[INFO] fetching crate strength_reduce 0.2.3...
[INFO] testing strength_reduce-0.2.3 against 1.59.0 for beta-1.60-1
[INFO] extracting crate strength_reduce 0.2.3 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate strength_reduce 0.2.3 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate strength_reduce 0.2.3
[INFO] finished tweaking crates.io crate strength_reduce 0.2.3
[INFO] tweaked toml for crates.io crate strength_reduce 0.2.3 written to /workspace/builds/worker-49/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b65cb46bf1739604d21667ce47a5aecea5c90a362c53752efaa80f9192254fe
[INFO] running `Command { std: "docker" "start" "-a" "2b65cb46bf1739604d21667ce47a5aecea5c90a362c53752efaa80f9192254fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b65cb46bf1739604d21667ce47a5aecea5c90a362c53752efaa80f9192254fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b65cb46bf1739604d21667ce47a5aecea5c90a362c53752efaa80f9192254fe", kill_on_drop: false }`
[INFO] [stdout] 2b65cb46bf1739604d21667ce47a5aecea5c90a362c53752efaa80f9192254fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97f4bef12747d05e9e4808f21c9a0d10aecb1da202313417c35b4b1968665df7
[INFO] running `Command { std: "docker" "start" "-a" "97f4bef12747d05e9e4808f21c9a0d10aecb1da202313417c35b4b1968665df7", kill_on_drop: false }`
[INFO] [stderr]    Compiling strength_reduce v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `U64_MAX`
[INFO] [stdout]  --> src/long_division.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const U64_MAX: u128 = core::u64::MAX as u128;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `divide_128`
[INFO] [stdout]   --> src/long_division.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn divide_128(numerator: u128, divisor: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `divide_128_by_64_helper`
[INFO] [stdout]    --> src/long_division.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn divide_128_by_64_helper(numerator: u128, divisor: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `divide_128_by_32_helper`
[INFO] [stdout]    --> src/long_division.rs:197:4
[INFO] [stdout]     |
[INFO] [stdout] 197 | fn divide_128_by_32_helper(numerator: u128, divisor: u32) -> u64 {
[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 0.79s
[INFO] running `Command { std: "docker" "inspect" "97f4bef12747d05e9e4808f21c9a0d10aecb1da202313417c35b4b1968665df7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f4bef12747d05e9e4808f21c9a0d10aecb1da202313417c35b4b1968665df7", kill_on_drop: false }`
[INFO] [stdout] 97f4bef12747d05e9e4808f21c9a0d10aecb1da202313417c35b4b1968665df7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c869301f0df7276ff003050447e592a4f753cfacea76bee5336da6981a2a1c3a
[INFO] running `Command { std: "docker" "start" "-a" "c869301f0df7276ff003050447e592a4f753cfacea76bee5336da6981a2a1c3a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stdout] warning: constant is never used: `U64_MAX`
[INFO] [stdout]  --> src/long_division.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const U64_MAX: u128 = core::u64::MAX as u128;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stdout] warning: function is never used: `divide_128`
[INFO] [stdout]   --> src/long_division.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn divide_128(numerator: u128, divisor: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stdout] warning: function is never used: `divide_128_by_64_helper`
[INFO] [stdout]    --> src/long_division.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn divide_128_by_64_helper(numerator: u128, divisor: u64) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `divide_128_by_32_helper`
[INFO] [stdout]    --> src/long_division.rs:197:4
[INFO] [stdout]     |
[INFO] [stdout] 197 | fn divide_128_by_32_helper(numerator: u128, divisor: u32) -> u64 {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rusty-fork v0.2.2
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling proptest v0.8.7
[INFO] [stderr]    Compiling strength_reduce v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `U64_MAX`
[INFO] [stdout]  --> src/long_division.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | const U64_MAX: u128 = core::u64::MAX as u128;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `divide_128`
[INFO] [stdout]   --> src/long_division.rs:90:8
[INFO] [stdout]    |
[INFO] [stdout] 90 | pub fn divide_128(numerator: u128, divisor: u128) -> u128 {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.91s
[INFO] running `Command { std: "docker" "inspect" "c869301f0df7276ff003050447e592a4f753cfacea76bee5336da6981a2a1c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c869301f0df7276ff003050447e592a4f753cfacea76bee5336da6981a2a1c3a", kill_on_drop: false }`
