[INFO] updating cached repository https://github.com/Iorveth/ParallelAlgorithms
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 56a6c4cf10f9f55a7fd2d3703c023dcf77900710
[INFO] checking Iorveth/ParallelAlgorithms against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIorveth%2FParallelAlgorithms" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Iorveth/ParallelAlgorithms on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Iorveth/ParallelAlgorithms
[INFO] finished tweaking git repo https://github.com/Iorveth/ParallelAlgorithms
[INFO] tweaked toml for git repo https://github.com/Iorveth/ParallelAlgorithms written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Iorveth/ParallelAlgorithms already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 15b2846406793f1dde44626863eb7c4c662bbff8253ab408cc52c1d6d23bb654
[INFO] running `"docker" "start" "-a" "15b2846406793f1dde44626863eb7c4c662bbff8253ab408cc52c1d6d23bb654"`
[INFO] [stderr]     Checking ParallelAlgorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `eating_philosophers::eating_philosophers_run`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use eating_philosophers::eating_philosophers_run;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `readers_writers::readers_writers_run`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use readers_writers::readers_writers_run;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `readers_writers::Priority`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use readers_writers::Priority;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `eating_philosophers::eating_philosophers_run`
[INFO] [stderr]  --> src/main.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use eating_philosophers::eating_philosophers_run;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `readers_writers::readers_writers_run`
[INFO] [stderr]  --> src/main.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use readers_writers::readers_writers_run;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `readers_writers::Priority`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use readers_writers::Priority;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/readers_writers.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             _ => unreachable!(),
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/readers_writers.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             _ => unreachable!(),
[INFO] [stderr]    |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/readers_writers.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |             _ => unreachable!(),
[INFO] [stderr]    |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/sleeping_dresser.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/eating_philosophers.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut forks: [AtomicBool; 5] = [
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/eating_philosophers.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut handles: Vec<_> = philosophers
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/readers_writers.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let mut write = self.write_lock.write().unwrap();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/readers_writers.rs:63:13
[INFO] [stderr]    |
[INFO] [stderr] 63 |             _ => unreachable!(),
[INFO] [stderr]    |             ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/readers_writers.rs:78:13
[INFO] [stderr]    |
[INFO] [stderr] 78 |             _ => unreachable!(),
[INFO] [stderr]    |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/readers_writers.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |             _ => unreachable!(),
[INFO] [stderr]    |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/sleeping_dresser.rs:35:17
[INFO] [stderr]    |
[INFO] [stderr] 35 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/readers_writers.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut readers_writers = ReadersWriters::new(readers_count, writers_count, priority);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Philosopher`
[INFO] [stderr]  --> src/eating_philosophers.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Philosopher {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/eating_philosophers.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(name: String, left_hand: u8, right_hand: u8) -> Philosopher {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `eat`
[INFO] [stderr]   --> src/eating_philosophers.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn eat(&self, forks: &[AtomicBool; 5]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `init`
[INFO] [stderr]   --> src/eating_philosophers.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn init() -> (Arc<[AtomicBool; 5]>, Vec<Philosopher>) {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eating_philosophers_run`
[INFO] [stderr]   --> src/eating_philosophers.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn eating_philosophers_run() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Priority`
[INFO] [stderr]  --> src/readers_writers.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Priority {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ReadersWriters`
[INFO] [stderr]   --> src/readers_writers.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct ReadersWriters {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/readers_writers.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn new(readers_count: usize, writers_count: usize, priority: Priority) -> Arc<ReadersWriters> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_readers_count`
[INFO] [stderr]   --> src/readers_writers.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn get_readers_count(&self) -> &AtomicUsize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_writers_count`
[INFO] [stderr]   --> src/readers_writers.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn get_writers_count(&self) -> &AtomicUsize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/readers_writers.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn read(&self, i: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/readers_writers.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn write(&self, i: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `readers_writers_run`
[INFO] [stderr]   --> src/readers_writers.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn readers_writers_run(readers_count: usize, writers_count: usize, priority: Priority) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ParallelAlgorithms` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `parallel_algorithms`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/eating_philosophers.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |     let mut forks: [AtomicBool; 5] = [
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/eating_philosophers.rs:61:9
[INFO] [stderr]    |
[INFO] [stderr] 61 |     let mut handles: Vec<_> = philosophers
[INFO] [stderr]    |         ----^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/readers_writers.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |         let mut write = self.write_lock.write().unwrap();
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/readers_writers.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |     let mut readers_writers = ReadersWriters::new(readers_count, writers_count, priority);
[INFO] [stderr]    |         ----^^^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Philosopher`
[INFO] [stderr]  --> src/eating_philosophers.rs:7:12
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub struct Philosopher {
[INFO] [stderr]   |            ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/eating_philosophers.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     fn new(name: String, left_hand: u8, right_hand: u8) -> Philosopher {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `eat`
[INFO] [stderr]   --> src/eating_philosophers.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn eat(&self, forks: &[AtomicBool; 5]) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `init`
[INFO] [stderr]   --> src/eating_philosophers.rs:38:4
[INFO] [stderr]    |
[INFO] [stderr] 38 | fn init() -> (Arc<[AtomicBool; 5]>, Vec<Philosopher>) {
[INFO] [stderr]    |    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eating_philosophers_run`
[INFO] [stderr]   --> src/eating_philosophers.rs:59:8
[INFO] [stderr]    |
[INFO] [stderr] 59 | pub fn eating_philosophers_run() {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Priority`
[INFO] [stderr]  --> src/readers_writers.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub enum Priority {
[INFO] [stderr]   |          ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `ReadersWriters`
[INFO] [stderr]   --> src/readers_writers.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct ReadersWriters {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/readers_writers.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn new(readers_count: usize, writers_count: usize, priority: Priority) -> Arc<ReadersWriters> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_readers_count`
[INFO] [stderr]   --> src/readers_writers.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     fn get_readers_count(&self) -> &AtomicUsize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_writers_count`
[INFO] [stderr]   --> src/readers_writers.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     fn get_writers_count(&self) -> &AtomicUsize {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `read`
[INFO] [stderr]   --> src/readers_writers.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn read(&self, i: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `write`
[INFO] [stderr]   --> src/readers_writers.rs:67:5
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn write(&self, i: usize) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `readers_writers_run`
[INFO] [stderr]   --> src/readers_writers.rs:98:8
[INFO] [stderr]    |
[INFO] [stderr] 98 | pub fn readers_writers_run(readers_count: usize, writers_count: usize, priority: Priority) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: crate `ParallelAlgorithms` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `parallel_algorithms`
[INFO] [stderr] 
[INFO] [stderr] warning: 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.54s
[INFO] running `"docker" "inspect" "15b2846406793f1dde44626863eb7c4c662bbff8253ab408cc52c1d6d23bb654"`
[INFO] running `"docker" "rm" "-f" "15b2846406793f1dde44626863eb7c4c662bbff8253ab408cc52c1d6d23bb654"`
[INFO] [stdout] 15b2846406793f1dde44626863eb7c4c662bbff8253ab408cc52c1d6d23bb654