[INFO] fetching crate r-utils 0.0.0-dev8...
[INFO] checking r-utils-0.0.0-dev8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate r-utils 0.0.0-dev8 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate r-utils 0.0.0-dev8 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 r-utils 0.0.0-dev8
[INFO] finished tweaking crates.io crate r-utils 0.0.0-dev8
[INFO] tweaked toml for crates.io crate r-utils 0.0.0-dev8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate r-utils 0.0.0-dev8 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 qrcodegen v1.8.0
[INFO] [stderr]   Downloaded crc32c v0.6.4
[INFO] [stderr]   Downloaded totp-rs v5.2.0
[INFO] [stderr]   Downloaded aws-sdk-s3 v0.30.0
[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] f64331b4eb8da3c60cf95d903ac5083cda95820b1deb07cfa8ffc093aa0bf23f
[INFO] running `Command { std: "docker" "start" "-a" "f64331b4eb8da3c60cf95d903ac5083cda95820b1deb07cfa8ffc093aa0bf23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f64331b4eb8da3c60cf95d903ac5083cda95820b1deb07cfa8ffc093aa0bf23f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f64331b4eb8da3c60cf95d903ac5083cda95820b1deb07cfa8ffc093aa0bf23f", kill_on_drop: false }`
[INFO] [stdout] f64331b4eb8da3c60cf95d903ac5083cda95820b1deb07cfa8ffc093aa0bf23f
[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] e7391ca3bbc6b983beeca97a8c3f2c00f9676afd1aa4c69cde2cc9d2387457f4
[INFO] running `Command { std: "docker" "start" "-a" "e7391ca3bbc6b983beeca97a8c3f2c00f9676afd1aa4c69cde2cc9d2387457f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]     Checking r-utils v0.0.0-dev8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.59s
[INFO] running `Command { std: "docker" "inspect" "e7391ca3bbc6b983beeca97a8c3f2c00f9676afd1aa4c69cde2cc9d2387457f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7391ca3bbc6b983beeca97a8c3f2c00f9676afd1aa4c69cde2cc9d2387457f4", kill_on_drop: false }`
[INFO] [stdout] e7391ca3bbc6b983beeca97a8c3f2c00f9676afd1aa4c69cde2cc9d2387457f4