[INFO] fetching crate sarlacc 0.1.4...
[INFO] building sarlacc-0.1.4 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate sarlacc 0.1.4 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate sarlacc 0.1.4
[INFO] finished tweaking crates.io crate sarlacc 0.1.4
[INFO] tweaked toml for crates.io crate sarlacc 0.1.4 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sarlacc 0.1.4 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sarlacc 0.1.4 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stats_alloc v0.1.10
[INFO] [stderr]   Downloaded append-only-vec v0.1.7
[INFO] [stderr]   Downloaded internment v0.8.6
[INFO] [stderr]   Downloaded memorable-wordlist v0.1.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 947f05a3f74ef58059d17bc632017178f85f6495d5682e3cdc9d1b58706b9073
[INFO] running `Command { std: "docker" "start" "-a" "947f05a3f74ef58059d17bc632017178f85f6495d5682e3cdc9d1b58706b9073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "947f05a3f74ef58059d17bc632017178f85f6495d5682e3cdc9d1b58706b9073", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "947f05a3f74ef58059d17bc632017178f85f6495d5682e3cdc9d1b58706b9073", kill_on_drop: false }`
[INFO] [stdout] 947f05a3f74ef58059d17bc632017178f85f6495d5682e3cdc9d1b58706b9073
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c3625cb6014fe2f98183ab31f64c1bb74ead36e18904cb4278c1e5be1e420494
[INFO] running `Command { std: "docker" "start" "-a" "c3625cb6014fe2f98183ab31f64c1bb74ead36e18904cb4278c1e5be1e420494", kill_on_drop: false }`
[INFO] [stderr]    Compiling seize v0.5.0
[INFO] [stderr]    Compiling sarlacc v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]   --> src/arena/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     iter,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "c3625cb6014fe2f98183ab31f64c1bb74ead36e18904cb4278c1e5be1e420494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3625cb6014fe2f98183ab31f64c1bb74ead36e18904cb4278c1e5be1e420494", kill_on_drop: false }`
[INFO] [stdout] c3625cb6014fe2f98183ab31f64c1bb74ead36e18904cb4278c1e5be1e420494
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fe74e38669cc215c6f44d0386e395f09d5c0761897a753f211724f8bb331e87
[INFO] running `Command { std: "docker" "start" "-a" "0fe74e38669cc215c6f44d0386e395f09d5c0761897a753f211724f8bb331e87", kill_on_drop: false }`
[INFO] [stderr]    Compiling stats_alloc v0.1.10
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]   --> src/arena/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     iter,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sarlacc v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]   --> src/arena/mod.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     iter,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::System`
[INFO] [stdout]    --> src/arena/mod.rs:738:15
[INFO] [stdout]     |
[INFO] [stdout] 738 |     use std::{alloc::System, path::PathBuf, ptr, sync::Arc, thread};
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `INSTRUMENTED_SYSTEM`, `Region`, and `StatsAlloc`
[INFO] [stdout]    --> src/arena/mod.rs:740:23
[INFO] [stdout]     |
[INFO] [stdout] 740 |     use stats_alloc::{INSTRUMENTED_SYSTEM, Region, StatsAlloc};
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `measure_memory_usage` is never used
[INFO] [stdout]    --> src/arena/mod.rs:963:8
[INFO] [stdout]     |
[INFO] [stdout] 963 |     fn measure_memory_usage() {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "0fe74e38669cc215c6f44d0386e395f09d5c0761897a753f211724f8bb331e87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe74e38669cc215c6f44d0386e395f09d5c0761897a753f211724f8bb331e87", kill_on_drop: false }`
[INFO] [stdout] 0fe74e38669cc215c6f44d0386e395f09d5c0761897a753f211724f8bb331e87