[INFO] fetching crate piccolo 0.3.3...
[INFO] testing piccolo-0.3.3 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate piccolo 0.3.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate piccolo 0.3.3
[INFO] finished tweaking crates.io crate piccolo 0.3.3
[INFO] tweaked toml for crates.io crate piccolo 0.3.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate piccolo 0.3.3 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate piccolo 0.3.3 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" "+beta-2026-04-21" "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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96c815c7a0ee9d148b56bb7f7f5bbe6277d35d1a910829e7405c02eb0933892f
[INFO] running `Command { std: "docker" "start" "-a" "96c815c7a0ee9d148b56bb7f7f5bbe6277d35d1a910829e7405c02eb0933892f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96c815c7a0ee9d148b56bb7f7f5bbe6277d35d1a910829e7405c02eb0933892f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96c815c7a0ee9d148b56bb7f7f5bbe6277d35d1a910829e7405c02eb0933892f", kill_on_drop: false }`
[INFO] [stdout] 96c815c7a0ee9d148b56bb7f7f5bbe6277d35d1a910829e7405c02eb0933892f
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7384c38127ef648c1c8a6924c95bf0c2bd0e493c1632881f84ecb82e83655651
[INFO] running `Command { std: "docker" "start" "-a" "7384c38127ef648c1c8a6924c95bf0c2bd0e493c1632881f84ecb82e83655651", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.85
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling zerocopy v0.7.34
[INFO] [stderr]    Compiling once_cell v1.19.0
[INFO] [stderr]    Compiling allocator-api2 v0.2.18
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]    Compiling sptr v0.3.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling gc-arena-derive v0.5.3
[INFO] [stderr]    Compiling gc-arena v0.5.3
[INFO] [stderr]    Compiling piccolo v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/conversion.rs:221:28
[INFO] [stdout]     |
[INFO] [stdout] 221 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/stack.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         &mut self,
[INFO] [stdout]    |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 79 |         range: R,
[INFO] [stdout] 80 |     ) -> vec::Drain<Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     ) -> vec::Drain<'_, Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> src/string.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stdout]    |                                                                 ^^---^^^^^^^
[INFO] [stdout]    |                                                                   |
[INFO] [stdout]    |                                                                   this raw pointer has type `*const [u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[u8]`
[INFO] [stdout]   --> src/string.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stdout]    |                                                                 ^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stdout]    = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((&(*ptr)).len());
[INFO] [stdout]    |                                                                 ++      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/thread/thread.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 209 |     ) -> Result<RefMut<ThreadState<'gc>>, BadThreadMode> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 209 |     ) -> Result<RefMut<'_, ThreadState<'gc>>, BadThreadMode> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.16s
[INFO] running `Command { std: "docker" "inspect" "7384c38127ef648c1c8a6924c95bf0c2bd0e493c1632881f84ecb82e83655651", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7384c38127ef648c1c8a6924c95bf0c2bd0e493c1632881f84ecb82e83655651", kill_on_drop: false }`
[INFO] [stdout] 7384c38127ef648c1c8a6924c95bf0c2bd0e493c1632881f84ecb82e83655651
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7861589e6c979457fec7bf8e39c6cd5b94cce6487668ff53e61bc2148808186e
[INFO] running `Command { std: "docker" "start" "-a" "7861589e6c979457fec7bf8e39c6cd5b94cce6487668ff53e61bc2148808186e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling bitflags v2.5.0
[INFO] [stderr]    Compiling linux-raw-sys v0.4.14
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling anstyle-parse v0.2.4
[INFO] [stderr]    Compiling colorchoice v1.0.1
[INFO] [stderr]    Compiling anstyle v1.0.7
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.0
[INFO] [stderr]    Compiling anstyle-query v1.1.0
[INFO] [stderr]    Compiling clap_lex v0.7.1
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling log v0.4.21
[INFO] [stderr]    Compiling home v0.5.9
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling nix v0.28.0
[INFO] [stderr]    Compiling unicode-width v0.1.13
[INFO] [stderr]    Compiling anstream v0.6.14
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling clap_builder v4.5.7
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling gc-arena v0.5.3
[INFO] [stderr]    Compiling fd-lock v4.0.2
[INFO] [stderr]    Compiling piccolo v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling clap v4.5.7
[INFO] [stderr]    Compiling rustyline v14.0.0
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/conversion.rs:221:28
[INFO] [stdout]     |
[INFO] [stdout] 221 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/stack.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         &mut self,
