[INFO] fetching crate unsafe_example 0.3.3...
[INFO] building unsafe_example-0.3.3 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate unsafe_example 0.3.3 into /workspace/builds/worker-7-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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unsafe_example 0.3.3 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 495039d86309495ccd1660432fbb78606029e1a02efd1e168485bbdb7b47a8f2
[INFO] running `Command { std: "docker" "start" "-a" "495039d86309495ccd1660432fbb78606029e1a02efd1e168485bbdb7b47a8f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "495039d86309495ccd1660432fbb78606029e1a02efd1e168485bbdb7b47a8f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "495039d86309495ccd1660432fbb78606029e1a02efd1e168485bbdb7b47a8f2", kill_on_drop: false }`
[INFO] [stdout] 495039d86309495ccd1660432fbb78606029e1a02efd1e168485bbdb7b47a8f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 761d04c62b10c82a07509b069a29b5294d652f9664a1ab81620c4ec2756d088d
[INFO] running `Command { std: "docker" "start" "-a" "761d04c62b10c82a07509b069a29b5294d652f9664a1ab81620c4ec2756d088d", 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 0.52s
[INFO] running `Command { std: "docker" "inspect" "761d04c62b10c82a07509b069a29b5294d652f9664a1ab81620c4ec2756d088d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761d04c62b10c82a07509b069a29b5294d652f9664a1ab81620c4ec2756d088d", kill_on_drop: false }`
[INFO] [stdout] 761d04c62b10c82a07509b069a29b5294d652f9664a1ab81620c4ec2756d088d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09e118ef6ceaeecc64e27a09e3396cb91691d4dceb62fb288d624655d13eb1dd
[INFO] running `Command { std: "docker" "start" "-a" "09e118ef6ceaeecc64e27a09e3396cb91691d4dceb62fb288d624655d13eb1dd", 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 0.49s
[INFO] running `Command { std: "docker" "inspect" "09e118ef6ceaeecc64e27a09e3396cb91691d4dceb62fb288d624655d13eb1dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09e118ef6ceaeecc64e27a09e3396cb91691d4dceb62fb288d624655d13eb1dd", kill_on_drop: false }`
[INFO] [stdout] 09e118ef6ceaeecc64e27a09e3396cb91691d4dceb62fb288d624655d13eb1dd