[INFO] cloning repository https://github.com/mpnri/grep-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mpnri/grep-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpnri%2Fgrep-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpnri%2Fgrep-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de2ba698a6f7ccc3f971ade8bac7ed5870bc45cb
[INFO] checking mpnri/grep-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpnri%2Fgrep-rust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mpnri/grep-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mpnri/grep-rust
[INFO] finished tweaking git repo https://github.com/mpnri/grep-rust
[INFO] tweaked toml for git repo https://github.com/mpnri/grep-rust written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mpnri/grep-rust 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded is-terminal v0.4.8
[INFO] [stderr]   Downloaded clap_builder v4.3.10
[INFO] [stderr]   Downloaded clap v4.3.10
[INFO] [stderr]   Downloaded rustix v0.38.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1433f81a0ba2a3761a0b7177aefcc10422a4a098407dda39c947084ab4862ce4
[INFO] running `Command { std: "docker" "start" "-a" "1433f81a0ba2a3761a0b7177aefcc10422a4a098407dda39c947084ab4862ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1433f81a0ba2a3761a0b7177aefcc10422a4a098407dda39c947084ab4862ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1433f81a0ba2a3761a0b7177aefcc10422a4a098407dda39c947084ab4862ce4", kill_on_drop: false }`
[INFO] [stdout] 1433f81a0ba2a3761a0b7177aefcc10422a4a098407dda39c947084ab4862ce4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bafc0f02bb0c2c78d55e2dd5db9257a2442575c1fa5513637e6d591c5a310469
[INFO] running `Command { std: "docker" "start" "-a" "bafc0f02bb0c2c78d55e2dd5db9257a2442575c1fa5513637e6d591c5a310469", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.1
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking is-terminal v0.4.8
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking clap_builder v4.3.10
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking clap v4.3.10
[INFO] [stderr]     Checking grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.45s
[INFO] running `Command { std: "docker" "inspect" "bafc0f02bb0c2c78d55e2dd5db9257a2442575c1fa5513637e6d591c5a310469", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bafc0f02bb0c2c78d55e2dd5db9257a2442575c1fa5513637e6d591c5a310469", kill_on_drop: false }`
[INFO] [stdout] bafc0f02bb0c2c78d55e2dd5db9257a2442575c1fa5513637e6d591c5a310469
[INFO] checking mpnri/grep-rust against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpnri%2Fgrep-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mpnri/grep-rust on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mpnri/grep-rust
[INFO] finished tweaking git repo https://github.com/mpnri/grep-rust
[INFO] tweaked toml for git repo https://github.com/mpnri/grep-rust written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mpnri/grep-rust 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cbabc3d5f800787e43877604a1a3b4148b68fe54b0d98fbbb085041234ae13a9
[INFO] running `Command { std: "docker" "start" "-a" "cbabc3d5f800787e43877604a1a3b4148b68fe54b0d98fbbb085041234ae13a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbabc3d5f800787e43877604a1a3b4148b68fe54b0d98fbbb085041234ae13a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbabc3d5f800787e43877604a1a3b4148b68fe54b0d98fbbb085041234ae13a9", kill_on_drop: false }`
[INFO] [stdout] cbabc3d5f800787e43877604a1a3b4148b68fe54b0d98fbbb085041234ae13a9
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23e7800cd0444382b0ecb89e64ae99a2e85c09dc30381eac07be0975a7608c1f
[INFO] running `Command { std: "docker" "start" "-a" "23e7800cd0444382b0ecb89e64ae99a2e85c09dc30381eac07be0975a7608c1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.1
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]     Checking sharded-slab v0.1.4
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]    Compiling eyre v0.6.8
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking indenter v0.3.3
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking tracing-subscriber v0.3.17
[INFO] [stderr]     Checking tracing-error v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking color-spantrace v0.2.0
[INFO] [stderr]     Checking is-terminal v0.4.8
[INFO] [stderr]     Checking anstream v0.3.2
[INFO] [stderr]     Checking color-eyre v0.6.2
[INFO] [stderr]     Checking clap_builder v4.3.10
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking clap v4.3.10
[INFO] [stderr]     Checking grep v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.59s
[INFO] running `Command { std: "docker" "inspect" "23e7800cd0444382b0ecb89e64ae99a2e85c09dc30381eac07be0975a7608c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23e7800cd0444382b0ecb89e64ae99a2e85c09dc30381eac07be0975a7608c1f", kill_on_drop: false }`
[INFO] [stdout] 23e7800cd0444382b0ecb89e64ae99a2e85c09dc30381eac07be0975a7608c1f