[INFO] fetching crate scuttle-core 0.4.0...
[INFO] testing scuttle-core-0.4.0 against 1.100.0-beta.1 for beta-1.100-2
[INFO] extracting crate scuttle-core 0.4.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate scuttle-core 0.4.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate scuttle-core 0.4.0
[INFO] tweaked toml for crates.io crate scuttle-core 0.4.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scuttle-core 0.4.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate scuttle-core 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc
[INFO] running `Command { std: "docker" "start" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling glob v0.3.2
[INFO] [stderr]    Compiling rustc-hash v2.1.1
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling bindgen v0.71.1
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling either v1.13.0
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling linux-raw-sys v0.9.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling anyhow v1.0.98
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling syn v2.0.96
[INFO] [stderr]    Compiling jobserver v0.1.32
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling cc v1.2.20
[INFO] [stderr]    Compiling chrono v0.4.40
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling cpu-time v1.0.0
[INFO] [stderr]    Compiling regex v1.10.6
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling pigeons v0.1.1
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling visibility v0.1.1
[INFO] [stderr]    Compiling rustsat v0.7.1
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling scuttle-proc v0.2.0
[INFO] [stderr]    Compiling rustsat-cadical v0.7.1
[INFO] [stderr]    Compiling cadical-veripb-tracer v0.1.0
[INFO] [stderr]    Compiling scuttle-core v0.4.0 (/opt/rustwide/workdir)
[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(try_trait_v2)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MaybeTerminated<!>: Residual<T>` is not satisfied
[INFO] [stdout]   --> src/termination.rs:68:21
[INFO] [stdout]    |
[INFO] [stdout] 68 |     type Residual = MaybeTerminated<std::convert::Infallible>;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]    |
[INFO] [stdout] help: the nightly-only, unstable trait `Residual<T>` is not implemented for `MaybeTerminated<!>`
[INFO] [stdout]   --> src/termination.rs:47:1
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub enum MaybeTerminated<T = ()> {
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: the following other types implement trait `Residual<O>`
[INFO] [stdout]   --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/option.rs:2908:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Option<!>`
[INFO] [stdout]   --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:2206:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Result<!, E>`
[INFO] [stdout] note: required by a bound in `std::ops::Try::Residual`
[INFO] [stdout]   --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/try_trait.rs:160:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `MaybeTerminatedError<!>: Residual<T>` is not satisfied
[INFO] [stdout]    --> src/termination.rs:137:21
[INFO] [stdout]     |
[INFO] [stdout] 137 |     type Residual = MaybeTerminatedError<std::convert::Infallible>;
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
[INFO] [stdout]     |
[INFO] [stdout] help: the nightly-only, unstable trait `Residual<T>` is not implemented for `MaybeTerminatedError<!>`
[INFO] [stdout]    --> src/termination.rs:93:1
[INFO] [stdout]     |
[INFO] [stdout]  93 | pub enum MaybeTerminatedError<T = ()> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: the following other types implement trait `Residual<O>`
[INFO] [stdout]    --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/option.rs:2908:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Option<!>`
[INFO] [stdout]    --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/result.rs:2206:0
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Result<!, E>`
[INFO] [stdout] note: required by a bound in `std::ops::Try::Residual`
[INFO] [stdout]    --> /rustc/e3feeb59cd1bdd011a2bfcc0747b55125d9b8527/library/core/src/ops/try_trait.rs:160:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scuttle-core` (lib) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc", kill_on_drop: false }`
[INFO] [stdout] 8f514ea60a50c9ea9fcd7342b9242380319e96b06005736d07fea1e0a5df41dc
