[INFO] crate tower-tokio 0.0.0 is already in cache
[INFO] extracting crate tower-tokio 0.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/tower-tokio/0.0.0
[INFO] extracting crate tower-tokio 0.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-tokio/0.0.0
[INFO] validating manifest of tower-tokio-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-tokio-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-tokio-0.0.0
[INFO] finished frobbing tower-tokio-0.0.0
[INFO] frobbed toml for tower-tokio-0.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/tower-tokio/0.0.0/Cargo.toml
[INFO] started frobbing tower-tokio-0.0.0
[INFO] finished frobbing tower-tokio-0.0.0
[INFO] frobbed toml for tower-tokio-0.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/tower-tokio/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-tokio-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-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tower-tokio/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] 4aa0e988b54e416e54fea673fdedd52d0cfc769d5a59f08dcca5948ea203aba6
[INFO] running `"docker" "start" "-a" "4aa0e988b54e416e54fea673fdedd52d0cfc769d5a59f08dcca5948ea203aba6"`
[INFO] [stderr]    Compiling tower-tokio v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `"docker" "inspect" "4aa0e988b54e416e54fea673fdedd52d0cfc769d5a59f08dcca5948ea203aba6"`
[INFO] running `"docker" "rm" "-f" "4aa0e988b54e416e54fea673fdedd52d0cfc769d5a59f08dcca5948ea203aba6"`
[INFO] [stdout] 4aa0e988b54e416e54fea673fdedd52d0cfc769d5a59f08dcca5948ea203aba6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tower-tokio/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] 5396547a0752845903e40a2471289ecf15df4019935ce39728aa78256b870b03
[INFO] running `"docker" "start" "-a" "5396547a0752845903e40a2471289ecf15df4019935ce39728aa78256b870b03"`
[INFO] [stderr]    Compiling tower-tokio v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `"docker" "inspect" "5396547a0752845903e40a2471289ecf15df4019935ce39728aa78256b870b03"`
[INFO] running `"docker" "rm" "-f" "5396547a0752845903e40a2471289ecf15df4019935ce39728aa78256b870b03"`
[INFO] [stdout] 5396547a0752845903e40a2471289ecf15df4019935ce39728aa78256b870b03
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/tower-tokio/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] 4ecd995082343583953e5d283028501d35b27941e1f3f182827e170ab1d6c1e3
[INFO] running `"docker" "start" "-a" "4ecd995082343583953e5d283028501d35b27941e1f3f182827e170ab1d6c1e3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tower_tokio-c0268c138b3011a2
[INFO] [stdout] 
[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] [stderr]    Doc-tests tower-tokio
[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" "4ecd995082343583953e5d283028501d35b27941e1f3f182827e170ab1d6c1e3"`
[INFO] running `"docker" "rm" "-f" "4ecd995082343583953e5d283028501d35b27941e1f3f182827e170ab1d6c1e3"`
[INFO] [stdout] 4ecd995082343583953e5d283028501d35b27941e1f3f182827e170ab1d6c1e3