[INFO] fetching crate ctrlc 3.4.1...
[INFO] checking ctrlc-3.4.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate ctrlc 3.4.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ctrlc 3.4.1 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 crates.io crate ctrlc 3.4.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ctrlc 3.4.1
[INFO] tweaked toml for crates.io crate ctrlc 3.4.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ctrlc 3.4.1 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] bc2ae11f015fb1fd4064fb6bce6cb986c6739553be7710a34e675861da74a7ec
[INFO] running `Command { std: "docker" "start" "-a" "bc2ae11f015fb1fd4064fb6bce6cb986c6739553be7710a34e675861da74a7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc2ae11f015fb1fd4064fb6bce6cb986c6739553be7710a34e675861da74a7ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc2ae11f015fb1fd4064fb6bce6cb986c6739553be7710a34e675861da74a7ec", kill_on_drop: false }`
[INFO] [stdout] bc2ae11f015fb1fd4064fb6bce6cb986c6739553be7710a34e675861da74a7ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] b75ffe71fef552bd5c97955f5bd9a0fa1ac0f844014959a05df17b7c1e428b00
[INFO] running `Command { std: "docker" "start" "-a" "b75ffe71fef552bd5c97955f5bd9a0fa1ac0f844014959a05df17b7c1e428b00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking ctrlc v3.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ctrlc` is imported redundantly
[INFO] [stdout]   --> examples/readme_example.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ctrlc;
[INFO] [stdout]    |     ^^^^^ the item `ctrlc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.52s
[INFO] running `Command { std: "docker" "inspect" "b75ffe71fef552bd5c97955f5bd9a0fa1ac0f844014959a05df17b7c1e428b00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b75ffe71fef552bd5c97955f5bd9a0fa1ac0f844014959a05df17b7c1e428b00", kill_on_drop: false }`
[INFO] [stdout] b75ffe71fef552bd5c97955f5bd9a0fa1ac0f844014959a05df17b7c1e428b00
[INFO] checking ctrlc-3.4.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate ctrlc 3.4.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ctrlc 3.4.1 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 crates.io crate ctrlc 3.4.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ctrlc 3.4.1
[INFO] tweaked toml for crates.io crate ctrlc 3.4.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ctrlc 3.4.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 202f01e9dc5c178d5b6fccd551972eb1e1f6f58324bed353eff287019c6480c8
[INFO] running `Command { std: "docker" "start" "-a" "202f01e9dc5c178d5b6fccd551972eb1e1f6f58324bed353eff287019c6480c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "202f01e9dc5c178d5b6fccd551972eb1e1f6f58324bed353eff287019c6480c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "202f01e9dc5c178d5b6fccd551972eb1e1f6f58324bed353eff287019c6480c8", kill_on_drop: false }`
[INFO] [stdout] 202f01e9dc5c178d5b6fccd551972eb1e1f6f58324bed353eff287019c6480c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] f5645977e3b5566eccb0aa03e982e22f3292f87abbeb1bd4914a5346370f465b
[INFO] running `Command { std: "docker" "start" "-a" "f5645977e3b5566eccb0aa03e982e22f3292f87abbeb1bd4914a5346370f465b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking ctrlc v3.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `ctrlc` is imported redundantly
[INFO] [stdout]   --> examples/readme_example.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use ctrlc;
[INFO] [stdout]    |     ^^^^^ the item `ctrlc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.85s
[INFO] running `Command { std: "docker" "inspect" "f5645977e3b5566eccb0aa03e982e22f3292f87abbeb1bd4914a5346370f465b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5645977e3b5566eccb0aa03e982e22f3292f87abbeb1bd4914a5346370f465b", kill_on_drop: false }`
[INFO] [stdout] f5645977e3b5566eccb0aa03e982e22f3292f87abbeb1bd4914a5346370f465b