[INFO] fetching crate rustica 0.12.0...
[INFO] checking rustica-0.12.0 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate rustica 0.12.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rustica 0.12.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustica 0.12.0
[INFO] tweaked toml for crates.io crate rustica 0.12.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustica 0.12.0 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustica 0.12.0 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0d021111a1804a30d9a028445780e2050d7d97848df06ea50467b56d2b934ae6
[INFO] running `Command { std: "docker" "start" "-a" "0d021111a1804a30d9a028445780e2050d7d97848df06ea50467b56d2b934ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0d021111a1804a30d9a028445780e2050d7d97848df06ea50467b56d2b934ae6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d021111a1804a30d9a028445780e2050d7d97848df06ea50467b56d2b934ae6", kill_on_drop: false }`
[INFO] [stdout] 0d021111a1804a30d9a028445780e2050d7d97848df06ea50467b56d2b934ae6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b727a6ad66f05afaf957f958c4478241a65542965e82108cfc2ff984b359a7d8
[INFO] running `Command { std: "docker" "start" "-a" "b727a6ad66f05afaf957f958c4478241a65542965e82108cfc2ff984b359a7d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling find-msvc-tools v0.1.9
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking itoa v1.0.18
[INFO] [stderr]     Checking log v0.4.29
[INFO] [stderr]    Compiling cc v1.2.59
[INFO] [stderr]     Checking serde_json v1.0.149
[INFO] [stderr]     Checking clap_builder v4.6.0
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking page_size v0.6.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking rand v0.10.0
[INFO] [stderr]    Compiling alloca v0.4.0
[INFO] [stderr]     Checking clap v4.6.0
[INFO] [stderr]     Checking criterion-plot v0.8.2
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling quickcheck_macros v1.2.0
[INFO] [stderr]     Checking regex v1.12.3
[INFO] [stderr]     Checking env_filter v1.0.1
[INFO] [stderr]     Checking env_logger v0.11.10
[INFO] [stderr]     Checking quickcheck v1.1.0
[INFO] [stderr]     Checking rustica v0.12.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stdout] error: struct `SemigroupExtAdapter` is never constructed
[INFO] [stdout]    --> src/traits/semigroup.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 | pub struct SemigroupExtAdapter<T>(T);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustica` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b727a6ad66f05afaf957f958c4478241a65542965e82108cfc2ff984b359a7d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b727a6ad66f05afaf957f958c4478241a65542965e82108cfc2ff984b359a7d8", kill_on_drop: false }`
[INFO] [stdout] b727a6ad66f05afaf957f958c4478241a65542965e82108cfc2ff984b359a7d8
