[INFO] cloning repository https://github.com/ehariz/Netchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ehariz/Netchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehariz%2FNetchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehariz%2FNetchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99849ce57e2ef7250d3211912c61935783b3f3d7
[INFO] checking ehariz/Netchat against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fehariz%2FNetchat" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ehariz/Netchat 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 git repo https://github.com/ehariz/Netchat
[INFO] finished tweaking git repo https://github.com/ehariz/Netchat
[INFO] tweaked toml for git repo https://github.com/ehariz/Netchat written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ehariz/Netchat 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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 21688b781790888c4c29e57b7e7637a1d13baf97e5e2139b26dd959bc7cc0d37
[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" "21688b781790888c4c29e57b7e7637a1d13baf97e5e2139b26dd959bc7cc0d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21688b781790888c4c29e57b7e7637a1d13baf97e5e2139b26dd959bc7cc0d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21688b781790888c4c29e57b7e7637a1d13baf97e5e2139b26dd959bc7cc0d37", kill_on_drop: false }`
[INFO] [stdout] 21688b781790888c4c29e57b7e7637a1d13baf97e5e2139b26dd959bc7cc0d37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 818bde12d65d4c6067b1b2a216fcefa83f37f930ab7a1af8a69a0fa8c1deb85d
[INFO] running `Command { std: "docker" "start" "-a" "818bde12d65d4c6067b1b2a216fcefa83f37f930ab7a1af8a69a0fa8c1deb85d", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking color-backtrace v0.1.3
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking gag v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]     Checking tui v0.5.0
[INFO] [stderr]    Compiling shrinkwraprs v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking serde v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking netchat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.76s
[INFO] running `Command { std: "docker" "inspect" "818bde12d65d4c6067b1b2a216fcefa83f37f930ab7a1af8a69a0fa8c1deb85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "818bde12d65d4c6067b1b2a216fcefa83f37f930ab7a1af8a69a0fa8c1deb85d", kill_on_drop: false }`
[INFO] [stdout] 818bde12d65d4c6067b1b2a216fcefa83f37f930ab7a1af8a69a0fa8c1deb85d