[INFO] cloning repository https://github.com/kenburcham/rust_tutorials
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kenburcham/rust_tutorials" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenburcham%2Frust_tutorials", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenburcham%2Frust_tutorials'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78fd5731936dc0b033772bc9736fbc1c7aa6cdef
[INFO] checking kenburcham/rust_tutorials against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkenburcham%2Frust_tutorials" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kenburcham/rust_tutorials on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kenburcham/rust_tutorials
[INFO] finished tweaking git repo https://github.com/kenburcham/rust_tutorials
[INFO] tweaked toml for git repo https://github.com/kenburcham/rust_tutorials written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/kenburcham/rust_tutorials already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9ba9a06c7636a57a3a3183608fcfd8b13cd571d33f8d1c76e80f81e313de825
[INFO] running `Command { std: "docker" "start" "-a" "b9ba9a06c7636a57a3a3183608fcfd8b13cd571d33f8d1c76e80f81e313de825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9ba9a06c7636a57a3a3183608fcfd8b13cd571d33f8d1c76e80f81e313de825", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9ba9a06c7636a57a3a3183608fcfd8b13cd571d33f8d1c76e80f81e313de825", kill_on_drop: false }`
[INFO] [stdout] b9ba9a06c7636a57a3a3183608fcfd8b13cd571d33f8d1c76e80f81e313de825
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05482053a1424d4f5c704ff223a95ea4e6a2572f6e0e5e9d62b9569f0799c61b
[INFO] running `Command { std: "docker" "start" "-a" "05482053a1424d4f5c704ff223a95ea4e6a2572f6e0e5e9d62b9569f0799c61b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking guessing_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "05482053a1424d4f5c704ff223a95ea4e6a2572f6e0e5e9d62b9569f0799c61b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05482053a1424d4f5c704ff223a95ea4e6a2572f6e0e5e9d62b9569f0799c61b", kill_on_drop: false }`
[INFO] [stdout] 05482053a1424d4f5c704ff223a95ea4e6a2572f6e0e5e9d62b9569f0799c61b