[INFO] fetching crate unsafe_example 0.3.3...
[INFO] building unsafe_example-0.3.3 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate unsafe_example 0.3.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate unsafe_example 0.3.3
[INFO] finished tweaking crates.io crate unsafe_example 0.3.3
[INFO] tweaked toml for crates.io crate unsafe_example 0.3.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unsafe_example 0.3.3 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 unsafe_example 0.3.3 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]     Blocking waiting for file lock on package cache
[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] 772628382fec411f45845c06e871d6aed0bb689ff95d7fca535b2fcc9eb3824e
[INFO] running `Command { std: "docker" "start" "-a" "772628382fec411f45845c06e871d6aed0bb689ff95d7fca535b2fcc9eb3824e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "772628382fec411f45845c06e871d6aed0bb689ff95d7fca535b2fcc9eb3824e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "772628382fec411f45845c06e871d6aed0bb689ff95d7fca535b2fcc9eb3824e", kill_on_drop: false }`
[INFO] [stdout] 772628382fec411f45845c06e871d6aed0bb689ff95d7fca535b2fcc9eb3824e
[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] 05c04159c87522f01095fc2c3893c07411f9f6a358a578f960182b5c1308bd79
[INFO] running `Command { std: "docker" "start" "-a" "05c04159c87522f01095fc2c3893c07411f9f6a358a578f960182b5c1308bd79", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe_example v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `index_3` is never used
[INFO] [stdout]   --> src/lib.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[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 0.14s
[INFO] running `Command { std: "docker" "inspect" "05c04159c87522f01095fc2c3893c07411f9f6a358a578f960182b5c1308bd79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05c04159c87522f01095fc2c3893c07411f9f6a358a578f960182b5c1308bd79", kill_on_drop: false }`
[INFO] [stdout] 05c04159c87522f01095fc2c3893c07411f9f6a358a578f960182b5c1308bd79
[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] 2824e388679ecc78857410ed27e00ed7624f180dcbc473fbe5f1296b6d5ff8b3
[INFO] running `Command { std: "docker" "start" "-a" "2824e388679ecc78857410ed27e00ed7624f180dcbc473fbe5f1296b6d5ff8b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsafe_example v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `index_3` is never used
[INFO] [stdout]   --> src/lib.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[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 `index_3` is never used
[INFO] [stdout]   --> src/lib.rs:46:11
[INFO] [stdout]    |
[INFO] [stdout] 46 | unsafe fn index_3(idx: usize, arr: &[u8]) -> Option<u8>
[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 0.11s
[INFO] running `Command { std: "docker" "inspect" "2824e388679ecc78857410ed27e00ed7624f180dcbc473fbe5f1296b6d5ff8b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2824e388679ecc78857410ed27e00ed7624f180dcbc473fbe5f1296b6d5ff8b3", kill_on_drop: false }`
[INFO] [stdout] 2824e388679ecc78857410ed27e00ed7624f180dcbc473fbe5f1296b6d5ff8b3