[INFO] updating cached repository Fuzen-py/Flora-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Fuzen-py/Flora-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Fuzen-py/Flora-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/Fuzen-py/Flora-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Fuzen-py/Flora-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Fuzen-py/Flora-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fuzen-py/Flora-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fuzen-py/Flora-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 089ad63013872aaaa77b2988bc3b6c29c0705b54
[INFO] sha for GitHub repo Fuzen-py/Flora-rs: 089ad63013872aaaa77b2988bc3b6c29c0705b54
[INFO] validating manifest of Fuzen-py/Flora-rs 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 Fuzen-py/Flora-rs 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 Fuzen-py/Flora-rs
[INFO] finished frobbing Fuzen-py/Flora-rs
[INFO] frobbed toml for Fuzen-py/Flora-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/Fuzen-py/Flora-rs/Cargo.toml
[INFO] started frobbing Fuzen-py/Flora-rs
[INFO] finished frobbing Fuzen-py/Flora-rs
[INFO] frobbed toml for Fuzen-py/Flora-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Fuzen-py/Flora-rs/Cargo.toml
[INFO] crate Fuzen-py/Flora-rs 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 Fuzen-py/Flora-rs 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-1/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/Fuzen-py/Flora-rs:/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] e52b877355156f16982d9ba81a647f2e64b1bf67fc43761307a3341a1a4b7b51
[INFO] running `"docker" "start" "-a" "e52b877355156f16982d9ba81a647f2e64b1bf67fc43761307a3341a1a4b7b51"`
[INFO] [stderr]    Compiling siphasher v0.2.2
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling futures v0.1.18
[INFO] [stderr]    Compiling slab v0.4.0
[INFO] [stderr]    Compiling scoped-tls v0.1.0
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.0
[INFO] [stderr]    Compiling build_const v0.2.0
[INFO] [stderr]    Compiling smallvec v0.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling smallvec v0.6.0
[INFO] [stderr]    Compiling httparse v1.2.4
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling language-tags v0.2.2
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]    Compiling sha1 v0.2.0
[INFO] [stderr]    Compiling serde v1.0.27
[INFO] [stderr]    Compiling itoa v0.3.4
[INFO] [stderr]    Compiling adler32 v1.0.2
[INFO] [stderr]    Compiling cute v0.3.0
[INFO] [stderr]    Compiling termcolor v0.3.5
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.26
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling pq-sys v0.4.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling time v0.1.39
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling encoding_rs v0.7.2
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.0
[INFO] [stderr]    Compiling base64 v0.9.0
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[INFO] [stderr]    Compiling base64 v0.8.0
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling humantime v1.1.0
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling parking_lot_core v0.2.13
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling relay v0.1.1
[INFO] [stderr]    Compiling r2d2 v0.8.2
[INFO] [stderr]    Compiling idna v0.1.4
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling parking_lot v0.5.4
[INFO] [stderr]    Compiling mio v0.6.13
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling diesel v0.16.0
[INFO] [stderr]    Compiling tokio-io v0.1.5
[INFO] [stderr]    Compiling regex v0.2.6
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling phf_shared v0.7.21
[INFO] [stderr]    Compiling mime v0.3.5
[INFO] [stderr]    Compiling url v1.7.0
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling tokio-core v0.1.12
[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 remove_dir_all v0.3.0
[INFO] [stderr]    Compiling flate2 v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling chrono v0.4.0
[INFO] [stderr]    Compiling libflate v0.1.14
[INFO] [stderr]    Compiling phf_generator v0.7.21
[INFO] [stderr]    Compiling phf v0.7.21
[INFO] [stderr]    Compiling hyper v0.10.13
[INFO] [stderr]    Compiling serde_urlencoded v0.5.1
[INFO] [stderr]    Compiling env_logger v0.5.4
[INFO] [stderr]    Compiling tokio-proto v0.1.1
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]    Compiling native-tls v0.1.5
[INFO] [stderr]    Compiling phf_codegen v0.7.21
[INFO] [stderr]    Compiling diesel_derives v1.1.0
[INFO] [stderr]    Compiling derive-error-chain v0.11.0
[INFO] [stderr]    Compiling derive-error-chain v0.10.1
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling tokio-tls v0.1.4
[INFO] [stderr]    Compiling mime_guess v1.8.4
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.4
[INFO] [stderr]    Compiling diesel_infer_schema v0.16.0
[INFO] [stderr]    Compiling hyper v0.11.19
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling hyper-native-tls v0.2.4
[INFO] [stderr]    Compiling evzht9h3nznqzwl v0.0.3
[INFO] [stderr]    Compiling dotenv v0.10.1
[INFO] [stderr] error[E0659]: `error_chain` is ambiguous (derive helper attribute vs any other name)
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv-0.10.1/src/lib.rs:23:40
[INFO] [stderr]    |
[INFO] [stderr] 23 | #[cfg_attr(not(feature = "backtrace"), error_chain(backtrace = "false"))]
[INFO] [stderr]    |                                        ^^^^^^^^^^^ ambiguous name
[INFO] [stderr]    |
[INFO] [stderr] note: `error_chain` could refer to the derive helper attribute defined here
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv-0.10.1/src/lib.rs:22:17
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Debug, error_chain)]
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr] note: `error_chain` could also refer to the derive macro imported here
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/dotenv-0.10.1/src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling diesel v1.1.1
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: Could not compile `dotenv`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e52b877355156f16982d9ba81a647f2e64b1bf67fc43761307a3341a1a4b7b51"`
[INFO] running `"docker" "rm" "-f" "e52b877355156f16982d9ba81a647f2e64b1bf67fc43761307a3341a1a4b7b51"`
[INFO] [stdout] e52b877355156f16982d9ba81a647f2e64b1bf67fc43761307a3341a1a4b7b51