[INFO] updating cached repository cesare/rust-http-experiments
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cesare/rust-http-experiments
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-http-experiments" "work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-http-experiments"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-http-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cesare/rust-http-experiments" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cesare/rust-http-experiments"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cesare/rust-http-experiments'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3be623e3653ac2fcba39200cb17d1d5401ae1268
[INFO] sha for GitHub repo cesare/rust-http-experiments: 3be623e3653ac2fcba39200cb17d1d5401ae1268
[INFO] validating manifest of cesare/rust-http-experiments 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 cesare/rust-http-experiments 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 cesare/rust-http-experiments
[INFO] finished frobbing cesare/rust-http-experiments
[INFO] frobbed toml for cesare/rust-http-experiments written to work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-http-experiments/Cargo.toml
[INFO] started frobbing cesare/rust-http-experiments
[INFO] finished frobbing cesare/rust-http-experiments
[INFO] frobbed toml for cesare/rust-http-experiments written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cesare/rust-http-experiments/Cargo.toml
[INFO] crate cesare/rust-http-experiments 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 cesare/rust-http-experiments 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-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-http-experiments:/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] f9069bfecf3a76fc78359c02fb4494a46b8585bf2a8929fee79b8ce819a3998f
[INFO] running `"docker" "start" "-a" "f9069bfecf3a76fc78359c02fb4494a46b8585bf2a8929fee79b8ce819a3998f"`
[INFO] [stderr]    Compiling rustc-serialize v0.3.23
[INFO] [stderr]    Compiling base64 v0.2.1
[INFO] [stderr]    Compiling openssl-probe v0.1.0
[INFO] [stderr]    Compiling time v0.1.36
[INFO] [stderr]    Compiling libz-sys v1.0.13
[INFO] [stderr]    Compiling openssl-sys v0.9.10
[INFO] [stderr]    Compiling curl-sys v0.3.10
[INFO] [stderr]    Compiling hyper v0.10.5
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling rayon v0.6.0
[INFO] [stderr]    Compiling ring v0.7.3
[INFO] [stderr]    Compiling url v1.4.0
[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-1.4.0/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 webpki v0.10.0
[INFO] [stderr]    Compiling webpki-roots v0.7.0
[INFO] [stderr]    Compiling rustls v0.5.8
[INFO] [stderr]    Compiling hyper-rustls v0.3.2
[INFO] [stderr]    Compiling curl v0.4.6
[INFO] [stderr]    Compiling http-experiments v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 49s
[INFO] running `"docker" "inspect" "f9069bfecf3a76fc78359c02fb4494a46b8585bf2a8929fee79b8ce819a3998f"`
[INFO] running `"docker" "rm" "-f" "f9069bfecf3a76fc78359c02fb4494a46b8585bf2a8929fee79b8ce819a3998f"`
[INFO] [stdout] f9069bfecf3a76fc78359c02fb4494a46b8585bf2a8929fee79b8ce819a3998f
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-http-experiments:/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] 6cc9cb61d4eda2f65f277e08622000be5f3ccd13df5dcb67d47885dc31c18d89
[INFO] running `"docker" "start" "-a" "6cc9cb61d4eda2f65f277e08622000be5f3ccd13df5dcb67d47885dc31c18d89"`
[INFO] [stderr]    Compiling http-experiments v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `"docker" "inspect" "6cc9cb61d4eda2f65f277e08622000be5f3ccd13df5dcb67d47885dc31c18d89"`
[INFO] running `"docker" "rm" "-f" "6cc9cb61d4eda2f65f277e08622000be5f3ccd13df5dcb67d47885dc31c18d89"`
[INFO] [stdout] 6cc9cb61d4eda2f65f277e08622000be5f3ccd13df5dcb67d47885dc31c18d89
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cesare/rust-http-experiments:/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] 4bfbfe08caed6b45274559e52741d0324b8bbb770ddfc0935927e0e02d125670
[INFO] running `"docker" "start" "-a" "4bfbfe08caed6b45274559e52741d0324b8bbb770ddfc0935927e0e02d125670"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/curl_get-b28c3b8d8564584e
[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/http_get-35c40b8ad208bf0d
[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" "4bfbfe08caed6b45274559e52741d0324b8bbb770ddfc0935927e0e02d125670"`
[INFO] running `"docker" "rm" "-f" "4bfbfe08caed6b45274559e52741d0324b8bbb770ddfc0935927e0e02d125670"`
[INFO] [stdout] 4bfbfe08caed6b45274559e52741d0324b8bbb770ddfc0935927e0e02d125670