[INFO] cloning repository https://github.com/markheramis/File-Watcher-Basic-Experiment
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/markheramis/File-Watcher-Basic-Experiment" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkheramis%2FFile-Watcher-Basic-Experiment", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkheramis%2FFile-Watcher-Basic-Experiment'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06f087caf2ab9e72c1ca34e52d57cbaa51284de2
[INFO] checking markheramis/File-Watcher-Basic-Experiment against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkheramis%2FFile-Watcher-Basic-Experiment" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/markheramis/File-Watcher-Basic-Experiment 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/markheramis/File-Watcher-Basic-Experiment
[INFO] finished tweaking git repo https://github.com/markheramis/File-Watcher-Basic-Experiment
[INFO] tweaked toml for git repo https://github.com/markheramis/File-Watcher-Basic-Experiment written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/markheramis/File-Watcher-Basic-Experiment 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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecbbfad7d223bae7d51dd4c8dc44aea1a1206c75f0fdd2305ca393f2bd3452e2
[INFO] running `Command { std: "docker" "start" "-a" "ecbbfad7d223bae7d51dd4c8dc44aea1a1206c75f0fdd2305ca393f2bd3452e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecbbfad7d223bae7d51dd4c8dc44aea1a1206c75f0fdd2305ca393f2bd3452e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecbbfad7d223bae7d51dd4c8dc44aea1a1206c75f0fdd2305ca393f2bd3452e2", kill_on_drop: false }`
[INFO] [stdout] ecbbfad7d223bae7d51dd4c8dc44aea1a1206c75f0fdd2305ca393f2bd3452e2
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a1bed81dba57922b7cc32ee0146f5680c8778724afbc41a9772744d56533b23
[INFO] running `Command { std: "docker" "start" "-a" "3a1bed81dba57922b7cc32ee0146f5680c8778724afbc41a9772744d56533b23", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking notify v6.1.1
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stderr]     Checking file_watcher_basic_experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "3a1bed81dba57922b7cc32ee0146f5680c8778724afbc41a9772744d56533b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a1bed81dba57922b7cc32ee0146f5680c8778724afbc41a9772744d56533b23", kill_on_drop: false }`
[INFO] [stdout] 3a1bed81dba57922b7cc32ee0146f5680c8778724afbc41a9772744d56533b23
[INFO] checking markheramis/File-Watcher-Basic-Experiment against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmarkheramis%2FFile-Watcher-Basic-Experiment" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/markheramis/File-Watcher-Basic-Experiment 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/markheramis/File-Watcher-Basic-Experiment
[INFO] finished tweaking git repo https://github.com/markheramis/File-Watcher-Basic-Experiment
[INFO] tweaked toml for git repo https://github.com/markheramis/File-Watcher-Basic-Experiment written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/markheramis/File-Watcher-Basic-Experiment 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9060694336dd7c8d158957c8c5ee2cefad074c0a9dd1b13d8879bc6468dcdf8b
[INFO] running `Command { std: "docker" "start" "-a" "9060694336dd7c8d158957c8c5ee2cefad074c0a9dd1b13d8879bc6468dcdf8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9060694336dd7c8d158957c8c5ee2cefad074c0a9dd1b13d8879bc6468dcdf8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9060694336dd7c8d158957c8c5ee2cefad074c0a9dd1b13d8879bc6468dcdf8b", kill_on_drop: false }`
[INFO] [stdout] 9060694336dd7c8d158957c8c5ee2cefad074c0a9dd1b13d8879bc6468dcdf8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f6a3096f68808f2b35fb914a39f24358c0ab726af132f4aa4e4fa7f1c961a942
[INFO] running `Command { std: "docker" "start" "-a" "f6a3096f68808f2b35fb914a39f24358c0ab726af132f4aa4e4fa7f1c961a942", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking crossbeam-channel v0.5.12
[INFO] [stderr]     Checking notify v6.1.1
[INFO] [stderr]     Checking ctrlc v3.4.4
[INFO] [stderr]     Checking file_watcher_basic_experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.09s
[INFO] running `Command { std: "docker" "inspect" "f6a3096f68808f2b35fb914a39f24358c0ab726af132f4aa4e4fa7f1c961a942", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6a3096f68808f2b35fb914a39f24358c0ab726af132f4aa4e4fa7f1c961a942", kill_on_drop: false }`
[INFO] [stdout] f6a3096f68808f2b35fb914a39f24358c0ab726af132f4aa4e4fa7f1c961a942