[INFO] fetching crate rustyfast 0.7.4...
[INFO] checking rustyfast-0.7.4 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate rustyfast 0.7.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rustyfast 0.7.4
[INFO] finished tweaking crates.io crate rustyfast 0.7.4
[INFO] tweaked toml for crates.io crate rustyfast 0.7.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustyfast 0.7.4 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 rustyfast 0.7.4 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-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d5aa3067308c0f75ae12aebe85feb05e61073630e4eb8ca93466b4cd51ccce3
[INFO] running `Command { std: "docker" "start" "-a" "3d5aa3067308c0f75ae12aebe85feb05e61073630e4eb8ca93466b4cd51ccce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d5aa3067308c0f75ae12aebe85feb05e61073630e4eb8ca93466b4cd51ccce3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d5aa3067308c0f75ae12aebe85feb05e61073630e4eb8ca93466b4cd51ccce3", kill_on_drop: false }`
[INFO] [stdout] 3d5aa3067308c0f75ae12aebe85feb05e61073630e4eb8ca93466b4cd51ccce3
[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=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] b8a51456acd0d2c517b28b20b0f5096986fbea70cecf0eb4d81cfc5a7982b3ac
[INFO] running `Command { std: "docker" "start" "-a" "b8a51456acd0d2c517b28b20b0f5096986fbea70cecf0eb4d81cfc5a7982b3ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking clap_lex v0.7.5
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking anstyle v1.0.11
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.2.6
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking clap_builder v4.5.41
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]    Compiling indoc v2.0.6
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking heck v0.5.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rayon-core v1.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.5.41
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling quickcheck_derive v0.3.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling derive_arbitrary v1.4.1
[INFO] [stderr]    Compiling quickcheck_macros v1.1.0
[INFO] [stderr]    Compiling enum-as-inner v0.6.1
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]     Checking arbitrary v1.4.1
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking rustyfast v0.7.4 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Delta` is never constructed
[INFO] [stdout]   --> src/field_operators.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct Delta<T, U> {
[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: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout]  6 |     unused,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` implied by `#[deny(unused)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Copy` is never constructed
[INFO] [stdout]    --> src/field_operators.rs:102:12
[INFO] [stdout]     |
[INFO] [stdout] 102 | pub struct Copy<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] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustyfast` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b8a51456acd0d2c517b28b20b0f5096986fbea70cecf0eb4d81cfc5a7982b3ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8a51456acd0d2c517b28b20b0f5096986fbea70cecf0eb4d81cfc5a7982b3ac", kill_on_drop: false }`
[INFO] [stdout] b8a51456acd0d2c517b28b20b0f5096986fbea70cecf0eb4d81cfc5a7982b3ac
