[INFO] fetching crate rc-u8-reader 2.0.16... [INFO] testing rc-u8-reader-2.0.16 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate rc-u8-reader 2.0.16 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate rc-u8-reader 2.0.16 [INFO] finished tweaking crates.io crate rc-u8-reader 2.0.16 [INFO] tweaked toml for crates.io crate rc-u8-reader 2.0.16 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rc-u8-reader 2.0.16 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] [stderr] Updating crates.io index [INFO] [stderr] Locking 3 packages to latest compatible versions [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] dc1dbaed604071d9875f9e2e3b25fbaccfa36fb8d89f0fde51702d996ab3efd0 [INFO] running `Command { std: "docker" "start" "-a" "dc1dbaed604071d9875f9e2e3b25fbaccfa36fb8d89f0fde51702d996ab3efd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dc1dbaed604071d9875f9e2e3b25fbaccfa36fb8d89f0fde51702d996ab3efd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc1dbaed604071d9875f9e2e3b25fbaccfa36fb8d89f0fde51702d996ab3efd0", kill_on_drop: false }` [INFO] [stdout] dc1dbaed604071d9875f9e2e3b25fbaccfa36fb8d89f0fde51702d996ab3efd0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] fd82c35fea02d03bfa8bbb8f803e57b162d8e9408cc9b6bd5b723d1d672b24e0 [INFO] running `Command { std: "docker" "start" "-a" "fd82c35fea02d03bfa8bbb8f803e57b162d8e9408cc9b6bd5b723d1d672b24e0", kill_on_drop: false }` [INFO] [stderr] Compiling debug-helper v0.3.13 [INFO] [stderr] Compiling rc-u8-reader v2.0.16 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | #![cfg_attr(feature = "nightly", feature(read_initializer, seek_convenience))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `tokio` [INFO] [stdout] = help: consider adding `nightly` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s [INFO] running `Command { std: "docker" "inspect" "fd82c35fea02d03bfa8bbb8f803e57b162d8e9408cc9b6bd5b723d1d672b24e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd82c35fea02d03bfa8bbb8f803e57b162d8e9408cc9b6bd5b723d1d672b24e0", kill_on_drop: false }` [INFO] [stdout] fd82c35fea02d03bfa8bbb8f803e57b162d8e9408cc9b6bd5b723d1d672b24e0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b937bf5c5cad086b9b218996eb62dc8f8c8b9ee097b186c52a95e013993742b8 [INFO] running `Command { std: "docker" "start" "-a" "b937bf5c5cad086b9b218996eb62dc8f8c8b9ee097b186c52a95e013993742b8", kill_on_drop: false }` [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | #![cfg_attr(feature = "nightly", feature(read_initializer, seek_convenience))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `tokio` [INFO] [stdout] = help: consider adding `nightly` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling rc-u8-reader v2.0.16 (/opt/rustwide/workdir) [INFO] [stdout] warning: unexpected `cfg` condition value: `nightly` [INFO] [stdout] --> src/lib.rs:86:13 [INFO] [stdout] | [INFO] [stdout] 86 | #![cfg_attr(feature = "nightly", feature(read_initializer, seek_convenience))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: expected values for `feature` are: `tokio` [INFO] [stdout] = help: consider adding `nightly` as a feature in `Cargo.toml` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s [INFO] running `Command { std: "docker" "inspect" "b937bf5c5cad086b9b218996eb62dc8f8c8b9ee097b186c52a95e013993742b8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b937bf5c5cad086b9b218996eb62dc8f8c8b9ee097b186c52a95e013993742b8", kill_on_drop: false }` [INFO] [stdout] b937bf5c5cad086b9b218996eb62dc8f8c8b9ee097b186c52a95e013993742b8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c4595e22239564175c4e6fd6618aa458a301c81e5c6e983a8622210b6c7cbe01 [INFO] running `Command { std: "docker" "start" "-a" "c4595e22239564175c4e6fd6618aa458a301c81e5c6e983a8622210b6c7cbe01", kill_on_drop: false }` [INFO] [stderr] warning: unexpected `cfg` condition value: `nightly` [INFO] [stderr] --> src/lib.rs:86:13 [INFO] [stderr] | [INFO] [stderr] 86 | #![cfg_attr(feature = "nightly", feature(read_initializer, seek_convenience))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: expected values for `feature` are: `tokio` [INFO] [stderr] = help: consider adding `nightly` as a feature in `Cargo.toml` [INFO] [stderr] = note: see for more information about checking conditional configuration [INFO] [stderr] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stderr] [INFO] [stderr] warning: `rc-u8-reader` (lib) generated 1 warning [INFO] [stderr] warning: `rc-u8-reader` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rc_u8_reader-6e373c2a3c84fe49) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests rc_u8_reader [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - (line 67) ... ok [INFO] [stdout] test src/lib.rs - (line 48) ... ok [INFO] [stdout] test src/lib.rs - (line 9) ... ok [INFO] [stdout] test src/lib.rs - (line 28) ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "c4595e22239564175c4e6fd6618aa458a301c81e5c6e983a8622210b6c7cbe01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4595e22239564175c4e6fd6618aa458a301c81e5c6e983a8622210b6c7cbe01", kill_on_drop: false }` [INFO] [stdout] c4595e22239564175c4e6fd6618aa458a301c81e5c6e983a8622210b6c7cbe01