[INFO] fetching crate burn_dragon_train 0.4.0...
[INFO] checking burn_dragon_train-0.4.0 against master#035b01b794602d5861daa43ac792f372f8981ed7 for 152214-denied
[INFO] extracting crate burn_dragon_train 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate burn_dragon_train 0.4.0
[INFO] finished tweaking crates.io crate burn_dragon_train 0.4.0
[INFO] tweaked toml for crates.io crate burn_dragon_train 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate burn_dragon_train 0.4.0 on toolchain 035b01b794602d5861daa43ac792f372f8981ed7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate burn_dragon_train 0.4.0 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" "+035b01b794602d5861daa43ac792f372f8981ed7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74c38bc762b306268315c6aabbea4b68617edcdeb0dc6b544b10bbc03e3b581a
[INFO] running `Command { std: "docker" "start" "-a" "74c38bc762b306268315c6aabbea4b68617edcdeb0dc6b544b10bbc03e3b581a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74c38bc762b306268315c6aabbea4b68617edcdeb0dc6b544b10bbc03e3b581a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c38bc762b306268315c6aabbea4b68617edcdeb0dc6b544b10bbc03e3b581a", kill_on_drop: false }`
[INFO] [stdout] 74c38bc762b306268315c6aabbea4b68617edcdeb0dc6b544b10bbc03e3b581a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+035b01b794602d5861daa43ac792f372f8981ed7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 702fcbbb9039234e8fbb51ad8cd3f62313cd93bd386ba95b7d1582943c5a5919
[INFO] running `Command { std: "docker" "start" "-a" "702fcbbb9039234e8fbb51ad8cd3f62313cd93bd386ba95b7d1582943c5a5919", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.105
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[INFO] [stderr]     Checking burn_dragon_core v0.4.0
[INFO] [stderr]     Checking burn_dragon_train v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `device_allocation_lock` is never used
[INFO] [stdout]  --> src/device.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn device_allocation_lock() -> &'static Mutex<()> {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `device_allocation_lock` is never used
[INFO] [stdout]  --> src/device.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) fn device_allocation_lock() -> &'static Mutex<()> {
[INFO] [stdout]   |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3m 10s
[INFO] running `Command { std: "docker" "inspect" "702fcbbb9039234e8fbb51ad8cd3f62313cd93bd386ba95b7d1582943c5a5919", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702fcbbb9039234e8fbb51ad8cd3f62313cd93bd386ba95b7d1582943c5a5919", kill_on_drop: false }`
[INFO] [stdout] 702fcbbb9039234e8fbb51ad8cd3f62313cd93bd386ba95b7d1582943c5a5919