[INFO] crate tower-util 0.1.0 is already in cache
[INFO] extracting crate tower-util 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/tower-util/0.1.0
[INFO] extracting crate tower-util 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tower-util/0.1.0
[INFO] validating manifest of tower-util-0.1.0 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 tower-util-0.1.0 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 tower-util-0.1.0
[INFO] finished frobbing tower-util-0.1.0
[INFO] frobbed toml for tower-util-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/tower-util/0.1.0/Cargo.toml
[INFO] started frobbing tower-util-0.1.0
[INFO] finished frobbing tower-util-0.1.0
[INFO] frobbed toml for tower-util-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/tower-util/0.1.0/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 tower-util-0.1.0 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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tower-util/0.1.0:/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] 810175a28689f5aedc895445c4df7e9bf6b488ccdd98796e86c3565a20dd06f9
[INFO] running `"docker" "start" "-a" "810175a28689f5aedc895445c4df7e9bf6b488ccdd98796e86c3565a20dd06f9"`
[INFO] [stderr]    Compiling tower-layer v0.1.0
[INFO] [stderr]    Compiling tower-util v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.06s
[INFO] running `"docker" "inspect" "810175a28689f5aedc895445c4df7e9bf6b488ccdd98796e86c3565a20dd06f9"`
[INFO] running `"docker" "rm" "-f" "810175a28689f5aedc895445c4df7e9bf6b488ccdd98796e86c3565a20dd06f9"`
[INFO] [stdout] 810175a28689f5aedc895445c4df7e9bf6b488ccdd98796e86c3565a20dd06f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tower-util/0.1.0:/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] a278dd2b27f402517e537827c78425ab6cbbab0c5aa15431068d0317cff90c47
[INFO] running `"docker" "start" "-a" "a278dd2b27f402517e537827c78425ab6cbbab0c5aa15431068d0317cff90c47"`
[INFO] [stderr]    Compiling tracing-core v0.1.2
[INFO] [stderr]    Compiling tokio-mock-task v0.1.1
[INFO] [stderr]    Compiling tower-discover v0.1.0
[INFO] [stderr]    Compiling tower-test v0.1.0
[INFO] [stderr]    Compiling tower-load-shed v0.1.0
[INFO] [stderr]    Compiling tower-limit v0.1.0
[INFO] [stderr]    Compiling tower-timeout v0.1.1
[INFO] [stderr]    Compiling tower-retry v0.1.0
[INFO] [stderr]    Compiling tower-util v0.1.0
[INFO] [stderr]    Compiling tracing v0.1.3
[INFO] [stderr]    Compiling tower-buffer v0.1.1
[INFO] [stderr]    Compiling tower v0.1.1
[INFO] [stderr]    Compiling tower-util v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.11s
[INFO] running `"docker" "inspect" "a278dd2b27f402517e537827c78425ab6cbbab0c5aa15431068d0317cff90c47"`
[INFO] running `"docker" "rm" "-f" "a278dd2b27f402517e537827c78425ab6cbbab0c5aa15431068d0317cff90c47"`
[INFO] [stdout] a278dd2b27f402517e537827c78425ab6cbbab0c5aa15431068d0317cff90c47
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/tower-util/0.1.0:/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] fa82b837c1469142429ef4a2456ad1111739b48766312ced8cee107c9746fae1
[INFO] running `"docker" "start" "-a" "fa82b837c1469142429ef4a2456ad1111739b48766312ced8cee107c9746fae1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tower_util-6c106d9c049dc1a6
[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 2 tests
[INFO] [stderr]      Running /opt/crater/target/debug/deps/call_all-4290808a7aeb3a56
[INFO] [stderr]    Doc-tests tower-util
[INFO] [stdout] test ordered ... ok
[INFO] [stdout] test unordered ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/boxed/mod.rs - boxed (line 16) ... ok
[INFO] [stdout] test src/call_all/ordered.rs - call_all::ordered::CallAll (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "fa82b837c1469142429ef4a2456ad1111739b48766312ced8cee107c9746fae1"`
[INFO] running `"docker" "rm" "-f" "fa82b837c1469142429ef4a2456ad1111739b48766312ced8cee107c9746fae1"`
[INFO] [stdout] fa82b837c1469142429ef4a2456ad1111739b48766312ced8cee107c9746fae1