[INFO] cloning repository https://github.com/zaphar/ucg
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zaphar/ucg" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaphar%2Fucg", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaphar%2Fucg'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72de6043845744928602f77b50aae56b20607984
[INFO] checking zaphar/ucg against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzaphar%2Fucg" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zaphar/ucg on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zaphar/ucg
[INFO] finished tweaking git repo https://github.com/zaphar/ucg
[INFO] tweaked toml for git repo https://github.com/zaphar/ucg written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/zaphar/ucg already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d01dcd4c8e07f5c038f061c384b9cb81c4fd0c8283fb846b3b3d34b28207bacf
[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" "d01dcd4c8e07f5c038f061c384b9cb81c4fd0c8283fb846b3b3d34b28207bacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d01dcd4c8e07f5c038f061c384b9cb81c4fd0c8283fb846b3b3d34b28207bacf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d01dcd4c8e07f5c038f061c384b9cb81c4fd0c8283fb846b3b3d34b28207bacf", kill_on_drop: false }`
[INFO] [stdout] d01dcd4c8e07f5c038f061c384b9cb81c4fd0c8283fb846b3b3d34b28207bacf
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d7f2a3d760defd4a8b6fe74ad8777a1b452b844c6dd8540679ee0d3efdd989e
[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" "6d7f2a3d760defd4a8b6fe74ad8777a1b452b844c6dd8540679ee0d3efdd989e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.59
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking simple-error v0.1.12
[INFO] [stderr]     Checking abortable_parser v0.2.3
[INFO] [stderr]     Checking xml-rs v0.8.0
[INFO] [stderr]    Compiling walkdir v2.2.8
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking regex-syntax v0.6.8
[INFO] [stderr]     Checking aho-corasick v0.7.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking serde_yaml v0.8.9
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]    Compiling ucg v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking rustyline v4.1.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.21s
[INFO] running `Command { std: "docker" "inspect" "6d7f2a3d760defd4a8b6fe74ad8777a1b452b844c6dd8540679ee0d3efdd989e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d7f2a3d760defd4a8b6fe74ad8777a1b452b844c6dd8540679ee0d3efdd989e", kill_on_drop: false }`
[INFO] [stdout] 6d7f2a3d760defd4a8b6fe74ad8777a1b452b844c6dd8540679ee0d3efdd989e