[INFO] fetching crate instrumented-mpsc 0.1.0...
[INFO] testing instrumented-mpsc-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate instrumented-mpsc 0.1.0 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate instrumented-mpsc 0.1.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate instrumented-mpsc 0.1.0
[INFO] finished tweaking crates.io crate instrumented-mpsc 0.1.0
[INFO] tweaked toml for crates.io crate instrumented-mpsc 0.1.0 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 07a08beffc84d81d883884b192782ad0418dd0d1a3cfdf2003e06eb58a9bff56
[INFO] running `Command { std: "docker" "start" "-a" "07a08beffc84d81d883884b192782ad0418dd0d1a3cfdf2003e06eb58a9bff56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07a08beffc84d81d883884b192782ad0418dd0d1a3cfdf2003e06eb58a9bff56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a08beffc84d81d883884b192782ad0418dd0d1a3cfdf2003e06eb58a9bff56", kill_on_drop: false }`
[INFO] [stdout] 07a08beffc84d81d883884b192782ad0418dd0d1a3cfdf2003e06eb58a9bff56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bc6d062b4628b50c16111ba36b8a5385572673a4a8ab9e672b0792202ae48e0
[INFO] running `Command { std: "docker" "start" "-a" "3bc6d062b4628b50c16111ba36b8a5385572673a4a8ab9e672b0792202ae48e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-io v0.3.17
[INFO] [stderr]    Compiling protobuf v2.25.1
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling instrumented-mpsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.65s
[INFO] running `Command { std: "docker" "inspect" "3bc6d062b4628b50c16111ba36b8a5385572673a4a8ab9e672b0792202ae48e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bc6d062b4628b50c16111ba36b8a5385572673a4a8ab9e672b0792202ae48e0", kill_on_drop: false }`
[INFO] [stdout] 3bc6d062b4628b50c16111ba36b8a5385572673a4a8ab9e672b0792202ae48e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 454b77791e11291b1f61d531397b4e0b2883a55259ae7a7b15517f1a30ecaeed
[INFO] running `Command { std: "docker" "start" "-a" "454b77791e11291b1f61d531397b4e0b2883a55259ae7a7b15517f1a30ecaeed", kill_on_drop: false }`
[INFO] [stderr]    Compiling instrumented-mpsc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `Command { std: "docker" "inspect" "454b77791e11291b1f61d531397b4e0b2883a55259ae7a7b15517f1a30ecaeed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "454b77791e11291b1f61d531397b4e0b2883a55259ae7a7b15517f1a30ecaeed", kill_on_drop: false }`
[INFO] [stdout] 454b77791e11291b1f61d531397b4e0b2883a55259ae7a7b15517f1a30ecaeed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 072fdbacd06febe7fff1d7e1856c2e0c5f6b5e81c02f11cd842dc7e00c1fc34e
[INFO] running `Command { std: "docker" "start" "-a" "072fdbacd06febe7fff1d7e1856c2e0c5f6b5e81c02f11cd842dc7e00c1fc34e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/instrumented_mpsc-29846046a997fd27)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests instrumented-mpsc
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 20.75s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "072fdbacd06febe7fff1d7e1856c2e0c5f6b5e81c02f11cd842dc7e00c1fc34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072fdbacd06febe7fff1d7e1856c2e0c5f6b5e81c02f11cd842dc7e00c1fc34e", kill_on_drop: false }`
[INFO] [stdout] 072fdbacd06febe7fff1d7e1856c2e0c5f6b5e81c02f11cd842dc7e00c1fc34e