[INFO] updating cached repository nikomatsakis/cargo-incremental
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/nikomatsakis/cargo-incremental
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/nikomatsakis/cargo-incremental" "work/ex/beta-1.38-1/sources/1.37.0/gh/nikomatsakis/cargo-incremental"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/nikomatsakis/cargo-incremental'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/nikomatsakis/cargo-incremental" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nikomatsakis/cargo-incremental"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nikomatsakis/cargo-incremental'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0526a78abbb4421bd2391f7d5aaa902de1e767d6
[INFO] sha for GitHub repo nikomatsakis/cargo-incremental: 0526a78abbb4421bd2391f7d5aaa902de1e767d6
[INFO] validating manifest of nikomatsakis/cargo-incremental 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 nikomatsakis/cargo-incremental 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 nikomatsakis/cargo-incremental
[INFO] finished frobbing nikomatsakis/cargo-incremental
[INFO] frobbed toml for nikomatsakis/cargo-incremental written to work/ex/beta-1.38-1/sources/1.37.0/gh/nikomatsakis/cargo-incremental/Cargo.toml
[INFO] started frobbing nikomatsakis/cargo-incremental
[INFO] finished frobbing nikomatsakis/cargo-incremental
[INFO] frobbed toml for nikomatsakis/cargo-incremental written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/nikomatsakis/cargo-incremental/Cargo.toml
[INFO] crate nikomatsakis/cargo-incremental 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing nikomatsakis/cargo-incremental 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nikomatsakis/cargo-incremental:/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] adc486f29b81d920b32900e1beec3375081bd841bfdd7ded4a1f028d65f404e0
[INFO] running `"docker" "start" "-a" "adc486f29b81d920b32900e1beec3375081bd841bfdd7ded4a1f028d65f404e0"`
[INFO] [stderr]    Compiling rustc-serialize v0.3.21
[INFO] [stderr]    Compiling gcc v0.3.38
[INFO] [stderr]    Compiling curl-sys v0.4.5
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling terminal_size v0.1.5
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling progress v0.2.0
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling cmake v0.1.18
[INFO] [stderr]    Compiling libz-sys v1.0.6
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling libssh2-sys v0.2.7
[INFO] [stderr]    Compiling libgit2-sys v0.6.19
[INFO] [stderr]    Compiling url v1.2.3
[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-1.2.3/src/form_urlencoded.rs:246:40
[INFO] [stderr]     |
[INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 245 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 246 |     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 env_logger v0.3.5
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling docopt v0.6.86
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.6
[INFO] [stderr]    Compiling git2 v0.6.11
[INFO] [stderr]    Compiling cargo-incremental v0.1.21 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 26s
[INFO] running `"docker" "inspect" "adc486f29b81d920b32900e1beec3375081bd841bfdd7ded4a1f028d65f404e0"`
[INFO] running `"docker" "rm" "-f" "adc486f29b81d920b32900e1beec3375081bd841bfdd7ded4a1f028d65f404e0"`
[INFO] [stdout] adc486f29b81d920b32900e1beec3375081bd841bfdd7ded4a1f028d65f404e0
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/nikomatsakis/cargo-incremental:/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] cfb3088ec71d51ffb1f8edc3f25f1f260f50b1510c5469717d1403ba9aff10ea
[INFO] running `"docker" "start" "-a" "cfb3088ec71d51ffb1f8edc3f25f1f260f50b1510c5469717d1403ba9aff10ea"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cargo-incremental v0.1.21 (/opt/crater/workdir)
[INFO] [stderr] error[E0063]: missing fields `flag_skip_reuse_check`, `flag_verbose` in initializer of `Args`
[INFO] [stderr]    --> src/main.rs:161:16
[INFO] [stderr]     |
[INFO] [stderr] 161 |     let args = Args {
[INFO] [stderr]     |                ^^^^ missing `flag_skip_reuse_check`, `flag_verbose`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0063`.
[INFO] [stderr] error: Could not compile `cargo-incremental`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "cfb3088ec71d51ffb1f8edc3f25f1f260f50b1510c5469717d1403ba9aff10ea"`
[INFO] running `"docker" "rm" "-f" "cfb3088ec71d51ffb1f8edc3f25f1f260f50b1510c5469717d1403ba9aff10ea"`
[INFO] [stdout] cfb3088ec71d51ffb1f8edc3f25f1f260f50b1510c5469717d1403ba9aff10ea