[INFO] fetching crate mask_system_lib 0.1.1...
[INFO] testing mask_system_lib-0.1.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate mask_system_lib 0.1.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate mask_system_lib 0.1.1
[INFO] finished tweaking crates.io crate mask_system_lib 0.1.1
[INFO] tweaked toml for crates.io crate mask_system_lib 0.1.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mask_system_lib 0.1.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 20047b88089b2c498017abfe62eb5cf64a7c5fd204acaddf7a89f3f06b648286
[INFO] running `Command { std: "docker" "start" "-a" "20047b88089b2c498017abfe62eb5cf64a7c5fd204acaddf7a89f3f06b648286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20047b88089b2c498017abfe62eb5cf64a7c5fd204acaddf7a89f3f06b648286", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20047b88089b2c498017abfe62eb5cf64a7c5fd204acaddf7a89f3f06b648286", kill_on_drop: false }`
[INFO] [stdout] 20047b88089b2c498017abfe62eb5cf64a7c5fd204acaddf7a89f3f06b648286
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2438a7236fb96b467d40dcc81433cce7d912ab2c506b1501dede1f7ab4f00d16
[INFO] running `Command { std: "docker" "start" "-a" "2438a7236fb96b467d40dcc81433cce7d912ab2c506b1501dede1f7ab4f00d16", kill_on_drop: false }`
[INFO] [stderr]    Compiling mask_system_lib v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(trait_alias)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(generic_const_exprs)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_type_id)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(associated_type_defaults)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(unsize)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(const_trait_impl)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(specialization)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
[INFO] [stdout]   = help: consider using `min_specialization` instead, which is more stable and complete
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BitAnd`, `default`, `iter::Sum`, and `process::Output`
[INFO] [stdout]   --> src/lib.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::{default, iter::Sum, marker::PhantomData, ops::{BitAnd, Sub}, process::Output, usize};
[INFO] [stdout]    |           ^^^^^^^  ^^^^^^^^^                             ^^^^^^        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Tag_1_2` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:147:10
[INFO] [stdout]     |
[INFO] [stdout] 147 | pub type Tag_1_2 = U2;
[INFO] [stdout]     |          ^^^^^^^ help: convert the identifier to upper camel case: `Tag1_2`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Tag_2_4` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:148:10
[INFO] [stdout]     |
[INFO] [stdout] 148 | pub type Tag_2_4 = U4;
[INFO] [stdout]     |          ^^^^^^^ help: convert the identifier to upper camel case: `Tag2_4`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Tag_3_8` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:149:10
[INFO] [stdout]     |
[INFO] [stdout] 149 | pub type Tag_3_8 = U8;
[INFO] [stdout]     |          ^^^^^^^ help: convert the identifier to upper camel case: `Tag3_8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Tag_4_16` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:150:10
[INFO] [stdout]     |
[INFO] [stdout] 150 | pub type Tag_4_16 = U16;
[INFO] [stdout]     |          ^^^^^^^^ help: convert the identifier to upper camel case: `Tag4_16`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Tag_5_32` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:151:10
[INFO] [stdout]     |
[INFO] [stdout] 151 | pub type Tag_5_32 = U32;
[INFO] [stdout]     |          ^^^^^^^^ help: convert the identifier to upper camel case: `Tag5_32`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Tag_6_64` should have an upper camel case name
[INFO] [stdout]    --> src/lib.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | pub type Tag_6_64 = U64;
[INFO] [stdout]     |          ^^^^^^^^ help: convert the identifier to upper camel case: `Tag6_64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:393:7
[INFO] [stdout]     |
[INFO] [stdout] 393 |     if(b_value > 0){
[INFO] [stdout]     |       ^           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 393 -     if(b_value > 0){
[INFO] [stdout] 393 +     if b_value > 0 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:403:7
[INFO] [stdout]     |
[INFO] [stdout] 403 |     if(marker > 1){
[INFO] [stdout]     |       ^          ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 403 -     if(marker > 1){
[INFO] [stdout] 403 +     if marker > 1 {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]    --> src/lib.rs:418:10
[INFO] [stdout]     |
[INFO] [stdout] 418 |     [(); { validate_max_1::<S,N,B,Content>()}]:,
[INFO] [stdout]     |          ^^                                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 418 -     [(); { validate_max_1::<S,N,B,Content>()}]:,
[INFO] [stdout] 418 +     [(); validate_max_1::<S,N,B,Content>()]:,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around const expression
[INFO] [stdout]    --> src/lib.rs:419:10
[INFO] [stdout]     |
[INFO] [stdout] 419 |     [(); { validate_mask::<S,N,B,Content>() }]:,
[INFO] [stdout]     |          ^^                                ^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout] 419 -     [(); { validate_mask::<S,N,B,Content>() }]:,
[INFO] [stdout] 419 +     [(); validate_mask::<S,N,B,Content>()]:,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:748:19
[INFO] [stdout]     |
[INFO] [stdout] 748 |     type OutPut = (T1);
[INFO] [stdout]     |                   ^  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 748 -     type OutPut = (T1);
[INFO] [stdout] 748 +     type OutPut = T1;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/lib.rs:751:9
[INFO] [stdout]     |
[INFO] [stdout] 751 |         (self.0.clone())
[INFO] [stdout]     |         ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 751 -         (self.0.clone())
[INFO] [stdout] 751 +         self.0.clone()
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_type_id` has been stable since 1.91.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_type_id)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mask_system_lib` (lib) due to 8 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2438a7236fb96b467d40dcc81433cce7d912ab2c506b1501dede1f7ab4f00d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2438a7236fb96b467d40dcc81433cce7d912ab2c506b1501dede1f7ab4f00d16", kill_on_drop: false }`
[INFO] [stdout] 2438a7236fb96b467d40dcc81433cce7d912ab2c506b1501dede1f7ab4f00d16