[INFO] updating cached repository cmusser/boss
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cmusser/boss
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cmusser/boss" "work/ex/beta-1.38-1/sources/1.37.0/gh/cmusser/boss"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cmusser/boss'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cmusser/boss" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmusser/boss"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmusser/boss'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f844a657fece459d216150c0527459a71077e4de
[INFO] sha for GitHub repo cmusser/boss: f844a657fece459d216150c0527459a71077e4de
[INFO] validating manifest of cmusser/boss 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 cmusser/boss 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 cmusser/boss
[INFO] finished frobbing cmusser/boss
[INFO] frobbed toml for cmusser/boss written to work/ex/beta-1.38-1/sources/1.37.0/gh/cmusser/boss/Cargo.toml
[INFO] started frobbing cmusser/boss
[INFO] finished frobbing cmusser/boss
[INFO] frobbed toml for cmusser/boss written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmusser/boss/Cargo.toml
[INFO] crate cmusser/boss 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 cmusser/boss 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/cmusser/boss:/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] 87409a2e5e383bc212536429f1d65e6626ede0252c2046016f7709fceaf8c879
[INFO] running `"docker" "start" "-a" "87409a2e5e383bc212536429f1d65e6626ede0252c2046016f7709fceaf8c879"`
[INFO] [stderr]    Compiling arc-swap v0.3.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.6.1
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling daemonize v0.3.0
[INFO] [stderr]    Compiling serde_yaml v0.8.8
[INFO] [stderr]    Compiling serde_json v1.0.33
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling tokio-io v0.1.10
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling signal-hook v0.1.6
[INFO] [stderr]    Compiling crossbeam-deque v0.6.2
[INFO] [stderr]    Compiling tokio-codec v0.1.1
[INFO] [stderr]    Compiling h2 v0.1.14
[INFO] [stderr]    Compiling tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling tokio-reactor v0.1.7
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio-udp v0.1.3
[INFO] [stderr]    Compiling tokio-uds v0.2.4
[INFO] [stderr]    Compiling tokio-tcp v0.1.2
[INFO] [stderr]    Compiling tokio-signal v0.2.7
[INFO] [stderr]    Compiling tokio-fs v0.1.4
[INFO] [stderr]    Compiling tokio-process v0.2.3
[INFO] [stderr]    Compiling tokio v0.1.13
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling hyper v0.12.18
[INFO] [stderr]    Compiling boss v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.20s
[INFO] running `"docker" "inspect" "87409a2e5e383bc212536429f1d65e6626ede0252c2046016f7709fceaf8c879"`
[INFO] running `"docker" "rm" "-f" "87409a2e5e383bc212536429f1d65e6626ede0252c2046016f7709fceaf8c879"`
[INFO] [stdout] 87409a2e5e383bc212536429f1d65e6626ede0252c2046016f7709fceaf8c879
[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/cmusser/boss:/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] d2b711ea31bbd1940c2ff5d0114abdf033bf72ada8466fc65d032bf2ec1fd16c
[INFO] running `"docker" "start" "-a" "d2b711ea31bbd1940c2ff5d0114abdf033bf72ada8466fc65d032bf2ec1fd16c"`
[INFO] [stderr]    Compiling boss v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `"docker" "inspect" "d2b711ea31bbd1940c2ff5d0114abdf033bf72ada8466fc65d032bf2ec1fd16c"`
[INFO] running `"docker" "rm" "-f" "d2b711ea31bbd1940c2ff5d0114abdf033bf72ada8466fc65d032bf2ec1fd16c"`
[INFO] [stdout] d2b711ea31bbd1940c2ff5d0114abdf033bf72ada8466fc65d032bf2ec1fd16c
[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/cmusser/boss:/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] 154ce057bd679bef7497712508c7b3f97b7eb813844fd7c8088a349919b5ccfc
[INFO] running `"docker" "start" "-a" "154ce057bd679bef7497712508c7b3f97b7eb813844fd7c8088a349919b5ccfc"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/boss-7dc8df552823f98c
[INFO] [stderr]      Running /opt/crater/target/debug/deps/boss-94e6a82d55d5dfec
[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] [stderr]    Doc-tests boss
[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" "154ce057bd679bef7497712508c7b3f97b7eb813844fd7c8088a349919b5ccfc"`
[INFO] running `"docker" "rm" "-f" "154ce057bd679bef7497712508c7b3f97b7eb813844fd7c8088a349919b5ccfc"`
[INFO] [stdout] 154ce057bd679bef7497712508c7b3f97b7eb813844fd7c8088a349919b5ccfc