[INFO] cloning repository https://github.com/MathewBravo/low-latency-logger
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MathewBravo/low-latency-logger" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMathewBravo%2Flow-latency-logger", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMathewBravo%2Flow-latency-logger'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5aee8565dc7c8431a02e2dc7e31e5d975b493e96
[INFO] testing MathewBravo/low-latency-logger against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMathewBravo%2Flow-latency-logger" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MathewBravo/low-latency-logger on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MathewBravo/low-latency-logger
[INFO] finished tweaking git repo https://github.com/MathewBravo/low-latency-logger
[INFO] tweaked toml for git repo https://github.com/MathewBravo/low-latency-logger written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/MathewBravo/low-latency-logger 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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fe5b072b9905bedc5bb6b0d591a0485603cb6f2eddc3497204ff6c494a52dcf
[INFO] running `Command { std: "docker" "start" "-a" "0fe5b072b9905bedc5bb6b0d591a0485603cb6f2eddc3497204ff6c494a52dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fe5b072b9905bedc5bb6b0d591a0485603cb6f2eddc3497204ff6c494a52dcf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe5b072b9905bedc5bb6b0d591a0485603cb6f2eddc3497204ff6c494a52dcf", kill_on_drop: false }`
[INFO] [stdout] 0fe5b072b9905bedc5bb6b0d591a0485603cb6f2eddc3497204ff6c494a52dcf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4b8274f15247142983e1ef959c5930a237bf18c697f45cd8ee4662f28f34707
[INFO] running `Command { std: "docker" "start" "-a" "e4b8274f15247142983e1ef959c5930a237bf18c697f45cd8ee4662f28f34707", kill_on_drop: false }`
[INFO] [stderr]    Compiling low-latency-logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `LF_Queue` should have an upper camel case name
[INFO] [stdout]  --> src/lf_queue/lf_queue.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LF_Queue<T: Default + Clone> {
[INFO] [stdout]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `LfQueue`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogElement` is never used
[INFO] [stdout]  --> src/log/log.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum LogElement {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOG_QUEUE_SIZE` is never used
[INFO] [stdout]   --> src/log/log.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LOG_QUEUE_SIZE: usize = 8 * 1024 * 1024;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]   --> src/log/log.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Logger {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "e4b8274f15247142983e1ef959c5930a237bf18c697f45cd8ee4662f28f34707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b8274f15247142983e1ef959c5930a237bf18c697f45cd8ee4662f28f34707", kill_on_drop: false }`
[INFO] [stdout] e4b8274f15247142983e1ef959c5930a237bf18c697f45cd8ee4662f28f34707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0183fc019fe0f8364f440942328b7f8eb90e861ecb9657e48487a3f9f132af8c
[INFO] running `Command { std: "docker" "start" "-a" "0183fc019fe0f8364f440942328b7f8eb90e861ecb9657e48487a3f9f132af8c", kill_on_drop: false }`
[INFO] [stderr]    Compiling low-latency-logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `LF_Queue` should have an upper camel case name
[INFO] [stdout]  --> src/lf_queue/lf_queue.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LF_Queue<T: Default + Clone> {
[INFO] [stdout]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `LfQueue`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lf_queue/lf_queue.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     let mut queue_guard = queue_clone.lock().unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogElement` is never used
[INFO] [stdout]  --> src/log/log.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum LogElement {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOG_QUEUE_SIZE` is never used
[INFO] [stdout]   --> src/log/log.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LOG_QUEUE_SIZE: usize = 8 * 1024 * 1024;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]   --> src/log/log.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Logger {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "0183fc019fe0f8364f440942328b7f8eb90e861ecb9657e48487a3f9f132af8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0183fc019fe0f8364f440942328b7f8eb90e861ecb9657e48487a3f9f132af8c", kill_on_drop: false }`
