[INFO] fetching crate regalloc 0.0.14...
[INFO] checking regalloc-0.0.14 against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087
[INFO] extracting crate regalloc 0.0.14 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate regalloc 0.0.14 on toolchain d939f708d960161d23b964309ba68ff207fc0ead
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate regalloc 0.0.14
[INFO] finished tweaking crates.io crate regalloc 0.0.14
[INFO] tweaked toml for crates.io crate regalloc 0.0.14 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 10509317ab343994681ee44b72b70b1adda81f02f0f39d70d4897f6d2328f17f
[INFO] running `"docker" "start" "-a" "10509317ab343994681ee44b72b70b1adda81f02f0f39d70d4897f6d2328f17f"`
[INFO] [stderr]     Checking regalloc v0.0.14 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `at_use`
[INFO] [stderr]     --> src/data_structures.rs:1179:3
[INFO] [stderr]      |
[INFO] [stderr] 1179 |   pub fn at_use(&self) -> Self {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `show_with_fenv`
[INFO] [stderr]     --> src/data_structures.rs:1384:3
[INFO] [stderr]      |
[INFO] [stderr] 1384 | /   pub fn show_with_fenv(
[INFO] [stderr] 1385 | |     &self, fenv: &TypedIxVec<RangeFragIx, RangeFrag>,
[INFO] [stderr] 1386 | |   ) -> String {
[INFO] [stderr] 1387 | |     let mut frags = TypedIxVec::<RangeFragIx, RangeFrag>::new();
[INFO] [stderr] ...    |
[INFO] [stderr] 1391 | |     format!("(SRFIxs {:?})", &frags)
[INFO] [stderr] 1392 | |   }
[INFO] [stderr]      | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unwrap`
[INFO] [stderr]     --> src/data_structures.rs:1495:3
[INFO] [stderr]      |
[INFO] [stderr] 1495 |   pub fn unwrap(&self) -> f32 {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `at_use`
[INFO] [stderr]     --> src/data_structures.rs:1179:3
[INFO] [stderr]      |
[INFO] [stderr] 1179 |   pub fn at_use(&self) -> Self {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `show_with_fenv`
[INFO] [stderr]     --> src/data_structures.rs:1384:3
[INFO] [stderr]      |
[INFO] [stderr] 1384 | /   pub fn show_with_fenv(
[INFO] [stderr] 1385 | |     &self, fenv: &TypedIxVec<RangeFragIx, RangeFrag>,
[INFO] [stderr] 1386 | |   ) -> String {
[INFO] [stderr] 1387 | |     let mut frags = TypedIxVec::<RangeFragIx, RangeFrag>::new();
[INFO] [stderr] ...    |
[INFO] [stderr] 1391 | |     format!("(SRFIxs {:?})", &frags)
[INFO] [stderr] 1392 | |   }
[INFO] [stderr]      | |___^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `unwrap`
[INFO] [stderr]     --> src/data_structures.rs:1495:3
[INFO] [stderr]      |
[INFO] [stderr] 1495 |   pub fn unwrap(&self) -> f32 {
[INFO] [stderr]      |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.55s
[INFO] running `"docker" "inspect" "10509317ab343994681ee44b72b70b1adda81f02f0f39d70d4897f6d2328f17f"`
[INFO] running `"docker" "rm" "-f" "10509317ab343994681ee44b72b70b1adda81f02f0f39d70d4897f6d2328f17f"`
[INFO] [stdout] 10509317ab343994681ee44b72b70b1adda81f02f0f39d70d4897f6d2328f17f