[INFO] fetching crate unwalk 0.2.0-beta1...
[INFO] testing unwalk-0.2.0-beta1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate unwalk 0.2.0-beta1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate unwalk 0.2.0-beta1 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 unwalk 0.2.0-beta1
[INFO] finished tweaking crates.io crate unwalk 0.2.0-beta1
[INFO] tweaked toml for crates.io crate unwalk 0.2.0-beta1 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] b9e2d43f4a400456393f62117f5c8d080243fbcf4ec9a2a1718de3ecaa51bce2
[INFO] running `Command { std: "docker" "start" "-a" "b9e2d43f4a400456393f62117f5c8d080243fbcf4ec9a2a1718de3ecaa51bce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9e2d43f4a400456393f62117f5c8d080243fbcf4ec9a2a1718de3ecaa51bce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9e2d43f4a400456393f62117f5c8d080243fbcf4ec9a2a1718de3ecaa51bce2", kill_on_drop: false }`
[INFO] [stdout] b9e2d43f4a400456393f62117f5c8d080243fbcf4ec9a2a1718de3ecaa51bce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] 50d95d62cc5a43598ac196286c8e4c5f856ef41983727aaf897b8a76ccc32a42
[INFO] running `Command { std: "docker" "start" "-a" "50d95d62cc5a43598ac196286c8e4c5f856ef41983727aaf897b8a76ccc32a42", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.7.0
[INFO] [stderr]    Compiling serde v1.0.37
[INFO] [stderr]    Compiling file v1.1.2
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling walkdir v2.1.4
[INFO] [stderr]    Compiling filebuffer v0.3.0
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling unwalk-base v0.2.0-beta1
[INFO] [stdout] error[E0407]: method `name` is not a member of trait `failure::Fail`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Fail, Debug)]
[INFO] [stdout]   |          ^^^^ not a member of trait `failure::Fail`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `_core` in `failure`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Fail, Debug)]
[INFO] [stdout]   |          ^^^^ could not find `_core` in `failure`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `AsFail` in `failure`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Fail, Debug)]
[INFO] [stdout]   |          ^^^^ could not find `AsFail` in `failure`
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `name` is not a member of trait `failure::Fail`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:42:10
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^ not a member of trait `failure::Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `_core` in `failure`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:42:10
[INFO] [stdout]    |
[INFO] [stdout] 42 | #[derive(Fail, Debug)]
[INFO] [stdout]    |          ^^^^ could not find `_core` in `failure`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `name` is not a member of trait `failure::Fail`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:67:45
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
[INFO] [stdout]    |                                             ^^^^ not a member of trait `failure::Fail`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `_core` in `failure`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/unwalk-base-0.2.0-beta1/src/error.rs:67:45
[INFO] [stdout]    |
[INFO] [stdout] 67 | #[derive(Copy, Clone, Eq, PartialEq, Debug, Fail)]
[INFO] [stdout]    |                                             ^^^^ could not find `_core` in `failure`
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `Fail` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0407, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `unwalk-base` due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "50d95d62cc5a43598ac196286c8e4c5f856ef41983727aaf897b8a76ccc32a42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50d95d62cc5a43598ac196286c8e4c5f856ef41983727aaf897b8a76ccc32a42", kill_on_drop: false }`
[INFO] [stdout] 50d95d62cc5a43598ac196286c8e4c5f856ef41983727aaf897b8a76ccc32a42