[INFO] updating cached repository lima9/RustTest
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lima9/RustTest
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lima9/RustTest" "work/ex/beta-1.38-1/sources/1.37.0/gh/lima9/RustTest"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/lima9/RustTest'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lima9/RustTest" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lima9/RustTest"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lima9/RustTest'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 17e1b4d5786b52c1cfa810b1dbd183f7109aa8b6
[INFO] sha for GitHub repo lima9/RustTest: 17e1b4d5786b52c1cfa810b1dbd183f7109aa8b6
[INFO] validating manifest of lima9/RustTest 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 lima9/RustTest 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 lima9/RustTest
[INFO] finished frobbing lima9/RustTest
[INFO] frobbed toml for lima9/RustTest written to work/ex/beta-1.38-1/sources/1.37.0/gh/lima9/RustTest/Cargo.toml
[INFO] started frobbing lima9/RustTest
[INFO] finished frobbing lima9/RustTest
[INFO] frobbed toml for lima9/RustTest written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/lima9/RustTest/Cargo.toml
[INFO] crate lima9/RustTest 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 lima9/RustTest 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lima9/RustTest:/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] 749787ceeccff5c3fc70822d4d165a36ad0e62945087010aa8913c187a8d1649
[INFO] running `"docker" "start" "-a" "749787ceeccff5c3fc70822d4d165a36ad0e62945087010aa8913c187a8d1649"`
[INFO] [stderr]    Compiling matches v0.1.4
[INFO] [stderr]    Compiling unicode-normalization v0.1.2
[INFO] [stderr]    Compiling traitobject v0.0.3
[INFO] [stderr]    Compiling log v0.3.6
[INFO] [stderr]    Compiling libc v0.2.17
[INFO] [stderr]    Compiling num-traits v0.1.36
[INFO] [stderr]    Compiling traitobject v0.0.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.21
[INFO] [stderr]    Compiling httparse v1.2.0
[INFO] [stderr]    Compiling route-recognizer v0.1.11
[INFO] [stderr]    Compiling unsafe-any v0.4.1
[INFO] [stderr]    Compiling error v0.1.9
[INFO] [stderr]    Compiling unicode-bidi v0.2.3
[INFO] [stderr]    Compiling unicase v1.4.0
[INFO] [stderr]    Compiling typemap v0.3.3
[INFO] [stderr]    Compiling hpack v0.2.0
[INFO] [stderr]    Compiling mime v0.2.2
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling num_cpus v1.1.0
[INFO] [stderr]    Compiling num_cpus v0.2.13
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling plugin v0.2.6
[INFO] [stderr]    Compiling time v0.1.35
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling num-integer v0.1.32
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling num-iter v0.1.32
[INFO] [stderr]    Compiling solicit v0.4.4
[INFO] [stderr]    Compiling idna v0.1.0
[INFO] [stderr]    Compiling num v0.1.36
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling url v1.2.3
[INFO] [stderr]    Compiling conduit-mime-types v0.7.3
[INFO] [stderr]    Compiling uuid v0.2.3
[INFO] [stderr]    Compiling chrono v0.2.25
[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 cookie v0.2.5
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling hyper v0.9.12
[INFO] [stderr]    Compiling iron v0.4.0
[INFO] [stderr]    Compiling logger v0.2.0
[INFO] [stderr]    Compiling router v0.4.0
[INFO] [stderr]    Compiling iron-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/handlers.rs:138:31
[INFO] [stderr]     |
[INFO] [stderr] 138 |             Ok(Response::with((status::NotFound)))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 55.38s
[INFO] running `"docker" "inspect" "749787ceeccff5c3fc70822d4d165a36ad0e62945087010aa8913c187a8d1649"`
[INFO] running `"docker" "rm" "-f" "749787ceeccff5c3fc70822d4d165a36ad0e62945087010aa8913c187a8d1649"`
[INFO] [stdout] 749787ceeccff5c3fc70822d4d165a36ad0e62945087010aa8913c187a8d1649
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lima9/RustTest:/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] f94638ae7ea7854903d5721aa52bfc499d856a6e954df690e0c1766fadd144d8
[INFO] running `"docker" "start" "-a" "f94638ae7ea7854903d5721aa52bfc499d856a6e954df690e0c1766fadd144d8"`
[INFO] [stderr]    Compiling iron-example v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/handlers.rs:138:31
[INFO] [stderr]     |
[INFO] [stderr] 138 |             Ok(Response::with((status::NotFound)))
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `"docker" "inspect" "f94638ae7ea7854903d5721aa52bfc499d856a6e954df690e0c1766fadd144d8"`
[INFO] running `"docker" "rm" "-f" "f94638ae7ea7854903d5721aa52bfc499d856a6e954df690e0c1766fadd144d8"`
[INFO] [stdout] f94638ae7ea7854903d5721aa52bfc499d856a6e954df690e0c1766fadd144d8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/lima9/RustTest:/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] d7934ad4ddb2726ed4f9dc7b46e4396f84700d82d115b940dcbe9c264e2b5604
[INFO] running `"docker" "start" "-a" "d7934ad4ddb2726ed4f9dc7b46e4396f84700d82d115b940dcbe9c264e2b5604"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/iron_example-8c8f2b26498d6dcf
[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" "d7934ad4ddb2726ed4f9dc7b46e4396f84700d82d115b940dcbe9c264e2b5604"`
[INFO] running `"docker" "rm" "-f" "d7934ad4ddb2726ed4f9dc7b46e4396f84700d82d115b940dcbe9c264e2b5604"`
[INFO] [stdout] d7934ad4ddb2726ed4f9dc7b46e4396f84700d82d115b940dcbe9c264e2b5604