[INFO] fetching crate web_canvas 0.0.4...
[INFO] checking web_canvas-0.0.4 against master#c9228570668803e3e6402770d55f23a12c9ae686 for pr-79472
[INFO] extracting crate web_canvas 0.0.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate web_canvas 0.0.4 on toolchain c9228570668803e3e6402770d55f23a12c9ae686
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate web_canvas 0.0.4
[INFO] finished tweaking crates.io crate web_canvas 0.0.4
[INFO] tweaked toml for crates.io crate web_canvas 0.0.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0439fdbea3963e4465fb3cbffb0900b36021cf65382b34e3735e4b4552e4eb17
[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" "0439fdbea3963e4465fb3cbffb0900b36021cf65382b34e3735e4b4552e4eb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0439fdbea3963e4465fb3cbffb0900b36021cf65382b34e3735e4b4552e4eb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0439fdbea3963e4465fb3cbffb0900b36021cf65382b34e3735e4b4552e4eb17", kill_on_drop: false }`
[INFO] [stdout] 0439fdbea3963e4465fb3cbffb0900b36021cf65382b34e3735e4b4552e4eb17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+c9228570668803e3e6402770d55f23a12c9ae686" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3690b93a3a8fb10d373bbb582e0bfed829fa3679b3b27b1b980d36ee3979f78
[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" "a3690b93a3a8fb10d373bbb582e0bfed829fa3679b3b27b1b980d36ee3979f78", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking spin v0.7.0
[INFO] [stderr]     Checking cty v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking callback v0.5.2
[INFO] [stderr]     Checking cstring v0.0.5
[INFO] [stderr]     Checking js v0.2.12
[INFO] [stderr]     Checking web_canvas v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.41s
[INFO] running `Command { std: "docker" "inspect" "a3690b93a3a8fb10d373bbb582e0bfed829fa3679b3b27b1b980d36ee3979f78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3690b93a3a8fb10d373bbb582e0bfed829fa3679b3b27b1b980d36ee3979f78", kill_on_drop: false }`
[INFO] [stdout] a3690b93a3a8fb10d373bbb582e0bfed829fa3679b3b27b1b980d36ee3979f78