[INFO] updating cached repository uhyo/tandem-repeat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/uhyo/tandem-repeat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/uhyo/tandem-repeat" "work/ex/beta-1.37-6/sources/1.36.0/gh/uhyo/tandem-repeat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/uhyo/tandem-repeat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/uhyo/tandem-repeat" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/uhyo/tandem-repeat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/uhyo/tandem-repeat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a8b54d63ba7b30640e1576f5f48cc4145e19ff2a
[INFO] sha for GitHub repo uhyo/tandem-repeat: a8b54d63ba7b30640e1576f5f48cc4145e19ff2a
[INFO] validating manifest of uhyo/tandem-repeat on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of uhyo/tandem-repeat on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing uhyo/tandem-repeat
[INFO] finished frobbing uhyo/tandem-repeat
[INFO] frobbed toml for uhyo/tandem-repeat written to work/ex/beta-1.37-6/sources/1.36.0/gh/uhyo/tandem-repeat/Cargo.toml
[INFO] started frobbing uhyo/tandem-repeat
[INFO] finished frobbing uhyo/tandem-repeat
[INFO] frobbed toml for uhyo/tandem-repeat written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/uhyo/tandem-repeat/Cargo.toml
[INFO] crate uhyo/tandem-repeat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing uhyo/tandem-repeat against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/uhyo/tandem-repeat:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 2a36a3bf75a1a70be9ea9468c3107b32255bde46b845ebcbcce4e0b7f70dc655
[INFO] running `"docker" "start" "-a" "2a36a3bf75a1a70be9ea9468c3107b32255bde46b845ebcbcce4e0b7f70dc655"`
[INFO] [stderr]    Compiling bencher v0.1.3
[INFO] [stderr]    Compiling getopts v0.2.14
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]     --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.14/src/lib.rs:1008:33
[INFO] [stderr]      |
[INFO] [stderr] 955  |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]      |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 959  |         state = match (state, whitespace, limit) {
[INFO] [stderr]      |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 1008 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]      |                                 ^ use of borrowed `state`
[INFO] [stderr] 1009 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]      |         ------- borrow later used here
[INFO] [stderr]      |
[INFO] [stderr]      = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]      = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]      = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling tandem-repeat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/algorithm/lcp_divide.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..len {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.12s
[INFO] running `"docker" "inspect" "2a36a3bf75a1a70be9ea9468c3107b32255bde46b845ebcbcce4e0b7f70dc655"`
[INFO] running `"docker" "rm" "-f" "2a36a3bf75a1a70be9ea9468c3107b32255bde46b845ebcbcce4e0b7f70dc655"`
[INFO] [stdout] 2a36a3bf75a1a70be9ea9468c3107b32255bde46b845ebcbcce4e0b7f70dc655
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/uhyo/tandem-repeat:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 41b94156c3983f661def378f701a10d7347b4c59a066b978dabda77a9f5a7257
[INFO] running `"docker" "start" "-a" "41b94156c3983f661def378f701a10d7347b4c59a066b978dabda77a9f5a7257"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling tandem-repeat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/algorithm/lcp_divide.rs:37:9
[INFO] [stderr]    |
[INFO] [stderr] 37 |     for i in 0..len {
[INFO] [stderr]    |         ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `"docker" "inspect" "41b94156c3983f661def378f701a10d7347b4c59a066b978dabda77a9f5a7257"`
[INFO] running `"docker" "rm" "-f" "41b94156c3983f661def378f701a10d7347b4c59a066b978dabda77a9f5a7257"`
[INFO] [stdout] 41b94156c3983f661def378f701a10d7347b4c59a066b978dabda77a9f5a7257
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/uhyo/tandem-repeat:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] d7e3119cf0ff2de22054efce8829f6ee4be868f0521ff53d198d298c184fe579
[INFO] running `"docker" "start" "-a" "d7e3119cf0ff2de22054efce8829f6ee4be868f0521ff53d198d298c184fe579"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tandem_repeat-e2a0f4b0f142da3c
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::ultra_naive::test ... ok
[INFO] [stdout] test test::divide::test ... ok
[INFO] [stdout] test test::divide::test_left ... ok
[INFO] [stdout] test test::lcp_divide::test_left ... ok
[INFO] [stdout] test test::lcp_divide::test ... ok
[INFO] [stdout] test test::lcp::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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] [stderr]      Running /opt/crater/target/debug/deps/tandem_repeat-8aae2e43f4608934
[INFO] [stderr]    Doc-tests tandem-repeat
[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" "d7e3119cf0ff2de22054efce8829f6ee4be868f0521ff53d198d298c184fe579"`
[INFO] running `"docker" "rm" "-f" "d7e3119cf0ff2de22054efce8829f6ee4be868f0521ff53d198d298c184fe579"`
[INFO] [stdout] d7e3119cf0ff2de22054efce8829f6ee4be868f0521ff53d198d298c184fe579