[INFO] fetching crate ilog2 0.2.2...
[INFO] testing ilog2-0.2.2 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate ilog2 0.2.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ilog2 0.2.2 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ilog2 0.2.2
[INFO] finished tweaking crates.io crate ilog2 0.2.2
[INFO] tweaked toml for crates.io crate ilog2 0.2.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86a575706aa9f4f4a62720baac1486410690c92920d500f4e406b9d17544e612
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "86a575706aa9f4f4a62720baac1486410690c92920d500f4e406b9d17544e612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86a575706aa9f4f4a62720baac1486410690c92920d500f4e406b9d17544e612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a575706aa9f4f4a62720baac1486410690c92920d500f4e406b9d17544e612", kill_on_drop: false }`
[INFO] [stdout] 86a575706aa9f4f4a62720baac1486410690c92920d500f4e406b9d17544e612
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc000ded3462a1efabb2cfec0e123a8a3eb324fce808c6a2d5baf0f3337e1de
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "cdc000ded3462a1efabb2cfec0e123a8a3eb324fce808c6a2d5baf0f3337e1de", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling ilog2 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/ffs.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (x.trailing_zeros() as i8)
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fls.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (bits -1i8 - (x.leading_zeros() as i8))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/ffz.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (x.trailing_ones() as i8)
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/flz.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (bits -1i8 - (x.leading_ones() as i8))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.86s
[INFO] running `Command { std: "docker" "inspect" "cdc000ded3462a1efabb2cfec0e123a8a3eb324fce808c6a2d5baf0f3337e1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc000ded3462a1efabb2cfec0e123a8a3eb324fce808c6a2d5baf0f3337e1de", kill_on_drop: false }`
[INFO] [stdout] cdc000ded3462a1efabb2cfec0e123a8a3eb324fce808c6a2d5baf0f3337e1de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 68fd1795ae61c28384bb5bd0cf50b613be3684a505a8ad987f9e57203dc0a6d6
[INFO] running `Command { std: "docker" "start" "-a" "68fd1795ae61c28384bb5bd0cf50b613be3684a505a8ad987f9e57203dc0a6d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling ilog2 v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/ffs.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (x.trailing_zeros() as i8)
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fls.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (bits -1i8 - (x.leading_zeros() as i8))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/ffz.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (x.trailing_ones() as i8)
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/flz.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (bits -1i8 - (x.leading_ones() as i8))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/ffs.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (x.trailing_zeros() as i8)
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/fls.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (bits -1i8 - (x.leading_zeros() as i8))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]  --> src/ffz.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |         (x.trailing_ones() as i8)
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/flz.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |         (bits -1i8 - (x.leading_ones() as i8))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "68fd1795ae61c28384bb5bd0cf50b613be3684a505a8ad987f9e57203dc0a6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68fd1795ae61c28384bb5bd0cf50b613be3684a505a8ad987f9e57203dc0a6d6", kill_on_drop: false }`
[INFO] [stdout] 68fd1795ae61c28384bb5bd0cf50b613be3684a505a8ad987f9e57203dc0a6d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9f22a59efa10e233078b9fbe05348a05f3f678364b4dc5e71c14332956f42a41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f22a59efa10e233078b9fbe05348a05f3f678364b4dc5e71c14332956f42a41", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/ffs.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         (x.trailing_zeros() as i8)
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/fls.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         (bits -1i8 - (x.leading_zeros() as i8))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/ffz.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         (x.trailing_ones() as i8)
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/flz.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         (bits -1i8 - (x.leading_ones() as i8))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/ffs.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         (x.trailing_zeros() as i8)
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/fls.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         (bits -1i8 - (x.leading_zeros() as i8))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> src/ffz.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         (x.trailing_ones() as i8)
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/flz.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         (bits -1i8 - (x.leading_ones() as i8))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ilog2-fa1ee3b943a371b4)
[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]      Running unittests (/opt/rustwide/target/debug/deps/rust_ilog2_test-e9e83232bfd0ca8e)
[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 ilog2
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> /opt/rustwide/workdir/src/ffs.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         (x.trailing_zeros() as i8)
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/fls.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         (bits -1i8 - (x.leading_zeros() as i8))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]  --> /opt/rustwide/workdir/src/ffz.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |         (x.trailing_ones() as i8)
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> /opt/rustwide/workdir/src/flz.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |         (bits -1i8 - (x.leading_ones() as i8))
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[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] running `Command { std: "docker" "inspect" "9f22a59efa10e233078b9fbe05348a05f3f678364b4dc5e71c14332956f42a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f22a59efa10e233078b9fbe05348a05f3f678364b4dc5e71c14332956f42a41", kill_on_drop: false }`
[INFO] [stdout] 9f22a59efa10e233078b9fbe05348a05f3f678364b4dc5e71c14332956f42a41