[INFO] cloning repository https://github.com/glottologist/towl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/glottologist/towl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglottologist%2Ftowl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglottologist%2Ftowl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 29d8458c242b539117611503810b0b114e0dba0d
[INFO] checking glottologist/towl against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglottologist%2Ftowl" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/glottologist/towl
[INFO] finished tweaking git repo https://github.com/glottologist/towl
[INFO] tweaked toml for git repo https://github.com/glottologist/towl written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/glottologist/towl 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 git repo https://github.com/glottologist/towl 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] d1227850938dd5d72a8eb2e707395a77aeb73e7a359f9e725371b1a612715bf1
[INFO] running `Command { std: "docker" "start" "-a" "d1227850938dd5d72a8eb2e707395a77aeb73e7a359f9e725371b1a612715bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1227850938dd5d72a8eb2e707395a77aeb73e7a359f9e725371b1a612715bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1227850938dd5d72a8eb2e707395a77aeb73e7a359f9e725371b1a612715bf1", kill_on_drop: false }`
[INFO] [stdout] d1227850938dd5d72a8eb2e707395a77aeb73e7a359f9e725371b1a612715bf1
[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] d4ad9fd6c74935ca3984f8fae8a2809f39d7cbf2618cf46c506be2ca1a982e86
[INFO] running `Command { std: "docker" "start" "-a" "d4ad9fd6c74935ca3984f8fae8a2809f39d7cbf2618cf46c506be2ca1a982e86", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling find-msvc-tools v0.1.1
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling thiserror v2.0.16
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]    Compiling getrandom v0.3.3
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling ucd-trie v0.1.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling once_cell v1.21.3
[INFO] [stderr]     Checking allocator-api2 v0.2.21
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]    Compiling portable-atomic v1.11.1
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking anstream v0.6.20
[INFO] [stderr]     Checking bstr v1.12.0
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking indexmap v2.11.1
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling jobserver v0.1.34
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking slab v0.4.11
[INFO] [stderr]    Compiling cc v1.2.37
[INFO] [stderr]     Checking futures-io v0.3.31
[INFO] [stderr]    Compiling anyhow v1.0.99
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking arraydeque v0.5.1
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking hashlink v0.8.4
[INFO] [stderr]     Checking unicode-width v0.2.1
[INFO] [stderr]     Checking clap_builder v4.5.47
[INFO] [stderr]     Checking convert_case v0.6.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking thread_local v1.1.9
[INFO] [stderr]     Checking pathdiff v0.2.3
[INFO] [stderr]    Compiling towl v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking console v0.15.11
[INFO] [stderr]     Checking nu-ansi-term v0.50.1
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]     Checking number_prefix v0.4.0
[INFO] [stderr]     Checking dlv-list v0.5.2
[INFO] [stderr]     Checking wait-timeout v0.2.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling relative-path v1.9.3
[INFO] [stderr]    Compiling glob v0.3.3
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking ordered-multimap v0.7.3
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]     Checking yaml-rust2 v0.8.1
[INFO] [stderr]     Checking indicatif v0.17.11
[INFO] [stderr]     Checking rust-ini v0.20.0
[INFO] [stderr]    Compiling openssl-sys v0.9.109
[INFO] [stderr]    Compiling libz-sys v1.1.22
[INFO] [stderr]    Compiling libssh2-sys v0.3.1
[INFO] [stderr]    Compiling libgit2-sys v0.17.0+1.8.1
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking globset v0.4.16
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking ignore v0.4.23
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.8.0
[INFO] [stderr]    Compiling zerovec-derive v0.11.1
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling thiserror-impl v2.0.16
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling clap_derive v4.5.47
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]     Checking async-stream v0.3.6
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking zerovec v0.11.4
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]    Compiling pest v2.8.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.3
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking clap v4.5.47
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]    Compiling pest_meta v2.8.1
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]    Compiling pest_generator v2.8.1
[INFO] [stderr]    Compiling pest_derive v2.8.1
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking tokio-test v0.4.4
[INFO] [stderr]     Checking bitflags v2.9.4
[INFO] [stderr]     Checking toml_datetime v0.6.11
[INFO] [stderr]     Checking serde_spanned v0.6.9
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking ron v0.8.1
[INFO] [stderr]     Checking rustix v1.1.2
[INFO] [stderr]     Checking toml_edit v0.22.27
[INFO] [stderr]     Checking git2 v0.19.0
[INFO] [stderr]     Checking tempfile v3.22.0
[INFO] [stderr]     Checking toml v0.8.23
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking proptest v1.7.0
[INFO] [stderr]     Checking config v0.14.1
[INFO] [stdout] error: this type will no longer be must used: Result<config::config::Owner, Infallible>
[INFO] [stdout]   --> src/lib/config/config.rs:35:53
[INFO] [stdout]    |
[INFO] [stdout] 35 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 36 | |         Ok(Self::new(s))
[INFO] [stdout] 37 | |     }
[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<config::config::Owner, Infallible>
[INFO] [stdout]   --> src/lib/config/config.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         Ok(Self::new(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Repo, Infallible>
[INFO] [stdout]   --> src/lib/config/config.rs:68:53
[INFO] [stdout]    |
[INFO] [stdout] 68 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 69 | |         Ok(Self::new(s))
[INFO] [stdout] 70 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Repo, Infallible>
[INFO] [stdout]   --> src/lib/config/config.rs:69:9
[INFO] [stdout]    |
[INFO] [stdout] 69 |         Ok(Self::new(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `towl` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "d4ad9fd6c74935ca3984f8fae8a2809f39d7cbf2618cf46c506be2ca1a982e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ad9fd6c74935ca3984f8fae8a2809f39d7cbf2618cf46c506be2ca1a982e86", kill_on_drop: false }`
[INFO] [stdout] d4ad9fd6c74935ca3984f8fae8a2809f39d7cbf2618cf46c506be2ca1a982e86