[INFO] [stdout] 0183fc019fe0f8364f440942328b7f8eb90e861ecb9657e48487a3f9f132af8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1162015d414b8a9175689a4df291d49d2ab3b0a615f3bcf3dfe7023a49fe5d75
[INFO] running `Command { std: "docker" "start" "-a" "1162015d414b8a9175689a4df291d49d2ab3b0a615f3bcf3dfe7023a49fe5d75", kill_on_drop: false }`
[INFO] [stderr] warning: type `LF_Queue` should have an upper camel case name
[INFO] [stderr]  --> src/lf_queue/lf_queue.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct LF_Queue<T: Default + Clone> {
[INFO] [stderr]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `LfQueue`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lf_queue/lf_queue.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |                     let mut queue_guard = queue_clone.lock().unwrap();
[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: enum `LogElement` is never used
[INFO] [stderr]  --> src/log/log.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum LogElement {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `LOG_QUEUE_SIZE` is never used
[INFO] [stderr]   --> src/log/log.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const LOG_QUEUE_SIZE: usize = 8 * 1024 * 1024;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Logger` is never constructed
[INFO] [stderr]   --> src/log/log.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Logger {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `low-latency-logger` (bin "low-latency-logger" test) generated 5 warnings (run `cargo fix --bin "low-latency-logger" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/low_latency_logger-0bf43b166cba94dc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lf_queue::lf_queue::tests::test_basic_queue_operations ... ok
[INFO] [stdout] test lf_queue::lf_queue::tests::test_multithreaded_queue_operations ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1162015d414b8a9175689a4df291d49d2ab3b0a615f3bcf3dfe7023a49fe5d75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1162015d414b8a9175689a4df291d49d2ab3b0a615f3bcf3dfe7023a49fe5d75", kill_on_drop: false }`
[INFO] [stdout] 1162015d414b8a9175689a4df291d49d2ab3b0a615f3bcf3dfe7023a49fe5d75
[INFO] testing MathewBravo/low-latency-logger against try#33f1d8bb92813a1bfc23c093c9f443ab09290307 for pr-128400
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMathewBravo%2Flow-latency-logger" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MathewBravo/low-latency-logger on toolchain 33f1d8bb92813a1bfc23c093c9f443ab09290307
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MathewBravo/low-latency-logger
[INFO] finished tweaking git repo https://github.com/MathewBravo/low-latency-logger
[INFO] tweaked toml for git repo https://github.com/MathewBravo/low-latency-logger written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MathewBravo/low-latency-logger 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" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 80fd15333ebd0da395e18fa7825241b70752da71a2cee2f5b1d7333211c4431c
[INFO] running `Command { std: "docker" "start" "-a" "80fd15333ebd0da395e18fa7825241b70752da71a2cee2f5b1d7333211c4431c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "80fd15333ebd0da395e18fa7825241b70752da71a2cee2f5b1d7333211c4431c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80fd15333ebd0da395e18fa7825241b70752da71a2cee2f5b1d7333211c4431c", kill_on_drop: false }`
[INFO] [stdout] 80fd15333ebd0da395e18fa7825241b70752da71a2cee2f5b1d7333211c4431c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1c89ca60c9f5575b2415b71387100f83b05cbbea02352ab9ef9493ad674d9f4
[INFO] running `Command { std: "docker" "start" "-a" "c1c89ca60c9f5575b2415b71387100f83b05cbbea02352ab9ef9493ad674d9f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling low-latency-logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `LF_Queue` should have an upper camel case name
[INFO] [stdout]  --> src/lf_queue/lf_queue.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LF_Queue<T: Default + Clone> {
[INFO] [stdout]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `LfQueue`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogElement` is never used
[INFO] [stdout]  --> src/log/log.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum LogElement {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOG_QUEUE_SIZE` is never used
