[INFO] fetching crate spacetrace-visualizer 0.1.0...
[INFO] checking spacetrace-visualizer-0.1.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate spacetrace-visualizer 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate spacetrace-visualizer 0.1.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spacetrace-visualizer 0.1.0
[INFO] finished tweaking crates.io crate spacetrace-visualizer 0.1.0
[INFO] tweaked toml for crates.io crate spacetrace-visualizer 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate spacetrace-visualizer 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] bda1f8fc6de9c12f7fd51b8d0b14f028352da1f3392d86eb8f5ca62b19ba9bae
[INFO] running `Command { std: "docker" "start" "-a" "bda1f8fc6de9c12f7fd51b8d0b14f028352da1f3392d86eb8f5ca62b19ba9bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bda1f8fc6de9c12f7fd51b8d0b14f028352da1f3392d86eb8f5ca62b19ba9bae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda1f8fc6de9c12f7fd51b8d0b14f028352da1f3392d86eb8f5ca62b19ba9bae", kill_on_drop: false }`
[INFO] [stdout] bda1f8fc6de9c12f7fd51b8d0b14f028352da1f3392d86eb8f5ca62b19ba9bae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "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] 66850ac237652e61b5e35104d3ce73e2f630f02e084316c81068d79626757780
[INFO] running `Command { std: "docker" "start" "-a" "66850ac237652e61b5e35104d3ce73e2f630f02e084316c81068d79626757780", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
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[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling unicode-xid v0.2.2
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[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking bitflags v1.3.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
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[INFO] [stderr]     Checking gimli v0.25.0
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[INFO] [stderr]    Compiling num-integer v0.1.44
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[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling rustc_version v0.2.3
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[INFO] [stderr]    Compiling freetype-sys v0.13.1
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[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.16.0
[INFO] [stderr]     Checking freetype v0.7.0
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]     Checking font-kit v0.10.1
[INFO] [stderr]     Checking plotters-bitmap v0.3.1
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking autojson v0.1.0
[INFO] [stderr]     Checking spacetrace v0.1.0
[INFO] [stderr]     Checking spacetrace-visualizer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SVGBackend`
[INFO] [stdout]  --> src/main.rs:6:66
[INFO] [stdout]   |
[INFO] [stdout] 6 | use plotters::prelude::{BitMapBackend, ChartBuilder, LineSeries, SVGBackend};
[INFO] [stdout]   |                                                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BLACK`, `GREEN`
[INFO] [stdout]  --> src/main.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use plotters::style::{BLACK, GREEN, RED, WHITE};
[INFO] [stdout]   |                       ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SVGBackend`
[INFO] [stdout]  --> src/main.rs:6:66
[INFO] [stdout]   |
[INFO] [stdout] 6 | use plotters::prelude::{BitMapBackend, ChartBuilder, LineSeries, SVGBackend};
[INFO] [stdout]   |                                                                  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BLACK`, `GREEN`
[INFO] [stdout]  --> src/main.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use plotters::style::{BLACK, GREEN, RED, WHITE};
[INFO] [stdout]   |                       ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 23s
[INFO] running `Command { std: "docker" "inspect" "66850ac237652e61b5e35104d3ce73e2f630f02e084316c81068d79626757780", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66850ac237652e61b5e35104d3ce73e2f630f02e084316c81068d79626757780", kill_on_drop: false }`
[INFO] [stdout] 66850ac237652e61b5e35104d3ce73e2f630f02e084316c81068d79626757780