[INFO] updating cached repository rolandcla/pll_counters
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/rolandcla/pll_counters
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/rolandcla/pll_counters" "work/ex/beta-1.38-1/sources/1.37.0/gh/rolandcla/pll_counters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/rolandcla/pll_counters'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/rolandcla/pll_counters" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rolandcla/pll_counters"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rolandcla/pll_counters'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 12974ce9706f87a648c9dac799299053fde57fb1
[INFO] sha for GitHub repo rolandcla/pll_counters: 12974ce9706f87a648c9dac799299053fde57fb1
[INFO] validating manifest of rolandcla/pll_counters on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of rolandcla/pll_counters on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing rolandcla/pll_counters
[INFO] finished frobbing rolandcla/pll_counters
[INFO] frobbed toml for rolandcla/pll_counters written to work/ex/beta-1.38-1/sources/1.37.0/gh/rolandcla/pll_counters/Cargo.toml
[INFO] started frobbing rolandcla/pll_counters
[INFO] finished frobbing rolandcla/pll_counters
[INFO] frobbed toml for rolandcla/pll_counters written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/rolandcla/pll_counters/Cargo.toml
[INFO] crate rolandcla/pll_counters already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing rolandcla/pll_counters against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rolandcla/pll_counters:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 716c36d285374ca844bab7f838e479df0928baa0f439539df0fa0e6e0fadb938
[INFO] running `"docker" "start" "-a" "716c36d285374ca844bab7f838e479df0928baa0f439539df0fa0e6e0fadb938"`
[INFO] [stderr]    Compiling pll_counters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `K_MIN`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const K_MIN: u32 = 25;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `K_MAX`
[INFO] [stderr]   --> src/main.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const K_MAX: u32 = 50;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strip_n`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn strip_n(n: u32) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gcd`
[INFO] [stderr]   --> src/main.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn gcd(a: u32, b: u32) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `are_coprime`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn are_coprime(a: u32, b: u32) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count`
[INFO] [stderr]   --> src/main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn count() -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `"docker" "inspect" "716c36d285374ca844bab7f838e479df0928baa0f439539df0fa0e6e0fadb938"`
[INFO] running `"docker" "rm" "-f" "716c36d285374ca844bab7f838e479df0928baa0f439539df0fa0e6e0fadb938"`
[INFO] [stdout] 716c36d285374ca844bab7f838e479df0928baa0f439539df0fa0e6e0fadb938
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rolandcla/pll_counters:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 37978b608ab014cd57bc94c77535df5359f1c90b72552d24dbbd88c82c15c6a0
[INFO] running `"docker" "start" "-a" "37978b608ab014cd57bc94c77535df5359f1c90b72552d24dbbd88c82c15c6a0"`
[INFO] [stderr]    Compiling pll_counters v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: constant item is never used: `K_MIN`
[INFO] [stderr]  --> src/main.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | const K_MIN: u32 = 25;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant item is never used: `K_MAX`
[INFO] [stderr]   --> src/main.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | const K_MAX: u32 = 50;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `strip_n`
[INFO] [stderr]   --> src/main.rs:31:1
[INFO] [stderr]    |
[INFO] [stderr] 31 | fn strip_n(n: u32) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gcd`
[INFO] [stderr]   --> src/main.rs:35:1
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn gcd(a: u32, b: u32) -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `are_coprime`
[INFO] [stderr]   --> src/main.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn are_coprime(a: u32, b: u32) -> bool {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `count`
[INFO] [stderr]   --> src/main.rs:55:1
[INFO] [stderr]    |
[INFO] [stderr] 55 | fn count() -> u32 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `"docker" "inspect" "37978b608ab014cd57bc94c77535df5359f1c90b72552d24dbbd88c82c15c6a0"`
[INFO] running `"docker" "rm" "-f" "37978b608ab014cd57bc94c77535df5359f1c90b72552d24dbbd88c82c15c6a0"`
[INFO] [stdout] 37978b608ab014cd57bc94c77535df5359f1c90b72552d24dbbd88c82c15c6a0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/rolandcla/pll_counters:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 7bcbf84fceabc96dafa5b340bf64aaec785056ea432bc538b3bcb0c3ce5c4543
[INFO] running `"docker" "start" "-a" "7bcbf84fceabc96dafa5b340bf64aaec785056ea432bc538b3bcb0c3ce5c4543"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/pll_counters-28c5f93100403fe4
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7bcbf84fceabc96dafa5b340bf64aaec785056ea432bc538b3bcb0c3ce5c4543"`
[INFO] running `"docker" "rm" "-f" "7bcbf84fceabc96dafa5b340bf64aaec785056ea432bc538b3bcb0c3ce5c4543"`
[INFO] [stdout] 7bcbf84fceabc96dafa5b340bf64aaec785056ea432bc538b3bcb0c3ce5c4543