[INFO] cloning repository https://github.com/arekfu/random-chains
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arekfu/random-chains" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farekfu%2Frandom-chains", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farekfu%2Frandom-chains'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94562153b2fd210f549f4912ed789373f33fd7c0
[INFO] checking arekfu/random-chains against try#575650af7d7ca88602df28e39d27bf3e456c306e for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farekfu%2Frandom-chains" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arekfu/random-chains on toolchain 575650af7d7ca88602df28e39d27bf3e456c306e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arekfu/random-chains
[INFO] finished tweaking git repo https://github.com/arekfu/random-chains
[INFO] tweaked toml for git repo https://github.com/arekfu/random-chains written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/arekfu/random-chains already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+575650af7d7ca88602df28e39d27bf3e456c306e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_float_eq v1.1.3
[INFO] [stderr]   Downloaded c_vec v1.0.12
[INFO] [stderr]   Downloaded GSL v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+575650af7d7ca88602df28e39d27bf3e456c306e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3da38ccda6c513749bbf0957d666e9806b6cd1bfc4215cc50f53e75519cdbff7
[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" "3da38ccda6c513749bbf0957d666e9806b6cd1bfc4215cc50f53e75519cdbff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3da38ccda6c513749bbf0957d666e9806b6cd1bfc4215cc50f53e75519cdbff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3da38ccda6c513749bbf0957d666e9806b6cd1bfc4215cc50f53e75519cdbff7", kill_on_drop: false }`
[INFO] [stdout] 3da38ccda6c513749bbf0957d666e9806b6cd1bfc4215cc50f53e75519cdbff7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+575650af7d7ca88602df28e39d27bf3e456c306e" "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] 65476df16b62dd95cf5441279b2ca254d0f7aaa8de1ca00434d1e0651d07d0d8
[INFO] running `Command { std: "docker" "start" "-a" "65476df16b62dd95cf5441279b2ca254d0f7aaa8de1ca00434d1e0651d07d0d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking c_vec v1.0.12
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking assert_float_eq v1.1.3
[INFO] [stderr]    Compiling GSL v1.1.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking random-chains v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.74s
[INFO] running `Command { std: "docker" "inspect" "65476df16b62dd95cf5441279b2ca254d0f7aaa8de1ca00434d1e0651d07d0d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65476df16b62dd95cf5441279b2ca254d0f7aaa8de1ca00434d1e0651d07d0d8", kill_on_drop: false }`
[INFO] [stdout] 65476df16b62dd95cf5441279b2ca254d0f7aaa8de1ca00434d1e0651d07d0d8