[INFO] crate arrav 0.2.0 is already in cache [INFO] checking arrav-0.2.0 against try#1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 for pr-69530 [INFO] extracting crate arrav 0.2.0 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate arrav 0.2.0 on toolchain 1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate arrav 0.2.0 [INFO] finished tweaking crates.io crate arrav 0.2.0 [INFO] tweaked toml for crates.io crate arrav 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1cdff26b98d4c2377ea6ae8929f1daebbf58f2b0" "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] 3d8e4612bb2fb8d60722f9c2fdd0704774325b826021c8a1e92b02d6d88c7efa [INFO] running `"docker" "start" "-a" "3d8e4612bb2fb8d60722f9c2fdd0704774325b826021c8a1e92b02d6d88c7efa"` [INFO] [stderr] Checking oorandom v11.1.1 [INFO] [stderr] Checking arrav v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking tinytemplate v1.0.4 [INFO] [stderr] Checking plotters v0.2.13 [INFO] [stderr] error[E0658]: specialization is unstable [INFO] [stderr] --> src/lib.rs:853:5 [INFO] [stderr] | [INFO] [stderr] 853 | / default fn fast_len(&self) -> usize { [INFO] [stderr] 854 | | self.slow_len() [INFO] [stderr] 855 | | } [INFO] [stderr] | |_____^ [INFO] [stderr] | [INFO] [stderr] = note: see issue #31844 for more information [INFO] [stderr] = help: add `#![feature(specialization)]` to the crate attributes to enable [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 957 | specialize!(u8, 32, 2, u8_32); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 958 | specialize!(u8, 24, 2, u8_24); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 959 | specialize!(u8, 16, 2, u8_16); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 960 | specialize!(u16, 16, 2, u16_16); [INFO] [stderr] | -------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 961 | specialize!(u16, 8, 2, u16_8); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 962 | specialize!(u16, 4, 1, u16_4); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 963 | specialize!(u32, 8, 2, u32_8); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 964 | specialize!(u32, 4, 1, u32_4); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 967 | specialize!(i8, 32, 2, i8_32); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 968 | specialize!(i8, 24, 2, i8_24); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 969 | specialize!(i8, 16, 2, i8_16); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 970 | specialize!(i16, 16, 2, i16_16); [INFO] [stderr] | -------------------------------- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 971 | specialize!(i16, 8, 2, i16_8); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 972 | specialize!(i16, 4, 1, i16_4); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 973 | specialize!(i32, 8, 2, i32_8); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error[E0119]: conflicting implementations of trait `SpecializedLen` for type `Arrav`: [INFO] [stderr] --> src/lib.rs:861:9 [INFO] [stderr] | [INFO] [stderr] 840 | / impl SpecializedLen for Arrav [INFO] [stderr] 841 | | where [INFO] [stderr] 842 | | T: Copy + Sentinel, [INFO] [stderr] 843 | | [T; N]: core::array::LengthAtMost32, [INFO] [stderr] ... | [INFO] [stderr] 855 | | } [INFO] [stderr] 856 | | } [INFO] [stderr] | |_- first implementation here [INFO] [stderr] ... [INFO] [stderr] 861 | impl SpecializedLen for Arrav<$t, $width> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `Arrav` [INFO] [stderr] ... [INFO] [stderr] 974 | specialize!(i32, 4, 1, i32_4); [INFO] [stderr] | ------------------------------ in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] error: aborting due to 17 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0119, E0658. [INFO] [stderr] For more information about an error, try `rustc --explain E0119`. [INFO] [stderr] error: could not compile `arrav`. [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: build failed [INFO] running `"docker" "inspect" "3d8e4612bb2fb8d60722f9c2fdd0704774325b826021c8a1e92b02d6d88c7efa"` [INFO] running `"docker" "rm" "-f" "3d8e4612bb2fb8d60722f9c2fdd0704774325b826021c8a1e92b02d6d88c7efa"` [INFO] [stdout] 3d8e4612bb2fb8d60722f9c2fdd0704774325b826021c8a1e92b02d6d88c7efa