[INFO] fetching crate string-err 0.1.1... [INFO] testing string-err-0.1.1 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate string-err 0.1.1 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate string-err 0.1.1 [INFO] finished tweaking crates.io crate string-err 0.1.1 [INFO] tweaked toml for crates.io crate string-err 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate string-err 0.1.1 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "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-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b638d06c0bb4679fd220dcdd7ee6eca9e5179f308d9c6ad8c79c43d6e2afa6c2 [INFO] running `Command { std: "docker" "start" "-a" "b638d06c0bb4679fd220dcdd7ee6eca9e5179f308d9c6ad8c79c43d6e2afa6c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b638d06c0bb4679fd220dcdd7ee6eca9e5179f308d9c6ad8c79c43d6e2afa6c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b638d06c0bb4679fd220dcdd7ee6eca9e5179f308d9c6ad8c79c43d6e2afa6c2", kill_on_drop: false }` [INFO] [stdout] b638d06c0bb4679fd220dcdd7ee6eca9e5179f308d9c6ad8c79c43d6e2afa6c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ba4f07eaaee92a517a5f24bd6c6db80e7e375052c4e7979a62b90c03c80a04bf [INFO] running `Command { std: "docker" "start" "-a" "ba4f07eaaee92a517a5f24bd6c6db80e7e375052c4e7979a62b90c03c80a04bf", kill_on_drop: false }` [INFO] [stderr] Compiling string-err v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> src/lib.rs:22:2 [INFO] [stdout] | [INFO] [stdout] 22 | external_doc, [INFO] [stdout] | ^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.54.0; see for more information [INFO] [stdout] = note: use #[doc = include_str!("filename")] instead, which handles macro invocations [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0407]: method `backtrace` is not a member of trait `Error` [INFO] [stdout] --> src/error.rs:17:2 [INFO] [stdout] | [INFO] [stdout] 17 | fn backtrace(&self) -> Option<&Backtrace> { self.backtrace_maybe() } [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a member of trait `Error` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stdout] --> src/lib.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | / #![feature( [INFO] [stdout] 19 | | specialization, [INFO] [stdout] 20 | | backtrace, [INFO] [stdout] 21 | | debug_non_exhaustive, [INFO] [stdout] 22 | | external_doc, [INFO] [stdout] 23 | | try_trait, [INFO] [stdout] 24 | | )] [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:19:2 [INFO] [stdout] | [INFO] [stdout] 19 | specialization, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #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: unknown `doc` attribute `include` [INFO] [stdout] --> src/lib.rs:85:7 [INFO] [stdout] | [INFO] [stdout] 85 | #[doc(include = "../README.md")] [INFO] [stdout] | ------^^^^^^^^^^^^^^^^^^^^^^^^-- help: use `doc = include_str!` instead: `#[doc = include_str!("../README.md")]` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(invalid_doc_attributes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `backtrace` has been stable since 1.65.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:20:2 [INFO] [stdout] | [INFO] [stdout] 20 | backtrace, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `debug_non_exhaustive` has been stable since 1.53.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:21:2 [INFO] [stdout] | [INFO] [stdout] 21 | debug_non_exhaustive, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0635]: feature `try_trait` has been renamed to `try_trait_v2` [INFO] [stdout] --> src/lib.rs:23:2 [INFO] [stdout] | [INFO] [stdout] 23 | try_trait, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2` [INFO] [stdout] --> src/result_ext.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::ops::Try; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #84277 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2` [INFO] [stdout] --> src/result_ext.rs:16:16 [INFO] [stdout] | [INFO] [stdout] 16 | Self: Sized + Try [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #84277 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: use of unstable library feature `try_trait_v2` [INFO] [stdout] --> src/result_ext.rs:30:17 [INFO] [stdout] | [INFO] [stdout] 30 | impl ResultExt for T {} [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #84277 for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0220]: associated type `Ok` not found for `Self` [INFO] [stdout] --> src/result_ext.rs:23:85 [INFO] [stdout] | [INFO] [stdout] 23 | fn map_err_msg>(self, msg: impl Into) -> Result> { [INFO] [stdout] | ^^ associated type `Ok` not found [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0220]: associated type `Error` not found for `Self` [INFO] [stdout] --> src/result_ext.rs:23:31 [INFO] [stdout] | [INFO] [stdout] 23 | fn map_err_msg>(self, msg: impl Into) -> Result> { [INFO] [stdout] | ^^^^^ associated type `Error` not found [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `into_result` found for type parameter `Self` in the current scope [INFO] [stdout] --> src/result_ext.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 14 | pub trait ResultExt [INFO] [stdout] | ------------------- method `into_result` not found for this type parameter [INFO] [stdout] ... [INFO] [stdout] 24 | self.into_result() [INFO] [stdout] | ^^^^^^^^^^^ method not found in `Self` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0220, E0407, E0554, E0557, E0599, E0635, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0220`. [INFO] [stdout] [INFO] [stderr] error: could not compile `string-err` (lib) due to 10 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "ba4f07eaaee92a517a5f24bd6c6db80e7e375052c4e7979a62b90c03c80a04bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ba4f07eaaee92a517a5f24bd6c6db80e7e375052c4e7979a62b90c03c80a04bf", kill_on_drop: false }` [INFO] [stdout] ba4f07eaaee92a517a5f24bd6c6db80e7e375052c4e7979a62b90c03c80a04bf