[INFO] fetching crate libquilt 0.1.1...
[INFO] checking libquilt-0.1.1 against beta-2020-07-24 for pr-75494-beta
[INFO] extracting crate libquilt 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate libquilt 0.1.1 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 89da086f4be0735690f11deebfaae0441ef9143dbd2424d1567be81b5f38f11a
[INFO] running `Command { std: "docker" "start" "-a" "89da086f4be0735690f11deebfaae0441ef9143dbd2424d1567be81b5f38f11a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89da086f4be0735690f11deebfaae0441ef9143dbd2424d1567be81b5f38f11a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89da086f4be0735690f11deebfaae0441ef9143dbd2424d1567be81b5f38f11a", kill_on_drop: false }`
[INFO] [stdout] 89da086f4be0735690f11deebfaae0441ef9143dbd2424d1567be81b5f38f11a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3058081318b0499df2c4d93d094912f27edabe5c4cfc02c2544b2c26ba9b332e
[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" "3058081318b0499df2c4d93d094912f27edabe5c4cfc02c2544b2c26ba9b332e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking quilt_diff v0.1.1
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking pretty_assertions v0.5.1
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking quilt_graph v0.1.1
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking quilt_multimap v0.1.1
[INFO] [stderr]     Checking quilt_partition v0.1.1
[INFO] [stderr]     Checking libquilt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `self.graggles` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/storage.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let old_graggle = &self.graggles[&inode];
[INFO] [stdout]     |                            ------------- immutable borrow occurs here
[INFO] [stdout] 101 |         self.graggles.insert(ret, old_graggle.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^             ----------- immutable borrow later used here
[INFO] [stdout]     |         |
[INFO] [stdout]     |         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `self.graggles` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/storage.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 100 |         let old_graggle = &self.graggles[&inode];
[INFO] [stdout]     |                            ------------- immutable borrow occurs here
[INFO] [stdout] 101 |         self.graggles.insert(ret, old_graggle.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^             ----------- immutable borrow later used here
[INFO] [stdout]     |         |
[INFO] [stdout]     |         mutable borrow occurs here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_live`
[INFO] [stdout]    --> src/storage/graggle.rs:523:8
[INFO] [stdout]     |
[INFO] [stdout] 523 |     fn is_live(&self, node: &NodeId) -> bool {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pseudo_edges`
[INFO] [stdout]    --> src/storage/graggle.rs:528:8
[INFO] [stdout]     |
[INFO] [stdout] 528 |     fn pseudo_edges(&self, u: &NodeId) -> HashSet<NodeId> {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `assert_consistent`
[INFO] [stdout]    --> src/storage/graggle.rs:555:12
[INFO] [stdout]     |
[INFO] [stdout] 555 |     pub fn assert_consistent(&self) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 51.41s
[INFO] running `Command { std: "docker" "inspect" "3058081318b0499df2c4d93d094912f27edabe5c4cfc02c2544b2c26ba9b332e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3058081318b0499df2c4d93d094912f27edabe5c4cfc02c2544b2c26ba9b332e", kill_on_drop: false }`
[INFO] [stdout] 3058081318b0499df2c4d93d094912f27edabe5c4cfc02c2544b2c26ba9b332e
