[INFO] fetching crate plotsweep 0.1.0...
[INFO] checking plotsweep-0.1.0 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate plotsweep 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate plotsweep 0.1.0 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plotsweep 0.1.0
[INFO] finished tweaking crates.io crate plotsweep 0.1.0
[INFO] tweaked toml for crates.io crate plotsweep 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate plotsweep 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 04bb0edaaa78fef4702eb75b757091085cf8d6e061d6cd19c6c6fc8d33ecd4b3
[INFO] running `Command { std: "docker" "start" "-a" "04bb0edaaa78fef4702eb75b757091085cf8d6e061d6cd19c6c6fc8d33ecd4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04bb0edaaa78fef4702eb75b757091085cf8d6e061d6cd19c6c6fc8d33ecd4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04bb0edaaa78fef4702eb75b757091085cf8d6e061d6cd19c6c6fc8d33ecd4b3", kill_on_drop: false }`
[INFO] [stdout] 04bb0edaaa78fef4702eb75b757091085cf8d6e061d6cd19c6c6fc8d33ecd4b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cca6fa8f40d01e22c3fc59aae246718ef39c2ffd367c90fe6779e91c928b2d82
[INFO] running `Command { std: "docker" "start" "-a" "cca6fa8f40d01e22c3fc59aae246718ef39c2ffd367c90fe6779e91c928b2d82", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking colorous v1.0.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.9
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking freetype v0.4.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking servo-fontconfig v0.4.0
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking font-kit v0.7.1
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking plotters-bitmap v0.3.0
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking plotsweep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.56s
[INFO] running `Command { std: "docker" "inspect" "cca6fa8f40d01e22c3fc59aae246718ef39c2ffd367c90fe6779e91c928b2d82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cca6fa8f40d01e22c3fc59aae246718ef39c2ffd367c90fe6779e91c928b2d82", kill_on_drop: false }`
[INFO] [stdout] cca6fa8f40d01e22c3fc59aae246718ef39c2ffd367c90fe6779e91c928b2d82