[INFO] crate softposit 0.3.9 is already in cache
[INFO] checking softposit-0.3.9 against try#00e4530a79c42b21a6ca2ac1edb597c90d21f89f for pr-64672
[INFO] extracting crate softposit 0.3.9 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate softposit 0.3.9 on toolchain 00e4530a79c42b21a6ca2ac1edb597c90d21f89f
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate softposit 0.3.9
[INFO] removed 1 missing examples
[INFO] finished tweaking crates.io crate softposit 0.3.9
[INFO] tweaked toml for crates.io crate softposit 0.3.9 written to work/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate softposit 0.3.9 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+00e4530a79c42b21a6ca2ac1edb597c90d21f89f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 81324ae6d3267c4ce80f0cacdceaec1b9ac335b9f57bf55ac56780c2e352f39e
[INFO] running `"docker" "start" "-a" "81324ae6d3267c4ce80f0cacdceaec1b9ac335b9f57bf55ac56780c2e352f39e"`
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking softposit v0.3.9 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]   --> src/quire32/convert.rs:18:6
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl<const N: u32> From<PxE2<{ N }>> for Q32E2 {
[INFO] [stderr]    |      ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]    = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/quire32/convert.rs:151:6
[INFO] [stderr]     |
[INFO] [stderr] 151 | impl<const N: u32> From<Q32E2> for PxE2<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/quire32/convert.rs:159:6
[INFO] [stderr]     |
[INFO] [stderr] 159 | impl<const N: u32> From<&Q32E2> for PxE2<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/quire32.rs:132:6
[INFO] [stderr]     |
[INFO] [stderr] 132 | impl<const N: u32> crate::Quire<PxE2<{ N }>> for Q32E2 {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:401:6
[INFO] [stderr]     |
[INFO] [stderr] 401 | impl<const N: u32> From<P32E2> for PxE2<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:443:6
[INFO] [stderr]     |
[INFO] [stderr] 443 | impl<const N: u32> From<P16E1> for PxE2<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:517:6
[INFO] [stderr]     |
[INFO] [stderr] 517 | impl<const N: u32> From<P32E2> for PxE1<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:593:6
[INFO] [stderr]     |
[INFO] [stderr] 593 | impl<const N: u32> From<P8E0> for PxE1<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:668:6
[INFO] [stderr]     |
[INFO] [stderr] 668 | impl<const N: u32> From<P8E0> for PxE2<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:737:6
[INFO] [stderr]     |
[INFO] [stderr] 737 | impl<const N: u32> From<P16E1> for PxE1<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:794:6
[INFO] [stderr]     |
[INFO] [stderr] 794 | impl<const M: u32, const N: u32> From<PxE2<{ M }>> for PxE1<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:794:20
[INFO] [stderr]     |
[INFO] [stderr] 794 | impl<const M: u32, const N: u32> From<PxE2<{ M }>> for PxE1<{ N }> {
[INFO] [stderr]     |                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:870:6
[INFO] [stderr]     |
[INFO] [stderr] 870 | impl<const M: u32, const N: u32> From<PxE1<{ M }>> for PxE2<{ N }> {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:870:20
[INFO] [stderr]     |
[INFO] [stderr] 870 | impl<const M: u32, const N: u32> From<PxE1<{ M }>> for PxE2<{ N }> {
[INFO] [stderr]     |                    ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:940:6
[INFO] [stderr]     |
[INFO] [stderr] 940 | impl<const N: u32> From<PxE2<{ N }>> for P32E2 {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:948:6
[INFO] [stderr]     |
[INFO] [stderr] 948 | impl<const N: u32> From<PxE2<{ N }>> for P16E1 {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:956:6
[INFO] [stderr]     |
[INFO] [stderr] 956 | impl<const N: u32> From<PxE2<{ N }>> for P8E0 {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]    --> src/convert.rs:964:6
