[INFO] fetching crate folklore 0.8.0...
[INFO] checking folklore-0.8.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate folklore 0.8.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate folklore 0.8.0
[INFO] finished tweaking crates.io crate folklore 0.8.0
[INFO] tweaked toml for crates.io crate folklore 0.8.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate folklore 0.8.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 96 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[INFO] [stderr]       Adding hash32 v0.3.1 (available: v1.0.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leapfrog v0.3.2
[INFO] [stderr]   Downloaded fixedstr v0.5.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cf5acb2a5c7bba13c20c53da8525daa22dd5089968338d6009189e6bb188246
[INFO] running `Command { std: "docker" "start" "-a" "3cf5acb2a5c7bba13c20c53da8525daa22dd5089968338d6009189e6bb188246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cf5acb2a5c7bba13c20c53da8525daa22dd5089968338d6009189e6bb188246", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf5acb2a5c7bba13c20c53da8525daa22dd5089968338d6009189e6bb188246", kill_on_drop: false }`
[INFO] [stdout] 3cf5acb2a5c7bba13c20c53da8525daa22dd5089968338d6009189e6bb188246
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf04d55eadd89308c41189dfd305b76c169da72bee28087a5e4da1331eaeba5c
[INFO] running `Command { std: "docker" "start" "-a" "cf04d55eadd89308c41189dfd305b76c169da72bee28087a5e4da1331eaeba5c", kill_on_drop: false }`
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]     Checking atomic v0.5.3
[INFO] [stderr]     Checking atomic v0.6.1
[INFO] [stderr]     Checking fixedstr v0.5.9
[INFO] [stderr]     Checking folklore v0.8.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `index_to_slice` is never used
[INFO] [stdout]    --> src/array.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout]  70 | impl<T> ConcurrentArena<T> {
[INFO] [stdout]     | -------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn index_to_slice(&self, index: usize) -> *mut [u8] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `allocate` is never used
[INFO] [stdout]   --> src/util.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn allocate<T>(count: usize) -> *mut T {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking leapfrog v0.3.2
[INFO] [stdout] warning: unused import: `rayon::prelude`
[INFO] [stdout]  --> src/test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rayon::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `index_to_slice` is never used
[INFO] [stdout]    --> src/array.rs:116:8
[INFO] [stdout]     |
[INFO] [stdout]  70 | impl<T> ConcurrentArena<T> {
[INFO] [stdout]     | -------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 116 |     fn index_to_slice(&self, index: usize) -> *mut [u8] {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `allocate` is never used
[INFO] [stdout]   --> src/util.rs:52:8
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub fn allocate<T>(count: usize) -> *mut T {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "cf04d55eadd89308c41189dfd305b76c169da72bee28087a5e4da1331eaeba5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf04d55eadd89308c41189dfd305b76c169da72bee28087a5e4da1331eaeba5c", kill_on_drop: false }`
[INFO] [stdout] cf04d55eadd89308c41189dfd305b76c169da72bee28087a5e4da1331eaeba5c