[INFO] updating cached repository https://github.com/mgattozzi/oxidizing-the-technical-interview [INFO] running `Command { std: "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", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b536ec33119b316c2527476541def377c63b14b4 [INFO] checking mgattozzi/oxidizing-the-technical-interview against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmgattozzi%2Foxidizing-the-technical-interview" "/workspace/builds/worker-1/source", kill_on_drop: false }` [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 4fb54ed484e2239a3e9eff3be17df00d2a162be3 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b867ba96008f98cdbfacfe141dac8ba76d00c257642a47a6ee944275a01ce81d [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b867ba96008f98cdbfacfe141dac8ba76d00c257642a47a6ee944275a01ce81d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b867ba96008f98cdbfacfe141dac8ba76d00c257642a47a6ee944275a01ce81d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b867ba96008f98cdbfacfe141dac8ba76d00c257642a47a6ee944275a01ce81d", kill_on_drop: false }` [INFO] [stdout] b867ba96008f98cdbfacfe141dac8ba76d00c257642a47a6ee944275a01ce81d [INFO] running `Command { std: "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@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 70ef74cbd82426db175e4e1ca977eeff78a14adae2c9a3cee4263a8d53d9a9c1 [INFO] running `Command { std: "docker" "start" "-a" "70ef74cbd82426db175e4e1ca977eeff78a14adae2c9a3cee4263a8d53d9a9c1", kill_on_drop: false }` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Checking oxidizing-the-interview v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0152]: found duplicate lang item `sized` [INFO] [stdout] --> src/main.rs:47:1 [INFO] [stdout] | [INFO] [stdout] 47 | pub trait Sized {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `freeze` [INFO] [stdout] --> src/main.rs:49:1 [INFO] [stdout] | [INFO] [stdout] 49 | auto trait Freeze {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `receiver` [INFO] [stdout] --> src/main.rs:54:1 [INFO] [stdout] | [INFO] [stdout] 54 | trait Receiver {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `index` [INFO] [stdout] --> src/main.rs:56:1 [INFO] [stdout] | [INFO] [stdout] 56 | / trait Index { [INFO] [stdout] 57 | | type Output: ?Sized; [INFO] [stdout] 58 | | fn index(&self, index: Idx) -> &Self::Output; [INFO] [stdout] 59 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `copy` [INFO] [stdout] --> src/main.rs:79:1 [INFO] [stdout] | [INFO] [stdout] 79 | trait Copy: Clone {} [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `eq` [INFO] [stdout] --> src/main.rs:87:1 [INFO] [stdout] | [INFO] [stdout] 87 | / trait PartialEq { [INFO] [stdout] 88 | | fn eq(&self, other: &Rhs) -> bool; [INFO] [stdout] 89 | | fn ne(&self, other: &Rhs) -> bool { [INFO] [stdout] 90 | | !self.eq(other) [INFO] [stdout] 91 | | } [INFO] [stdout] 92 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `partial_ord` [INFO] [stdout] --> src/main.rs:94:1 [INFO] [stdout] | [INFO] [stdout] 94 | / trait PartialOrd: PartialEq { [INFO] [stdout] 95 | | fn partial_cmp(&self, other: &Rhs) -> Option; [INFO] [stdout] 96 | | fn lt(&self, other: &Rhs) -> bool { [INFO] [stdout] 97 | | matches!(self.partial_cmp(other), Some(Less)) [INFO] [stdout] ... | [INFO] [stdout] 107 | | } [INFO] [stdout] 108 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `not` [INFO] [stdout] --> src/main.rs:110:1 [INFO] [stdout] | [INFO] [stdout] 110 | / trait Not { [INFO] [stdout] 111 | | type Output; [INFO] [stdout] 112 | | [INFO] [stdout] 113 | | fn not(self) -> Self::Output; [INFO] [stdout] 114 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `neg` [INFO] [stdout] --> src/main.rs:116:1 [INFO] [stdout] | [INFO] [stdout] 116 | / trait Neg { [INFO] [stdout] 117 | | type Output; [INFO] [stdout] 118 | | fn neg(self) -> Self::Output; [INFO] [stdout] 119 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `sub` [INFO] [stdout] --> src/main.rs:121:1 [INFO] [stdout] | [INFO] [stdout] 121 | / trait Sub { [INFO] [stdout] 122 | | type Output; [INFO] [stdout] 123 | | fn sub(self, rhs: Rhs) -> Self::Output; [INFO] [stdout] 124 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `slice` [INFO] [stdout] --> src/main.rs:129:1 [INFO] [stdout] | [INFO] [stdout] 129 | / impl [T] { [INFO] [stdout] 130 | | #[allow(unused_attributes)] [INFO] [stdout] 131 | | #[allow_internal_unstable(const_fn_union)] [INFO] [stdout] 132 | | const fn len(&self) -> usize { [INFO] [stdout] ... | [INFO] [stdout] 142 | | } [INFO] [stdout] 143 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `const_ptr` [INFO] [stdout] --> src/main.rs:146:1 [INFO] [stdout] | [INFO] [stdout] 146 | / impl *const T { [INFO] [stdout] 147 | | unsafe fn add(self, count: usize) -> Self [INFO] [stdout] 148 | | where [INFO] [stdout] 149 | | T: