[INFO] fetching crate pop-trait 0.2.1...
[INFO] checking pop-trait-0.2.1 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] extracting crate pop-trait 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate pop-trait 0.2.1 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pop-trait 0.2.1
[INFO] finished tweaking crates.io crate pop-trait 0.2.1
[INFO] tweaked toml for crates.io crate pop-trait 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8124379948f4b00fad44e0e0d3a2f6d946fcab7ea20520df9cba21474ca931b
[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" "c8124379948f4b00fad44e0e0d3a2f6d946fcab7ea20520df9cba21474ca931b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8124379948f4b00fad44e0e0d3a2f6d946fcab7ea20520df9cba21474ca931b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8124379948f4b00fad44e0e0d3a2f6d946fcab7ea20520df9cba21474ca931b", kill_on_drop: false }`
[INFO] [stdout] c8124379948f4b00fad44e0e0d3a2f6d946fcab7ea20520df9cba21474ca931b
[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=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" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dc7426a5b9e5dd3f727214d0c9727ab172f857298fc60520d8a0838b115107c
[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" "5dc7426a5b9e5dd3f727214d0c9727ab172f857298fc60520d8a0838b115107c", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking linked-list v0.0.3
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking compare v0.0.6
[INFO] [stderr]     Checking linear-map v0.0.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking enum-set v0.0.8
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking interval-heap v0.0.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking traverse v0.0.12
[INFO] [stderr]     Checking blist v0.0.4
[INFO] [stderr]     Checking len-trait v0.2.6
[INFO] [stderr]     Checking pop-trait v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `clippy`
[INFO] [stdout]  --> src/lib.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(test, plugin(clippy))]
[INFO] [stdout]   |                          ^^^^^^ can't find crate
[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 E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pop-trait`
[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" "5dc7426a5b9e5dd3f727214d0c9727ab172f857298fc60520d8a0838b115107c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc7426a5b9e5dd3f727214d0c9727ab172f857298fc60520d8a0838b115107c", kill_on_drop: false }`
[INFO] [stdout] 5dc7426a5b9e5dd3f727214d0c9727ab172f857298fc60520d8a0838b115107c