[INFO] cloning repository https://github.com/Natsu-B/mutex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Natsu-B/mutex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNatsu-B%2Fmutex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNatsu-B%2Fmutex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e74abf7039981178f689a6c498be2fea40f6f70
[INFO] checking Natsu-B/mutex against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNatsu-B%2Fmutex" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Natsu-B/mutex
[INFO] finished tweaking git repo https://github.com/Natsu-B/mutex
[INFO] tweaked toml for git repo https://github.com/Natsu-B/mutex written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Natsu-B/mutex on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Natsu-B/mutex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fe67427dea35ef3b0e6b554879595393983ccbf5afb5605e72d468386272443
[INFO] running `Command { std: "docker" "start" "-a" "0fe67427dea35ef3b0e6b554879595393983ccbf5afb5605e72d468386272443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe67427dea35ef3b0e6b554879595393983ccbf5afb5605e72d468386272443", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe67427dea35ef3b0e6b554879595393983ccbf5afb5605e72d468386272443", kill_on_drop: false }`
[INFO] [stdout] 0fe67427dea35ef3b0e6b554879595393983ccbf5afb5605e72d468386272443
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51dab6bd8b8490156e2c33c3f4e2b775cc5fec24c0ee987b9f50039f921c901b
[INFO] running `Command { std: "docker" "start" "-a" "51dab6bd8b8490156e2c33c3f4e2b775cc5fec24c0ee987b9f50039f921c901b", kill_on_drop: false }`
[INFO] [stderr]     Checking mutex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `cell::SyncUnsafeCell`
[INFO] [stdout]  --> src/main.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::SyncUnsafeCell, sync::atomic::AtomicUsize, thread, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `disable_raw_atomics` is never used
[INFO] [stdout]   --> src/mutex.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn disable_raw_atomics() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITE_FLAG` is never used
[INFO] [stdout]   --> src/mutex.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 | const WRITE_FLAG: usize = 1 << (usize::BITS - 1);
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_read_lock_atomic` is never used
[INFO] [stdout]   --> src/mutex.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn rw_read_lock_atomic(state: &AtomicUsize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_read_unlock_atomic` is never used
[INFO] [stdout]    --> src/mutex.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn rw_read_unlock_atomic(state: &AtomicUsize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_write_lock_atomic` is never used
[INFO] [stdout]    --> src/mutex.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn rw_write_lock_atomic(state: &AtomicUsize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_write_unlock_atomic` is never used
[INFO] [stdout]    --> src/mutex.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn rw_write_unlock_atomic(state: &AtomicUsize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `no_lock` is never used
[INFO] [stdout]    --> src/mutex.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl<T> RawSpinLock<T> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 176 |     pub unsafe fn no_lock(&self) -> RawSpinLockGuard<'_, T> {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_locked` is never used
[INFO] [stdout]    --> src/mutex.rs:186:8
[INFO] [stdout]     |
[INFO] [stdout] 185 | impl<T: ?Sized> RawSpinLock<T> {
[INFO] [stdout]     | ------------------------------ method in this implementation
[INFO] [stdout] 186 |     fn is_locked(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `cell::SyncUnsafeCell`
[INFO] [stdout]  --> src/main.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{cell::SyncUnsafeCell, sync::atomic::AtomicUsize, thread, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `disable_raw_atomics` is never used
[INFO] [stdout]   --> src/mutex.rs:38:4
[INFO] [stdout]    |
[INFO] [stdout] 38 | fn disable_raw_atomics() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `WRITE_FLAG` is never used
[INFO] [stdout]   --> src/mutex.rs:60:7
[INFO] [stdout]    |
[INFO] [stdout] 60 | const WRITE_FLAG: usize = 1 << (usize::BITS - 1);
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_read_lock_atomic` is never used
[INFO] [stdout]   --> src/mutex.rs:63:4
[INFO] [stdout]    |
[INFO] [stdout] 63 | fn rw_read_lock_atomic(state: &AtomicUsize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_read_unlock_atomic` is never used
[INFO] [stdout]    --> src/mutex.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn rw_read_unlock_atomic(state: &AtomicUsize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_write_lock_atomic` is never used
[INFO] [stdout]    --> src/mutex.rs:105:4
[INFO] [stdout]     |
[INFO] [stdout] 105 | fn rw_write_lock_atomic(state: &AtomicUsize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `rw_write_unlock_atomic` is never used
[INFO] [stdout]    --> src/mutex.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 | fn rw_write_unlock_atomic(state: &AtomicUsize) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `no_lock` is never used
[INFO] [stdout]    --> src/mutex.rs:176:19
[INFO] [stdout]     |
[INFO] [stdout] 149 | impl<T> RawSpinLock<T> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 176 |     pub unsafe fn no_lock(&self) -> RawSpinLockGuard<'_, T> {
[INFO] [stdout]     |                   ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "51dab6bd8b8490156e2c33c3f4e2b775cc5fec24c0ee987b9f50039f921c901b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51dab6bd8b8490156e2c33c3f4e2b775cc5fec24c0ee987b9f50039f921c901b", kill_on_drop: false }`
[INFO] [stdout] 51dab6bd8b8490156e2c33c3f4e2b775cc5fec24c0ee987b9f50039f921c901b
