[INFO] cloning repository https://github.com/wattlebirdaz/optimistic_read
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wattlebirdaz/optimistic_read" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3ca4f51895c4ab1ed3200b3fd50eeca86582ea3
[INFO] checking wattlebirdaz/optimistic_read against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wattlebirdaz/optimistic_read on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wattlebirdaz/optimistic_read
[INFO] finished tweaking git repo https://github.com/wattlebirdaz/optimistic_read
[INFO] tweaked toml for git repo https://github.com/wattlebirdaz/optimistic_read written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wattlebirdaz/optimistic_read 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 551320f26bd795da599a9c788924745eaa1db9c93ef7f92639218a8c8356a1a9
[INFO] running `Command { std: "docker" "start" "-a" "551320f26bd795da599a9c788924745eaa1db9c93ef7f92639218a8c8356a1a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "551320f26bd795da599a9c788924745eaa1db9c93ef7f92639218a8c8356a1a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "551320f26bd795da599a9c788924745eaa1db9c93ef7f92639218a8c8356a1a9", kill_on_drop: false }`
[INFO] [stdout] 551320f26bd795da599a9c788924745eaa1db9c93ef7f92639218a8c8356a1a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e67fd831b2716417f9c0193383d260270cf94b8ced8544862c665d45a079b793
[INFO] running `Command { std: "docker" "start" "-a" "e67fd831b2716417f9c0193383d260270cf94b8ced8544862c665d45a079b793", kill_on_drop: false }`
[INFO] [stderr]     Checking optimistic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `optimistic::optimistic_lock::OptimisticLock`
[INFO] [stdout]  --> src/bin/benchmark.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use optimistic::optimistic_lock::OptimisticLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `optimistic::optimistic_lock::OptimisticLock`
[INFO] [stdout]  --> src/bin/benchmark.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use optimistic::optimistic_lock::OptimisticLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e67fd831b2716417f9c0193383d260270cf94b8ced8544862c665d45a079b793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e67fd831b2716417f9c0193383d260270cf94b8ced8544862c665d45a079b793", kill_on_drop: false }`
[INFO] [stdout] e67fd831b2716417f9c0193383d260270cf94b8ced8544862c665d45a079b793
[INFO] checking wattlebirdaz/optimistic_read against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwattlebirdaz%2Foptimistic_read" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wattlebirdaz/optimistic_read on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wattlebirdaz/optimistic_read
[INFO] finished tweaking git repo https://github.com/wattlebirdaz/optimistic_read
[INFO] tweaked toml for git repo https://github.com/wattlebirdaz/optimistic_read written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wattlebirdaz/optimistic_read 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 610d0b2f6c8e92a1cc099cd0c29adb312f4bb41ca90b61ef97a4a81e5fe00688
[INFO] running `Command { std: "docker" "start" "-a" "610d0b2f6c8e92a1cc099cd0c29adb312f4bb41ca90b61ef97a4a81e5fe00688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "610d0b2f6c8e92a1cc099cd0c29adb312f4bb41ca90b61ef97a4a81e5fe00688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610d0b2f6c8e92a1cc099cd0c29adb312f4bb41ca90b61ef97a4a81e5fe00688", kill_on_drop: false }`
[INFO] [stdout] 610d0b2f6c8e92a1cc099cd0c29adb312f4bb41ca90b61ef97a4a81e5fe00688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05eeb034ab8a08d05f7ba1c85ffe7026f8b9426788c6499e525be1a794956f76
[INFO] running `Command { std: "docker" "start" "-a" "05eeb034ab8a08d05f7ba1c85ffe7026f8b9426788c6499e525be1a794956f76", kill_on_drop: false }`
[INFO] [stderr]     Checking optimistic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `optimistic::optimistic_lock::OptimisticLock`
[INFO] [stdout]  --> src/bin/benchmark.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use optimistic::optimistic_lock::OptimisticLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `optimistic::optimistic_lock::OptimisticLock`
[INFO] [stdout]  --> src/bin/benchmark.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use optimistic::optimistic_lock::OptimisticLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "05eeb034ab8a08d05f7ba1c85ffe7026f8b9426788c6499e525be1a794956f76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05eeb034ab8a08d05f7ba1c85ffe7026f8b9426788c6499e525be1a794956f76", kill_on_drop: false }`
[INFO] [stdout] 05eeb034ab8a08d05f7ba1c85ffe7026f8b9426788c6499e525be1a794956f76