[INFO] updating cached 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" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b536ec33119b316c2527476541def377c63b14b4 [INFO] checking mgattozzi/oxidizing-the-technical-interview against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Foxidizing-the-technical-interview" "/workspace/builds/worker-4/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mgattozzi/oxidizing-the-technical-interview on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112 [INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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-4/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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] eb18cab7859cdeb7f4063ecf84dfa3260776b61a779d6fa85a46761f3ee6710a [INFO] running `"docker" "start" "-a" "eb18cab7859cdeb7f4063ecf84dfa3260776b61a779d6fa85a46761f3ee6710a"` [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: 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] error: internal compiler error: broken MIR in DefId(0:87 ~ oxidizing_the_interview[8034]::{{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] 0: 0x7fe49ca7b2b4 - backtrace::backtrace::libunwind::trace::h98d3444f0ad70429 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7fe49ca7b2b4 - backtrace::backtrace::trace_unsynchronized::h37f821d20053e6cd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7fe49ca7b2b4 - std::sys_common::backtrace::_print_fmt::hff04dc7e915a3c85 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7fe49ca7b2b4 - ::fmt::h61891c439a79f00d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7fe49cab953c - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7fe49ca6d0c3 - std::io::Write::write_fmt::h55f7fe3633ce766f [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7fe49ca80485 - std::sys_common::backtrace::_print::h78339381acb79e1b [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7fe49ca80485 - std::sys_common::backtrace::print::h525aa9f9405c80a1 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7fe49ca80485 - std::panicking::default_hook::{{closure}}::hace90b8a218287e6 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7fe49ca801d7 - std::panicking::default_hook::h160b6beccc49b335 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7fe49d18e473 - rustc_driver::report_ice::hb16883fe47d4c76b [INFO] [stderr] 11: 0x7fe49ca80b3d - std::panicking::rust_panic_with_hook::h36f6804eea3f553a [INFO] [stderr] at src/libstd/panicking.rs:490 [INFO] [stderr] 12: 0x7fe49fcd038e - std::panicking::begin_panic::h3b7c47e8defd7f66 [INFO] [stderr] 13: 0x7fe49fd05fd2 - ::drop::h495ed98866d8bfb3 [INFO] [stderr] 14: 0x7fe49d1dd3c6 - core::ptr::drop_in_place::ha93cdd6197a816d8 [INFO] [stderr] 15: 0x7fe49d1e2c86 - as core::ops::drop::Drop>::drop::hf8f7296d4cae1b84 [INFO] [stderr] 16: 0x7fe49d16a0ad - core::ptr::drop_in_place::h97a7714a4d037788 [INFO] [stderr] 17: 0x7fe49d15cc62 - rustc_interface::interface::run_compiler_in_existing_thread_pool::hffe7582a60c813e5 [INFO] [stderr] 18: 0x7fe49d19b9dd - scoped_tls::ScopedKey::set::hd492716dbcb33c9b [INFO] [stderr] 19: 0x7fe49d194b82 - rustc_ast::attr::with_globals::heae8a5c465a92c0c [INFO] [stderr] 20: 0x7fe49d1a36f1 - std::sys_common::backtrace::__rust_begin_short_backtrace::he4ce42496761be56 [INFO] [stderr] 21: 0x7fe49d1f7efe - core::ops::function::FnOnce::call_once{{vtable.shim}}::h14f2c73dc54d1525 [INFO] [stderr] 22: 0x7fe49ca90a4a - as core::ops::function::FnOnce>::call_once::hf960b3a908828f8b [INFO] [stderr] at /rustc/8a749131e7beb72f6edacefd2bdcbed3d67b2112/src/liballoc/boxed.rs:1057 [INFO] [stderr] 23: 0x7fe49ca90a4a - as core::ops::function::FnOnce>::call_once::ha9e1e122561af9d9 [INFO] [stderr] at /rustc/8a749131e7beb72f6edacefd2bdcbed3d67b2112/src/liballoc/boxed.rs:1057 [INFO] [stderr] 24: 0x7fe49ca90a4a - std::sys::unix::thread::Thread::new::thread_start::h8b0ae441dc3343d4 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 25: 0x7fe49c9d1609 - start_thread [INFO] [stderr] 26: 0x7fe49c8e5103 - __clone [INFO] [stderr] 27: 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 (8a749131e 2020-05-19) 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: could not compile `oxidizing-the-interview`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "eb18cab7859cdeb7f4063ecf84dfa3260776b61a779d6fa85a46761f3ee6710a"` [INFO] running `"docker" "rm" "-f" "eb18cab7859cdeb7f4063ecf84dfa3260776b61a779d6fa85a46761f3ee6710a"` [INFO] [stdout] eb18cab7859cdeb7f4063ecf84dfa3260776b61a779d6fa85a46761f3ee6710a