[INFO] fetching crate gobuild 0.1.0-alpha.2...
[INFO] testing gobuild-0.1.0-alpha.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate gobuild 0.1.0-alpha.2 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate gobuild 0.1.0-alpha.2
[INFO] finished tweaking crates.io crate gobuild 0.1.0-alpha.2
[INFO] tweaked toml for crates.io crate gobuild 0.1.0-alpha.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate gobuild 0.1.0-alpha.2 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c45a62e98e5b273a1fb4d52217b9f24d270547076179b365cfdf4f379b1194d5
[INFO] running `Command { std: "docker" "start" "-a" "c45a62e98e5b273a1fb4d52217b9f24d270547076179b365cfdf4f379b1194d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c45a62e98e5b273a1fb4d52217b9f24d270547076179b365cfdf4f379b1194d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c45a62e98e5b273a1fb4d52217b9f24d270547076179b365cfdf4f379b1194d5", kill_on_drop: false }`
[INFO] [stdout] c45a62e98e5b273a1fb4d52217b9f24d270547076179b365cfdf4f379b1194d5
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bbca97ed87da2214426e81fd476c5cfcc3fad3d2a648f635763482f39bfba6ba
[INFO] running `Command { std: "docker" "start" "-a" "bbca97ed87da2214426e81fd476c5cfcc3fad3d2a648f635763482f39bfba6ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling shlex v1.3.0
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling gobuild v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]    --> src/lib.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub struct Error {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 132 |     /// Describes the kind of error that occurred.
[INFO] [stdout] 133 |     kind: ErrorKind,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[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 2.16s
[INFO] running `Command { std: "docker" "inspect" "bbca97ed87da2214426e81fd476c5cfcc3fad3d2a648f635763482f39bfba6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbca97ed87da2214426e81fd476c5cfcc3fad3d2a648f635763482f39bfba6ba", kill_on_drop: false }`
[INFO] [stdout] bbca97ed87da2214426e81fd476c5cfcc3fad3d2a648f635763482f39bfba6ba
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d8510644713f50efd17cc9f812695bc8b01cbf0119df4ce17ef06beb9a51e52
[INFO] running `Command { std: "docker" "start" "-a" "0d8510644713f50efd17cc9f812695bc8b01cbf0119df4ce17ef06beb9a51e52", kill_on_drop: false }`
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]    --> src/lib.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub struct Error {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 132 |     /// Describes the kind of error that occurred.
[INFO] [stdout] 133 |     kind: ErrorKind,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling gobuild v0.1.0-alpha.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `kind` is never read
[INFO] [stdout]    --> src/lib.rs:133:5
[INFO] [stdout]     |
[INFO] [stdout] 131 | pub struct Error {
[INFO] [stdout]     |            ----- field in this struct
[INFO] [stdout] 132 |     /// Describes the kind of error that occurred.
[INFO] [stdout] 133 |     kind: ErrorKind,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "0d8510644713f50efd17cc9f812695bc8b01cbf0119df4ce17ef06beb9a51e52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d8510644713f50efd17cc9f812695bc8b01cbf0119df4ce17ef06beb9a51e52", kill_on_drop: false }`
[INFO] [stdout] 0d8510644713f50efd17cc9f812695bc8b01cbf0119df4ce17ef06beb9a51e52
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 982ca13f008fffdd812ff69f7f439ca3fdb9095ade09f31a7484d7dc46a37c1d
[INFO] running `Command { std: "docker" "start" "-a" "982ca13f008fffdd812ff69f7f439ca3fdb9095ade09f31a7484d7dc46a37c1d", kill_on_drop: false }`
[INFO] [stderr] warning: field `kind` is never read
[INFO] [stderr]    --> src/lib.rs:133:5
[INFO] [stderr]     |
[INFO] [stderr] 131 | pub struct Error {
[INFO] [stderr]     |            ----- field in this struct
[INFO] [stderr] 132 |     /// Describes the kind of error that occurred.
[INFO] [stderr] 133 |     kind: ErrorKind,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Error` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `gobuild` (lib) generated 1 warning
[INFO] [stderr] warning: `gobuild` (lib test) generated 1 warning (1 duplicate)
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/gobuild-8577d201cf140eab)
[INFO] [stderr]    Doc-tests gobuild
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "982ca13f008fffdd812ff69f7f439ca3fdb9095ade09f31a7484d7dc46a37c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "982ca13f008fffdd812ff69f7f439ca3fdb9095ade09f31a7484d7dc46a37c1d", kill_on_drop: false }`
[INFO] [stdout] 982ca13f008fffdd812ff69f7f439ca3fdb9095ade09f31a7484d7dc46a37c1d