[INFO] updating cached repository LeopoldArkham/brainfuck
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/LeopoldArkham/brainfuck
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/LeopoldArkham/brainfuck" "work/ex/beta-1.38-1/sources/1.37.0/gh/LeopoldArkham/brainfuck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/LeopoldArkham/brainfuck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LeopoldArkham/brainfuck" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LeopoldArkham/brainfuck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LeopoldArkham/brainfuck'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a88dcc5530736f20779f823b8d84686cda4cb617
[INFO] sha for GitHub repo LeopoldArkham/brainfuck: a88dcc5530736f20779f823b8d84686cda4cb617
[INFO] validating manifest of LeopoldArkham/brainfuck on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LeopoldArkham/brainfuck on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing LeopoldArkham/brainfuck
[INFO] finished frobbing LeopoldArkham/brainfuck
[INFO] frobbed toml for LeopoldArkham/brainfuck written to work/ex/beta-1.38-1/sources/1.37.0/gh/LeopoldArkham/brainfuck/Cargo.toml
[INFO] started frobbing LeopoldArkham/brainfuck
[INFO] finished frobbing LeopoldArkham/brainfuck
[INFO] frobbed toml for LeopoldArkham/brainfuck written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/LeopoldArkham/brainfuck/Cargo.toml
[INFO] crate LeopoldArkham/brainfuck already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing LeopoldArkham/brainfuck against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LeopoldArkham/brainfuck:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] c6a3390031fa875f8357e14bacfe5e35ffd0eb8317537ca2afa12f9977a9c8b6
[INFO] running `"docker" "start" "-a" "c6a3390031fa875f8357e14bacfe5e35ffd0eb8317537ca2afa12f9977a9c8b6"`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `is_start`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn is_start(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "c6a3390031fa875f8357e14bacfe5e35ffd0eb8317537ca2afa12f9977a9c8b6"`
[INFO] running `"docker" "rm" "-f" "c6a3390031fa875f8357e14bacfe5e35ffd0eb8317537ca2afa12f9977a9c8b6"`
[INFO] [stdout] c6a3390031fa875f8357e14bacfe5e35ffd0eb8317537ca2afa12f9977a9c8b6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LeopoldArkham/brainfuck:/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=warn" "-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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] b3657b9f90ffab9dfe6505521c50ff7e498ca08d695608f3d82b9df7bae57db4
[INFO] running `"docker" "start" "-a" "b3657b9f90ffab9dfe6505521c50ff7e498ca08d695608f3d82b9df7bae57db4"`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: method is never used: `is_start`
[INFO] [stderr]   --> src/main.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     fn is_start(&self) -> bool {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "b3657b9f90ffab9dfe6505521c50ff7e498ca08d695608f3d82b9df7bae57db4"`
[INFO] running `"docker" "rm" "-f" "b3657b9f90ffab9dfe6505521c50ff7e498ca08d695608f3d82b9df7bae57db4"`
[INFO] [stdout] b3657b9f90ffab9dfe6505521c50ff7e498ca08d695608f3d82b9df7bae57db4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/LeopoldArkham/brainfuck:/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=warn" "-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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] aac81da55d3decf7fa0783bace3c42d18bbf2b7f71636b42d55e1ce717f911b6
[INFO] running `"docker" "start" "-a" "aac81da55d3decf7fa0783bace3c42d18bbf2b7f71636b42d55e1ce717f911b6"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brainfuck-4a962a5745b5d3c4
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "aac81da55d3decf7fa0783bace3c42d18bbf2b7f71636b42d55e1ce717f911b6"`
[INFO] running `"docker" "rm" "-f" "aac81da55d3decf7fa0783bace3c42d18bbf2b7f71636b42d55e1ce717f911b6"`
[INFO] [stdout] aac81da55d3decf7fa0783bace3c42d18bbf2b7f71636b42d55e1ce717f911b6