[INFO] cloning repository https://github.com/reidrankin/substr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reidrankin/substr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidrankin%2Fsubstr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidrankin%2Fsubstr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53b508b40e3540f7630cc83096b2980d9fe908e2
[INFO] checking reidrankin/substr against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidrankin%2Fsubstr" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/reidrankin/substr on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/reidrankin/substr
[INFO] finished tweaking git repo https://github.com/reidrankin/substr
[INFO] tweaked toml for git repo https://github.com/reidrankin/substr written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/reidrankin/substr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.maintenance
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c338cf168a3dc7aa5b0ec878eb9d3936c272341c6d572bbbd64f15d8e6b5d2a
[INFO] running `Command { std: "docker" "start" "-a" "1c338cf168a3dc7aa5b0ec878eb9d3936c272341c6d572bbbd64f15d8e6b5d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c338cf168a3dc7aa5b0ec878eb9d3936c272341c6d572bbbd64f15d8e6b5d2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c338cf168a3dc7aa5b0ec878eb9d3936c272341c6d572bbbd64f15d8e6b5d2a", kill_on_drop: false }`
[INFO] [stdout] 1c338cf168a3dc7aa5b0ec878eb9d3936c272341c6d572bbbd64f15d8e6b5d2a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03cb0c8a4e8221680f24b4238a0f2ef1ab8a7e0cc2792e27d8a291a70ece6ee1
[INFO] running `Command { std: "docker" "start" "-a" "03cb0c8a4e8221680f24b4238a0f2ef1ab8a7e0cc2792e27d8a291a70ece6ee1", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.maintenance
[INFO] [stderr]     Checking substr v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "03cb0c8a4e8221680f24b4238a0f2ef1ab8a7e0cc2792e27d8a291a70ece6ee1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03cb0c8a4e8221680f24b4238a0f2ef1ab8a7e0cc2792e27d8a291a70ece6ee1", kill_on_drop: false }`
[INFO] [stdout] 03cb0c8a4e8221680f24b4238a0f2ef1ab8a7e0cc2792e27d8a291a70ece6ee1