[INFO] updating cached repository mister-spock/muzzle
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mister-spock/muzzle
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mister-spock/muzzle" "work/ex/beta-1.37-6/sources/1.36.0/gh/mister-spock/muzzle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/mister-spock/muzzle'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mister-spock/muzzle" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mister-spock/muzzle"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mister-spock/muzzle'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36cfb79bf35cf058e71b9958e0f6b048f801e343
[INFO] sha for GitHub repo mister-spock/muzzle: 36cfb79bf35cf058e71b9958e0f6b048f801e343
[INFO] validating manifest of mister-spock/muzzle 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 mister-spock/muzzle 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 mister-spock/muzzle
[INFO] finished frobbing mister-spock/muzzle
[INFO] frobbed toml for mister-spock/muzzle written to work/ex/beta-1.37-6/sources/1.36.0/gh/mister-spock/muzzle/Cargo.toml
[INFO] started frobbing mister-spock/muzzle
[INFO] finished frobbing mister-spock/muzzle
[INFO] frobbed toml for mister-spock/muzzle written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mister-spock/muzzle/Cargo.toml
[INFO] crate mister-spock/muzzle 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 mister-spock/muzzle against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mister-spock/muzzle:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 4d3d81f09d3a271c502d7b8f1708c9782e3376f6237f6d830a2a8271a7dec462
[INFO] running `"docker" "start" "-a" "4d3d81f09d3a271c502d7b8f1708c9782e3376f6237f6d830a2a8271a7dec462"`
[INFO] [stderr]    Compiling muzzle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `"docker" "inspect" "4d3d81f09d3a271c502d7b8f1708c9782e3376f6237f6d830a2a8271a7dec462"`
[INFO] running `"docker" "rm" "-f" "4d3d81f09d3a271c502d7b8f1708c9782e3376f6237f6d830a2a8271a7dec462"`
[INFO] [stdout] 4d3d81f09d3a271c502d7b8f1708c9782e3376f6237f6d830a2a8271a7dec462
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mister-spock/muzzle:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] b4fdea8c9ba0a8e813ec238d0baf7bb5a98bae90ee22bbdcb8e94f4ba5b9294c
[INFO] running `"docker" "start" "-a" "b4fdea8c9ba0a8e813ec238d0baf7bb5a98bae90ee22bbdcb8e94f4ba5b9294c"`
[INFO] [stderr]    Compiling muzzle v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "b4fdea8c9ba0a8e813ec238d0baf7bb5a98bae90ee22bbdcb8e94f4ba5b9294c"`
[INFO] running `"docker" "rm" "-f" "b4fdea8c9ba0a8e813ec238d0baf7bb5a98bae90ee22bbdcb8e94f4ba5b9294c"`
[INFO] [stdout] b4fdea8c9ba0a8e813ec238d0baf7bb5a98bae90ee22bbdcb8e94f4ba5b9294c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/mister-spock/muzzle:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 8b9bb799fba070ee88f5558503524e4d2054cae140675bac4cf8b4759260d8de
[INFO] running `"docker" "start" "-a" "8b9bb799fba070ee88f5558503524e4d2054cae140675bac4cf8b4759260d8de"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/muzzle-dbbb0e48e9c1f163
[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] [stderr]      Running /opt/crater/target/debug/deps/muzzle-30bbd3f1bed254a2
[INFO] [stderr]    Doc-tests muzzle
[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] [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" "8b9bb799fba070ee88f5558503524e4d2054cae140675bac4cf8b4759260d8de"`
[INFO] running `"docker" "rm" "-f" "8b9bb799fba070ee88f5558503524e4d2054cae140675bac4cf8b4759260d8de"`
[INFO] [stdout] 8b9bb799fba070ee88f5558503524e4d2054cae140675bac4cf8b4759260d8de