[INFO] updating cached repository russelldmatt/tv-trackr-rs [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/russelldmatt/tv-trackr-rs [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/russelldmatt/tv-trackr-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/russelldmatt/tv-trackr-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/russelldmatt/tv-trackr-rs'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/russelldmatt/tv-trackr-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/russelldmatt/tv-trackr-rs"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/russelldmatt/tv-trackr-rs'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c213ddac29e3b1e3c771f7c934c2430faf02e390 [INFO] sha for GitHub repo russelldmatt/tv-trackr-rs: c213ddac29e3b1e3c771f7c934c2430faf02e390 [INFO] validating manifest of russelldmatt/tv-trackr-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 russelldmatt/tv-trackr-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 russelldmatt/tv-trackr-rs [INFO] finished frobbing russelldmatt/tv-trackr-rs [INFO] frobbed toml for russelldmatt/tv-trackr-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/russelldmatt/tv-trackr-rs/Cargo.toml [INFO] started frobbing russelldmatt/tv-trackr-rs [INFO] finished frobbing russelldmatt/tv-trackr-rs [INFO] frobbed toml for russelldmatt/tv-trackr-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/russelldmatt/tv-trackr-rs/Cargo.toml [INFO] crate russelldmatt/tv-trackr-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 russelldmatt/tv-trackr-rs 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-0/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/russelldmatt/tv-trackr-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" "+1.37.0" "build" "--frozen"` [INFO] [stdout] fd4c0e79c9cad384398149d44e8d4e86fc3791026758bb396e0c0bd85c2168a4 [INFO] running `"docker" "start" "-a" "fd4c0e79c9cad384398149d44e8d4e86fc3791026758bb396e0c0bd85c2168a4"` [INFO] [stderr] Compiling matches v0.1.4 [INFO] [stderr] Compiling unicode-normalization v0.1.2 [INFO] [stderr] Compiling libc v0.2.18 [INFO] [stderr] Compiling traitobject v0.0.3 [INFO] [stderr] Compiling log v0.3.6 [INFO] [stderr] Compiling num-traits v0.1.36 [INFO] [stderr] Compiling unicode-xid v0.0.3 [INFO] [stderr] Compiling quote v0.3.10 [INFO] [stderr] Compiling rustc-serialize v0.3.22 [INFO] [stderr] Compiling httparse v1.2.1 [INFO] [stderr] Compiling traitobject v0.0.1 [INFO] [stderr] Compiling dtoa v0.2.2 [INFO] [stderr] Compiling serde v0.8.20 [INFO] [stderr] Compiling modifier v0.1.0 [INFO] [stderr] Compiling lazy_static v0.1.16 [INFO] [stderr] Compiling itoa v0.1.1 [INFO] [stderr] Compiling lazy_static v0.2.2 [INFO] [stderr] Compiling quick-error v1.1.0 [INFO] [stderr] Compiling pest v0.3.3 [INFO] [stderr] Compiling sequence_trie v0.0.13 [INFO] [stderr] Compiling route-recognizer v0.1.11 [INFO] [stderr] Compiling either v1.0.2 [INFO] [stderr] Compiling byteorder v0.5.3 [INFO] [stderr] Compiling unicode-bidi v0.2.3 [INFO] [stderr] Compiling unsafe-any v0.4.1 [INFO] [stderr] Compiling error v0.1.9 [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 v1.2.0 [INFO] [stderr] Compiling num_cpus v0.2.13 [INFO] [stderr] Compiling syn v0.10.3 [INFO] [stderr] Compiling num-integer v0.1.32 [INFO] [stderr] Compiling unicase v1.4.0 [INFO] [stderr] Compiling itertools v0.5.8 [INFO] [stderr] Compiling typemap v0.3.3 [INFO] [stderr] Compiling aho-corasick v0.5.3 [INFO] [stderr] Compiling num-iter v0.1.32 [INFO] [stderr] Compiling solicit v0.4.4 [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 walkdir v0.1.8 [INFO] [stderr] Compiling idna v0.1.0 [INFO] [stderr] Compiling num v0.1.36 [INFO] [stderr] Compiling thread_local v0.2.7 [INFO] [stderr] Compiling regex v0.1.80 [INFO] [stderr] Compiling serde_json v0.8.4 [INFO] [stderr] Compiling url v1.2.4 [INFO] [stderr] Compiling serde_codegen_internals v0.11.2 [INFO] [stderr] Compiling conduit-mime-types v0.7.3 [INFO] [stderr] Compiling bincode v0.6.0 [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-1.2.4/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 serde_codegen v0.8.20 [INFO] [stderr] Compiling cookie v0.2.5 [INFO] [stderr] Compiling handlebars v0.23.0 [INFO] [stderr] Compiling serde_derive v0.8.20 [INFO] [stderr] Compiling hyper v0.9.14 [INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-0.8.20/src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(proc_macro, proc_macro_lib)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `serde_derive`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "fd4c0e79c9cad384398149d44e8d4e86fc3791026758bb396e0c0bd85c2168a4"` [INFO] running `"docker" "rm" "-f" "fd4c0e79c9cad384398149d44e8d4e86fc3791026758bb396e0c0bd85c2168a4"` [INFO] [stdout] fd4c0e79c9cad384398149d44e8d4e86fc3791026758bb396e0c0bd85c2168a4