[INFO] cloning repository https://github.com/Bruce0203/mutification
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Bruce0203/mutification" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBruce0203%2Fmutification", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBruce0203%2Fmutification'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1cf7050cb262a1f33f51e3f1a5bc4f3c82eb0cf0
[INFO] checking Bruce0203/mutification against try#f77b5bc6c7c84df104f86b0dd01d9490e3923fa8 for pr-147834
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBruce0203%2Fmutification" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Bruce0203/mutification
[INFO] finished tweaking git repo https://github.com/Bruce0203/mutification
[INFO] tweaked toml for git repo https://github.com/Bruce0203/mutification written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Bruce0203/mutification on toolchain f77b5bc6c7c84df104f86b0dd01d9490e3923fa8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Bruce0203/mutification 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" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: /workspace/builds/worker-5-tc2/source/impl/Cargo.toml: unused manifest key: package.author
[INFO] [stderr] warning: /workspace/builds/worker-5-tc2/source/Cargo.toml: unused manifest key: package.author
[INFO] [stderr] warning: /workspace/builds/worker-5-tc2/source/Cargo.toml: unused manifest key: workspace.package.author
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a815a97f13880fed6609feb1faa888dcb1fd5b9a3c13482dd0476882e530585
[INFO] running `Command { std: "docker" "start" "-a" "7a815a97f13880fed6609feb1faa888dcb1fd5b9a3c13482dd0476882e530585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a815a97f13880fed6609feb1faa888dcb1fd5b9a3c13482dd0476882e530585", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a815a97f13880fed6609feb1faa888dcb1fd5b9a3c13482dd0476882e530585", kill_on_drop: false }`
[INFO] [stdout] 7a815a97f13880fed6609feb1faa888dcb1fd5b9a3c13482dd0476882e530585
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f77b5bc6c7c84df104f86b0dd01d9490e3923fa8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a14db4c576a3e6198ab235839fa923f3ec8cba70c40beaa677a0ce5017086859
[INFO] running `Command { std: "docker" "start" "-a" "a14db4c576a3e6198ab235839fa923f3ec8cba70c40beaa677a0ce5017086859", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: package.author
[INFO] [stderr] warning: /opt/rustwide/workdir/Cargo.toml: unused manifest key: workspace.package.author
[INFO] [stderr] warning: /opt/rustwide/workdir/impl/Cargo.toml: unused manifest key: package.author
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]     Checking clap_builder v4.5.8
[INFO] [stderr]     Checking unicode-ident v1.0.12
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.69
[INFO] [stderr]     Checking clap v4.5.8
[INFO] [stderr]     Checking mutification_derive v0.3.0 (/opt/rustwide/workdir/impl)
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]     Checking mutification v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.204
[INFO] [stderr]     Checking serde_json v1.0.120
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] error[E0423]: expected value, found struct `RefCell`
[INFO] [stdout]  --> tests/test2.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     RefCell
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]  --> /rustc/f77b5bc6c7c84df104f86b0dd01d9490e3923fa8/library/core/src/cell.rs:822:1
[INFO] [stdout]   |
[INFO] [stdout]   = note: `RefCell` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mutification` (test "test2") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a14db4c576a3e6198ab235839fa923f3ec8cba70c40beaa677a0ce5017086859", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a14db4c576a3e6198ab235839fa923f3ec8cba70c40beaa677a0ce5017086859", kill_on_drop: false }`
[INFO] [stdout] a14db4c576a3e6198ab235839fa923f3ec8cba70c40beaa677a0ce5017086859
