[INFO] updating cached repository tekerson/silent_killer.rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tekerson/silent_killer.rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tekerson/silent_killer.rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/tekerson/silent_killer.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/tekerson/silent_killer.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tekerson/silent_killer.rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tekerson/silent_killer.rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tekerson/silent_killer.rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] bed00455e4c17bb6559489781bce2a96a4f18f05
[INFO] sha for GitHub repo tekerson/silent_killer.rs: bed00455e4c17bb6559489781bce2a96a4f18f05
[INFO] validating manifest of tekerson/silent_killer.rs 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 tekerson/silent_killer.rs 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 tekerson/silent_killer.rs
[INFO] finished frobbing tekerson/silent_killer.rs
[INFO] frobbed toml for tekerson/silent_killer.rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/tekerson/silent_killer.rs/Cargo.toml
[INFO] started frobbing tekerson/silent_killer.rs
[INFO] finished frobbing tekerson/silent_killer.rs
[INFO] frobbed toml for tekerson/silent_killer.rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tekerson/silent_killer.rs/Cargo.toml
[INFO] crate tekerson/silent_killer.rs 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing tekerson/silent_killer.rs against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tekerson/silent_killer.rs:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 9aafa68103856c177f525f2e151a82d2d20fc6c0d0ae7e9f17d1e5d55c4670c4
[INFO] running `"docker" "start" "-a" "9aafa68103856c177f525f2e151a82d2d20fc6c0d0ae7e9f17d1e5d55c4670c4"`
[INFO] [stderr]    Compiling silent_killer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.37s
[INFO] running `"docker" "inspect" "9aafa68103856c177f525f2e151a82d2d20fc6c0d0ae7e9f17d1e5d55c4670c4"`
[INFO] running `"docker" "rm" "-f" "9aafa68103856c177f525f2e151a82d2d20fc6c0d0ae7e9f17d1e5d55c4670c4"`
[INFO] [stdout] 9aafa68103856c177f525f2e151a82d2d20fc6c0d0ae7e9f17d1e5d55c4670c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tekerson/silent_killer.rs:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3b90d2a6f7d8c65f0eceb3407718b24ecba7174993d38b806a1058bc9711c07c
[INFO] running `"docker" "start" "-a" "3b90d2a6f7d8c65f0eceb3407718b24ecba7174993d38b806a1058bc9711c07c"`
[INFO] [stderr]    Compiling silent_killer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `"docker" "inspect" "3b90d2a6f7d8c65f0eceb3407718b24ecba7174993d38b806a1058bc9711c07c"`
[INFO] running `"docker" "rm" "-f" "3b90d2a6f7d8c65f0eceb3407718b24ecba7174993d38b806a1058bc9711c07c"`
[INFO] [stdout] 3b90d2a6f7d8c65f0eceb3407718b24ecba7174993d38b806a1058bc9711c07c
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/tekerson/silent_killer.rs:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 34fc66b2d1ea1f54874c334844c324194af171d78aa797a54287894d36d9626c
[INFO] running `"docker" "start" "-a" "34fc66b2d1ea1f54874c334844c324194af171d78aa797a54287894d36d9626c"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/silent_killer-105204619e7f98ab
[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" "34fc66b2d1ea1f54874c334844c324194af171d78aa797a54287894d36d9626c"`
[INFO] running `"docker" "rm" "-f" "34fc66b2d1ea1f54874c334844c324194af171d78aa797a54287894d36d9626c"`
[INFO] [stdout] 34fc66b2d1ea1f54874c334844c324194af171d78aa797a54287894d36d9626c