[INFO] updating cached repository leonardoblanco/rocket-energy [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/leonardoblanco/rocket-energy [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/leonardoblanco/rocket-energy" "work/ex/beta-1.38-1/sources/1.37.0/gh/leonardoblanco/rocket-energy"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/leonardoblanco/rocket-energy'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/leonardoblanco/rocket-energy" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/leonardoblanco/rocket-energy"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/leonardoblanco/rocket-energy'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 19033559a2835aaaeb5fb1e120e162540bb96200 [INFO] sha for GitHub repo leonardoblanco/rocket-energy: 19033559a2835aaaeb5fb1e120e162540bb96200 [INFO] validating manifest of leonardoblanco/rocket-energy 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 leonardoblanco/rocket-energy 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 leonardoblanco/rocket-energy [INFO] finished frobbing leonardoblanco/rocket-energy [INFO] frobbed toml for leonardoblanco/rocket-energy written to work/ex/beta-1.38-1/sources/1.37.0/gh/leonardoblanco/rocket-energy/Cargo.toml [INFO] started frobbing leonardoblanco/rocket-energy [INFO] finished frobbing leonardoblanco/rocket-energy [INFO] frobbed toml for leonardoblanco/rocket-energy written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/leonardoblanco/rocket-energy/Cargo.toml [INFO] crate leonardoblanco/rocket-energy 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 leonardoblanco/rocket-energy 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-0/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/leonardoblanco/rocket-energy:/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] 2946143ac4948872b1a366573d937b65296fa98c8187adae860253b719134b7d [INFO] running `"docker" "start" "-a" "2946143ac4948872b1a366573d937b65296fa98c8187adae860253b719134b7d"` [INFO] [stderr] Compiling byteorder v1.2.2 [INFO] [stderr] Compiling serde v1.0.37 [INFO] [stderr] Compiling state v0.4.0 [INFO] [stderr] Compiling num-traits v0.2.2 [INFO] [stderr] Compiling smallvec v0.4.4 [INFO] [stderr] Compiling pear v0.0.14 [INFO] [stderr] Compiling crossbeam-utils v0.2.2 [INFO] [stderr] Compiling num_cpus v1.8.0 [INFO] [stderr] Compiling time v0.1.39 [INFO] [stderr] Compiling isatty v0.1.6 [INFO] [stderr] Compiling memchr v1.0.2 [INFO] [stderr] Compiling pear_codegen v0.0.14 [INFO] [stderr] Compiling rocket v0.3.7 [INFO] [stderr] Compiling rocket_codegen v0.3.7 [INFO] [stderr] Compiling crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling base64 v0.6.0 [INFO] [stderr] Compiling mime v0.2.6 [INFO] [stderr] Compiling url v1.7.0 [INFO] [stderr] Compiling crossbeam-deque v0.2.0 [INFO] [stderr] error: failed to run custom build command for `pear_codegen v0.0.14` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/pear_codegen-b555c3ce9f969679/build-script-build` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] Error: Pear requires a nightly or dev version of Rust. [INFO] [stderr] Installed version is: 1.38.0-beta.1 (2019-08-13). Minimum required: 1.27.0-nightly (2018-04-03). [INFO] [stderr] thread 'main' panicked at 'Aborting compilation due to incompatible compiler.', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/build.rs:31:13 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x5603988fb72b - backtrace::backtrace::libunwind::trace::h23ae608c8b906c69 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x5603988fb72b - backtrace::backtrace::trace_unsynchronized::h65b3ea295a85fd48 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x5603988fb72b - std::sys_common::backtrace::_print::h24f527b44b6cfc06 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x5603988fb72b - std::sys_common::backtrace::print::h712608e4347fd64a [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x5603988fb72b - std::panicking::default_hook::{{closure}}::h6c3d570c2b500048 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x5603988fb406 - std::panicking::default_hook::hb29963fb4747e0dd [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x5603988fbded - std::panicking::rust_panic_with_hook::hd1236c3083de823a [INFO] [stderr] at src/libstd/panicking.rs:477 [INFO] [stderr] 7: 0x5603988d0c21 - std::panicking::begin_panic::hbd6759ce9a6aa4c5 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/panicking.rs:411 [INFO] [stderr] 8: 0x5603988cea5a - build_script_build::main::h80d3e2c52ef3ed00 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/build.rs:31 [INFO] [stderr] 9: 0x5603988d0160 - std::rt::lang_start::{{closure}}::h0f7d666bef3eb184 [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 10: 0x5603988fb843 - std::rt::lang_start_internal::{{closure}}::hf367a5a6ae52b0ce [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 11: 0x5603988fb843 - std::panicking::try::do_call::h9d779bc5e27e3284 [INFO] [stderr] at src/libstd/panicking.rs:296 [INFO] [stderr] 12: 0x560398901d0a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:80 [INFO] [stderr] 13: 0x5603988fc2fd - std::panicking::try::h4af22d9cb0afa351 [INFO] [stderr] at src/libstd/panicking.rs:275 [INFO] [stderr] 14: 0x5603988fc2fd - std::panic::catch_unwind::hbb68a9ada87bfb97 [INFO] [stderr] at src/libstd/panic.rs:394 [INFO] [stderr] 15: 0x5603988fc2fd - std::rt::lang_start_internal::hba9e09d74440ce4d [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 16: 0x5603988d0139 - std::rt::lang_start::h3a3f1a72f0de8a3e [INFO] [stderr] at /rustc/e450539c2a8d7f791268d699cbe45ab3e57d43a1/src/libstd/rt.rs:64 [INFO] [stderr] 17: 0x5603988cf83a - main [INFO] [stderr] 18: 0x7fa96d6302e1 - __libc_start_main [INFO] [stderr] 19: 0x5603988ce38a - _start [INFO] [stderr] 20: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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] error: build failed [INFO] running `"docker" "inspect" "2946143ac4948872b1a366573d937b65296fa98c8187adae860253b719134b7d"` [INFO] running `"docker" "rm" "-f" "2946143ac4948872b1a366573d937b65296fa98c8187adae860253b719134b7d"` [INFO] [stdout] 2946143ac4948872b1a366573d937b65296fa98c8187adae860253b719134b7d