[INFO] [stderr]     |
[INFO] [stderr] 964 | impl<const N: u32> From<PxE1<{ N }>> for P32E2 {
[INFO] [stderr]     |      ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]     = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/convert.rs:1012:6
[INFO] [stderr]      |
[INFO] [stderr] 1012 | impl<const N: u32> From<PxE1<{ N }>> for P16E1 {
[INFO] [stderr]      |      ^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/convert.rs:1046:6
[INFO] [stderr]      |
[INFO] [stderr] 1046 | impl<const N: u32> From<PxE1<{ N }>> for P8E0 {
[INFO] [stderr]      |      ^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1165:14
[INFO] [stderr]      |
[INFO] [stderr] 1165 |         impl<const N: u32> ops::AddAssign<($posit, $posit)> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1175:14
[INFO] [stderr]      |
[INFO] [stderr] 1175 |         impl<const N: u32> ops::AddAssign<($posit, ($posit, $posit))> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1184:14
[INFO] [stderr]      |
[INFO] [stderr] 1184 |         impl<const N: u32> ops::AddAssign<($posit, ($posit, $posit, $posit))> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1194:14
[INFO] [stderr]      |
[INFO] [stderr] 1194 |         impl<const N: u32> ops::AddAssign<$posit> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1203:14
[INFO] [stderr]      |
[INFO] [stderr] 1203 |         impl<const N: u32> ops::AddAssign<(($posit, $posit), ($posit, $posit))> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1214:14
[INFO] [stderr]      |
[INFO] [stderr] 1214 |         impl<const N: u32> ops::SubAssign<($posit, $posit)> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1224:14
[INFO] [stderr]      |
[INFO] [stderr] 1224 |         impl<const N: u32> ops::SubAssign<$posit> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1233:14
[INFO] [stderr]      |
[INFO] [stderr] 1233 |         impl<const N: u32> ops::SubAssign<($posit, ($posit, $posit))> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1242:14
[INFO] [stderr]      |
[INFO] [stderr] 1242 |         impl<const N: u32> ops::SubAssign<(($posit, $posit), ($posit, $posit))> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:10:1
[INFO] [stderr]      |
[INFO] [stderr] 10   | crate::quire_add_sub_x!(PxE2<{ N }>, Q32E2);
[INFO] [stderr]      | -------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1140:14
[INFO] [stderr]      |
[INFO] [stderr] 1140 |         impl<const N: u32> ops::AddAssign<($posit, [$posit; $i])> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:11:1
[INFO] [stderr]      |
[INFO] [stderr] 11   | crate::quire_add_sub_array_x!(PxE2<{ N }>, Q32E2, 1, 2, 3, 4);
[INFO] [stderr]      | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: const generics are unstable
[INFO] [stderr]     --> src/macros.rs:1150:14
[INFO] [stderr]      |
[INFO] [stderr] 1150 |         impl<const N: u32> ops::SubAssign<($posit, [$posit; $i])> for $quire {
[INFO] [stderr]      |              ^^^^^^^^^^^^
[INFO] [stderr]      | 
[INFO] [stderr]     ::: src/quire32/ops.rs:11:1
[INFO] [stderr]      |
[INFO] [stderr] 11   | crate::quire_add_sub_array_x!(PxE2<{ N }>, Q32E2, 1, 2, 3, 4);
[INFO] [stderr]      | -------------------------------------------------------------- in this macro invocation
[INFO] [stderr]      |
[INFO] [stderr]      = note: for more information, see https://github.com/rust-lang/rust/issues/44580
[INFO] [stderr]      = help: add `#![feature(const_generics)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr] error: aborting due to 31 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: could not compile `softposit`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "81324ae6d3267c4ce80f0cacdceaec1b9ac335b9f57bf55ac56780c2e352f39e"`
[INFO] running `"docker" "rm" "-f" "81324ae6d3267c4ce80f0cacdceaec1b9ac335b9f57bf55ac56780c2e352f39e"`
[INFO] [stdout] 81324ae6d3267c4ce80f0cacdceaec1b9ac335b9f57bf55ac56780c2e352f39e