[INFO] cloning repository https://github.com/mgattozzi/oxidizing-the-technical-interview [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mgattozzi/oxidizing-the-technical-interview" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Foxidizing-the-technical-interview"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Foxidizing-the-technical-interview'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b536ec33119b316c2527476541def377c63b14b4 [INFO] checking mgattozzi/oxidizing-the-technical-interview against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Foxidizing-the-technical-interview" "/workspace/builds/worker-1/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mgattozzi/oxidizing-the-technical-interview on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6 [INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mgattozzi/oxidizing-the-technical-interview [INFO] finished tweaking git repo https://github.com/mgattozzi/oxidizing-the-technical-interview [INFO] tweaked toml for git repo https://github.com/mgattozzi/oxidizing-the-technical-interview written to /workspace/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/mgattozzi/oxidizing-the-technical-interview already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 69a9caebbc0d8ee8c049f6caffa3e2fc500c5e8f7bb9730452e9af824f340e32 [INFO] running `"docker" "start" "-a" "69a9caebbc0d8ee8c049f6caffa3e2fc500c5e8f7bb9730452e9af824f340e32"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Checking oxidizing-the-interview v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error[E0152]: found duplicate lang item `sized` [INFO] [stderr] --> src/main.rs:47:1 [INFO] [stderr] | [INFO] [stderr] 47 | pub trait Sized {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `freeze` [INFO] [stderr] --> src/main.rs:49:1 [INFO] [stderr] | [INFO] [stderr] 49 | auto trait Freeze {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `receiver` [INFO] [stderr] --> src/main.rs:54:1 [INFO] [stderr] | [INFO] [stderr] 54 | trait Receiver {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `index` [INFO] [stderr] --> src/main.rs:56:1 [INFO] [stderr] | [INFO] [stderr] 56 | / trait Index { [INFO] [stderr] 57 | | type Output: ?Sized; [INFO] [stderr] 58 | | fn index(&self, index: Idx) -> &Self::Output; [INFO] [stderr] 59 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `copy` [INFO] [stderr] --> src/main.rs:79:1 [INFO] [stderr] | [INFO] [stderr] 79 | trait Copy: Clone {} [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `eq` [INFO] [stderr] --> src/main.rs:87:1 [INFO] [stderr] | [INFO] [stderr] 87 | / trait PartialEq { [INFO] [stderr] 88 | | fn eq(&self, other: &Rhs) -> bool; [INFO] [stderr] 89 | | fn ne(&self, other: &Rhs) -> bool { [INFO] [stderr] 90 | | !self.eq(other) [INFO] [stderr] 91 | | } [INFO] [stderr] 92 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `partial_ord` [INFO] [stderr] --> src/main.rs:94:1 [INFO] [stderr] | [INFO] [stderr] 94 | / trait PartialOrd: PartialEq { [INFO] [stderr] 95 | | fn partial_cmp(&self, other: &Rhs) -> Option; [INFO] [stderr] 96 | | fn lt(&self, other: &Rhs) -> bool { [INFO] [stderr] 97 | | matches!(self.partial_cmp(other), Some(Less)) [INFO] [stderr] ... | [INFO] [stderr] 107 | | } [INFO] [stderr] 108 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `not` [INFO] [stderr] --> src/main.rs:110:1 [INFO] [stderr] | [INFO] [stderr] 110 | / trait Not { [INFO] [stderr] 111 | | type Output; [INFO] [stderr] 112 | | [INFO] [stderr] 113 | | fn not(self) -> Self::Output; [INFO] [stderr] 114 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `neg` [INFO] [stderr] --> src/main.rs:116:1 [INFO] [stderr] | [INFO] [stderr] 116 | / trait Neg { [INFO] [stderr] 117 | | type Output; [INFO] [stderr] 118 | | fn neg(self) -> Self::Output; [INFO] [stderr] 119 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `sub` [INFO] [stderr] --> src/main.rs:121:1 [INFO] [stderr] | [INFO] [stderr] 121 | / trait Sub { [INFO] [stderr] 122 | | type Output; [INFO] [stderr] 123 | | fn sub(self, rhs: Rhs) -> Self::Output; [INFO] [stderr] 124 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `slice` [INFO] [stderr] --> src/main.rs:129:1 [INFO] [stderr] | [INFO] [stderr] 129 | / impl [T] { [INFO] [stderr] 130 | | #[allow(unused_attributes)] [INFO] [stderr] 131 | | #[allow_internal_unstable(const_fn_union)] [INFO] [stderr] 132 | | const fn len(&self) -> usize { [INFO] [stderr] ... | [INFO] [stderr] 142 | | } [INFO] [stderr] 143 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `const_ptr` [INFO] [stderr] --> src/main.rs:146:1 [INFO] [stderr] | [INFO] [stderr] 146 | / impl *const T { [INFO] [stderr] 147 | | unsafe fn add(self, count: usize) -> Self [INFO] [stderr] 148 | | where [INFO] [stderr] 149 | | T: Sized, [INFO] [stderr] ... | [INFO] [stderr] 159 | | } [INFO] [stderr] 160 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `mut_ptr` [INFO] [stderr] --> src/main.rs:162:1 [INFO] [stderr] | [INFO] [stderr] 162 | / impl *mut T { [INFO] [stderr] 163 | | unsafe fn add(self, count: usize) -> *mut T [INFO] [stderr] 164 | | where [INFO] [stderr] 165 | | T: Sized, [INFO] [stderr] ... | [INFO] [stderr] 174 | | } [INFO] [stderr] 175 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stderr] [INFO] [stderr] error[E0152]: found duplicate lang item `start` [INFO] [stderr] --> src/main.rs:264:1 [INFO] [stderr] | [INFO] [stderr] 264 | / fn start(main: fn() -> T, _: isize, _: *const *const u8) -> isize { [INFO] [stderr] 265 | | main().report() as isize [INFO] [stderr] 266 | | } [INFO] [stderr] | |_^ [INFO] [stderr] | [INFO] [stderr] = note: the lang item is first defined in crate `std` (which `test` depends on) [INFO] [stderr] [INFO] [stderr] error: internal compiler error: broken MIR in DefId(0:87 ~ oxidizing_the_interview[646c]::{{impl}}[7]::neg[0]) (NoSolution): could not prove Binder(TraitPredicate()) [INFO] [stderr] [INFO] [stderr] thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', src/librustc_errors/lib.rs:366:17 [INFO] [stderr] stack backtrace: [INFO] [stderr] error: aborting due to 14 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0152`. [INFO] [stderr] error: could not compile `oxidizing-the-interview`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] 0: 0x7f4f47365c25 - backtrace::backtrace::libunwind::trace::h678b9599e62f63eb [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7f4f47365c25 - backtrace::backtrace::trace_unsynchronized::hc151481f0e2d39cd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f4f47365c25 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f4f47365c25 - ::fmt::h0e056b70ceff915d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f4f473a31bc - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x7f4f47357d03 - std::io::Write::write_fmt::h5b95d57b9d83617e [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7f4f4736ac30 - std::sys_common::backtrace::_print::hde4f93cf630dd149 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f4f4736ac30 - std::sys_common::backtrace::print::hab894e5c65d4445d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f4f4736ac30 - std::panicking::default_hook::{{closure}}::h190ee58e2eec052f [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f4f4736a97c - std::panicking::default_hook::he2b0e031648f6bed [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f4f47a6b6b3 - rustc_driver::report_ice::haa8e845cd8e3086f [INFO] [stderr] 11: 0x7f4f4736b2dc - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b [INFO] [stderr] at src/libstd/panicking.rs:490 [INFO] [stderr] 12: 0x7f4f4a56af8e - std::panicking::begin_panic::h3b947d1b24f14405 [INFO] [stderr] 13: 0x7f4f4a5756a2 - ::drop::h2617d0eb7367bc84 [INFO] [stderr] 14: 0x7f4f47ad6ca6 - core::ptr::drop_in_place::hce910bbe2a618bf5 [INFO] [stderr] 15: 0x7f4f47adb2c6 - as core::ops::drop::Drop>::drop::h49fab45d79a43eb5 [INFO] [stderr] 16: 0x7f4f47a77a1d - core::ptr::drop_in_place::h5a6af1c9eb9f084f [INFO] [stderr] 17: 0x7f4f47a6f9f8 - rustc_interface::interface::run_compiler_in_existing_thread_pool::he213e50db98d4e02 [INFO] [stderr] 18: 0x7f4f47a9dadf - rustc_ast::attr::with_globals::he0d0fd6a7c53fc42 [INFO] [stderr] 19: 0x7f4f47a9f52c - std::sys_common::backtrace::__rust_begin_short_backtrace::hb1810d63aba8cf93 [INFO] [stderr] 20: 0x7f4f47a539ee - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf0f93ed149534c4b [INFO] [stderr] 21: 0x7f4f4737ab3a - as core::ops::function::FnOnce>::call_once::hafe1a9c0c0bd5072 [INFO] [stderr] at /rustc/783139bd8fc3b94fac9a1bf81bba2c506e8221b6/src/liballoc/boxed.rs:1057 [INFO] [stderr] 22: 0x7f4f4737ab3a - as core::ops::function::FnOnce>::call_once::he2190e4ae57d71d9 [INFO] [stderr] at /rustc/783139bd8fc3b94fac9a1bf81bba2c506e8221b6/src/liballoc/boxed.rs:1057 [INFO] [stderr] 23: 0x7f4f4737ab3a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 24: 0x7f4f472bc609 - start_thread [INFO] [stderr] 25: 0x7f4f471d0103 - __clone [INFO] [stderr] 26: 0x0 - [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports [INFO] [stderr] [INFO] [stderr] note: rustc 1.45.0-nightly (783139bd8 2020-05-27) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 --crate-type bin [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] end of query stack [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "69a9caebbc0d8ee8c049f6caffa3e2fc500c5e8f7bb9730452e9af824f340e32"` [INFO] running `"docker" "rm" "-f" "69a9caebbc0d8ee8c049f6caffa3e2fc500c5e8f7bb9730452e9af824f340e32"` [INFO] [stdout] 69a9caebbc0d8ee8c049f6caffa3e2fc500c5e8f7bb9730452e9af824f340e32