[INFO] updating cached repository Byron/git-count
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Byron/git-count
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Byron/git-count" "work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-count"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-count'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Byron/git-count" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-count"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-count'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] ef149677f4e0c14b797c10084c78a113e3977260
[INFO] sha for GitHub repo Byron/git-count: ef149677f4e0c14b797c10084c78a113e3977260
[INFO] validating manifest of Byron/git-count 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 Byron/git-count 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 Byron/git-count
[INFO] finished frobbing Byron/git-count
[INFO] frobbed toml for Byron/git-count written to work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-count/Cargo.toml
[INFO] started frobbing Byron/git-count
[INFO] finished frobbing Byron/git-count
[INFO] frobbed toml for Byron/git-count written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-count/Cargo.toml
[INFO] crate Byron/git-count 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Byron/git-count 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-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-count:/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] 0090f0e837bfc2eac8bd09e3fa28b2a9fcc5a7a71971e6bb8e9b0a4cd58deacd
[INFO] running `"docker" "start" "-a" "0090f0e837bfc2eac8bd09e3fa28b2a9fcc5a7a71971e6bb8e9b0a4cd58deacd"`
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling openssl-sys v0.9.32
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling curl-sys v0.4.5
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling clicolors-control v0.2.0
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling failure-tools v4.0.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.7
[INFO] [stderr]    Compiling libgit2-sys v0.7.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[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 console v0.6.1
[INFO] [stderr]    Compiling indicatif v0.9.0
[INFO] [stderr]    Compiling git2 v0.7.1
[INFO] [stderr]    Compiling git-count v1.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 33s
[INFO] running `"docker" "inspect" "0090f0e837bfc2eac8bd09e3fa28b2a9fcc5a7a71971e6bb8e9b0a4cd58deacd"`
[INFO] running `"docker" "rm" "-f" "0090f0e837bfc2eac8bd09e3fa28b2a9fcc5a7a71971e6bb8e9b0a4cd58deacd"`
[INFO] [stdout] 0090f0e837bfc2eac8bd09e3fa28b2a9fcc5a7a71971e6bb8e9b0a4cd58deacd
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-count:/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] 6ad82a281135835a98c4938969d0ae4cdd1b88086d66dd90c4498a82f7cb6d8b
[INFO] running `"docker" "start" "-a" "6ad82a281135835a98c4938969d0ae4cdd1b88086d66dd90c4498a82f7cb6d8b"`
[INFO] [stderr]    Compiling git-count v1.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `"docker" "inspect" "6ad82a281135835a98c4938969d0ae4cdd1b88086d66dd90c4498a82f7cb6d8b"`
[INFO] running `"docker" "rm" "-f" "6ad82a281135835a98c4938969d0ae4cdd1b88086d66dd90c4498a82f7cb6d8b"`
[INFO] [stdout] 6ad82a281135835a98c4938969d0ae4cdd1b88086d66dd90c4498a82f7cb6d8b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-count:/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] 16b7cb434099c9a673c998cd450e849704f6583b81d0ab39c55c9f4f861242c1
[INFO] running `"docker" "start" "-a" "16b7cb434099c9a673c998cd450e849704f6583b81d0ab39c55c9f4f861242c1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_count-c45d60b2821d52ea
[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" "16b7cb434099c9a673c998cd450e849704f6583b81d0ab39c55c9f4f861242c1"`
[INFO] running `"docker" "rm" "-f" "16b7cb434099c9a673c998cd450e849704f6583b81d0ab39c55c9f4f861242c1"`
[INFO] [stdout] 16b7cb434099c9a673c998cd450e849704f6583b81d0ab39c55c9f4f861242c1