[INFO] cloning repository https://github.com/nilsso/quadratic-sieve-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nilsso/quadratic-sieve-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsso%2Fquadratic-sieve-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsso%2Fquadratic-sieve-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b666ca8965fe6fb9337213aa732858aa10d264d4
[INFO] checking nilsso/quadratic-sieve-rs against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnilsso%2Fquadratic-sieve-rs" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nilsso/quadratic-sieve-rs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nilsso/quadratic-sieve-rs
[INFO] finished tweaking git repo https://github.com/nilsso/quadratic-sieve-rs
[INFO] tweaked toml for git repo https://github.com/nilsso/quadratic-sieve-rs written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/nilsso/quadratic-sieve-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f198cd4a8112cf572a640f446a938152af4bc64325fafdfce95cb3a5e0f463c7
[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" "f198cd4a8112cf572a640f446a938152af4bc64325fafdfce95cb3a5e0f463c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f198cd4a8112cf572a640f446a938152af4bc64325fafdfce95cb3a5e0f463c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f198cd4a8112cf572a640f446a938152af4bc64325fafdfce95cb3a5e0f463c7", kill_on_drop: false }`
[INFO] [stdout] f198cd4a8112cf572a640f446a938152af4bc64325fafdfce95cb3a5e0f463c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 26e0092e116f3ccc3a4d8311ddad180259142d0ff79a0a83ce947b26533d88a1
[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" "26e0092e116f3ccc3a4d8311ddad180259142d0ff79a0a83ce947b26533d88a1", kill_on_drop: false }`
[INFO] [stderr]     Checking array-init v2.0.0
[INFO] [stderr]     Checking getrandom v0.2.2
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking quadratic-sieve v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(array_windows)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(maybe_uninit_array_assume_init)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_chunks)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(array_windows)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(bool_to_option)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(const_evaluatable_checked)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_generics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(maybe_uninit_array_assume_init)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(maybe_uninit_uninit_array)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 242 | impl_integer_signed!(i8, i16, i32, i64);
[INFO] [stdout]     | ---------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'int_log'
[INFO] [stdout]    --> src/integers.rs:200:24
[INFO] [stdout]     |
[INFO] [stdout] 200 |             self.abs().log2() + 1
[INFO] [stdout]     |                        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 | impl_integer_unsigned!(u8, u16, u32, u64);
[INFO] [stdout]     | ------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #70887 <https://github.com/rust-lang/rust/issues/70887> for more information
[INFO] [stdout]     = note: this error originates in the macro `impl_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `quadratic-sieve` due to 17 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0554, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "26e0092e116f3ccc3a4d8311ddad180259142d0ff79a0a83ce947b26533d88a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26e0092e116f3ccc3a4d8311ddad180259142d0ff79a0a83ce947b26533d88a1", kill_on_drop: false }`
[INFO] [stdout] 26e0092e116f3ccc3a4d8311ddad180259142d0ff79a0a83ce947b26533d88a1
