[INFO] fetching crate tp-allocator 2.1.2...
[INFO] checking tp-allocator-2.1.2 against master#89b9f7b284aacc5f8613438b80e4dd7bdd10549e for pr-92594
[INFO] extracting crate tp-allocator 2.1.2 into /workspace/builds/worker-31/source
[INFO] validating manifest of crates.io crate tp-allocator 2.1.2 on toolchain 89b9f7b284aacc5f8613438b80e4dd7bdd10549e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tp-allocator 2.1.2
[INFO] finished tweaking crates.io crate tp-allocator 2.1.2
[INFO] tweaked toml for crates.io crate tp-allocator 2.1.2 written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 238e281d5f9bc74502c9f3d4fcbb00f965a806e9f70f21a79e104519c0320179
[INFO] running `Command { std: "docker" "start" "-a" "238e281d5f9bc74502c9f3d4fcbb00f965a806e9f70f21a79e104519c0320179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "238e281d5f9bc74502c9f3d4fcbb00f965a806e9f70f21a79e104519c0320179", kill_on_drop: false }`
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[INFO] [stdout] 238e281d5f9bc74502c9f3d4fcbb00f965a806e9f70f21a79e104519c0320179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+89b9f7b284aacc5f8613438b80e4dd7bdd10549e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 413672c2ed41a0ca32137075268d0ef3cf1b113c0724650813239683a46324ce
[INFO] running `Command { std: "docker" "start" "-a" "413672c2ed41a0ca32137075268d0ef3cf1b113c0724650813239683a46324ce", kill_on_drop: false }`
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[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/freeing_bump.rs:476:3
[INFO] [stdout]     |
[INFO] [stdout] 476 |         &mut self[range].copy_from_slice(&bytes[..]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 476 |         let _ = &mut self[range].copy_from_slice(&bytes[..]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/freeing_bump.rs:476:3
[INFO] [stdout]     |
[INFO] [stdout] 476 |         &mut self[range].copy_from_slice(&bytes[..]);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 476 |         let _ = &mut self[range].copy_from_slice(&bytes[..]);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 58s
[INFO] running `Command { std: "docker" "inspect" "413672c2ed41a0ca32137075268d0ef3cf1b113c0724650813239683a46324ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "413672c2ed41a0ca32137075268d0ef3cf1b113c0724650813239683a46324ce", kill_on_drop: false }`
[INFO] [stdout] 413672c2ed41a0ca32137075268d0ef3cf1b113c0724650813239683a46324ce