[INFO] updating cached repository akxcv/b
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/akxcv/b
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/akxcv/b" "work/ex/beta-1.37-6/sources/1.36.0/gh/akxcv/b"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/akxcv/b'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/akxcv/b" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/akxcv/b"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/akxcv/b'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 2366ea43f953dd2bf094fb412e58a040a6a04a67
[INFO] sha for GitHub repo akxcv/b: 2366ea43f953dd2bf094fb412e58a040a6a04a67
[INFO] validating manifest of akxcv/b 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 akxcv/b 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 akxcv/b
[INFO] finished frobbing akxcv/b
[INFO] frobbed toml for akxcv/b written to work/ex/beta-1.37-6/sources/1.36.0/gh/akxcv/b/Cargo.toml
[INFO] started frobbing akxcv/b
[INFO] finished frobbing akxcv/b
[INFO] frobbed toml for akxcv/b written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/akxcv/b/Cargo.toml
[INFO] crate akxcv/b 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 akxcv/b 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-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/akxcv/b:/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] 3ec7efdeab4c046512d9b4eea8b7a0b7baa281c0b4deb777a984eb8c3a7fccdc
[INFO] running `"docker" "start" "-a" "3ec7efdeab4c046512d9b4eea8b7a0b7baa281c0b4deb777a984eb8c3a7fccdc"`
[INFO] [stderr]    Compiling nix v0.11.0
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling dirs v1.0.4
[INFO] [stderr]    Compiling serde_yaml v0.8.8
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling skim v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.80
[INFO] [stderr]    Compiling b v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.82s
[INFO] running `"docker" "inspect" "3ec7efdeab4c046512d9b4eea8b7a0b7baa281c0b4deb777a984eb8c3a7fccdc"`
[INFO] running `"docker" "rm" "-f" "3ec7efdeab4c046512d9b4eea8b7a0b7baa281c0b4deb777a984eb8c3a7fccdc"`
[INFO] [stdout] 3ec7efdeab4c046512d9b4eea8b7a0b7baa281c0b4deb777a984eb8c3a7fccdc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/akxcv/b:/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] 992448b975a30f4a1b2d328bac7596e870c538a34d4300070856cba9f83710cc
[INFO] running `"docker" "start" "-a" "992448b975a30f4a1b2d328bac7596e870c538a34d4300070856cba9f83710cc"`
[INFO] [stderr]    Compiling b v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `"docker" "inspect" "992448b975a30f4a1b2d328bac7596e870c538a34d4300070856cba9f83710cc"`
[INFO] running `"docker" "rm" "-f" "992448b975a30f4a1b2d328bac7596e870c538a34d4300070856cba9f83710cc"`
[INFO] [stdout] 992448b975a30f4a1b2d328bac7596e870c538a34d4300070856cba9f83710cc
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-2/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/akxcv/b:/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] 8e65a624d2183c5079d472123bf87d25897926d86f9f3cf325ae5b5f79e56b87
[INFO] running `"docker" "start" "-a" "8e65a624d2183c5079d472123bf87d25897926d86f9f3cf325ae5b5f79e56b87"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/b-4a1fc229d9ef9653
[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" "8e65a624d2183c5079d472123bf87d25897926d86f9f3cf325ae5b5f79e56b87"`
[INFO] running `"docker" "rm" "-f" "8e65a624d2183c5079d472123bf87d25897926d86f9f3cf325ae5b5f79e56b87"`
[INFO] [stdout] 8e65a624d2183c5079d472123bf87d25897926d86f9f3cf325ae5b5f79e56b87