[INFO] fetching crate nbits_vec 0.1.1...
[INFO] testing nbits_vec-0.1.1 against 1.44.0 for beta-1.45-1
[INFO] extracting crate nbits_vec 0.1.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate nbits_vec 0.1.1 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate nbits_vec 0.1.1
[INFO] finished tweaking crates.io crate nbits_vec 0.1.1
[INFO] tweaked toml for crates.io crate nbits_vec 0.1.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fc759414b1f7dcfd79b0690608d082da8130c8705fe2653f03dc5febf5866a98
[INFO] running `"docker" "start" "-a" "fc759414b1f7dcfd79b0690608d082da8130c8705fe2653f03dc5febf5866a98"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-bigint v0.1.44
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling nbits_vec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> src/lib.rs:28:1
[INFO] [stderr]    |
[INFO] [stderr] 28 | #![feature(alloc)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1243:9
[INFO] [stderr]      |
[INFO] [stderr] 1243 |         try!(write!(f,
[INFO] [stderr]      |         ^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]     --> src/lib.rs:1251:17
[INFO] [stderr]      |
[INFO] [stderr] 1251 |                 try!(write!(f, "{:#x}, ", ptr::read(ptr.offset(i as isize))));
[INFO] [stderr]      |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]   --> src/lib.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 | use alloc::raw_vec::RawVec;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:106:10
[INFO] [stderr]     |
[INFO] [stderr] 106 |     buf: RawVec<Block>,
[INFO] [stderr]     |          ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:133:18
[INFO] [stderr]     |
[INFO] [stderr] 133 |             buf: RawVec::new(),
[INFO] [stderr]     |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:159:18
[INFO] [stderr]     |
[INFO] [stderr] 159 |             buf: RawVec::with_capacity(Self::raw_cap_from(capacity)),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:201:18
[INFO] [stderr]     |
[INFO] [stderr] 201 |             buf: RawVec::from_raw_parts(ptr, Self::raw_cap_from(capacity)),
[INFO] [stderr]     |                  ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1234:18
[INFO] [stderr]      |
[INFO] [stderr] 1234 |             buf: RawVec::new(),
[INFO] [stderr]      |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `cap` found for struct `alloc::raw_vec::RawVec<Block>` in the current scope
[INFO] [stderr]    --> src/lib.rs:221:33
[INFO] [stderr]     |
[INFO] [stderr] 221 |         Self::cap_from(self.buf.cap())
[INFO] [stderr]     |                                 ^^^ private field, not a method
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:249:18
[INFO] [stderr]     |
[INFO] [stderr] 249 |         self.buf.reserve(used_cap, need_extra_cap);
[INFO] [stderr]     |                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:280:18
[INFO] [stderr]     |
[INFO] [stderr] 280 |         self.buf.reserve_exact(used_cap, need_extra_cap);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:302:18
[INFO] [stderr]     |
[INFO] [stderr] 302 |         self.buf.shrink_to_fit(fit_len);
[INFO] [stderr]     |                  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:786:32
[INFO] [stderr]     |
[INFO] [stderr] 786 |             let ptr = self.buf.ptr().offset(bi as isize);
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:795:32
[INFO] [stderr]     |
[INFO] [stderr] 795 |             let ptr = self.buf.ptr().offset(bi as isize);
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:803:32
[INFO] [stderr]     |
[INFO] [stderr] 803 |             let ptr = self.buf.ptr().offset(bi as isize);
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]    --> src/lib.rs:948:28
[INFO] [stderr]     |
[INFO] [stderr] 948 |         let ptr = self.buf.ptr().offset(loc.0 as isize);
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1086:18
[INFO] [stderr]      |
[INFO] [stderr] 1086 |         self.buf.ptr()
[INFO] [stderr]      |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1092:18
[INFO] [stderr]      |
[INFO] [stderr] 1092 |         self.buf.ptr()
[INFO] [stderr]      |                  ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1099:30
[INFO] [stderr]      |
[INFO] [stderr] 1099 |             let p = self.buf.ptr();
[INFO] [stderr]      |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1109:30
[INFO] [stderr]      |
[INFO] [stderr] 1109 |             let p = self.buf.ptr();
[INFO] [stderr]      |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1122:17
[INFO] [stderr]      |
[INFO] [stderr] 1122 |             buf.into_box()
[INFO] [stderr]      |                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0061]: this function takes 1 argument but 0 arguments were supplied
[INFO] [stderr]     --> src/lib.rs:1122:17
[INFO] [stderr]      |
[INFO] [stderr] 1122 |             buf.into_box()
[INFO] [stderr]      |                 ^^^^^^^^- supplied 0 arguments
[INFO] [stderr]      |                 |
[INFO] [stderr]      |                 expected 1 argument
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]     --> src/lib.rs:1122:13
[INFO] [stderr]      |
[INFO] [stderr] 111  | impl<N: Unsigned + NonZero, Block: PrimInt> NbitsVec<N, Block> {
[INFO] [stderr]      |                             ----- this type parameter
[INFO] [stderr] ...
