[INFO] cloning repository https://github.com/nlflint/look_and_say
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nlflint/look_and_say" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c1f39809229642415e57120b04818a82a2daed6
[INFO] checking nlflint/look_and_say against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnlflint%2Flook_and_say" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nlflint/look_and_say on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nlflint/look_and_say
[INFO] finished tweaking git repo https://github.com/nlflint/look_and_say
[INFO] tweaked toml for git repo https://github.com/nlflint/look_and_say written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/nlflint/look_and_say already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 872e9daffdbf0f025f1d1debe777f218dc6fc7b45925eed4e958dff37b667848
[INFO] running `Command { std: "docker" "start" "-a" "872e9daffdbf0f025f1d1debe777f218dc6fc7b45925eed4e958dff37b667848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "872e9daffdbf0f025f1d1debe777f218dc6fc7b45925eed4e958dff37b667848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "872e9daffdbf0f025f1d1debe777f218dc6fc7b45925eed4e958dff37b667848", kill_on_drop: false }`
[INFO] [stdout] 872e9daffdbf0f025f1d1debe777f218dc6fc7b45925eed4e958dff37b667848
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1a8e3d95296b0e2d3f1ce3fc978c3952c8e5fce83f1a834bf4c25c216745b380
[INFO] running `Command { std: "docker" "start" "-a" "1a8e3d95296b0e2d3f1ce3fc978c3952c8e5fce83f1a834bf4c25c216745b380", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Checking look-and-say v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking look-and-say v0.1.0 (/tmp/fixit)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "1a8e3d95296b0e2d3f1ce3fc978c3952c8e5fce83f1a834bf4c25c216745b380", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8e3d95296b0e2d3f1ce3fc978c3952c8e5fce83f1a834bf4c25c216745b380", kill_on_drop: false }`
[INFO] [stdout] 1a8e3d95296b0e2d3f1ce3fc978c3952c8e5fce83f1a834bf4c25c216745b380