[INFO] fetching crate dotter 0.2.4...
[INFO] checking dotter-0.2.4 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate dotter 0.2.4 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate dotter 0.2.4 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dotter 0.2.4
[INFO] finished tweaking crates.io crate dotter 0.2.4
[INFO] tweaked toml for crates.io crate dotter 0.2.4 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa6de15af801a2fb52850c8383981e8518037141fa20f1853093e4f2e56f69c3
[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" "aa6de15af801a2fb52850c8383981e8518037141fa20f1853093e4f2e56f69c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa6de15af801a2fb52850c8383981e8518037141fa20f1853093e4f2e56f69c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa6de15af801a2fb52850c8383981e8518037141fa20f1853093e4f2e56f69c3", kill_on_drop: false }`
[INFO] [stdout] aa6de15af801a2fb52850c8383981e8518037141fa20f1853093e4f2e56f69c3
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7df8bfc5daf5b85f583a92548a8f33d55f9b1461759cef9ead7f0018cdd2ea2f
[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" "7df8bfc5daf5b85f583a92548a8f33d55f9b1461759cef9ead7f0018cdd2ea2f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking dotter v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.21s
[INFO] running `Command { std: "docker" "inspect" "7df8bfc5daf5b85f583a92548a8f33d55f9b1461759cef9ead7f0018cdd2ea2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7df8bfc5daf5b85f583a92548a8f33d55f9b1461759cef9ead7f0018cdd2ea2f", kill_on_drop: false }`
[INFO] [stdout] 7df8bfc5daf5b85f583a92548a8f33d55f9b1461759cef9ead7f0018cdd2ea2f