[INFO] fetching crate rusty-logging 0.5.0...
[INFO] checking rusty-logging-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rusty-logging 0.5.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate rusty-logging 0.5.0
[INFO] finished tweaking crates.io crate rusty-logging 0.5.0
[INFO] tweaked toml for crates.io crate rusty-logging 0.5.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-logging 0.5.0 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 rusty-logging 0.5.0 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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] f60d624da2a7399e9f18d8f407f696e039c1e3fb2d9b9be32d18af1ea04b745d
[INFO] running `Command { std: "docker" "start" "-a" "f60d624da2a7399e9f18d8f407f696e039c1e3fb2d9b9be32d18af1ea04b745d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f60d624da2a7399e9f18d8f407f696e039c1e3fb2d9b9be32d18af1ea04b745d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60d624da2a7399e9f18d8f407f696e039c1e3fb2d9b9be32d18af1ea04b745d", kill_on_drop: false }`
[INFO] [stdout] f60d624da2a7399e9f18d8f407f696e039c1e3fb2d9b9be32d18af1ea04b745d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 606bc13aa711669af052cd9ca883ecd26b3498c99ee81ce0a72262032706e30d
[INFO] running `Command { std: "docker" "start" "-a" "606bc13aa711669af052cd9ca883ecd26b3498c99ee81ce0a72262032706e30d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling once_cell v1.21.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling memoffset v0.9.1
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking log v0.4.26
[INFO] [stderr]     Checking time-core v0.1.4
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.97
[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling pyo3-build-config v0.24.0
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking time v0.3.40
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking smallvec v1.14.0
[INFO] [stderr]    Compiling owo-colors v4.2.0
[INFO] [stderr]     Checking chrono v0.4.40
[INFO] [stderr]     Checking crossbeam-channel v0.5.14
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling pyo3-ffi v0.24.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.24.0
[INFO] [stderr]    Compiling pyo3 v0.24.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling tracing-attributes v0.1.28
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling pyo3-macros v0.24.0
[INFO] [stderr]     Checking tracing-serde v0.2.0
[INFO] [stderr]     Checking erased-serde v0.3.31
[INFO] [stderr]     Checking tracing-subscriber v0.3.19
[INFO] [stderr]     Checking dynfmt v0.1.5
[INFO] [stderr]     Checking tracing-appender v0.2.3
[INFO] [stderr]     Checking rusty-logging v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<LoggingConfig, Infallible>
[INFO] [stdout]    --> src/logger.rs:173:30
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn json_default() -> Self {
[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<LoggingConfig, Infallible>
[INFO] [stdout]    --> src/logger.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn default() -> Self {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-logging` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<LoggingConfig, Infallible>
[INFO] [stdout]    --> src/logger.rs:173:30
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn json_default() -> Self {
[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<LoggingConfig, Infallible>
[INFO] [stdout]    --> src/logger.rs:179:25
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub fn default() -> Self {
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rusty-logging` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "606bc13aa711669af052cd9ca883ecd26b3498c99ee81ce0a72262032706e30d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "606bc13aa711669af052cd9ca883ecd26b3498c99ee81ce0a72262032706e30d", kill_on_drop: false }`
[INFO] [stdout] 606bc13aa711669af052cd9ca883ecd26b3498c99ee81ce0a72262032706e30d