[INFO] fetching crate e-write-buffer 0.5.0...
[INFO] testing e-write-buffer-0.5.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate e-write-buffer 0.5.0 into /workspace/builds/worker-80/source
[INFO] validating manifest of crates.io crate e-write-buffer 0.5.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate e-write-buffer 0.5.0
[INFO] finished tweaking crates.io crate e-write-buffer 0.5.0
[INFO] tweaked toml for crates.io crate e-write-buffer 0.5.0 written to /workspace/builds/worker-80/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 744f80ed0dceabb4546797bc1a9035ba385e5914521bf74de0eeb8ba114580e3
[INFO] running `Command { std: "docker" "start" "-a" "744f80ed0dceabb4546797bc1a9035ba385e5914521bf74de0eeb8ba114580e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "744f80ed0dceabb4546797bc1a9035ba385e5914521bf74de0eeb8ba114580e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "744f80ed0dceabb4546797bc1a9035ba385e5914521bf74de0eeb8ba114580e3", kill_on_drop: false }`
[INFO] [stdout] 744f80ed0dceabb4546797bc1a9035ba385e5914521bf74de0eeb8ba114580e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76c73e8e5f13dcc6bd363f624aefc0673ad9d89e3eb4a1017316be96d6d65f9f
[INFO] running `Command { std: "docker" "start" "-a" "76c73e8e5f13dcc6bd363f624aefc0673ad9d89e3eb4a1017316be96d6d65f9f", kill_on_drop: false }`
[INFO] [stderr]    Compiling e-write-buffer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "76c73e8e5f13dcc6bd363f624aefc0673ad9d89e3eb4a1017316be96d6d65f9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76c73e8e5f13dcc6bd363f624aefc0673ad9d89e3eb4a1017316be96d6d65f9f", kill_on_drop: false }`
[INFO] [stdout] 76c73e8e5f13dcc6bd363f624aefc0673ad9d89e3eb4a1017316be96d6d65f9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b65a3e6e8c0e9785d319d3f45f8d2eccc7686e8470babf2a02d08196799c3e17
[INFO] running `Command { std: "docker" "start" "-a" "b65a3e6e8c0e9785d319d3f45f8d2eccc7686e8470babf2a02d08196799c3e17", kill_on_drop: false }`
[INFO] [stderr]    Compiling e-write-buffer v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "b65a3e6e8c0e9785d319d3f45f8d2eccc7686e8470babf2a02d08196799c3e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b65a3e6e8c0e9785d319d3f45f8d2eccc7686e8470babf2a02d08196799c3e17", kill_on_drop: false }`
[INFO] [stdout] b65a3e6e8c0e9785d319d3f45f8d2eccc7686e8470babf2a02d08196799c3e17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-80/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b8104922afd551cbfe52354ca79b971e8656ac9d0fcca33443ad09f6c0a8fc87
[INFO] running `Command { std: "docker" "start" "-a" "b8104922afd551cbfe52354ca79b971e8656ac9d0fcca33443ad09f6c0a8fc87", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/e_write_buffer-57012be0e5c3ec7c)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_display ... ok
[INFO] [stdout] test test::test_write_wrapper ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests e-write-buffer
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b8104922afd551cbfe52354ca79b971e8656ac9d0fcca33443ad09f6c0a8fc87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8104922afd551cbfe52354ca79b971e8656ac9d0fcca33443ad09f6c0a8fc87", kill_on_drop: false }`
[INFO] [stdout] b8104922afd551cbfe52354ca79b971e8656ac9d0fcca33443ad09f6c0a8fc87