[INFO] fetching crate pkg-gentoo 0.1.0...
[INFO] checking pkg-gentoo-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate pkg-gentoo 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate pkg-gentoo 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 pkg-gentoo 0.1.0
[INFO] finished tweaking crates.io crate pkg-gentoo 0.1.0
[INFO] tweaked toml for crates.io crate pkg-gentoo 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate pkg-gentoo 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 sedregex v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 1e1612dbfbf8f09b8f6d1f1aed1d0653c2d1e4da3084e8e81cd914aec8427180
[INFO] running `Command { std: "docker" "start" "-a" "1e1612dbfbf8f09b8f6d1f1aed1d0653c2d1e4da3084e8e81cd914aec8427180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e1612dbfbf8f09b8f6d1f1aed1d0653c2d1e4da3084e8e81cd914aec8427180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1612dbfbf8f09b8f6d1f1aed1d0653c2d1e4da3084e8e81cd914aec8427180", kill_on_drop: false }`
[INFO] [stdout] 1e1612dbfbf8f09b8f6d1f1aed1d0653c2d1e4da3084e8e81cd914aec8427180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 555de8f3b7c952b8195e6ec141f38b8efa91b76a916313f76a5f4e79789b25c1
[INFO] running `Command { std: "docker" "start" "-a" "555de8f3b7c952b8195e6ec141f38b8efa91b76a916313f76a5f4e79789b25c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking sedregex v0.2.4
[INFO] [stderr]     Checking pkg-gentoo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/commands.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::prelude::*;
[INFO] [stdout]   |     ------------------- the item `Write` is already imported here
[INFO] [stdout] 5 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Write` is imported redundantly
[INFO] [stdout]  --> src/commands.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::prelude::*;
[INFO] [stdout]   |     ------------------- the item `Write` is already imported here
[INFO] [stdout] 5 | use std::io::{self, Write};
[INFO] [stdout]   |                     ^^^^^
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "555de8f3b7c952b8195e6ec141f38b8efa91b76a916313f76a5f4e79789b25c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "555de8f3b7c952b8195e6ec141f38b8efa91b76a916313f76a5f4e79789b25c1", kill_on_drop: false }`
[INFO] [stdout] 555de8f3b7c952b8195e6ec141f38b8efa91b76a916313f76a5f4e79789b25c1