Sized, [INFO] [stdout] ... | [INFO] [stdout] 159 | | } [INFO] [stdout] 160 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `mut_ptr` [INFO] [stdout] --> src/main.rs:162:1 [INFO] [stdout] | [INFO] [stdout] 162 | / impl *mut T { [INFO] [stdout] 163 | | unsafe fn add(self, count: usize) -> *mut T [INFO] [stdout] 164 | | where [INFO] [stdout] 165 | | T: Sized, [INFO] [stdout] ... | [INFO] [stdout] 174 | | } [INFO] [stdout] 175 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `core` (which `std` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0152]: found duplicate lang item `start` [INFO] [stdout] --> src/main.rs:264:1 [INFO] [stdout] | [INFO] [stdout] 264 | / fn start(main: fn() -> T, _: isize, _: *const *const u8) -> isize { [INFO] [stdout] 265 | | main().report() as isize [INFO] [stdout] 266 | | } [INFO] [stdout] | |_^ [INFO] [stdout] | [INFO] [stdout] = note: the lang item is first defined in crate `std` (which `test` depends on) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' panicked at 'no errors encountered even though `delay_span_bug` issued', src/librustc_errors/lib.rs:366:17 [INFO] [stdout] error: internal compiler error: broken MIR in DefId(0:87 ~ oxidizing_the_interview[365e]::{{impl}}[7]::neg[0]) (NoSolution): could not prove Binder(TraitPredicate()) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stdout] error: aborting due to 14 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0152`. [INFO] [stdout] [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: 0x7f33b273ab05 - backtrace::backtrace::libunwind::trace::hc3f32ba24d88242a [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7f33b273ab05 - backtrace::backtrace::trace_unsynchronized::haad2590418eb4c26 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f33b273ab05 - std::sys_common::backtrace::_print_fmt::h4397782fec59f199 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f33b273ab05 - ::fmt::h39652f0242246c81 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f33b277801c - core::fmt::write::h540ac4a6a1232abc [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x7f33b272ce93 - std::io::Write::write_fmt::haa03b5883ee9e297 [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7f33b273fb20 - std::sys_common::backtrace::_print::ha6d9bdf9f438acec [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f33b273fb20 - std::sys_common::backtrace::print::ha1fba17a8e5f6bc7 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f33b273fb20 - std::panicking::default_hook::{{closure}}::ha3c41e6964bb5c0e [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f33b273f86c - std::panicking::default_hook::h39b8550780094336 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f33b2e4d613 - rustc_driver::report_ice::hb9af53ca6f9d0c07 [INFO] [stderr] 11: 0x7f33b27401cc - std::panicking::rust_panic_with_hook::hc8b48ce48004c103 [INFO] [stderr] at src/libstd/panicking.rs:481 [INFO] [stderr] 12: 0x7f33b5990c3e - std::panicking::begin_panic::hf3ae90635776517b [INFO] [stderr] 13: 0x7f33b59c7ff2 - ::drop::h00c81f19bd18a0e4 [INFO] [stderr] 14: 0x7f33b2eb37b6 - core::ptr::drop_in_place::h72a1ea0f55647156 [INFO] [stderr] 15: 0x7f33b2eb96c6 - as core::ops::drop::Drop>::drop::h48cecf1acfde3dcb [INFO] [stderr] 16: 0x7f33b2ed795d - core::ptr::drop_in_place::h82df985735cfbbc0 [INFO] [stderr] 17: 0x7f33b2ecade5 - rustc_span::with_source_map::h23198f6ce2bdb18e [INFO] [stderr] 18: 0x7f33b2e5a8e8 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h730980a453aa7a11 [INFO] [stderr] 19: 0x7f33b2e4eecd - scoped_tls::ScopedKey::set::h8661690e88d60ed1 [INFO] [stderr] 20: 0x7f33b2e5c006 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha804827f90fb1c14 [INFO] [stderr] 21: 0x7f33b2e3908e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc12de39f9c7fecc3 [INFO] [stderr] 22: 0x7f33b274f92a - as core::ops::function::FnOnce>::call_once::h83f42f6daae90563 [INFO] [stderr] at /rustc/4fb54ed484e2239a3e9eff3be17df00d2a162be3/src/liballoc/boxed.rs:1076 [INFO] [stderr] 23: 0x7f33b274f92a - as core::ops::function::FnOnce>::call_once::hd254c5c17db8b10a [INFO] [stderr] at /rustc/4fb54ed484e2239a3e9eff3be17df00d2a162be3/src/liballoc/boxed.rs:1076 [INFO] [stderr] 24: 0x7f33b274f92a - std::sys::unix::thread::Thread::new::thread_start::h62c1349f59256f0d [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 25: 0x7f33b2691609 - start_thread [INFO] [stderr] 26: 0x7f33b25a5103 - __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 1.46.0-nightly (4fb54ed48 2020-06-14) 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 `Command { std: "docker" "inspect" "70ef74cbd82426db175e4e1ca977eeff78a14adae2c9a3cee4263a8d53d9a9c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70ef74cbd82426db175e4e1ca977eeff78a14adae2c9a3cee4263a8d53d9a9c1", kill_on_drop: false }` [INFO] [stdout] 70ef74cbd82426db175e4e1ca977eeff78a14adae2c9a3cee4263a8d53d9a9c1