[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 beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 1c13948d904cd2f9712f0289b8ad65f63921e93a565c61f188b11de8bf0d7960
[INFO] running `"docker" "start" "-a" "1c13948d904cd2f9712f0289b8ad65f63921e93a565c61f188b11de8bf0d7960"`
[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 1.36s
[INFO] running `"docker" "inspect" "1c13948d904cd2f9712f0289b8ad65f63921e93a565c61f188b11de8bf0d7960"`
[INFO] running `"docker" "rm" "-f" "1c13948d904cd2f9712f0289b8ad65f63921e93a565c61f188b11de8bf0d7960"`
[INFO] [stdout] 1c13948d904cd2f9712f0289b8ad65f63921e93a565c61f188b11de8bf0d7960
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5a7a01b5d1f0242000aae7a4931ae96a9f09e5c3f6a607a94b9cd88a2285567c
[INFO] running `"docker" "start" "-a" "5a7a01b5d1f0242000aae7a4931ae96a9f09e5c3f6a607a94b9cd88a2285567c"`
[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 0.60s
[INFO] running `"docker" "inspect" "5a7a01b5d1f0242000aae7a4931ae96a9f09e5c3f6a607a94b9cd88a2285567c"`
[INFO] running `"docker" "rm" "-f" "5a7a01b5d1f0242000aae7a4931ae96a9f09e5c3f6a607a94b9cd88a2285567c"`
[INFO] [stdout] 5a7a01b5d1f0242000aae7a4931ae96a9f09e5c3f6a607a94b9cd88a2285567c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] d9a88ddbc55080e48c00e00e84cc32db88ba3cfb9e815ffd1c61b52901ab29a5
[INFO] running `"docker" "start" "-a" "d9a88ddbc55080e48c00e00e84cc32db88ba3cfb9e815ffd1c61b52901ab29a5"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brainfuck-306bf5b5f081362e
[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" "d9a88ddbc55080e48c00e00e84cc32db88ba3cfb9e815ffd1c61b52901ab29a5"`
[INFO] running `"docker" "rm" "-f" "d9a88ddbc55080e48c00e00e84cc32db88ba3cfb9e815ffd1c61b52901ab29a5"`
[INFO] [stdout] d9a88ddbc55080e48c00e00e84cc32db88ba3cfb9e815ffd1c61b52901ab29a5