[INFO] updating cached repository Byron/git-commits-by-blob
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Byron/git-commits-by-blob
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Byron/git-commits-by-blob" "work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-commits-by-blob"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-commits-by-blob'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Byron/git-commits-by-blob" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-commits-by-blob"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-commits-by-blob'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 55d988680a66e1252f144e0a2e76dccace242cf4
[INFO] sha for GitHub repo Byron/git-commits-by-blob: 55d988680a66e1252f144e0a2e76dccace242cf4
[INFO] validating manifest of Byron/git-commits-by-blob 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-commits-by-blob 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-commits-by-blob
[INFO] finished frobbing Byron/git-commits-by-blob
[INFO] frobbed toml for Byron/git-commits-by-blob written to work/ex/beta-1.38-1/sources/1.37.0/gh/Byron/git-commits-by-blob/Cargo.toml
[INFO] started frobbing Byron/git-commits-by-blob
[INFO] finished frobbing Byron/git-commits-by-blob
[INFO] frobbed toml for Byron/git-commits-by-blob written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-commits-by-blob/Cargo.toml
[INFO] crate Byron/git-commits-by-blob 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 Byron/git-commits-by-blob against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-commits-by-blob:/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-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 7322158fa9b516ffbb04ad7622be819a561b343bdcb974b8671ee72d341a4fad
[INFO] running `"docker" "start" "-a" "7322158fa9b516ffbb04ad7622be819a561b343bdcb974b8671ee72d341a4fad"`
[INFO] [stderr]    Compiling smallvec v0.6.1
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling libz-sys v1.0.18
[INFO] [stderr]    Compiling openssl-sys v0.9.32
[INFO] [stderr]    Compiling curl-sys v0.4.5
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling clicolors-control v0.2.0
[INFO] [stderr]    Compiling walkdir v2.1.4
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling idna v0.1.4
[INFO] [stderr]    Compiling clap v2.31.2
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]    Compiling libssh2-sys v0.2.7
[INFO] [stderr]    Compiling libgit2-sys v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling failure-tools v4.0.2
[INFO] [stderr]    Compiling console v0.6.1
[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 indicatif v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling structopt v0.2.10
[INFO] [stderr]    Compiling git2 v0.7.1
[INFO] [stderr]    Compiling git-commits-by-blob v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 01s
[INFO] running `"docker" "inspect" "7322158fa9b516ffbb04ad7622be819a561b343bdcb974b8671ee72d341a4fad"`
[INFO] running `"docker" "rm" "-f" "7322158fa9b516ffbb04ad7622be819a561b343bdcb974b8671ee72d341a4fad"`
[INFO] [stdout] 7322158fa9b516ffbb04ad7622be819a561b343bdcb974b8671ee72d341a4fad
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-commits-by-blob:/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-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] c76064220cc115d9d71265cf626e72f3b2c381305e8ba92a38c4e19ddec47496
[INFO] running `"docker" "start" "-a" "c76064220cc115d9d71265cf626e72f3b2c381305e8ba92a38c4e19ddec47496"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling git-commits-by-blob v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.61s
[INFO] running `"docker" "inspect" "c76064220cc115d9d71265cf626e72f3b2c381305e8ba92a38c4e19ddec47496"`
[INFO] running `"docker" "rm" "-f" "c76064220cc115d9d71265cf626e72f3b2c381305e8ba92a38c4e19ddec47496"`
[INFO] [stdout] c76064220cc115d9d71265cf626e72f3b2c381305e8ba92a38c4e19ddec47496
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Byron/git-commits-by-blob:/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-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 99e1e44704ba8af1d130525ef95625426bfe9d3bddb0276d40d51b6177ec666a
[INFO] running `"docker" "start" "-a" "99e1e44704ba8af1d130525ef95625426bfe9d3bddb0276d40d51b6177ec666a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/git_commits_by_blob-b1f58539559ded15
[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" "99e1e44704ba8af1d130525ef95625426bfe9d3bddb0276d40d51b6177ec666a"`
[INFO] running `"docker" "rm" "-f" "99e1e44704ba8af1d130525ef95625426bfe9d3bddb0276d40d51b6177ec666a"`
[INFO] [stdout] 99e1e44704ba8af1d130525ef95625426bfe9d3bddb0276d40d51b6177ec666a