[INFO] cloning repository m4b/cargo-sym
[INFO] running `"git" "clone" "--bare" "git://github.com/m4b/cargo-sym.git" "work/cache/sources/gh/m4b/cargo-sym"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/m4b/cargo-sym'...
[INFO] running `"git" "clone" "work/cache/sources/gh/m4b/cargo-sym" "work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/m4b/cargo-sym"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/m4b/cargo-sym'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/m4b/cargo-sym" "work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/m4b/cargo-sym"`
[INFO] [stderr] Cloning into 'work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/m4b/cargo-sym'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9622ffb7217d565b03bf90cba19df3bc781c8b0f
[INFO] sha for GitHub repo m4b/cargo-sym: 9622ffb7217d565b03bf90cba19df3bc781c8b0f
[INFO] validating manifest of m4b/cargo-sym on toolchain master#c0086b9e8972fef9fd4af24bae20d45021ed06c6
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of m4b/cargo-sym on toolchain try#290ac7b29f41ff9fa5232f9a1116ea71a3501063
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing m4b/cargo-sym
[INFO] finished frobbing m4b/cargo-sym
[INFO] frobbed toml for m4b/cargo-sym written to work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/m4b/cargo-sym/Cargo.toml
[INFO] started frobbing m4b/cargo-sym
[INFO] finished frobbing m4b/cargo-sym
[INFO] frobbed toml for m4b/cargo-sym written to work/ex/pr-58899/sources/try#290ac7b29f41ff9fa5232f9a1116ea71a3501063/gh/m4b/cargo-sym/Cargo.toml
[INFO] crate m4b/cargo-sym has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scroll v0.3.0
[INFO] [stderr]   Downloaded goblin v0.0.8
[INFO] [stderr]   Downloaded walkdir v1.0.1
[INFO] [stderr]   Downloaded capstone-sys v0.2.0
[INFO] [stderr]   Downloaded scroll_derive v0.3.0
[INFO] [stderr]   Downloaded capstone3 v0.1.0
[INFO] [stderr]   Downloaded syn v0.10.7
[INFO] [stderr]   Downloaded cmake v0.1.18
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+290ac7b29f41ff9fa5232f9a1116ea71a3501063-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking m4b/cargo-sym against master#c0086b9e8972fef9fd4af24bae20d45021ed06c6 for pr-58899
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58899/worker-7/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58899/sources/master#c0086b9e8972fef9fd4af24bae20d45021ed06c6/gh/m4b/cargo-sym:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c0086b9e8972fef9fd4af24bae20d45021ed06c6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f442e17f3f2eed6a9ce878fe9334f6bf42a77053ed3bcd07f21c992b9ab2db96
[INFO] running `"docker" "start" "-a" "f442e17f3f2eed6a9ce878fe9334f6bf42a77053ed3bcd07f21c992b9ab2db96"`
[INFO] [stderr]    Compiling quote v0.3.12
[INFO] [stderr]     Checking scroll v0.3.0
[INFO] [stderr]     Checking walkdir v1.0.1
[INFO] [stderr]    Compiling cmake v0.1.18
[INFO] [stderr]    Compiling capstone-sys v0.2.0
[INFO] [stderr]    Compiling syn v0.10.7
[INFO] [stderr]    Compiling scroll_derive v0.3.0
[INFO] [stderr]     Checking goblin v0.0.8
[INFO] [stderr]     Checking capstone3 v0.1.0
[INFO] [stderr]     Checking cargo-sym v0.0.6 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:404:9
[INFO] [stderr]     |
[INFO] [stderr] 404 |     let mut bytes = &mut Cursor::new(&buffer);
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:67:13
[INFO] [stderr]    |
[INFO] [stderr] 67 |         let mut hex_buffer = &mut stack_buffer[..column_width * NCOLUMNS];
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:404:9
[INFO] [stderr]     |
[INFO] [stderr] 404 |     let mut bytes = &mut Cursor::new(&buffer);
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.29s
[INFO] running `"docker" "inspect" "f442e17f3f2eed6a9ce878fe9334f6bf42a77053ed3bcd07f21c992b9ab2db96"`
[INFO] running `"docker" "rm" "-f" "f442e17f3f2eed6a9ce878fe9334f6bf42a77053ed3bcd07f21c992b9ab2db96"`
[INFO] [stdout] f442e17f3f2eed6a9ce878fe9334f6bf42a77053ed3bcd07f21c992b9ab2db96