[INFO] crate semaphore 0.4.0 is already in cache
[INFO] extracting crate semaphore 0.4.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/semaphore/0.4.0
[INFO] extracting crate semaphore 0.4.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semaphore/0.4.0
[INFO] validating manifest of semaphore-0.4.0 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 semaphore-0.4.0 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 semaphore-0.4.0
[INFO] finished frobbing semaphore-0.4.0
[INFO] frobbed toml for semaphore-0.4.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/semaphore/0.4.0/Cargo.toml
[INFO] started frobbing semaphore-0.4.0
[INFO] finished frobbing semaphore-0.4.0
[INFO] frobbed toml for semaphore-0.4.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/semaphore/0.4.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 semaphore-0.4.0 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/reg/semaphore/0.4.0:/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] 8bb9ed6e9825b70f6cab0de59f4d771c3ce420ddf82d35f696cb21604ea96a21
[INFO] running `"docker" "start" "-a" "8bb9ed6e9825b70f6cab0de59f4d771c3ce420ddf82d35f696cb21604ea96a21"`
[INFO] [stderr]    Compiling parking_lot v0.4.8
[INFO] [stderr]    Compiling semaphore v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.71s
[INFO] running `"docker" "inspect" "8bb9ed6e9825b70f6cab0de59f4d771c3ce420ddf82d35f696cb21604ea96a21"`
[INFO] running `"docker" "rm" "-f" "8bb9ed6e9825b70f6cab0de59f4d771c3ce420ddf82d35f696cb21604ea96a21"`
[INFO] [stdout] 8bb9ed6e9825b70f6cab0de59f4d771c3ce420ddf82d35f696cb21604ea96a21
[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/reg/semaphore/0.4.0:/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] de11c2df0134e1e3ab3022a6f906495e80310db03739f54ce47d7fd3f0163be0
[INFO] running `"docker" "start" "-a" "de11c2df0134e1e3ab3022a6f906495e80310db03739f54ce47d7fd3f0163be0"`
[INFO] [stderr]    Compiling semaphore v0.4.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `"docker" "inspect" "de11c2df0134e1e3ab3022a6f906495e80310db03739f54ce47d7fd3f0163be0"`
[INFO] running `"docker" "rm" "-f" "de11c2df0134e1e3ab3022a6f906495e80310db03739f54ce47d7fd3f0163be0"`
[INFO] [stdout] de11c2df0134e1e3ab3022a6f906495e80310db03739f54ce47d7fd3f0163be0
[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/reg/semaphore/0.4.0:/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] 89c12c9d1cf50a7e27949205423186810561e1b3c82569c6670828259595cc12
[INFO] running `"docker" "start" "-a" "89c12c9d1cf50a7e27949205423186810561e1b3c82569c6670828259595cc12"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/semaphore-a3d63bf105031c17
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::shutdown_complete_when_empty ... ok
[INFO] [stdout] test tests::first_shutdown_can_extract_resource ... ok
[INFO] [stdout] test tests::dropping_guard_frees_capacity ... ok
[INFO] [stdout] test tests::fails_to_acquire_when_shut_down ... ok
[INFO] [stdout] test tests::fails_to_acquire_when_full ... ok
[INFO] [stdout] test tests::shutdown_complete_when_guard_drops ... ok
[INFO] [stdout] test tests::succeeds_to_acquire_when_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests semaphore
[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" "89c12c9d1cf50a7e27949205423186810561e1b3c82569c6670828259595cc12"`
[INFO] running `"docker" "rm" "-f" "89c12c9d1cf50a7e27949205423186810561e1b3c82569c6670828259595cc12"`
[INFO] [stdout] 89c12c9d1cf50a7e27949205423186810561e1b3c82569c6670828259595cc12