[INFO] updating cached repository calesce/yamb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/calesce/yamb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/calesce/yamb" "work/ex/beta-1.37-6/sources/1.36.0/gh/calesce/yamb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/calesce/yamb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/calesce/yamb" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calesce/yamb"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calesce/yamb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6ba7d8652bf21bbc6e506a244290d43cd81b85fa
[INFO] sha for GitHub repo calesce/yamb: 6ba7d8652bf21bbc6e506a244290d43cd81b85fa
[INFO] validating manifest of calesce/yamb 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 calesce/yamb 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 calesce/yamb
[INFO] finished frobbing calesce/yamb
[INFO] frobbed toml for calesce/yamb written to work/ex/beta-1.37-6/sources/1.36.0/gh/calesce/yamb/Cargo.toml
[INFO] started frobbing calesce/yamb
[INFO] finished frobbing calesce/yamb
[INFO] frobbed toml for calesce/yamb written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/calesce/yamb/Cargo.toml
[INFO] crate calesce/yamb 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 calesce/yamb 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-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/calesce/yamb:/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] 225f8e99f15d9d32263e9be35d80b2d187593df696a7077e33bd6ce71a2a9b5d
[INFO] running `"docker" "start" "-a" "225f8e99f15d9d32263e9be35d80b2d187593df696a7077e33bd6ce71a2a9b5d"`
[INFO] [stderr]    Compiling yamb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Ok((buffer))
[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 0.63s
[INFO] running `"docker" "inspect" "225f8e99f15d9d32263e9be35d80b2d187593df696a7077e33bd6ce71a2a9b5d"`
[INFO] running `"docker" "rm" "-f" "225f8e99f15d9d32263e9be35d80b2d187593df696a7077e33bd6ce71a2a9b5d"`
[INFO] [stdout] 225f8e99f15d9d32263e9be35d80b2d187593df696a7077e33bd6ce71a2a9b5d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/calesce/yamb:/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] b127e8346cc83e052e0512becacf31e73fd268d8ab5cb91ec15e4987d7a09b2c
[INFO] running `"docker" "start" "-a" "b127e8346cc83e052e0512becacf31e73fd268d8ab5cb91ec15e4987d7a09b2c"`
[INFO] [stderr]    Compiling yamb v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/main.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     Ok((buffer))
[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 0.67s
[INFO] running `"docker" "inspect" "b127e8346cc83e052e0512becacf31e73fd268d8ab5cb91ec15e4987d7a09b2c"`
[INFO] running `"docker" "rm" "-f" "b127e8346cc83e052e0512becacf31e73fd268d8ab5cb91ec15e4987d7a09b2c"`
[INFO] [stdout] b127e8346cc83e052e0512becacf31e73fd268d8ab5cb91ec15e4987d7a09b2c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/calesce/yamb:/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] 286a31133468819d70f108b8d4ec891d5d3a8440c258eb3639137d4c66f87b61
[INFO] running `"docker" "start" "-a" "286a31133468819d70f108b8d4ec891d5d3a8440c258eb3639137d4c66f87b61"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/yamb-35db0838b9ed2c99
[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" "286a31133468819d70f108b8d4ec891d5d3a8440c258eb3639137d4c66f87b61"`
[INFO] running `"docker" "rm" "-f" "286a31133468819d70f108b8d4ec891d5d3a8440c258eb3639137d4c66f87b61"`
[INFO] [stdout] 286a31133468819d70f108b8d4ec891d5d3a8440c258eb3639137d4c66f87b61