[INFO] fetching crate mdbook-chapter-zero 0.1.0... [INFO] checking mdbook-chapter-zero-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate mdbook-chapter-zero 0.1.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate mdbook-chapter-zero 0.1.0 [INFO] finished tweaking crates.io crate mdbook-chapter-zero 0.1.0 [INFO] tweaked toml for crates.io crate mdbook-chapter-zero 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mdbook-chapter-zero 0.1.0 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate mdbook-chapter-zero 0.1.0 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bfa683e26116f0d25a3ba04fcbe8b249650863b56a5c5b13850661314eb8ad86 [INFO] running `Command { std: "docker" "start" "-a" "bfa683e26116f0d25a3ba04fcbe8b249650863b56a5c5b13850661314eb8ad86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bfa683e26116f0d25a3ba04fcbe8b249650863b56a5c5b13850661314eb8ad86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bfa683e26116f0d25a3ba04fcbe8b249650863b56a5c5b13850661314eb8ad86", kill_on_drop: false }` [INFO] [stdout] bfa683e26116f0d25a3ba04fcbe8b249650863b56a5c5b13850661314eb8ad86 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5dd7b7223931e7b1064a604d1023d6389f70bf4adc68989071ee120799d5d7bf [INFO] running `Command { std: "docker" "start" "-a" "5dd7b7223931e7b1064a604d1023d6389f70bf4adc68989071ee120799d5d7bf", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Checking memchr v2.7.1 [INFO] [stderr] Compiling thiserror v1.0.58 [INFO] [stderr] Compiling rustix v0.38.31 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Checking linux-raw-sys v0.4.13 [INFO] [stderr] Checking utf8parse v0.2.1 [INFO] [stderr] Checking regex-syntax v0.8.2 [INFO] [stderr] Checking anstyle-parse v0.2.3 [INFO] [stderr] Checking anstyle v1.0.6 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking anstyle-query v1.0.2 [INFO] [stderr] Compiling ucd-trie v0.1.6 [INFO] [stderr] Checking colorchoice v1.0.0 [INFO] [stderr] Checking anstream v0.6.13 [INFO] [stderr] Compiling once_cell v1.19.0 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling serde_json v1.0.114 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling unicase v2.7.0 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking strsim v0.11.0 [INFO] [stderr] Compiling syn v2.0.53 [INFO] [stderr] Checking clap_lex v0.7.0 [INFO] [stderr] Checking ryu v1.0.17 [INFO] [stderr] Checking itoa v1.0.10 [INFO] [stderr] Compiling anyhow v1.0.81 [INFO] [stderr] Compiling pulldown-cmark v0.10.0 [INFO] [stderr] Checking fastrand v2.0.1 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Compiling semver v1.0.22 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking pulldown-cmark-escape v0.10.0 [INFO] [stderr] Checking topological-sort v0.2.2 [INFO] [stderr] Checking shlex v1.3.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking chrono v0.4.35 [INFO] [stderr] Checking terminal_size v0.3.0 [INFO] [stderr] Checking tempfile v3.10.1 [INFO] [stderr] Checking clap_builder v4.5.2 [INFO] [stderr] Compiling thiserror-impl v1.0.58 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Compiling pest v2.7.8 [INFO] [stderr] Checking regex v1.10.3 [INFO] [stderr] Checking bstr v1.9.1 [INFO] [stderr] Checking env_filter v0.1.0 [INFO] [stderr] Checking env_logger v0.11.3 [INFO] [stderr] Checking clap v4.5.3 [INFO] [stderr] Checking clap_complete v4.5.1 [INFO] [stderr] Checking opener v0.6.1 [INFO] [stderr] Compiling pest_meta v2.7.8 [INFO] [stderr] Compiling pest_generator v2.7.8 [INFO] [stderr] Compiling pest_derive v2.7.8 [INFO] [stderr] Checking toml v0.5.11 [INFO] [stderr] Checking handlebars v5.1.0 [INFO] [stderr] Checking mdbook v0.4.37 [INFO] [stderr] Checking mdbook-chapter-zero v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error: could not compile `mdbook-chapter-zero` (lib) due to 2 previous errors [INFO] [stdout] error: this type will no longer be must used: ControlFlow, Vec> [INFO] [stdout] --> src/lib.rs:70:26 [INFO] [stdout] | [INFO] [stdout] 70 | cfg.levels = levels.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:70:26 [INFO] [stdout] | [INFO] [stdout] 70 | cfg.levels = levels.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: ControlFlow, Vec> [INFO] [stdout] --> src/lib.rs:70:26 [INFO] [stdout] | [INFO] [stdout] 70 | cfg.levels = levels.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result, Infallible> [INFO] [stdout] --> src/lib.rs:70:26 [INFO] [stdout] | [INFO] [stdout] 70 | cfg.levels = levels.try_into()?; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `mdbook-chapter-zero` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "5dd7b7223931e7b1064a604d1023d6389f70bf4adc68989071ee120799d5d7bf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5dd7b7223931e7b1064a604d1023d6389f70bf4adc68989071ee120799d5d7bf", kill_on_drop: false }` [INFO] [stdout] 5dd7b7223931e7b1064a604d1023d6389f70bf4adc68989071ee120799d5d7bf