[INFO] fetching crate stitches 0.1.0...
[INFO] checking stitches-0.1.0 against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] extracting crate stitches 0.1.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stitches 0.1.0 on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stitches 0.1.0
[INFO] finished tweaking crates.io crate stitches 0.1.0
[INFO] tweaked toml for crates.io crate stitches 0.1.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d6ac31076ad86f946f71bc761bfb93fec5c874dc08f279ef8e41ea956a0a420
[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" "8d6ac31076ad86f946f71bc761bfb93fec5c874dc08f279ef8e41ea956a0a420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d6ac31076ad86f946f71bc761bfb93fec5c874dc08f279ef8e41ea956a0a420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d6ac31076ad86f946f71bc761bfb93fec5c874dc08f279ef8e41ea956a0a420", kill_on_drop: false }`
[INFO] [stdout] 8d6ac31076ad86f946f71bc761bfb93fec5c874dc08f279ef8e41ea956a0a420
[INFO] running `Command { std: "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" "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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 4eebbb70c615693a00c977e89b34c6a0a2803b3a8e569f352a792f200db53610
[INFO] running `Command { std: "docker" "start" "-a" "4eebbb70c615693a00c977e89b34c6a0a2803b3a8e569f352a792f200db53610", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking stitches v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tree_search.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn initial(&self) -> Box<Iterator<Item = Self::Candidate>>;
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Candidate>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tree_search.rs:9:67
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn following<'s>(&'s self, candidate: Self::Candidate) -> Box<Iterator<Item = Self::Candidate> + 's>;
[INFO] [stdout]   |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Candidate> + 's`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tree_search.rs:7:30
[INFO] [stdout]   |
[INFO] [stdout] 7 |     fn initial(&self) -> Box<Iterator<Item = Self::Candidate>>;
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Candidate>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/tree_search.rs:9:67
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn following<'s>(&'s self, candidate: Self::Candidate) -> Box<Iterator<Item = Self::Candidate> + 's>;
[INFO] [stdout]   |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Self::Candidate> + 's`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `outer_len`
[INFO] [stdout]   --> src/fast_deque.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn outer_len(&self) -> usize {
[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: `len`
[INFO] [stdout]   --> src/fast_deque.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/fast_deque.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn get(&self, mut index: usize) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_head`
[INFO] [stdout]   --> src/fast_deque.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn peek_head(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter`
[INFO] [stdout]   --> src/fast_deque.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn iter(&self) -> impl Iterator<Item = &T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `outer_len`
[INFO] [stdout]   --> src/fast_deque.rs:36:12
[INFO] [stdout]    |
[INFO] [stdout] 36 |     pub fn outer_len(&self) -> usize {
[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: `len`
[INFO] [stdout]   --> src/fast_deque.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get`
[INFO] [stdout]   --> src/fast_deque.rs:44:12
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub fn get(&self, mut index: usize) -> Option<&T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `peek_head`
[INFO] [stdout]   --> src/fast_deque.rs:63:12
[INFO] [stdout]    |
[INFO] [stdout] 63 |     pub fn peek_head(&self) -> Option<&T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter`
[INFO] [stdout]   --> src/fast_deque.rs:67:12
[INFO] [stdout]    |
[INFO] [stdout] 67 |     pub fn iter(&self) -> impl Iterator<Item = &T> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.14s
[INFO] running `Command { std: "docker" "inspect" "4eebbb70c615693a00c977e89b34c6a0a2803b3a8e569f352a792f200db53610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4eebbb70c615693a00c977e89b34c6a0a2803b3a8e569f352a792f200db53610", kill_on_drop: false }`
[INFO] [stdout] 4eebbb70c615693a00c977e89b34c6a0a2803b3a8e569f352a792f200db53610