[INFO] cloning repository https://github.com/hazelwiss/maybe_null
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hazelwiss/maybe_null" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhazelwiss%2Fmaybe_null", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhazelwiss%2Fmaybe_null'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26f5e4612e2de2038b049a3256aab0bfeb8221ed
[INFO] checking hazelwiss/maybe_null against try#d8a5ee01b913730aca7ab44c72c8f2722c0533ff for pr-139022
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhazelwiss%2Fmaybe_null" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hazelwiss/maybe_null on toolchain d8a5ee01b913730aca7ab44c72c8f2722c0533ff
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8a5ee01b913730aca7ab44c72c8f2722c0533ff" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hazelwiss/maybe_null
[INFO] finished tweaking git repo https://github.com/hazelwiss/maybe_null
[INFO] tweaked toml for git repo https://github.com/hazelwiss/maybe_null written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/hazelwiss/maybe_null already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d8a5ee01b913730aca7ab44c72c8f2722c0533ff" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+d8a5ee01b913730aca7ab44c72c8f2722c0533ff" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d7f651c7f86529d27c091f3d1a2620cf4dee1d3a644ee13d4765cd994f5a621
[INFO] running `Command { std: "docker" "start" "-a" "4d7f651c7f86529d27c091f3d1a2620cf4dee1d3a644ee13d4765cd994f5a621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d7f651c7f86529d27c091f3d1a2620cf4dee1d3a644ee13d4765cd994f5a621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7f651c7f86529d27c091f3d1a2620cf4dee1d3a644ee13d4765cd994f5a621", kill_on_drop: false }`
[INFO] [stdout] 4d7f651c7f86529d27c091f3d1a2620cf4dee1d3a644ee13d4765cd994f5a621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+d8a5ee01b913730aca7ab44c72c8f2722c0533ff" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 052d3dcff0e034532d173f5738eb3cc64e37a0695a94471f111cc117508f1f55
[INFO] running `Command { std: "docker" "start" "-a" "052d3dcff0e034532d173f5738eb3cc64e37a0695a94471f111cc117508f1f55", kill_on_drop: false }`
[INFO] [stderr]     Checking maybe_null v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "052d3dcff0e034532d173f5738eb3cc64e37a0695a94471f111cc117508f1f55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "052d3dcff0e034532d173f5738eb3cc64e37a0695a94471f111cc117508f1f55", kill_on_drop: false }`
[INFO] [stdout] 052d3dcff0e034532d173f5738eb3cc64e37a0695a94471f111cc117508f1f55