[INFO] [stderr] 1117 |     pub fn into_raw_boxed_slice(mut self) -> Box<[Block]> {
[INFO] [stderr]      |                                              ------------ expected `std::boxed::Box<[Block]>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 1122 |             buf.into_box()
[INFO] [stderr]      |             ^^^^^^^^^^^^^^ expected type parameter `Block`, found union `std::mem::MaybeUninit`
[INFO] [stderr]      |
[INFO] [stderr]      = note: expected struct `std::boxed::Box<[Block]>`
[INFO] [stderr]                 found struct `std::boxed::Box<[std::mem::MaybeUninit<Block>]>`
[INFO] [stderr]      = help: type parameters must be constrained to match other types
[INFO] [stderr]      = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `cap` found for struct `alloc::raw_vec::RawVec<Block>` in the current scope
[INFO] [stderr]     --> src/lib.rs:1140:18
[INFO] [stderr]      |
[INFO] [stderr] 1140 |         self.buf.cap()
[INFO] [stderr]      |                  ^^^ private field, not a method
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `cap` found for struct `alloc::raw_vec::RawVec<Block>` in the current scope
[INFO] [stderr]     --> src/lib.rs:1247:30
[INFO] [stderr]      |
[INFO] [stderr] 1247 |                     self.buf.cap()));
[INFO] [stderr]      |                              ^^^ private field, not a method
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1248:28
[INFO] [stderr]      |
[INFO] [stderr] 1248 |         let ptr = self.buf.ptr();
[INFO] [stderr]      |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `cap` found for struct `alloc::raw_vec::RawVec<Block>` in the current scope
[INFO] [stderr]     --> src/lib.rs:1249:30
[INFO] [stderr]      |
[INFO] [stderr] 1249 |         for i in 0..self.buf.cap() {
[INFO] [stderr]      |                              ^^^ private field, not a method
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1282:47
[INFO] [stderr]      |
[INFO] [stderr] 1282 |             ptr::copy_nonoverlapping(self.buf.ptr(), new.buf.ptr(), self.used_raw_cap());
[INFO] [stderr]      |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'raw_vec_internals': implementation detail
[INFO] [stderr]     --> src/lib.rs:1282:62
[INFO] [stderr]      |
[INFO] [stderr] 1282 |             ptr::copy_nonoverlapping(self.buf.ptr(), new.buf.ptr(), self.used_raw_cap());
[INFO] [stderr]      |                                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BitAnd`
[INFO] [stderr]   --> src/lib.rs:44:16
[INFO] [stderr]    |
[INFO] [stderr] 44 | use std::ops::{BitAnd, BitOr, Shl, Shr};
[INFO] [stderr]    |                ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BitOr`
[INFO] [stderr]   --> src/lib.rs:44:24
[INFO] [stderr]    |
[INFO] [stderr] 44 | use std::ops::{BitAnd, BitOr, Shl, Shr};
[INFO] [stderr]    |                        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Shl`
[INFO] [stderr]   --> src/lib.rs:44:31
[INFO] [stderr]    |
[INFO] [stderr] 44 | use std::ops::{BitAnd, BitOr, Shl, Shr};
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Shr`
[INFO] [stderr]   --> src/lib.rs:44:36
[INFO] [stderr]    |
[INFO] [stderr] 44 | use std::ops::{BitAnd, BitOr, Shl, Shr};
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 28 previous errors; 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0061, E0308, E0554, E0599, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0061`.
[INFO] [stderr] error: could not compile `nbits_vec`.
[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" "fc759414b1f7dcfd79b0690608d082da8130c8705fe2653f03dc5febf5866a98"`
[INFO] running `"docker" "rm" "-f" "fc759414b1f7dcfd79b0690608d082da8130c8705fe2653f03dc5febf5866a98"`
[INFO] [stdout] fc759414b1f7dcfd79b0690608d082da8130c8705fe2653f03dc5febf5866a98