[INFO] cloning repository https://github.com/YahorHr/cha_t_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/YahorHr/cha_t_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYahorHr%2Fcha_t_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYahorHr%2Fcha_t_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65fdd2cad062ba3a1f79d043fc5e79c09269522d
[INFO] checking YahorHr/cha_t_rs against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYahorHr%2Fcha_t_rs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/YahorHr/cha_t_rs on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/YahorHr/cha_t_rs
[INFO] finished tweaking git repo https://github.com/YahorHr/cha_t_rs
[INFO] tweaked toml for git repo https://github.com/YahorHr/cha_t_rs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/YahorHr/cha_t_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", 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] 1dbdf08af0f98a2e09414e64348e4447aee0d7e1d455a4212a52d138c3cfaef9
[INFO] running `Command { std: "docker" "start" "-a" "1dbdf08af0f98a2e09414e64348e4447aee0d7e1d455a4212a52d138c3cfaef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dbdf08af0f98a2e09414e64348e4447aee0d7e1d455a4212a52d138c3cfaef9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dbdf08af0f98a2e09414e64348e4447aee0d7e1d455a4212a52d138c3cfaef9", kill_on_drop: false }`
[INFO] [stdout] 1dbdf08af0f98a2e09414e64348e4447aee0d7e1d455a4212a52d138c3cfaef9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c701cec7e47883cc8ddd26739bb4acc9a48b6f18eeeadecb1fbc74a8a36f499e
[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" "c701cec7e47883cc8ddd26739bb4acc9a48b6f18eeeadecb1fbc74a8a36f499e", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking cha_t_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.53s
[INFO] running `Command { std: "docker" "inspect" "c701cec7e47883cc8ddd26739bb4acc9a48b6f18eeeadecb1fbc74a8a36f499e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c701cec7e47883cc8ddd26739bb4acc9a48b6f18eeeadecb1fbc74a8a36f499e", kill_on_drop: false }`
[INFO] [stdout] c701cec7e47883cc8ddd26739bb4acc9a48b6f18eeeadecb1fbc74a8a36f499e