[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-1.37-6/sources/1.36.0/gh/LeopoldArkham/brainfuck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/LeopoldArkham/brainfuck'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/LeopoldArkham/brainfuck" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/LeopoldArkham/brainfuck"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of LeopoldArkham/brainfuck on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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-1.37-6/sources/1.36.0/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-1.37-6/sources/beta-2019-07-23/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" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing LeopoldArkham/brainfuck against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] eab318be3f63cbf61decc143847b25955284b4e314b1e19b962b3a555b8767e5
[INFO] running `"docker" "start" "-a" "eab318be3f63cbf61decc143847b25955284b4e314b1e19b962b3a555b8767e5"`
[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 1.23s
[INFO] running `"docker" "inspect" "eab318be3f63cbf61decc143847b25955284b4e314b1e19b962b3a555b8767e5"`
[INFO] running `"docker" "rm" "-f" "eab318be3f63cbf61decc143847b25955284b4e314b1e19b962b3a555b8767e5"`
[INFO] [stdout] eab318be3f63cbf61decc143847b25955284b4e314b1e19b962b3a555b8767e5
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 4432c68199aa838bf88d64c770d5afc49a5496a8c0b6b7c31d457237e86a0e16
[INFO] running `"docker" "start" "-a" "4432c68199aa838bf88d64c770d5afc49a5496a8c0b6b7c31d457237e86a0e16"`
[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 1.00s
[INFO] running `"docker" "inspect" "4432c68199aa838bf88d64c770d5afc49a5496a8c0b6b7c31d457237e86a0e16"`
[INFO] running `"docker" "rm" "-f" "4432c68199aa838bf88d64c770d5afc49a5496a8c0b6b7c31d457237e86a0e16"`
[INFO] [stdout] 4432c68199aa838bf88d64c770d5afc49a5496a8c0b6b7c31d457237e86a0e16
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 7ba6ee12b77e0b4feb2f8e37cc7543f0f4836ac9d49e30daf4ccd27b60e57ca2
[INFO] running `"docker" "start" "-a" "7ba6ee12b77e0b4feb2f8e37cc7543f0f4836ac9d49e30daf4ccd27b60e57ca2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/brainfuck-ccca1e2b9da87d8f
[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" "7ba6ee12b77e0b4feb2f8e37cc7543f0f4836ac9d49e30daf4ccd27b60e57ca2"`
[INFO] running `"docker" "rm" "-f" "7ba6ee12b77e0b4feb2f8e37cc7543f0f4836ac9d49e30daf4ccd27b60e57ca2"`
[INFO] [stdout] 7ba6ee12b77e0b4feb2f8e37cc7543f0f4836ac9d49e30daf4ccd27b60e57ca2