[INFO] fetching crate yaml-peg 0.25.0...
[INFO] testing yaml-peg-0.25.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate yaml-peg 0.25.0 into /workspace/builds/worker-46/source
[INFO] validating manifest of crates.io crate yaml-peg 0.25.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yaml-peg 0.25.0
[INFO] finished tweaking crates.io crate yaml-peg 0.25.0
[INFO] tweaked toml for crates.io crate yaml-peg 0.25.0 written to /workspace/builds/worker-46/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12f59cae7ce0386455818da7faaf330c9b0af2e29e6dda21137798d0d4e2c716
[INFO] running `Command { std: "docker" "start" "-a" "12f59cae7ce0386455818da7faaf330c9b0af2e29e6dda21137798d0d4e2c716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12f59cae7ce0386455818da7faaf330c9b0af2e29e6dda21137798d0d4e2c716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12f59cae7ce0386455818da7faaf330c9b0af2e29e6dda21137798d0d4e2c716", kill_on_drop: false }`
[INFO] [stdout] 12f59cae7ce0386455818da7faaf330c9b0af2e29e6dda21137798d0d4e2c716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01ec6247fe428dc9283e8d29004597865616b6db8abc485145f313d61e132d31
[INFO] running `Command { std: "docker" "start" "-a" "01ec6247fe428dc9283e8d29004597865616b6db8abc485145f313d61e132d31", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling griddle v0.5.2
[INFO] [stderr]    Compiling ritelinked v0.3.2
[INFO] [stderr]    Compiling yaml-peg v0.25.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.70s
[INFO] running `Command { std: "docker" "inspect" "01ec6247fe428dc9283e8d29004597865616b6db8abc485145f313d61e132d31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01ec6247fe428dc9283e8d29004597865616b6db8abc485145f313d61e132d31", kill_on_drop: false }`
[INFO] [stdout] 01ec6247fe428dc9283e8d29004597865616b6db8abc485145f313d61e132d31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-46/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8cc40011135bfcfd8355bed413fed50beb864e05c0aa874a201150239a619d64
[INFO] running `Command { std: "docker" "start" "-a" "8cc40011135bfcfd8355bed413fed50beb864e05c0aa874a201150239a619d64", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling yaml-peg v0.25.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `std`
[INFO] [stdout]    --> src/tests/mod.rs:131:5
[INFO] [stdout]     |
[INFO] [stdout] 131 |     std::mem::drop(anchor);
[INFO] [stdout]     |     ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yaml-peg` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "8cc40011135bfcfd8355bed413fed50beb864e05c0aa874a201150239a619d64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8cc40011135bfcfd8355bed413fed50beb864e05c0aa874a201150239a619d64", kill_on_drop: false }`
[INFO] [stdout] 8cc40011135bfcfd8355bed413fed50beb864e05c0aa874a201150239a619d64