[INFO] cloning repository https://github.com/JackThomson2/Threadpooler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JackThomson2/Threadpooler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackThomson2%2FThreadpooler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackThomson2%2FThreadpooler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9c59d2d7f1d22f46ca0259367e3b6c388e998982
[INFO] checking JackThomson2/Threadpooler against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJackThomson2%2FThreadpooler" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JackThomson2/Threadpooler on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JackThomson2/Threadpooler
[INFO] finished tweaking git repo https://github.com/JackThomson2/Threadpooler
[INFO] tweaked toml for git repo https://github.com/JackThomson2/Threadpooler written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/JackThomson2/Threadpooler already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/aeyakovenko/rayoff`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded criterion_bencher_compat v0.3.3
[INFO] [stderr]   Downloaded sys-info v0.5.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e287d6b8c2c63107e9b8a50774deda8418a5e67d22889ed7e78a52b67f96a02
[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" "0e287d6b8c2c63107e9b8a50774deda8418a5e67d22889ed7e78a52b67f96a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e287d6b8c2c63107e9b8a50774deda8418a5e67d22889ed7e78a52b67f96a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e287d6b8c2c63107e9b8a50774deda8418a5e67d22889ed7e78a52b67f96a02", kill_on_drop: false }`
[INFO] [stdout] 0e287d6b8c2c63107e9b8a50774deda8418a5e67d22889ed7e78a52b67f96a02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a82fd5b7e5a9e75374595b509416d16d996af89c6b99cb4b0e4bd94a4b8cc74
[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" "0a82fd5b7e5a9e75374595b509416d16d996af89c6b99cb4b0e4bd94a4b8cc74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking oorandom v11.1.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling sys-info v0.5.10
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking crossbeam-utils v0.7.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rayon-core v1.7.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking rayoff v0.1.0 (https://github.com/aeyakovenko/rayoff#a01d3f33)
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking threadpooler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Thread`, `cmp`, `self`
[INFO] [stdout]  --> src/job.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     cmp,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     sync::atomic::{AtomicUsize, Ordering},
[INFO] [stdout] 7 |     thread::{self, Thread},
[INFO] [stdout]   |              ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `message` should have an upper camel case name
[INFO] [stdout]  --> src/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum message {
[INFO] [stdout]   |          ^^^^^^^ help: convert the identifier to upper camel case: `Message`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]   --> src/job.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn execute(&self, num_threads: usize) {
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `greedy_count`
[INFO] [stdout]   --> src/job.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     greedy_count: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `message`
[INFO] [stdout]  --> src/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum message {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `to_test` should have an upper case name
[INFO] [stdout]  --> src/main.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const to_test: usize = 32;
[INFO] [stdout]   |       ^^^^^^^ help: convert the identifier to upper case: `TO_TEST`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         pool.dispatch_mut(&mut array, |val: &mut usize| *val += 1);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rayon v1.3.1
[INFO] [stderr]     Checking bstr v0.2.13
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking criterion_bencher_compat v0.3.3
[INFO] [stdout] warning: unused imports: `Thread`, `cmp`, `self`
[INFO] [stdout]  --> src/job.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     cmp,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 6 |     sync::atomic::{AtomicUsize, Ordering},
[INFO] [stdout] 7 |     thread::{self, Thread},
[INFO] [stdout]   |              ^^^^  ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `message` should have an upper camel case name
[INFO] [stdout]  --> src/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum message {
[INFO] [stdout]   |          ^^^^^^^ help: convert the identifier to upper camel case: `Message`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `to_test` should have an upper case name
[INFO] [stdout]  --> src/main.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const to_test: usize = 32;
[INFO] [stdout]   |       ^^^^^^^ help: convert the identifier to upper case: `TO_TEST`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bench_baseline`
[INFO] [stdout]   --> benches/rayoff.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn bench_baseline(bencher: &mut Bencher) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bench_rayon`
[INFO] [stdout]   --> benches/rayoff.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn bench_rayon(bencher: &mut Bencher) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num_threads`
[INFO] [stdout]   --> src/job.rs:76:27
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn execute(&self, num_threads: usize) {
[INFO] [stdout]    |                           ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_threads`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |         pool.dispatch_mut(&mut array, |val: &mut usize| *val += 1);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `bench_baseline`
[INFO] [stdout]   --> benches/heavywork.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn bench_baseline(bencher: &mut Bencher) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `greedy_count`
[INFO] [stdout]   --> src/job.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     greedy_count: AtomicUsize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `message`
[INFO] [stdout]  --> src/types.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum message {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/pool.rs:93:9
[INFO] [stdout]    |
[INFO] [stdout] 93 |         pool.dispatch_mut(&mut array, |val: &mut usize| *val += 1);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/pool.rs:144:9
[INFO] [stdout]     |
[INFO] [stdout] 144 |         pool.notify_all(job.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/pool.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         pool.notify_all(job.clone());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.10s
[INFO] running `Command { std: "docker" "inspect" "0a82fd5b7e5a9e75374595b509416d16d996af89c6b99cb4b0e4bd94a4b8cc74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a82fd5b7e5a9e75374595b509416d16d996af89c6b99cb4b0e4bd94a4b8cc74", kill_on_drop: false }`
[INFO] [stdout] 0a82fd5b7e5a9e75374595b509416d16d996af89c6b99cb4b0e4bd94a4b8cc74