[INFO] fetching crate unwalk 0.2.0-beta1...
[INFO] checking unwalk-0.2.0-beta1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] extracting crate unwalk 0.2.0-beta1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate unwalk 0.2.0-beta1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded clap v2.31.2
[INFO] [stderr]   Downloaded unwalk-gz v0.2.0-beta1
[INFO] [stderr]   Downloaded serde v1.0.37
[INFO] [stderr]   Downloaded unwalk-base v0.2.0-beta1
[INFO] [stderr]   Downloaded structopt-derive v0.2.6
[INFO] [stderr]   Downloaded file v1.1.2
[INFO] [stderr]   Downloaded toml v0.4.5
[INFO] [stderr]   Downloaded serde_derive v1.0.37
[INFO] [stderr]   Downloaded structopt v0.2.6
[INFO] [stderr]   Downloaded walkdir v2.1.4
[INFO] [stderr]   Downloaded serde_derive_internals v0.23.0
[INFO] [stderr]   Downloaded filebuffer v0.3.0
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5683d5f842ad06c42ae69b3ddaee04cedf9a0ebc70244acac48f0c23c68f9e74
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5683d5f842ad06c42ae69b3ddaee04cedf9a0ebc70244acac48f0c23c68f9e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5683d5f842ad06c42ae69b3ddaee04cedf9a0ebc70244acac48f0c23c68f9e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5683d5f842ad06c42ae69b3ddaee04cedf9a0ebc70244acac48f0c23c68f9e74", kill_on_drop: false }`
[INFO] [stdout] 5683d5f842ad06c42ae69b3ddaee04cedf9a0ebc70244acac48f0c23c68f9e74
[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=forbid" "-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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27f9c2a734fc5d7c54c7400325152c579a46410bfbaa8a7930f0f7de481bedfb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "27f9c2a734fc5d7c54c7400325152c579a46410bfbaa8a7930f0f7de481bedfb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking file v1.1.2
[INFO] [stderr]     Checking serde v1.0.37
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking walkdir v2.1.4
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]     Checking filebuffer v0.3.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking 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 a derive macro (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 a derive macro (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 a derive macro (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 a derive macro (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 a derive macro (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 a derive macro (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 a derive macro (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`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "27f9c2a734fc5d7c54c7400325152c579a46410bfbaa8a7930f0f7de481bedfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27f9c2a734fc5d7c54c7400325152c579a46410bfbaa8a7930f0f7de481bedfb", kill_on_drop: false }`
[INFO] [stdout] 27f9c2a734fc5d7c54c7400325152c579a46410bfbaa8a7930f0f7de481bedfb