[INFO] fetching crate viewit 0.1.5... [INFO] testing viewit-0.1.5 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate viewit 0.1.5 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate viewit 0.1.5 [INFO] finished tweaking crates.io crate viewit 0.1.5 [INFO] tweaked toml for crates.io crate viewit 0.1.5 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate viewit 0.1.5 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] crate crates.io crate viewit 0.1.5 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" "+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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a343717076a79b7509e554537652ba2f55906a58da2fc105c552a1e564c5c547 [INFO] running `Command { std: "docker" "start" "-a" "a343717076a79b7509e554537652ba2f55906a58da2fc105c552a1e564c5c547", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a343717076a79b7509e554537652ba2f55906a58da2fc105c552a1e564c5c547", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a343717076a79b7509e554537652ba2f55906a58da2fc105c552a1e564c5c547", kill_on_drop: false }` [INFO] [stdout] a343717076a79b7509e554537652ba2f55906a58da2fc105c552a1e564c5c547 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 80c7c03bd9e366c1da89a0703d78686fb61d6f9a72f6293760b28990d0c80253 [INFO] running `Command { std: "docker" "start" "-a" "80c7c03bd9e366c1da89a0703d78686fb61d6f9a72f6293760b28990d0c80253", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.51 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling fnv v1.0.7 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling prettyplease v0.1.24 [INFO] [stderr] Compiling darling_core v0.14.3 [INFO] [stderr] Compiling darling_macro v0.14.3 [INFO] [stderr] Compiling darling v0.14.3 [INFO] [stderr] Compiling derivit-core v0.1.5 [INFO] [stderr] Compiling viewit v0.1.5 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.97s [INFO] running `Command { std: "docker" "inspect" "80c7c03bd9e366c1da89a0703d78686fb61d6f9a72f6293760b28990d0c80253", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80c7c03bd9e366c1da89a0703d78686fb61d6f9a72f6293760b28990d0c80253", kill_on_drop: false }` [INFO] [stdout] 80c7c03bd9e366c1da89a0703d78686fb61d6f9a72f6293760b28990d0c80253 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c1f49da0b76fef8f33816c08862401358dbfd2333f994766ec22a8c8bd1affa1 [INFO] running `Command { std: "docker" "start" "-a" "c1f49da0b76fef8f33816c08862401358dbfd2333f994766ec22a8c8bd1affa1", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.51 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling ident_case v1.0.1 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling quote v1.0.23 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling prettyplease v0.1.24 [INFO] [stderr] Compiling darling_core v0.14.3 [INFO] [stderr] Compiling darling_macro v0.14.3 [INFO] [stderr] Compiling darling v0.14.3 [INFO] [stderr] Compiling derivit-core v0.1.5 [INFO] [stderr] Compiling viewit v0.1.5 (/opt/rustwide/workdir) [INFO] [stdout] pub struct Foo { [INFO] [stdout] pub(crate) f1: u8, [INFO] [stdout] pub(crate) f2: u16, [INFO] [stdout] pub(crate) f3: String, [INFO] [stdout] pub(crate) f4: Vec, [INFO] [stdout] } [INFO] [stdout] impl Foo { [INFO] [stdout] ///asdasd [INFO] [stdout] #[inline] [INFO] [stdout] pub const fn get_first_field(&self) -> u8 { [INFO] [stdout] self.f1 [INFO] [stdout] } [INFO] [stdout] #[doc(hidden)] [INFO] [stdout] #[inline] [INFO] [stdout] pub(crate) fn get_f3 From<&'a String>>(&self) -> T { [INFO] [stdout] T::from(&self.f3) [INFO] [stdout] } [INFO] [stdout] #[inline] [INFO] [stdout] pub(crate) fn get_f4(&self) -> String { [INFO] [stdout] vec_to_string(&self.f4) [INFO] [stdout] } [INFO] [stdout] #[inline] [INFO] [stdout] pub(crate) fn with_f2(&mut self, val: u16) { [INFO] [stdout] self.f2 = val; [INFO] [stdout] } [INFO] [stdout] #[inline] [INFO] [stdout] pub(crate) fn with_f3(&mut self, val: String) { [INFO] [stdout] self.f3 = val; [INFO] [stdout] } [INFO] [stdout] #[inline] [INFO] [stdout] pub(crate) fn with_f4(&mut self, val: Vec) { [INFO] [stdout] self.f4 = val; [INFO] [stdout] } [INFO] [stdout] } [INFO] [stdout] [INFO] [stdout] warning: struct `FromString` is never constructed [INFO] [stdout] --> examples/foo.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct FromString { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `vec_to_string` is never used [INFO] [stdout] --> examples/foo.rs:13:4 [INFO] [stdout] | [INFO] [stdout] 13 | fn vec_to_string(src: &[u8]) -> String { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `f2`, `f3`, and `f4` are never read [INFO] [stdout] --> examples/foo.rs:59:3 [INFO] [stdout] | [INFO] [stdout] 40 | pub struct Foo { [INFO] [stdout] | --- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 59 | f2: u16, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 76 | f3: String, [INFO] [stdout] | ^^ [INFO] [stdout] ... [INFO] [stdout] 90 | f4: Vec, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 9.19s [INFO] running `Command { std: "docker" "inspect" "c1f49da0b76fef8f33816c08862401358dbfd2333f994766ec22a8c8bd1affa1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1f49da0b76fef8f33816c08862401358dbfd2333f994766ec22a8c8bd1affa1", kill_on_drop: false }` [INFO] [stdout] c1f49da0b76fef8f33816c08862401358dbfd2333f994766ec22a8c8bd1affa1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 44544143c714cca01afef805ee075149eff926f0d32de463a6b06b21f51358e0 [INFO] running `Command { std: "docker" "start" "-a" "44544143c714cca01afef805ee075149eff926f0d32de463a6b06b21f51358e0", kill_on_drop: false }` [INFO] [stderr] warning: struct `FromString` is never constructed [INFO] [stderr] --> examples/foo.rs:3:8 [INFO] [stderr] | [INFO] [stderr] 3 | struct FromString { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: function `vec_to_string` is never used [INFO] [stderr] --> examples/foo.rs:13:4 [INFO] [stderr] | [INFO] [stderr] 13 | fn vec_to_string(src: &[u8]) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: fields `f2`, `f3`, and `f4` are never read [INFO] [stderr] --> examples/foo.rs:59:3 [INFO] [stderr] | [INFO] [stderr] 40 | pub struct Foo { [INFO] [stderr] | --- fields in this struct [INFO] [stderr] ... [INFO] [stderr] 59 | f2: u16, [INFO] [stderr] | ^^ [INFO] [stderr] ... [INFO] [stderr] 76 | f3: String, [INFO] [stderr] | ^^ [INFO] [stderr] ... [INFO] [stderr] 90 | f4: Vec, [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: `viewit` (example "foo") generated 3 warnings [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/viewit-59a4d22b4d71d11a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Doc-tests viewit [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "44544143c714cca01afef805ee075149eff926f0d32de463a6b06b21f51358e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "44544143c714cca01afef805ee075149eff926f0d32de463a6b06b21f51358e0", kill_on_drop: false }` [INFO] [stdout] 44544143c714cca01afef805ee075149eff926f0d32de463a6b06b21f51358e0