[INFO] fetching crate sp-variant 3.5.3...
[INFO] building sp-variant-3.5.3 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate sp-variant 3.5.3 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate sp-variant 3.5.3
[INFO] finished tweaking crates.io crate sp-variant 3.5.3
[INFO] tweaked toml for crates.io crate sp-variant 3.5.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sp-variant 3.5.3 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sp-variant 3.5.3 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 645ef5b5db3522f982adc44b4b4079ba9e2841dac991776bcc4a4aed73a3eb26
[INFO] running `Command { std: "docker" "start" "-a" "645ef5b5db3522f982adc44b4b4079ba9e2841dac991776bcc4a4aed73a3eb26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "645ef5b5db3522f982adc44b4b4079ba9e2841dac991776bcc4a4aed73a3eb26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "645ef5b5db3522f982adc44b4b4079ba9e2841dac991776bcc4a4aed73a3eb26", kill_on_drop: false }`
[INFO] [stdout] 645ef5b5db3522f982adc44b4b4079ba9e2841dac991776bcc4a4aed73a3eb26
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8549432fba9766929a97af7e77c3cda36ae6548bc47b7719f1b6e4f6e47fe03
[INFO] running `Command { std: "docker" "start" "-a" "f8549432fba9766929a97af7e77c3cda36ae6548bc47b7719f1b6e4f6e47fe03", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling rustix v0.38.2
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling bitflags v2.3.3
[INFO] [stderr]    Compiling linux-raw-sys v0.4.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling anstyle v1.0.1
[INFO] [stderr]    Compiling serde v1.0.166
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling rustix v0.37.22
[INFO] [stderr]    Compiling tempfile v3.6.0
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling anstyle-parse v0.2.1
[INFO] [stderr]    Compiling linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling serde_json v1.0.99
[INFO] [stderr]    Compiling clap_lex v0.5.0
[INFO] [stderr]    Compiling fastrand v1.9.0
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling itoa v1.0.8
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling is-terminal v0.4.8
[INFO] [stderr]    Compiling anstream v0.3.2
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling clap_builder v4.3.10
[INFO] [stderr]    Compiling regex v1.8.4
[INFO] [stderr]    Compiling clap v4.3.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]    Compiling enum-iterator-derive v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.166
[INFO] [stderr]    Compiling clap_derive v4.3.2
[INFO] [stderr]    Compiling enum-iterator v1.4.1
[INFO] [stderr]    Compiling sp-variant v3.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `VariantFormatTop` is never constructed
[INFO] [stdout]   --> rust/lib.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct VariantFormatTop {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.81s
[INFO] running `Command { std: "docker" "inspect" "f8549432fba9766929a97af7e77c3cda36ae6548bc47b7719f1b6e4f6e47fe03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8549432fba9766929a97af7e77c3cda36ae6548bc47b7719f1b6e4f6e47fe03", kill_on_drop: false }`
[INFO] [stdout] f8549432fba9766929a97af7e77c3cda36ae6548bc47b7719f1b6e4f6e47fe03
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c14ab202f604170a05ea364d5fdc7e627b95bd761bf7c661e2b3f98a609a7d6
[INFO] running `Command { std: "docker" "start" "-a" "8c14ab202f604170a05ea364d5fdc7e627b95bd761bf7c661e2b3f98a609a7d6", kill_on_drop: false }`
[INFO] [stdout] warning: struct `VariantFormatTop` is never constructed
[INFO] [stdout]   --> rust/lib.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct VariantFormatTop {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sp-variant v3.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `VariantFormatTop` is never constructed
[INFO] [stdout]   --> rust/lib.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct VariantFormatTop {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> rust/lib.rs:27:1
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub mod tests;
[INFO] [stdout]    | ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> rust/lib.rs:7:9
[INFO] [stdout]    |
[INFO] [stdout]  7 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "8c14ab202f604170a05ea364d5fdc7e627b95bd761bf7c661e2b3f98a609a7d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c14ab202f604170a05ea364d5fdc7e627b95bd761bf7c661e2b3f98a609a7d6", kill_on_drop: false }`
[INFO] [stdout] 8c14ab202f604170a05ea364d5fdc7e627b95bd761bf7c661e2b3f98a609a7d6