[INFO] fetching crate dareto 0.0.0...
[INFO] checking dareto-0.0.0 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate dareto 0.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dareto 0.0.0 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dareto 0.0.0
[INFO] finished tweaking crates.io crate dareto 0.0.0
[INFO] tweaked toml for crates.io crate dareto 0.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate dareto 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 179e37a552fd270f4aed0e0990ed9c63c996dc5037c8ed98b4b7562bce06730f
[INFO] running `Command { std: "docker" "start" "-a" "179e37a552fd270f4aed0e0990ed9c63c996dc5037c8ed98b4b7562bce06730f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "179e37a552fd270f4aed0e0990ed9c63c996dc5037c8ed98b4b7562bce06730f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "179e37a552fd270f4aed0e0990ed9c63c996dc5037c8ed98b4b7562bce06730f", kill_on_drop: false }`
[INFO] [stdout] 179e37a552fd270f4aed0e0990ed9c63c996dc5037c8ed98b4b7562bce06730f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28a659851b6447cc443fff4e40e2672d348e51e24803cdf1385cf0b457e3b7f4
[INFO] running `Command { std: "docker" "start" "-a" "28a659851b6447cc443fff4e40e2672d348e51e24803cdf1385cf0b457e3b7f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking dareto v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "28a659851b6447cc443fff4e40e2672d348e51e24803cdf1385cf0b457e3b7f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28a659851b6447cc443fff4e40e2672d348e51e24803cdf1385cf0b457e3b7f4", kill_on_drop: false }`
[INFO] [stdout] 28a659851b6447cc443fff4e40e2672d348e51e24803cdf1385cf0b457e3b7f4