[INFO] fetching crate multiboot2-host 0.2.1...
[INFO] testing multiboot2-host-0.2.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate multiboot2-host 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate multiboot2-host 0.2.1 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 multiboot2-host 0.2.1
[INFO] finished tweaking crates.io crate multiboot2-host 0.2.1
[INFO] tweaked toml for crates.io crate multiboot2-host 0.2.1 written to /workspace/builds/worker-7/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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] c5cf40d2d8f13f3a6bfa7df5fe0991c8ded6dc6cc8c1a22fda734b7e49773d59
[INFO] running `Command { std: "docker" "start" "-a" "c5cf40d2d8f13f3a6bfa7df5fe0991c8ded6dc6cc8c1a22fda734b7e49773d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c5cf40d2d8f13f3a6bfa7df5fe0991c8ded6dc6cc8c1a22fda734b7e49773d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5cf40d2d8f13f3a6bfa7df5fe0991c8ded6dc6cc8c1a22fda734b7e49773d59", kill_on_drop: false }`
[INFO] [stdout] c5cf40d2d8f13f3a6bfa7df5fe0991c8ded6dc6cc8c1a22fda734b7e49773d59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] d44d7bdae155cd8c9e3151ec8efccb07b162872caa4c7dab6fd7c2ed065e874c
[INFO] running `Command { std: "docker" "start" "-a" "d44d7bdae155cd8c9e3151ec8efccb07b162872caa4c7dab6fd7c2ed065e874c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]    Compiling num_enum v0.5.4
[INFO] [stderr]    Compiling multiboot2-host v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.46s
[INFO] running `Command { std: "docker" "inspect" "d44d7bdae155cd8c9e3151ec8efccb07b162872caa4c7dab6fd7c2ed065e874c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d44d7bdae155cd8c9e3151ec8efccb07b162872caa4c7dab6fd7c2ed065e874c", kill_on_drop: false }`
[INFO] [stdout] d44d7bdae155cd8c9e3151ec8efccb07b162872caa4c7dab6fd7c2ed065e874c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5a89f861efef0c09b91e843e6d687c4c55e352257f7a3f81004bc90b2014d699
[INFO] running `Command { std: "docker" "start" "-a" "5a89f861efef0c09b91e843e6d687c4c55e352257f7a3f81004bc90b2014d699", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling multiboot2-host v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "5a89f861efef0c09b91e843e6d687c4c55e352257f7a3f81004bc90b2014d699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a89f861efef0c09b91e843e6d687c4c55e352257f7a3f81004bc90b2014d699", kill_on_drop: false }`
[INFO] [stdout] 5a89f861efef0c09b91e843e6d687c4c55e352257f7a3f81004bc90b2014d699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 07f8ca7aeba5eaa6a0728c9c36bbde9302ebfdb7cdafd4017e31c8d5f6d6e209
[INFO] running `Command { std: "docker" "start" "-a" "07f8ca7aeba5eaa6a0728c9c36bbde9302ebfdb7cdafd4017e31c8d5f6d6e209", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/multiboot2_host-8d1533638b20a160)
[INFO] [stderr]    Doc-tests multiboot2-host
[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; finished in 0.00s
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "07f8ca7aeba5eaa6a0728c9c36bbde9302ebfdb7cdafd4017e31c8d5f6d6e209", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f8ca7aeba5eaa6a0728c9c36bbde9302ebfdb7cdafd4017e31c8d5f6d6e209", kill_on_drop: false }`
[INFO] [stdout] 07f8ca7aeba5eaa6a0728c9c36bbde9302ebfdb7cdafd4017e31c8d5f6d6e209