[INFO] fetching crate libquilt 0.1.1...
[INFO] checking libquilt-0.1.1 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate libquilt 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate libquilt 0.1.1 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate libquilt 0.1.1
[INFO] finished tweaking crates.io crate libquilt 0.1.1
[INFO] tweaked toml for crates.io crate libquilt 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d5d6e3e1b6dda1576f1ebe72e7fe96239d10d4d3385934cdb4c2b20087fe7a54
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d5d6e3e1b6dda1576f1ebe72e7fe96239d10d4d3385934cdb4c2b20087fe7a54"`
[INFO] [stderr]     Checking quilt_diff v0.1.1
[INFO] [stderr]     Checking quilt_graph v0.1.1
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking quilt_multimap v0.1.1
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking quilt_partition v0.1.1
[INFO] [stderr]     Checking libquilt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr] warning: cannot borrow `self.graggles` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/storage.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let old_graggle = &self.graggles[&inode];
[INFO] [stderr]     |                            ------------- immutable borrow occurs here
[INFO] [stderr] 101 |         self.graggles.insert(ret, old_graggle.clone());
[INFO] [stderr]     |         ^^^^^^^^^^^^^             ----------- immutable borrow later used here
[INFO] [stderr]     |         |
[INFO] [stderr]     |         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `is_live`
[INFO] [stderr]    --> src/storage/graggle.rs:523:5
[INFO] [stderr]     |
[INFO] [stderr] 523 |     fn is_live(&self, node: &NodeId) -> bool {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pseudo_edges`
[INFO] [stderr]    --> src/storage/graggle.rs:528:5
[INFO] [stderr]     |
[INFO] [stderr] 528 |     fn pseudo_edges(&self, u: &NodeId) -> HashSet<NodeId> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `assert_consistent`
[INFO] [stderr]    --> src/storage/graggle.rs:555:5
[INFO] [stderr]     |
[INFO] [stderr] 555 |     pub fn assert_consistent(&self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `self.graggles` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/storage.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         let old_graggle = &self.graggles[&inode];
[INFO] [stderr]     |                            ------------- immutable borrow occurs here
[INFO] [stderr] 101 |         self.graggles.insert(ret, old_graggle.clone());
[INFO] [stderr]     |         ^^^^^^^^^^^^^             ----------- immutable borrow later used here
[INFO] [stderr]     |         |
[INFO] [stderr]     |         mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.30s
[INFO] running `"docker" "inspect" "d5d6e3e1b6dda1576f1ebe72e7fe96239d10d4d3385934cdb4c2b20087fe7a54"`
[INFO] running `"docker" "rm" "-f" "d5d6e3e1b6dda1576f1ebe72e7fe96239d10d4d3385934cdb4c2b20087fe7a54"`
[INFO] [stdout] d5d6e3e1b6dda1576f1ebe72e7fe96239d10d4d3385934cdb4c2b20087fe7a54