[INFO] updating cached repository atsiporu/braces
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/atsiporu/braces
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/atsiporu/braces" "work/ex/beta-1.38-1/sources/1.37.0/gh/atsiporu/braces"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/atsiporu/braces'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/atsiporu/braces" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/atsiporu/braces"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/atsiporu/braces'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 266de26eb11a95383e4d4482c87ae2c736c6b586
[INFO] sha for GitHub repo atsiporu/braces: 266de26eb11a95383e4d4482c87ae2c736c6b586
[INFO] validating manifest of atsiporu/braces 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 atsiporu/braces 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 atsiporu/braces
[INFO] finished frobbing atsiporu/braces
[INFO] frobbed toml for atsiporu/braces written to work/ex/beta-1.38-1/sources/1.37.0/gh/atsiporu/braces/Cargo.toml
[INFO] started frobbing atsiporu/braces
[INFO] finished frobbing atsiporu/braces
[INFO] frobbed toml for atsiporu/braces written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/atsiporu/braces/Cargo.toml
[INFO] crate atsiporu/braces 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 atsiporu/braces 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/atsiporu/braces:/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] def51818a0e34dfb1030e27f80c195b2a1bb2147d7c21c0657a2891177cca0c1
[INFO] running `"docker" "start" "-a" "def51818a0e34dfb1030e27f80c195b2a1bb2147d7c21c0657a2891177cca0c1"`
[INFO] [stderr]    Compiling braces v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:53:50
[INFO] [stderr]    |
[INFO] [stderr] 53 |             (State::Pair(oi, idx), std::cmp::max((idx-oi+1), largest))
[INFO] [stderr]    |                                                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `"docker" "inspect" "def51818a0e34dfb1030e27f80c195b2a1bb2147d7c21c0657a2891177cca0c1"`
[INFO] running `"docker" "rm" "-f" "def51818a0e34dfb1030e27f80c195b2a1bb2147d7c21c0657a2891177cca0c1"`
[INFO] [stdout] def51818a0e34dfb1030e27f80c195b2a1bb2147d7c21c0657a2891177cca0c1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/atsiporu/braces:/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] 5b2be9a45213d784b7e48684b526f61ce5a01a45ac59fe099f2eadf7ef58789b
[INFO] running `"docker" "start" "-a" "5b2be9a45213d784b7e48684b526f61ce5a01a45ac59fe099f2eadf7ef58789b"`
[INFO] [stderr]    Compiling braces v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:53:50
[INFO] [stderr]    |
[INFO] [stderr] 53 |             (State::Pair(oi, idx), std::cmp::max((idx-oi+1), largest))
[INFO] [stderr]    |                                                  ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `"docker" "inspect" "5b2be9a45213d784b7e48684b526f61ce5a01a45ac59fe099f2eadf7ef58789b"`
[INFO] running `"docker" "rm" "-f" "5b2be9a45213d784b7e48684b526f61ce5a01a45ac59fe099f2eadf7ef58789b"`
[INFO] [stdout] 5b2be9a45213d784b7e48684b526f61ce5a01a45ac59fe099f2eadf7ef58789b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/atsiporu/braces:/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] efb7ef03a1e18fabac9502182895d85c992e5c60b6c3694535111da67ca37bfe
[INFO] running `"docker" "start" "-a" "efb7ef03a1e18fabac9502182895d85c992e5c60b6c3694535111da67ca37bfe"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/braces-0f409311bc8f5028
[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" "efb7ef03a1e18fabac9502182895d85c992e5c60b6c3694535111da67ca37bfe"`
[INFO] running `"docker" "rm" "-f" "efb7ef03a1e18fabac9502182895d85c992e5c60b6c3694535111da67ca37bfe"`
[INFO] [stdout] efb7ef03a1e18fabac9502182895d85c992e5c60b6c3694535111da67ca37bfe