[INFO] fetching crate ufe_abe 0.0.4...
[INFO] building ufe_abe-0.0.4 against master#461e8078010433ff7de2db2aaae8a3cfb0847215 for pr-94962
[INFO] extracting crate ufe_abe 0.0.4 into /workspace/builds/worker-44/source
[INFO] validating manifest of crates.io crate ufe_abe 0.0.4 on toolchain 461e8078010433ff7de2db2aaae8a3cfb0847215
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufe_abe 0.0.4
[INFO] finished tweaking crates.io crate ufe_abe 0.0.4
[INFO] tweaked toml for crates.io crate ufe_abe 0.0.4 written to /workspace/builds/worker-44/source/Cargo.toml
[INFO] crate crates.io crate ufe_abe 0.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 5808f8d72cd8cad4c66ab372ad30147a2599f6ca8a465fed67d25db21644069e
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[INFO] [stderr]    Compiling ufe_abe v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `timestamp_period`
[INFO] [stdout]    --> src/main.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let timestamp_period = queue.get_timestamp_period();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp_period`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/main.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let start = Instant::now();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end_power`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     end_power: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Configuration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(StructOpt, Debug)]
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_power_two_sizes`
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn get_power_two_sizes(max_power: u32) -> Vec<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.31s
[INFO] running `Command { std: "docker" "inspect" "5808f8d72cd8cad4c66ab372ad30147a2599f6ca8a465fed67d25db21644069e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5808f8d72cd8cad4c66ab372ad30147a2599f6ca8a465fed67d25db21644069e", kill_on_drop: false }`
[INFO] [stdout] 5808f8d72cd8cad4c66ab372ad30147a2599f6ca8a465fed67d25db21644069e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-44/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@sha256:1ede1414886370302e694df474b9877c02906499f04c196936ce0973d30c5eaa" "/opt/rustwide/cargo-home/bin/cargo" "+461e8078010433ff7de2db2aaae8a3cfb0847215" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe3ea557683f56bf0787bd1d8e2f7edb622d3a89b6226fb3fd8df3166bb31427
[INFO] running `Command { std: "docker" "start" "-a" "fe3ea557683f56bf0787bd1d8e2f7edb622d3a89b6226fb3fd8df3166bb31427", kill_on_drop: false }`
[INFO] [stderr]    Compiling ufe_abe v0.0.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `timestamp_period`
[INFO] [stdout]    --> src/main.rs:140:9
[INFO] [stdout]     |
[INFO] [stdout] 140 |     let timestamp_period = queue.get_timestamp_period();
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_timestamp_period`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/main.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let start = Instant::now();
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `end_power`
[INFO] [stdout]   --> src/main.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     end_power: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Configuration` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/main.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 | #[derive(StructOpt, Debug)]
[INFO] [stdout]    |                     ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_power_two_sizes`
[INFO] [stdout]   --> src/main.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn get_power_two_sizes(max_power: u32) -> Vec<usize> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.70s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/ufe_abe-fe7cbb7236926512)
[INFO] running `Command { std: "docker" "inspect" "fe3ea557683f56bf0787bd1d8e2f7edb622d3a89b6226fb3fd8df3166bb31427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe3ea557683f56bf0787bd1d8e2f7edb622d3a89b6226fb3fd8df3166bb31427", kill_on_drop: false }`
[INFO] [stdout] fe3ea557683f56bf0787bd1d8e2f7edb622d3a89b6226fb3fd8df3166bb31427