[INFO] cloning repository https://github.com/samidarko/writing_a_compiler_in_rust_monkey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/samidarko/writing_a_compiler_in_rust_monkey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamidarko%2Fwriting_a_compiler_in_rust_monkey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamidarko%2Fwriting_a_compiler_in_rust_monkey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a24a56948cfe6a79faee8b380628c5b399448928
[INFO] checking samidarko/writing_a_compiler_in_rust_monkey against master#fce0e74720d199eb7839fdb51af35ac5226da178 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamidarko%2Fwriting_a_compiler_in_rust_monkey" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/samidarko/writing_a_compiler_in_rust_monkey
[INFO] finished tweaking git repo https://github.com/samidarko/writing_a_compiler_in_rust_monkey
[INFO] tweaked toml for git repo https://github.com/samidarko/writing_a_compiler_in_rust_monkey written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/samidarko/writing_a_compiler_in_rust_monkey on toolchain fce0e74720d199eb7839fdb51af35ac5226da178
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/samidarko/writing_a_compiler_in_rust_monkey 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" "+fce0e74720d199eb7839fdb51af35ac5226da178" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6339e40a2e2130e3f60500c6d9c943b4a114a6b48ecf18a3429036ba0cc210b0
[INFO] running `Command { std: "docker" "start" "-a" "6339e40a2e2130e3f60500c6d9c943b4a114a6b48ecf18a3429036ba0cc210b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6339e40a2e2130e3f60500c6d9c943b4a114a6b48ecf18a3429036ba0cc210b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6339e40a2e2130e3f60500c6d9c943b4a114a6b48ecf18a3429036ba0cc210b0", kill_on_drop: false }`
[INFO] [stdout] 6339e40a2e2130e3f60500c6d9c943b4a114a6b48ecf18a3429036ba0cc210b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+fce0e74720d199eb7839fdb51af35ac5226da178" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f041b3fa3f140acc1f6a7be1841be26568c1ba78cc11558f3724297ff4a77e3
[INFO] running `Command { std: "docker" "start" "-a" "2f041b3fa3f140acc1f6a7be1841be26568c1ba78cc11558f3724297ff4a77e3", kill_on_drop: false }`
[INFO] [stderr]     Checking writing_a_compiler_in_rust_monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "2f041b3fa3f140acc1f6a7be1841be26568c1ba78cc11558f3724297ff4a77e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f041b3fa3f140acc1f6a7be1841be26568c1ba78cc11558f3724297ff4a77e3", kill_on_drop: false }`
[INFO] [stdout] 2f041b3fa3f140acc1f6a7be1841be26568c1ba78cc11558f3724297ff4a77e3