[INFO] cloning repository https://github.com/mrsekut/WritingAnInterpreterInRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mrsekut/WritingAnInterpreterInRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrsekut%2FWritingAnInterpreterInRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrsekut%2FWritingAnInterpreterInRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47e33ce0c7bf8e097416023bee7b640f9dae80ea
[INFO] testing mrsekut/WritingAnInterpreterInRust/47e33ce0c7bf8e097416023bee7b640f9dae80ea against master#9e297bf54d31eb3b30067208ff9af4416945a2ed for pr-125507
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmrsekut%2FWritingAnInterpreterInRust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mrsekut/WritingAnInterpreterInRust on toolchain 9e297bf54d31eb3b30067208ff9af4416945a2ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mrsekut/WritingAnInterpreterInRust
[INFO] finished tweaking git repo https://github.com/mrsekut/WritingAnInterpreterInRust
[INFO] tweaked toml for git repo https://github.com/mrsekut/WritingAnInterpreterInRust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mrsekut/WritingAnInterpreterInRust 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" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4da2f09022bda2cab4587ab3fc7ecad078c16c616d23f78a93b6205307cbc2af
[INFO] running `Command { std: "docker" "start" "-a" "4da2f09022bda2cab4587ab3fc7ecad078c16c616d23f78a93b6205307cbc2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4da2f09022bda2cab4587ab3fc7ecad078c16c616d23f78a93b6205307cbc2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da2f09022bda2cab4587ab3fc7ecad078c16c616d23f78a93b6205307cbc2af", kill_on_drop: false }`
[INFO] [stdout] 4da2f09022bda2cab4587ab3fc7ecad078c16c616d23f78a93b6205307cbc2af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e634e6a91645043e1ec31d6cc1a5cc66cf1e79c7ee3e2c973376ab4e6a353728
[INFO] running `Command { std: "docker" "start" "-a" "e634e6a91645043e1ec31d6cc1a5cc66cf1e79c7ee3e2c973376ab4e6a353728", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0004]: non-exhaustive patterns: `&_` not covered
[INFO] [stdout]   --> src/lexer/lexer.rs:44:15
[INFO] [stdout]    |
[INFO] [stdout] 44 |         match &*self.ch {
[INFO] [stdout]    |               ^^^^^^^^^ pattern `&_` not covered
[INFO] [stdout]    |
[INFO] [stdout]    = note: the matched value is of type `&str`
[INFO] [stdout]    = note: `&str` cannot be matched exhaustively, so a wildcard `_` is necessary
[INFO] [stdout] help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown
[INFO] [stdout]    |
[INFO] [stdout] 57 ~             },
[INFO] [stdout] 58 +             &_ => todo!()
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0004`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `monkey` (bin "monkey") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e634e6a91645043e1ec31d6cc1a5cc66cf1e79c7ee3e2c973376ab4e6a353728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e634e6a91645043e1ec31d6cc1a5cc66cf1e79c7ee3e2c973376ab4e6a353728", kill_on_drop: false }`
[INFO] [stdout] e634e6a91645043e1ec31d6cc1a5cc66cf1e79c7ee3e2c973376ab4e6a353728