[INFO] fetching crate single-utilities 0.8.7...
[INFO] testing single-utilities-0.8.7 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate single-utilities 0.8.7 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate single-utilities 0.8.7
[INFO] finished tweaking crates.io crate single-utilities 0.8.7
[INFO] tweaked toml for crates.io crate single-utilities 0.8.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate single-utilities 0.8.7 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate single-utilities 0.8.7 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f43007192a4bcc2c3db23f64899abca8f801824cb83eade9f041c7ec6646320
[INFO] running `Command { std: "docker" "start" "-a" "4f43007192a4bcc2c3db23f64899abca8f801824cb83eade9f041c7ec6646320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f43007192a4bcc2c3db23f64899abca8f801824cb83eade9f041c7ec6646320", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f43007192a4bcc2c3db23f64899abca8f801824cb83eade9f041c7ec6646320", kill_on_drop: false }`
[INFO] [stdout] 4f43007192a4bcc2c3db23f64899abca8f801824cb83eade9f041c7ec6646320
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f6c0da964279d3b883c992d088050441fe136e6f43bea07981a199df9ef9159
[INFO] running `Command { std: "docker" "start" "-a" "2f6c0da964279d3b883c992d088050441fe136e6f43bea07981a199df9ef9159", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling single-utilities v0.8.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/utils/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     if (len_source != len_target) {
[INFO] [stdout]    |        ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     if (len_source != len_target) {
[INFO] [stdout] 12 +     if len_source != len_target  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]  --> src/utils/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     verbose: bool,
[INFO] [stdout]   |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.86s
[INFO] running `Command { std: "docker" "inspect" "2f6c0da964279d3b883c992d088050441fe136e6f43bea07981a199df9ef9159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6c0da964279d3b883c992d088050441fe136e6f43bea07981a199df9ef9159", kill_on_drop: false }`
[INFO] [stdout] 2f6c0da964279d3b883c992d088050441fe136e6f43bea07981a199df9ef9159
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f401ceac2471129e86679e5170d0a0b1edbb9608e94f3bf6d5e42e91b1be862
[INFO] running `Command { std: "docker" "start" "-a" "7f401ceac2471129e86679e5170d0a0b1edbb9608e94f3bf6d5e42e91b1be862", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/utils/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     if (len_source != len_target) {
[INFO] [stdout]    |        ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     if (len_source != len_target) {
[INFO] [stdout] 12 +     if len_source != len_target  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]  --> src/utils/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     verbose: bool,
[INFO] [stdout]   |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling single-utilities v0.8.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/utils/mod.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 |     if (len_source != len_target) {
[INFO] [stdout]    |        ^                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 12 -     if (len_source != len_target) {
[INFO] [stdout] 12 +     if len_source != len_target  {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `verbose`
[INFO] [stdout]  --> src/utils/mod.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     verbose: bool,
[INFO] [stdout]   |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "7f401ceac2471129e86679e5170d0a0b1edbb9608e94f3bf6d5e42e91b1be862", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f401ceac2471129e86679e5170d0a0b1edbb9608e94f3bf6d5e42e91b1be862", kill_on_drop: false }`
[INFO] [stdout] 7f401ceac2471129e86679e5170d0a0b1edbb9608e94f3bf6d5e42e91b1be862
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eec7144bd4f20a0df07827e0c2da986e5b34d835bf8d7ab2ca6155851498b0f1
[INFO] running `Command { std: "docker" "start" "-a" "eec7144bd4f20a0df07827e0c2da986e5b34d835bf8d7ab2ca6155851498b0f1", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/utils/mod.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     if (len_source != len_target) {
[INFO] [stderr]    |        ^                        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 12 -     if (len_source != len_target) {
[INFO] [stderr] 12 +     if len_source != len_target  {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `verbose`
[INFO] [stderr]  --> src/utils/mod.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     verbose: bool,
[INFO] [stderr]   |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_verbose`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `single-utilities` (lib) generated 2 warnings (run `cargo fix --lib -p single-utilities` to apply 2 suggestions)
[INFO] [stderr] warning: `single-utilities` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/single_utilities-a8da8082550c0749)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests single_utilities
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/utils/mod.rs:12:8
[INFO] [stderr]    |
[INFO] [stderr] 12 |     if (len_source != len_target) {
[INFO] [stderr]    |        ^                        ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 12 -     if (len_source != len_target) {
[INFO] [stderr] 12 +     if len_source != len_target  {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.65s; merged doctests compilation took 0.64s
[INFO] running `Command { std: "docker" "inspect" "eec7144bd4f20a0df07827e0c2da986e5b34d835bf8d7ab2ca6155851498b0f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eec7144bd4f20a0df07827e0c2da986e5b34d835bf8d7ab2ca6155851498b0f1", kill_on_drop: false }`
[INFO] [stdout] eec7144bd4f20a0df07827e0c2da986e5b34d835bf8d7ab2ca6155851498b0f1