[INFO] cloning repository https://github.com/learning-on-chip/mina
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/learning-on-chip/mina" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearning-on-chip%2Fmina", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearning-on-chip%2Fmina'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9fbecbe50c50987d7e31d3b726d91c7f670c1d5
[INFO] checking learning-on-chip/mina against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flearning-on-chip%2Fmina" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/learning-on-chip/mina 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/learning-on-chip/mina
[INFO] finished tweaking git repo https://github.com/learning-on-chip/mina
[INFO] tweaked toml for git repo https://github.com/learning-on-chip/mina written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/learning-on-chip/mina 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded special v0.8.1
[INFO] [stderr]   Downloaded probability v0.17.0
[INFO] [stderr]   Downloaded fractal v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 257228ba23ce85e54a36114add41cb4ccaa849ef71cea2453bfd6c8169270087
[INFO] running `Command { std: "docker" "start" "-a" "257228ba23ce85e54a36114add41cb4ccaa849ef71cea2453bfd6c8169270087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "257228ba23ce85e54a36114add41cb4ccaa849ef71cea2453bfd6c8169270087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "257228ba23ce85e54a36114add41cb4ccaa849ef71cea2453bfd6c8169270087", kill_on_drop: false }`
[INFO] [stdout] 257228ba23ce85e54a36114add41cb4ccaa849ef71cea2453bfd6c8169270087
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5c5c14d895a2c1deda57ad228cc19a4b43ac732c5a3c1030282c703c8e5a48b3
[INFO] running `Command { std: "docker" "start" "-a" "5c5c14d895a2c1deda57ad228cc19a4b43ac732c5a3c1030282c703c8e5a48b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking random v0.12.2
[INFO] [stderr]     Checking statistics v0.4.1
[INFO] [stderr]     Checking options v0.5.1
[INFO] [stderr]     Checking arguments v0.6.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking probability v0.17.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking dwt v0.5.2
[INFO] [stderr]     Checking fractal v0.7.1
[INFO] [stderr]     Checking mina v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.65s
[INFO] running `Command { std: "docker" "inspect" "5c5c14d895a2c1deda57ad228cc19a4b43ac732c5a3c1030282c703c8e5a48b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c5c14d895a2c1deda57ad228cc19a4b43ac732c5a3c1030282c703c8e5a48b3", kill_on_drop: false }`
[INFO] [stdout] 5c5c14d895a2c1deda57ad228cc19a4b43ac732c5a3c1030282c703c8e5a48b3