[INFO] fetching crate hostfile 0.2.0...
[INFO] checking hostfile-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate hostfile 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate hostfile 0.2.0 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 hostfile 0.2.0
[INFO] finished tweaking crates.io crate hostfile 0.2.0
[INFO] tweaked toml for crates.io crate hostfile 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages
[INFO] [stderr]       Adding mktemp v0.4.1 (latest: v0.5.1)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.8.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[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 mktemp v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 4293c88550b44a8af7e75b5ed6618f49e93bcf5eafde8f9ddc6e87d177a8439b
[INFO] running `Command { std: "docker" "start" "-a" "4293c88550b44a8af7e75b5ed6618f49e93bcf5eafde8f9ddc6e87d177a8439b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4293c88550b44a8af7e75b5ed6618f49e93bcf5eafde8f9ddc6e87d177a8439b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4293c88550b44a8af7e75b5ed6618f49e93bcf5eafde8f9ddc6e87d177a8439b", kill_on_drop: false }`
[INFO] [stdout] 4293c88550b44a8af7e75b5ed6618f49e93bcf5eafde8f9ddc6e87d177a8439b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] c40195e045f91af859a8e9887f945d8023d7a1933ee0b88d0fa1a81c3912f9ef
[INFO] running `Command { std: "docker" "start" "-a" "c40195e045f91af859a8e9887f945d8023d7a1933ee0b88d0fa1a81c3912f9ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking hostfile v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/lib.rs:263:40
[INFO] [stdout]     |
[INFO] [stdout] 263 |               255.255.255.255 broadcast\n\
[INFO] [stdout]     |  ________________________________________^
[INFO] [stdout] 264 | |
[INFO] [stdout] 265 | |             # Comments can really be anywhere\n\
[INFO] [stdout]     | |____________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking mktemp v0.4.1
[INFO] [stdout] warning: multiple lines skipped by escaped newline
[INFO] [stdout]    --> src/lib.rs:263:40
[INFO] [stdout]     |
[INFO] [stdout] 263 |               255.255.255.255 broadcast\n\
[INFO] [stdout]     |  ________________________________________^
[INFO] [stdout] 264 | |
[INFO] [stdout] 265 | |             # Comments can really be anywhere\n\
[INFO] [stdout]     | |____________^ skipping everything up to and including this point
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "c40195e045f91af859a8e9887f945d8023d7a1933ee0b88d0fa1a81c3912f9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c40195e045f91af859a8e9887f945d8023d7a1933ee0b88d0fa1a81c3912f9ef", kill_on_drop: false }`
[INFO] [stdout] c40195e045f91af859a8e9887f945d8023d7a1933ee0b88d0fa1a81c3912f9ef