[INFO] crate tower-stack 0.0.0 is already in cache
[INFO] extracting crate tower-stack 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tower-stack/0.0.0
[INFO] extracting crate tower-stack 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-stack/0.0.0
[INFO] validating manifest of tower-stack-0.0.0 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 tower-stack-0.0.0 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 tower-stack-0.0.0
[INFO] finished frobbing tower-stack-0.0.0
[INFO] frobbed toml for tower-stack-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tower-stack/0.0.0/Cargo.toml
[INFO] started frobbing tower-stack-0.0.0
[INFO] finished frobbing tower-stack-0.0.0
[INFO] frobbed toml for tower-stack-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-stack/0.0.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[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 tower-stack-0.0.0 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tower-stack/0.0.0:/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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] f624bbc54239a42e9407e46e277586747a149eeb4fc4ee77519367c1110d5289
[INFO] running `"docker" "start" "-a" "f624bbc54239a42e9407e46e277586747a149eeb4fc4ee77519367c1110d5289"`
[INFO] [stderr]    Compiling tower-stack v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `"docker" "inspect" "f624bbc54239a42e9407e46e277586747a149eeb4fc4ee77519367c1110d5289"`
[INFO] running `"docker" "rm" "-f" "f624bbc54239a42e9407e46e277586747a149eeb4fc4ee77519367c1110d5289"`
[INFO] [stdout] f624bbc54239a42e9407e46e277586747a149eeb4fc4ee77519367c1110d5289
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tower-stack/0.0.0:/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" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 7bc0abeec189b79b38c271606a7703668b2dad7277132d4a0746d6588f585893
[INFO] running `"docker" "start" "-a" "7bc0abeec189b79b38c271606a7703668b2dad7277132d4a0746d6588f585893"`
[INFO] [stderr]    Compiling tower-stack v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "7bc0abeec189b79b38c271606a7703668b2dad7277132d4a0746d6588f585893"`
[INFO] running `"docker" "rm" "-f" "7bc0abeec189b79b38c271606a7703668b2dad7277132d4a0746d6588f585893"`
[INFO] [stdout] 7bc0abeec189b79b38c271606a7703668b2dad7277132d4a0746d6588f585893
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tower-stack/0.0.0:/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" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 383a469d07356f538f67253209a9013b0ffd06a059e066b1d3bdf486acbd2229
[INFO] running `"docker" "start" "-a" "383a469d07356f538f67253209a9013b0ffd06a059e066b1d3bdf486acbd2229"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tower_stack-020e7994103bfba6
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tower-stack
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "383a469d07356f538f67253209a9013b0ffd06a059e066b1d3bdf486acbd2229"`
[INFO] running `"docker" "rm" "-f" "383a469d07356f538f67253209a9013b0ffd06a059e066b1d3bdf486acbd2229"`
[INFO] [stdout] 383a469d07356f538f67253209a9013b0ffd06a059e066b1d3bdf486acbd2229