[INFO] fetching crate piston_meta 2.0.1...
[INFO] checking piston_meta-2.0.1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate piston_meta 2.0.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate piston_meta 2.0.1 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate piston_meta 2.0.1
[INFO] finished tweaking crates.io crate piston_meta 2.0.1
[INFO] tweaked toml for crates.io crate piston_meta 2.0.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate piston_meta 2.0.1 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded range v1.0.0
[INFO] [stderr]   Downloaded read_token v1.0.0
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 13fc84ace2cdd7f48c66e0e9ab18cace7185711de31a12e98e5d8ac1eec203b6
[INFO] running `Command { std: "docker" "start" "-a" "13fc84ace2cdd7f48c66e0e9ab18cace7185711de31a12e98e5d8ac1eec203b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "13fc84ace2cdd7f48c66e0e9ab18cace7185711de31a12e98e5d8ac1eec203b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13fc84ace2cdd7f48c66e0e9ab18cace7185711de31a12e98e5d8ac1eec203b6", kill_on_drop: false }`
[INFO] [stdout] 13fc84ace2cdd7f48c66e0e9ab18cace7185711de31a12e98e5d8ac1eec203b6
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97c92571208efbff7716358c0a7b7c0c9348c085e1f061141aa548db4d0a40de
[INFO] running `Command { std: "docker" "start" "-a" "97c92571208efbff7716358c0a7b7c0c9348c085e1f061141aa548db4d0a40de", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking range v1.0.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking read_token v1.0.0
[INFO] [stderr]     Checking piston_meta v2.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/lib.rs:167:13
[INFO] [stdout]     |
[INFO] [stdout] 167 |     pub use super::*;
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "97c92571208efbff7716358c0a7b7c0c9348c085e1f061141aa548db4d0a40de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97c92571208efbff7716358c0a7b7c0c9348c085e1f061141aa548db4d0a40de", kill_on_drop: false }`
[INFO] [stdout] 97c92571208efbff7716358c0a7b7c0c9348c085e1f061141aa548db4d0a40de