[INFO] fetching crate phc 0.2.0...
[INFO] checking phc-0.2.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate phc 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate phc 0.2.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", 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-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66e8ba6baa16d9f8b672170f6680b4cefdb92dd9f74d6fb263a7d24901e7e760
[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" "66e8ba6baa16d9f8b672170f6680b4cefdb92dd9f74d6fb263a7d24901e7e760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66e8ba6baa16d9f8b672170f6680b4cefdb92dd9f74d6fb263a7d24901e7e760", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66e8ba6baa16d9f8b672170f6680b4cefdb92dd9f74d6fb263a7d24901e7e760", kill_on_drop: false }`
[INFO] [stdout] 66e8ba6baa16d9f8b672170f6680b4cefdb92dd9f74d6fb263a7d24901e7e760
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05b7ab61f26dc466494cb9997cceae4f95932db5ecfa6a960bf3b7d9edccd0e5
[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" "05b7ab61f26dc466494cb9997cceae4f95932db5ecfa6a960bf3b7d9edccd0e5", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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: 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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "05b7ab61f26dc466494cb9997cceae4f95932db5ecfa6a960bf3b7d9edccd0e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05b7ab61f26dc466494cb9997cceae4f95932db5ecfa6a960bf3b7d9edccd0e5", kill_on_drop: false }`
[INFO] [stdout] 05b7ab61f26dc466494cb9997cceae4f95932db5ecfa6a960bf3b7d9edccd0e5