[INFO] fetching crate utf8-io 0.4.0...
[INFO] checking utf8-io-0.4.0 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate utf8-io 0.4.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate utf8-io 0.4.0 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate utf8-io 0.4.0
[INFO] finished tweaking crates.io crate utf8-io 0.4.0
[INFO] tweaked toml for crates.io crate utf8-io 0.4.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate utf8-io 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded layered-io v0.4.0
[INFO] [stderr]   Downloaded terminfo v0.7.3
[INFO] [stderr]   Downloaded unsafe-io v0.6.0
[INFO] [stderr]   Downloaded terminal-io v0.3.0
[INFO] [stderr]   Downloaded duplex v0.3.0
[INFO] [stderr]   Downloaded posish v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a567f425a107cfc6bf40a2b7ff2c36d1b97308d2dd5fe0d6666d5ba22f0688f8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a567f425a107cfc6bf40a2b7ff2c36d1b97308d2dd5fe0d6666d5ba22f0688f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a567f425a107cfc6bf40a2b7ff2c36d1b97308d2dd5fe0d6666d5ba22f0688f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a567f425a107cfc6bf40a2b7ff2c36d1b97308d2dd5fe0d6666d5ba22f0688f8", kill_on_drop: false }`
[INFO] [stdout] a567f425a107cfc6bf40a2b7ff2c36d1b97308d2dd5fe0d6666d5ba22f0688f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90e913870b9ea4df11606bcaa268c93ece6a248377b7bcb150c85d6cc6237fdf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "90e913870b9ea4df11606bcaa268c93ece6a248377b7bcb150c85d6cc6237fdf", kill_on_drop: false }`
[INFO] [stderr]     Checking duplex v0.3.0
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling unsafe-io v0.6.0
[INFO] [stderr]    Compiling layered-io v0.4.0
[INFO] [stderr]     Checking utf8-io v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.68s
[INFO] running `Command { std: "docker" "inspect" "90e913870b9ea4df11606bcaa268c93ece6a248377b7bcb150c85d6cc6237fdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90e913870b9ea4df11606bcaa268c93ece6a248377b7bcb150c85d6cc6237fdf", kill_on_drop: false }`
[INFO] [stdout] 90e913870b9ea4df11606bcaa268c93ece6a248377b7bcb150c85d6cc6237fdf