[INFO] cloning repository https://github.com/cjbassi/i3-workspace-groups
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cjbassi/i3-workspace-groups" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjbassi%2Fi3-workspace-groups", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjbassi%2Fi3-workspace-groups'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05f643afa346afb1f7aadf908b06d4ea2b4f456f
[INFO] checking cjbassi/i3-workspace-groups against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcjbassi%2Fi3-workspace-groups" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cjbassi/i3-workspace-groups on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cjbassi/i3-workspace-groups
[INFO] finished tweaking git repo https://github.com/cjbassi/i3-workspace-groups
[INFO] tweaked toml for git repo https://github.com/cjbassi/i3-workspace-groups written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/cjbassi/i3-workspace-groups already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f547013ff655bd72321945215ac860d96b9d4ef42548bd6e9140e46ea5d7d104
[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" "f547013ff655bd72321945215ac860d96b9d4ef42548bd6e9140e46ea5d7d104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f547013ff655bd72321945215ac860d96b9d4ef42548bd6e9140e46ea5d7d104", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f547013ff655bd72321945215ac860d96b9d4ef42548bd6e9140e46ea5d7d104", kill_on_drop: false }`
[INFO] [stdout] f547013ff655bd72321945215ac860d96b9d4ef42548bd6e9140e46ea5d7d104
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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] 372922aaf4710acf59139a88b4da06b9bf6cbe24399077aeeb8c5d749e0768f7
[INFO] running `Command { std: "docker" "start" "-a" "372922aaf4710acf59139a88b4da06b9bf6cbe24399077aeeb8c5d749e0768f7", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]    Compiling heck v0.3.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling syn v0.15.18
[INFO] [stderr]     Checking regex v1.0.6
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking i3ipc v0.9.0
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking i3-workspace-groups v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.20s
[INFO] running `Command { std: "docker" "inspect" "372922aaf4710acf59139a88b4da06b9bf6cbe24399077aeeb8c5d749e0768f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "372922aaf4710acf59139a88b4da06b9bf6cbe24399077aeeb8c5d749e0768f7", kill_on_drop: false }`
[INFO] [stdout] 372922aaf4710acf59139a88b4da06b9bf6cbe24399077aeeb8c5d749e0768f7