[INFO] fetching crate async-event 0.1.0...
[INFO] checking async-event-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate async-event 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate async-event 0.1.0 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-event 0.1.0
[INFO] finished tweaking crates.io crate async-event 0.1.0
[INFO] tweaked toml for crates.io crate async-event 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate async-event 0.1.0 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot_core v0.9.8
[INFO] [stderr]   Downloaded unicode-ident v1.0.10
[INFO] [stderr]   Downloaded pin-project-lite v0.2.10
[INFO] [stderr]   Downloaded thread_local v1.1.7
[INFO] [stderr]   Downloaded rustversion v1.0.13
[INFO] [stderr]   Downloaded lock_api v0.4.10
[INFO] [stderr]   Downloaded addr2line v0.20.0
[INFO] [stderr]   Downloaded generator v0.7.5
[INFO] [stderr]   Downloaded bytes v1.4.0
[INFO] [stderr]   Downloaded aho-corasick v1.0.2
[INFO] [stderr]   Downloaded regex-syntax v0.7.3
[INFO] [stderr]   Downloaded regex-automata v0.3.2
[INFO] [stderr]   Downloaded tokio v1.29.1
[INFO] [stderr]   Downloaded regex v1.9.1
[INFO] [stderr]   Downloaded gimli v0.27.3
[INFO] [stderr]   Downloaded object v0.31.1
[INFO] [stderr]   Downloaded tracing v0.1.37
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.17
[INFO] [stderr]   Downloaded loom v0.5.6
[INFO] [stderr]   Downloaded backtrace v0.3.68
[INFO] [stderr]   Downloaded mio v0.8.8
[INFO] [stderr]   Downloaded syn v2.0.24
[INFO] [stderr]   Downloaded tracing-attributes v0.1.26
[INFO] [stderr]   Downloaded tracing-core v0.1.31
[INFO] [stderr]   Downloaded hermit-abi v0.3.2
[INFO] [stderr]   Downloaded redox_syscall v0.3.5
[INFO] [stderr]   Downloaded smallvec v1.11.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.64
[INFO] [stderr]   Downloaded quote v1.0.29
[INFO] [stderr]   Downloaded windows v0.48.0
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 63853173d68a8ab8e3b351114ca130a54a4c294f1e1c10f242599ea460a2e889
[INFO] running `Command { std: "docker" "start" "-a" "63853173d68a8ab8e3b351114ca130a54a4c294f1e1c10f242599ea460a2e889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63853173d68a8ab8e3b351114ca130a54a4c294f1e1c10f242599ea460a2e889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63853173d68a8ab8e3b351114ca130a54a4c294f1e1c10f242599ea460a2e889", kill_on_drop: false }`
[INFO] [stdout] 63853173d68a8ab8e3b351114ca130a54a4c294f1e1c10f242599ea460a2e889
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45d11ffc393a29f43966d1f8849d3851292a512721cd4faa21af5c283bda160d
[INFO] running `Command { std: "docker" "start" "-a" "45d11ffc393a29f43966d1f8849d3851292a512721cd4faa21af5c283bda160d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking async-event v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.24
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.35s
[INFO] running `Command { std: "docker" "inspect" "45d11ffc393a29f43966d1f8849d3851292a512721cd4faa21af5c283bda160d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45d11ffc393a29f43966d1f8849d3851292a512721cd4faa21af5c283bda160d", kill_on_drop: false }`
[INFO] [stdout] 45d11ffc393a29f43966d1f8849d3851292a512721cd4faa21af5c283bda160d