[INFO] fetching crate f2q 0.3.0...
[INFO] checking f2q-0.3.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate f2q 0.3.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate f2q 0.3.0 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 f2q 0.3.0
[INFO] finished tweaking crates.io crate f2q 0.3.0
[INFO] tweaked toml for crates.io crate f2q 0.3.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate f2q 0.3.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_yaml v0.9.25
[INFO] [stderr]   Downloaded rustix v0.38.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b739d65f7053c4283ccf3187eeac71eb44333c37408777afd5da8ee7d053095c
[INFO] running `Command { std: "docker" "start" "-a" "b739d65f7053c4283ccf3187eeac71eb44333c37408777afd5da8ee7d053095c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b739d65f7053c4283ccf3187eeac71eb44333c37408777afd5da8ee7d053095c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b739d65f7053c4283ccf3187eeac71eb44333c37408777afd5da8ee7d053095c", kill_on_drop: false }`
[INFO] [stdout] b739d65f7053c4283ccf3187eeac71eb44333c37408777afd5da8ee7d053095c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 31bb7928e569f396b7c9497da1c75cfe9414c421729c6b4b42619ac183c70fbd
[INFO] running `Command { std: "docker" "start" "-a" "31bb7928e569f396b7c9497da1c75cfe9414c421729c6b4b42619ac183c70fbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.68
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling crossbeam-utils v0.8.16
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling rustix v0.38.20
[INFO] [stderr]     Checking hashbrown v0.14.2
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking linux-raw-sys v0.4.10
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking indexmap v2.0.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.15
[INFO] [stderr]    Compiling rayon-core v1.12.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking winnow v0.5.17
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking unsafe-libyaml v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking termcolor v1.3.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rayon v1.8.0
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling clap_derive v4.4.2
[INFO] [stderr]     Checking clap v4.4.6
[INFO] [stderr]     Checking serde v1.0.188
[INFO] [stderr]     Checking serde_spanned v0.6.3
[INFO] [stderr]     Checking toml_datetime v0.6.3
[INFO] [stderr]     Checking serde_json v1.0.107
[INFO] [stderr]     Checking serde_yaml v0.9.25
[INFO] [stderr]     Checking toml_edit v0.20.2
[INFO] [stderr]     Checking toml v0.8.2
[INFO] [stderr]     Checking f2q v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.99s
[INFO] running `Command { std: "docker" "inspect" "31bb7928e569f396b7c9497da1c75cfe9414c421729c6b4b42619ac183c70fbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31bb7928e569f396b7c9497da1c75cfe9414c421729c6b4b42619ac183c70fbd", kill_on_drop: false }`
[INFO] [stdout] 31bb7928e569f396b7c9497da1c75cfe9414c421729c6b4b42619ac183c70fbd