[INFO] updating cached repository mgattozzi/nightly-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mgattozzi/nightly-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mgattozzi/nightly-rust" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/mgattozzi/nightly-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/mgattozzi/nightly-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mgattozzi/nightly-rust" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/mgattozzi/nightly-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/mgattozzi/nightly-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e186131a6aac7098fb98b93cbb8fab44ed7f8ff4
[INFO] sha for GitHub repo mgattozzi/nightly-rust: e186131a6aac7098fb98b93cbb8fab44ed7f8ff4
[INFO] validating manifest of mgattozzi/nightly-rust on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mgattozzi/nightly-rust on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mgattozzi/nightly-rust
[INFO] finished frobbing mgattozzi/nightly-rust
[INFO] frobbed toml for mgattozzi/nightly-rust written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/mgattozzi/nightly-rust/Cargo.toml
[INFO] started frobbing mgattozzi/nightly-rust
[INFO] finished frobbing mgattozzi/nightly-rust
[INFO] frobbed toml for mgattozzi/nightly-rust written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/mgattozzi/nightly-rust/Cargo.toml
[INFO] crate mgattozzi/nightly-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "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] checking mgattozzi/nightly-rust against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-2/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/mgattozzi/nightly-rust:/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f7cd08ea8c110609f521039c463de3f3622c027d603a6127116d3036e7920a6c
[INFO] running `"docker" "start" "-a" "f7cd08ea8c110609f521039c463de3f3622c027d603a6127116d3036e7920a6c"`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]    Compiling version_check v0.1.3
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling typenum v1.9.0
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]    Compiling openssl v0.9.23
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking num-traits v0.1.42
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking scoped-tls v0.1.0
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking safemem v0.2.0
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]     Checking matches v0.1.6
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking httparse v1.2.4
[INFO] [stderr]     Checking arrayref v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.5
[INFO] [stderr]     Checking constant_time_eq v0.1.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking take_mut v0.2.0
[INFO] [stderr]     Checking slog v2.1.1
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking num_cpus v1.8.0
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[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking isatty v0.1.6
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]     Checking base64 v0.9.0
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[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking mio v0.6.12
[INFO] [stderr]     Checking num v0.1.41
[INFO] [stderr]     Checking slog-async v2.2.0
[INFO] [stderr]    Compiling openssl-sys v0.9.24
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking relay v0.1.0
[INFO] [stderr]     Checking tokio-io v0.1.4
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking mime v0.3.5
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking generic-array v0.8.3
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking url v1.6.0
[INFO] [stderr]     Checking crypto-mac v0.4.0
[INFO] [stderr]     Checking digest v0.6.2
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[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-1.6.0/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]     Checking hyper v0.11.15
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper-tls v0.1.2
[INFO] [stderr]     Checking egg-mode v0.12.0
[INFO] [stderr]     Checking nightly-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:24:45
[INFO] [stderr]    |
[INFO] [stderr] 24 | type Result<T> = std::result::Result<T, Box<Error>>;
[INFO] [stderr]    |                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:24:45
[INFO] [stderr]    |
[INFO] [stderr] 24 | type Result<T> = std::result::Result<T, Box<Error>>;
[INFO] [stderr]    |                                             ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.95s
[INFO] running `"docker" "inspect" "f7cd08ea8c110609f521039c463de3f3622c027d603a6127116d3036e7920a6c"`
[INFO] running `"docker" "rm" "-f" "f7cd08ea8c110609f521039c463de3f3622c027d603a6127116d3036e7920a6c"`
[INFO] [stdout] f7cd08ea8c110609f521039c463de3f3622c027d603a6127116d3036e7920a6c