[INFO] fetching crate pi_cancel_timer 0.2.0...
[INFO] checking pi_cancel_timer-0.2.0 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate pi_cancel_timer 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate pi_cancel_timer 0.2.0 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pi_cancel_timer 0.2.0
[INFO] finished tweaking crates.io crate pi_cancel_timer 0.2.0
[INFO] tweaked toml for crates.io crate pi_cancel_timer 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (available: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pi_slot_deque v0.2.1
[INFO] [stderr]   Downloaded pi_slot_wheel v0.2.0
[INFO] [stderr]   Downloaded pcg_rand v0.13.0
[INFO] [stderr]   Downloaded pi_ext_heap v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc73feefd891a8d77e16dea2d631efff50976c8c34ef1f0820665c16e32f0996
[INFO] running `Command { std: "docker" "start" "-a" "cc73feefd891a8d77e16dea2d631efff50976c8c34ef1f0820665c16e32f0996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc73feefd891a8d77e16dea2d631efff50976c8c34ef1f0820665c16e32f0996", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc73feefd891a8d77e16dea2d631efff50976c8c34ef1f0820665c16e32f0996", kill_on_drop: false }`
[INFO] [stdout] cc73feefd891a8d77e16dea2d631efff50976c8c34ef1f0820665c16e32f0996
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bd0b91a72ee91136f9e6ce71d622e139a20de717fadd1054a4a8922bdb9ff4d
[INFO] running `Command { std: "docker" "start" "-a" "5bd0b91a72ee91136f9e6ce71d622e139a20de717fadd1054a4a8922bdb9ff4d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking pi_ext_heap v0.1.1
[INFO] [stderr]    Compiling slotmap v1.0.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking pi_slot_deque v0.2.1
[INFO] [stderr]     Checking pi_slot_wheel v0.2.0
[INFO] [stderr]     Checking pi_cancel_timer v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]   --> src/lib.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 let loc = self.heap.push(
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking pcg_rand v0.13.0
[INFO] [stdout] warning: unused variable: `loc`
[INFO] [stdout]   --> src/lib.rs:73:21
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 let loc = self.heap.push(
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_loc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 6.07s
[INFO] running `Command { std: "docker" "inspect" "5bd0b91a72ee91136f9e6ce71d622e139a20de717fadd1054a4a8922bdb9ff4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd0b91a72ee91136f9e6ce71d622e139a20de717fadd1054a4a8922bdb9ff4d", kill_on_drop: false }`
[INFO] [stdout] 5bd0b91a72ee91136f9e6ce71d622e139a20de717fadd1054a4a8922bdb9ff4d