[INFO] fetching crate variant 0.1.0...
[INFO] checking variant-0.1.0 against master#50e1dc1536264ab71c0850f346b12309477f29f7 for pr-85073
[INFO] extracting crate variant 0.1.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate variant 0.1.0 on toolchain 50e1dc1536264ab71c0850f346b12309477f29f7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate variant 0.1.0
[INFO] finished tweaking crates.io crate variant 0.1.0
[INFO] tweaked toml for crates.io crate variant 0.1.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c453a86150ceee4270bf298baf7e7e686d6cffcfdc5a99d61d9c294436e0e109
[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" "c453a86150ceee4270bf298baf7e7e686d6cffcfdc5a99d61d9c294436e0e109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c453a86150ceee4270bf298baf7e7e686d6cffcfdc5a99d61d9c294436e0e109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c453a86150ceee4270bf298baf7e7e686d6cffcfdc5a99d61d9c294436e0e109", kill_on_drop: false }`
[INFO] [stdout] c453a86150ceee4270bf298baf7e7e686d6cffcfdc5a99d61d9c294436e0e109
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+50e1dc1536264ab71c0850f346b12309477f29f7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2a7b9561c5150dfbdf5c8c63d20f2ba54eeb7fae75d1c73b617a29f07ff0dcf
[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" "d2a7b9561c5150dfbdf5c8c63d20f2ba54eeb7fae75d1c73b617a29f07ff0dcf", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking mersenne_twister v1.1.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking variant v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] error[E0432]: unresolved import `variety`
[INFO] [stdout]  --> benches/experiment_gen.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use variety::experiments;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `variety`
[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 E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `variant`
[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" "d2a7b9561c5150dfbdf5c8c63d20f2ba54eeb7fae75d1c73b617a29f07ff0dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2a7b9561c5150dfbdf5c8c63d20f2ba54eeb7fae75d1c73b617a29f07ff0dcf", kill_on_drop: false }`
[INFO] [stdout] d2a7b9561c5150dfbdf5c8c63d20f2ba54eeb7fae75d1c73b617a29f07ff0dcf