:16.071 INFO [stderr]     |         help: remove this `mut`
Dec 05 15:42:16.071 INFO [stderr] 
Dec 05 15:42:16.140 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.10s
Dec 05 15:42:16.145 INFO [stderr] su: No module specific data is present
Dec 05 15:42:16.887 INFO running `"docker" "inspect" "7d4fa1c614b597285236121e6ea4d53ef5b73d43985769fae8974b3f19c7d7d7"`
Dec 05 15:42:17.145 INFO running `"docker" "rm" "-f" "7d4fa1c614b597285236121e6ea4d53ef5b73d43985769fae8974b3f19c7d7d7"`
Dec 05 15:42:17.443 INFO [stdout] 7d4fa1c614b597285236121e6ea4d53ef5b73d43985769fae8974b3f19c7d7d7