[INFO] crate strength_reduce 0.2.3 is already in cache
[INFO] checking strength_reduce-0.2.3 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate strength_reduce 0.2.3 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate strength_reduce 0.2.3 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] da72f3642161839ee84732dba0b76fc8968164f70c4286f370ea85e91b32f9c6
[INFO] running `"docker" "start" "-a" "da72f3642161839ee84732dba0b76fc8968164f70c4286f370ea85e91b32f9c6"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking strength_reduce v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr] warning: constant item 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: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.8.7
[INFO] [stderr] warning: constant item 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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.87s
[INFO] running `"docker" "inspect" "da72f3642161839ee84732dba0b76fc8968164f70c4286f370ea85e91b32f9c6"`
[INFO] running `"docker" "rm" "-f" "da72f3642161839ee84732dba0b76fc8968164f70c4286f370ea85e91b32f9c6"`
[INFO] [stdout] da72f3642161839ee84732dba0b76fc8968164f70c4286f370ea85e91b32f9c6