[INFO] fetching crate tower-buffer 0.1.1...
[INFO] extracting crate tower-buffer 0.1.1 into work/ex/beta-1.37-6/sources/1.36.0/reg/tower-buffer/0.1.1
[INFO] extracting crate tower-buffer 0.1.1 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tower-buffer/0.1.1
[INFO] validating manifest of tower-buffer-0.1.1 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 tower-buffer-0.1.1 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 tower-buffer-0.1.1
[INFO] finished frobbing tower-buffer-0.1.1
[INFO] frobbed toml for tower-buffer-0.1.1 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tower-buffer/0.1.1/Cargo.toml
[INFO] started frobbing tower-buffer-0.1.1
[INFO] finished frobbing tower-buffer-0.1.1
[INFO] frobbed toml for tower-buffer-0.1.1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tower-buffer/0.1.1/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 tower-buffer-0.1.1 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-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tower-buffer/0.1.1:/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] 48e7564c83f8e40b175df752f4463dbe9e68868d5be31b4a359929d2e953bbbb
[INFO] running `"docker" "start" "-a" "48e7564c83f8e40b175df752f4463dbe9e68868d5be31b4a359929d2e953bbbb"`
[INFO] [stderr]    Compiling tracing-core v0.1.2
[INFO] [stderr]    Compiling tracing v0.1.3
[INFO] [stderr]    Compiling tower-buffer v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `"docker" "inspect" "48e7564c83f8e40b175df752f4463dbe9e68868d5be31b4a359929d2e953bbbb"`
[INFO] running `"docker" "rm" "-f" "48e7564c83f8e40b175df752f4463dbe9e68868d5be31b4a359929d2e953bbbb"`
[INFO] [stdout] 48e7564c83f8e40b175df752f4463dbe9e68868d5be31b4a359929d2e953bbbb
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tower-buffer/0.1.1:/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] 29b375c19249d6f636fdf05553537a54c641811b317f7c3457677a5330266fd6
[INFO] running `"docker" "start" "-a" "29b375c19249d6f636fdf05553537a54c641811b317f7c3457677a5330266fd6"`
[INFO] [stderr]    Compiling tower-discover v0.1.0
[INFO] [stderr]    Compiling tower-load-shed v0.1.0
[INFO] [stderr]    Compiling tower-retry v0.1.0
[INFO] [stderr]    Compiling tower-limit v0.1.0
[INFO] [stderr]    Compiling tower-timeout v0.1.1
[INFO] [stderr]    Compiling tower-buffer v0.1.1
[INFO] [stderr]    Compiling tower-util v0.1.0
[INFO] [stderr]    Compiling tower v0.1.1
[INFO] [stderr]    Compiling tower-buffer v0.1.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.65s
[INFO] running `"docker" "inspect" "29b375c19249d6f636fdf05553537a54c641811b317f7c3457677a5330266fd6"`
[INFO] running `"docker" "rm" "-f" "29b375c19249d6f636fdf05553537a54c641811b317f7c3457677a5330266fd6"`
[INFO] [stdout] 29b375c19249d6f636fdf05553537a54c641811b317f7c3457677a5330266fd6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-6/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tower-buffer/0.1.1:/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] 98a60460a92382e0d5205acbce6ffc565e3dca9b46b3614486d1a74473c92fee
[INFO] running `"docker" "start" "-a" "98a60460a92382e0d5205acbce6ffc565e3dca9b46b3614486d1a74473c92fee"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tower_buffer-0ca4bda3b6848919
[INFO] [stderr]      Running /opt/crater/target/debug/deps/buffer-12282f36e9230e62
[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 7 tests
[INFO] [stdout] test when_spawn_fails ... ok
[INFO] [stdout] test response_future_when_worker_is_dropped_early ... ok
[INFO] [stdout] test poll_ready_when_worker_is_dropped_early ... ok
[INFO] [stdout] test req_and_res ... ok
[INFO] [stdout] test clears_canceled_requests ... ok
[INFO] [stdout] test when_inner_fails ... ok
[INFO] [stderr]    Doc-tests tower-buffer
[INFO] [stdout] test when_inner_is_not_ready ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 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" "98a60460a92382e0d5205acbce6ffc565e3dca9b46b3614486d1a74473c92fee"`
[INFO] running `"docker" "rm" "-f" "98a60460a92382e0d5205acbce6ffc565e3dca9b46b3614486d1a74473c92fee"`
[INFO] [stdout] 98a60460a92382e0d5205acbce6ffc565e3dca9b46b3614486d1a74473c92fee