[INFO] fetching crate scc 0.3.11...
[INFO] checking scc-0.3.11 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate scc 0.3.11 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate scc 0.3.11 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scc 0.3.11
[INFO] finished tweaking crates.io crate scc 0.3.11
[INFO] tweaked toml for crates.io crate scc 0.3.11 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "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" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1da6b26eb6bb57f522d9c4901c82799984c31c5bd005797d42cfd9c96f8c84f1
[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" "1da6b26eb6bb57f522d9c4901c82799984c31c5bd005797d42cfd9c96f8c84f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1da6b26eb6bb57f522d9c4901c82799984c31c5bd005797d42cfd9c96f8c84f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1da6b26eb6bb57f522d9c4901c82799984c31c5bd005797d42cfd9c96f8c84f1", kill_on_drop: false }`
[INFO] [stdout] 1da6b26eb6bb57f522d9c4901c82799984c31c5bd005797d42cfd9c96f8c84f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d839f6c2cf9b08cfa03089f87be1b25cde475ef5f4fae0ea039c9a382361d0f
[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" "9d839f6c2cf9b08cfa03089f87be1b25cde475ef5f4fae0ea039c9a382361d0f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking scc v0.3.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]    --> src/treeindex/leaf.rs:253:12
[INFO] [stdout]     |
[INFO] [stdout] 253 |     pub fn from(&self, metadata: u64, key: &K, exact: bool) -> (usize, *const (K, V)) {
[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: `from_min_greater_equal`
[INFO] [stdout]    --> src/treeindex/leaf.rs:289:12
[INFO] [stdout]     |
[INFO] [stdout] 289 |     pub fn from_min_greater_equal(&self, metadata: u64, key: &K) -> (usize, *const (K, V)) {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from`
[INFO] [stdout]    --> src/treeindex/leaf.rs:634:12
[INFO] [stdout]     |
[INFO] [stdout] 634 |     pub fn from(key: &K, leaf: &'a Leaf<K, V>) -> LeafScanner<'a, K, V> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_greater_equal`
[INFO] [stdout]    --> src/treeindex/leaf.rs:645:12
[INFO] [stdout]     |
[INFO] [stdout] 645 |     pub fn from_greater_equal(key: &K, leaf: &'a Leaf<K, V>) -> LeafScanner<'a, K, V> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print`
[INFO] [stdout]     --> src/treeindex/node.rs:1386:8
[INFO] [stdout]      |
[INFO] [stdout] 1386 |     fn print(&self) -> usize {
[INFO] [stdout]      |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.35s
[INFO] running `Command { std: "docker" "inspect" "9d839f6c2cf9b08cfa03089f87be1b25cde475ef5f4fae0ea039c9a382361d0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d839f6c2cf9b08cfa03089f87be1b25cde475ef5f4fae0ea039c9a382361d0f", kill_on_drop: false }`
[INFO] [stdout] 9d839f6c2cf9b08cfa03089f87be1b25cde475ef5f4fae0ea039c9a382361d0f