[INFO] [stdout]   --> src/log/log.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LOG_QUEUE_SIZE: usize = 8 * 1024 * 1024;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]   --> src/log/log.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Logger {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "c1c89ca60c9f5575b2415b71387100f83b05cbbea02352ab9ef9493ad674d9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1c89ca60c9f5575b2415b71387100f83b05cbbea02352ab9ef9493ad674d9f4", kill_on_drop: false }`
[INFO] [stdout] c1c89ca60c9f5575b2415b71387100f83b05cbbea02352ab9ef9493ad674d9f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ffbfee0d980fe17a558d7fc131915e9af409e492fba73ef1e70ca7019183273
[INFO] running `Command { std: "docker" "start" "-a" "8ffbfee0d980fe17a558d7fc131915e9af409e492fba73ef1e70ca7019183273", kill_on_drop: false }`
[INFO] [stderr]    Compiling low-latency-logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `LF_Queue` should have an upper camel case name
[INFO] [stdout]  --> src/lf_queue/lf_queue.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LF_Queue<T: Default + Clone> {
[INFO] [stdout]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `LfQueue`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lf_queue/lf_queue.rs:110:25
[INFO] [stdout]     |
[INFO] [stdout] 110 |                     let mut queue_guard = queue_clone.lock().unwrap();
[INFO] [stdout]     |                         ----^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `LogElement` is never used
[INFO] [stdout]  --> src/log/log.rs:3:10
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum LogElement {
[INFO] [stdout]   |          ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LOG_QUEUE_SIZE` is never used
[INFO] [stdout]   --> src/log/log.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LOG_QUEUE_SIZE: usize = 8 * 1024 * 1024;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Logger` is never constructed
[INFO] [stdout]   --> src/log/log.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct Logger {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "8ffbfee0d980fe17a558d7fc131915e9af409e492fba73ef1e70ca7019183273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ffbfee0d980fe17a558d7fc131915e9af409e492fba73ef1e70ca7019183273", kill_on_drop: false }`
[INFO] [stdout] 8ffbfee0d980fe17a558d7fc131915e9af409e492fba73ef1e70ca7019183273
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+33f1d8bb92813a1bfc23c093c9f443ab09290307" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3f7e09a9dd74652ccbe70d81819fca2f3b6ad3a04b37b50d31d285b97c96dc2d
[INFO] running `Command { std: "docker" "start" "-a" "3f7e09a9dd74652ccbe70d81819fca2f3b6ad3a04b37b50d31d285b97c96dc2d", kill_on_drop: false }`
[INFO] [stderr] warning: type `LF_Queue` should have an upper camel case name
[INFO] [stderr]  --> src/lf_queue/lf_queue.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct LF_Queue<T: Default + Clone> {
[INFO] [stderr]   |            ^^^^^^^^ help: convert the identifier to upper camel case: `LfQueue`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/lf_queue/lf_queue.rs:110:25
[INFO] [stderr]     |
[INFO] [stderr] 110 |                     let mut queue_guard = queue_clone.lock().unwrap();
[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: enum `LogElement` is never used
[INFO] [stderr]  --> src/log/log.rs:3:10
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub enum LogElement {
[INFO] [stderr]   |          ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `LOG_QUEUE_SIZE` is never used
[INFO] [stderr]   --> src/log/log.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 15 | const LOG_QUEUE_SIZE: usize = 8 * 1024 * 1024;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Logger` is never constructed
[INFO] [stderr]   --> src/log/log.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct Logger {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `low-latency-logger` (bin "low-latency-logger" test) generated 5 warnings (run `cargo fix --bin "low-latency-logger" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/low_latency_logger-0bf43b166cba94dc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test lf_queue::lf_queue::tests::test_basic_queue_operations ... ok
[INFO] [stdout] test lf_queue::lf_queue::tests::test_multithreaded_queue_operations has been running for over 60 seconds
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "3f7e09a9dd74652ccbe70d81819fca2f3b6ad3a04b37b50d31d285b97c96dc2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f7e09a9dd74652ccbe70d81819fca2f3b6ad3a04b37b50d31d285b97c96dc2d", kill_on_drop: false }`
[INFO] [stdout] 3f7e09a9dd74652ccbe70d81819fca2f3b6ad3a04b37b50d31d285b97c96dc2d