[INFO] fetching crate phc 0.2.0...
[INFO] checking phc-0.2.0 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate phc 0.2.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate phc 0.2.0 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate phc 0.2.0
[INFO] finished tweaking crates.io crate phc 0.2.0
[INFO] tweaked toml for crates.io crate phc 0.2.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58259798b8eed1324a97946bc35933e430fa5e9372db93179e9a4a2eba5e7778
[INFO] running `Command { std: "docker" "start" "-a" "58259798b8eed1324a97946bc35933e430fa5e9372db93179e9a4a2eba5e7778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58259798b8eed1324a97946bc35933e430fa5e9372db93179e9a4a2eba5e7778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58259798b8eed1324a97946bc35933e430fa5e9372db93179e9a4a2eba5e7778", kill_on_drop: false }`
[INFO] [stdout] 58259798b8eed1324a97946bc35933e430fa5e9372db93179e9a4a2eba5e7778
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb76d4adfd880fa3df12d703f4ff4e193fe97c9483c7cb707439c2dfff5ed3a7
[INFO] running `Command { std: "docker" "start" "-a" "fb76d4adfd880fa3df12d703f4ff4e193fe97c9483c7cb707439c2dfff5ed3a7", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` has been stabilized in the 1.31 release and is no longer necessary to be listed in the manifest
[INFO] [stderr]   See https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-edition-field for more information about using this feature.
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking phc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `extract_param_set`
[INFO] [stdout]    --> src/params.rs:143:15
[INFO] [stdout]     |
[INFO] [stdout] 143 | pub(crate) fn extract_param_set<P>(param_set: &P, raw: &[(&str, &str)]) -> Option<P::Params>
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `params`
[INFO] [stdout]    --> src/params.rs:226:13
[INFO] [stdout]     |
[INFO] [stdout] 226 |         let params = param_set!(a: u8, b: u32, c = true, y: &str = "Hello!");
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_params`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `Command { std: "docker" "inspect" "fb76d4adfd880fa3df12d703f4ff4e193fe97c9483c7cb707439c2dfff5ed3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb76d4adfd880fa3df12d703f4ff4e193fe97c9483c7cb707439c2dfff5ed3a7", kill_on_drop: false }`
[INFO] [stdout] fb76d4adfd880fa3df12d703f4ff4e193fe97c9483c7cb707439c2dfff5ed3a7