[INFO] [stdout] c869301f0df7276ff003050447e592a4f753cfacea76bee5336da6981a2a1c3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ba80da3b53023d2d52878f27704a422b863b024f334f43cab8919342432c218c
[INFO] running `Command { std: "docker" "start" "-a" "ba80da3b53023d2d52878f27704a422b863b024f334f43cab8919342432c218c", kill_on_drop: false }`
[INFO] [stderr] warning: constant is never used: `U64_MAX`
[INFO] [stderr]  --> src/long_division.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | const U64_MAX: u128 = core::u64::MAX as u128;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divide_128`
[INFO] [stderr]   --> src/long_division.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | pub fn divide_128(numerator: u128, divisor: u128) -> u128 {
[INFO] [stderr]    |        ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divide_128_by_64_helper`
[INFO] [stderr]    --> src/long_division.rs:128:4
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn divide_128_by_64_helper(numerator: u128, divisor: u64) -> u64 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `divide_128_by_32_helper`
[INFO] [stderr]    --> src/long_division.rs:197:4
[INFO] [stderr]     |
[INFO] [stderr] 197 | fn divide_128_by_32_helper(numerator: u128, divisor: u32) -> u64 {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `strength_reduce` (lib) generated 4 warnings
[INFO] [stderr] warning: `strength_reduce` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/strength_reduce-b74c7e0580066e4a)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test long_division::unit_tests::test_divide_128_by_64 ... ok
[INFO] [stdout] test unit_tests::test_strength_reduced_u16 ... ok
[INFO] [stdout] test unit_tests::test_strength_reduced_u32 ... ok
[INFO] [stdout] test unit_tests::test_strength_reduced_u64 ... ok
[INFO] [stdout] test unit_tests::test_strength_reduced_u8 ... ok
[INFO] [stdout] test unit_tests::test_strength_reduced_u128 ... ok
[INFO] [stdout] test unit_tests::test_strength_reduced_usize ... ok
[INFO] [stdout] test long_division::unit_tests::test_max_256 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.45s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test_reduced_unsigned.rs (/opt/rustwide/target/debug/deps/test_reduced_unsigned-451f3659785b5d17)
[INFO] [stdout] 
[INFO] [stdout] running 20 tests
[INFO] [stdout] test test_strength_reduced_u08_exhaustive ... ignored
[INFO] [stdout] test test_strength_reduced_u16_exhaustive ... ignored
[INFO] [stdout] test strength_reduced_u16::fully_generated_inputs_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u32::fully_generated_inputs_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_usize::fully_generated_inputs_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u08::generated_divisors_with_edge_case_numerators_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u08::fully_generated_inputs_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u16::generated_divisors_with_edge_case_numerators_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u64::generated_numerators_with_edge_case_divisors_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u64::fully_generated_inputs_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u16::generated_numerators_with_edge_case_divisors_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u32::generated_numerators_with_edge_case_divisors_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_usize::generated_numerators_with_edge_case_divisors_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u08::generated_numerators_with_edge_case_divisors_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u32::generated_divisors_with_edge_case_numerators_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u64::generated_divisors_with_edge_case_numerators_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_usize::generated_divisors_with_edge_case_numerators_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u128::generated_numerators_with_edge_case_divisors_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u128::fully_generated_inputs_are_div_rem_equivalent ... ok
[INFO] [stdout] test strength_reduced_u128::generated_divisors_with_edge_case_numerators_are_div_rem_equivalent ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 1.49s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests strength_reduce
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba80da3b53023d2d52878f27704a422b863b024f334f43cab8919342432c218c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba80da3b53023d2d52878f27704a422b863b024f334f43cab8919342432c218c", kill_on_drop: false }`
[INFO] [stdout] ba80da3b53023d2d52878f27704a422b863b024f334f43cab8919342432c218c