[INFO] [stdout]    |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 79 |         range: R,
[INFO] [stdout] 80 |     ) -> vec::Drain<Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     ) -> vec::Drain<'_, Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> src/string.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stdout]    |                                                                 ^^---^^^^^^^
[INFO] [stdout]    |                                                                   |
[INFO] [stdout]    |                                                                   this raw pointer has type `*const [u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[u8]`
[INFO] [stdout]   --> src/string.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stdout]    |                                                                 ^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stdout]    = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((&(*ptr)).len());
[INFO] [stdout]    |                                                                 ++      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/thread/thread.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 209 |     ) -> Result<RefMut<ThreadState<'gc>>, BadThreadMode> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 209 |     ) -> Result<RefMut<'_, ThreadState<'gc>>, BadThreadMode> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/conversion.rs:221:28
[INFO] [stdout]     |
[INFO] [stdout] 221 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 240 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8);
[INFO] [stdout]     | ---------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this function depends on never type fallback being `()`
[INFO] [stdout]    --> examples/interpreter.rs:89:1
[INFO] [stdout]     |
[INFO] [stdout]  89 | fn main() -> Result<(), Box<dyn StdError>> {
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: specify the types explicitly
[INFO] [stdout] note: in edition 2024, the requirement `!: FromValue<'_>` will fail
[INFO] [stdout]    --> examples/interpreter.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     lua.execute(&executor)?;
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stdout]     = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] help: use `()` annotations to avoid fallback changes
[INFO] [stdout]     |
[INFO] [stdout] 117 |     lua.execute::<()>(&executor)?;
[INFO] [stdout]     |                ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/stack.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |         &mut self,
[INFO] [stdout]    |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stdout] 79 |         range: R,
[INFO] [stdout] 80 |     ) -> vec::Drain<Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 80 |     ) -> vec::Drain<'_, Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stdout]   --> src/string.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stdout]    |                                                                 ^^---^^^^^^^
[INFO] [stdout]    |                                                                   |
[INFO] [stdout]    |                                                                   this raw pointer has type `*const [u8]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stdout] note: autoref is being applied to this expression, resulting in: `&[u8]`
[INFO] [stdout]   --> src/string.rs:55:65
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stdout]    |                                                                 ^^^^^^
[INFO] [stdout] note: method calls to `len` require a reference
[INFO] [stdout]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stdout]    = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stdout] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stdout]    |
[INFO] [stdout] 55 |                         self.metrics.mark_external_deallocation((&(*ptr)).len());
[INFO] [stdout]    |                                                                 ++      +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/thread/thread.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         &self,
[INFO] [stdout]     |         ^^^^^ the lifetime is elided here
[INFO] [stdout] ...
[INFO] [stdout] 209 |     ) -> Result<RefMut<ThreadState<'gc>>, BadThreadMode> {
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 209 |     ) -> Result<RefMut<'_, ThreadState<'gc>>, BadThreadMode> {
[INFO] [stdout]     |                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 12.65s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: piccolo v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "7861589e6c979457fec7bf8e39c6cd5b94cce6487668ff53e61bc2148808186e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7861589e6c979457fec7bf8e39c6cd5b94cce6487668ff53e61bc2148808186e", kill_on_drop: false }`
[INFO] [stdout] 7861589e6c979457fec7bf8e39c6cd5b94cce6487668ff53e61bc2148808186e
[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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7c10263782b5ed2df86c7849908d35cd0282d52ce95ecab27a5fa0c40f586f4a
[INFO] running `Command { std: "docker" "start" "-a" "7c10263782b5ed2df86c7849908d35cd0282d52ce95ecab27a5fa0c40f586f4a", kill_on_drop: false }`
[INFO] [stderr] warning: irrefutable `if let` pattern
[INFO] [stderr]    --> src/conversion.rs:221:28
[INFO] [stderr]     |
[INFO] [stderr] 221 |                         if let Ok(i) = <$i>::try_from(i) {
[INFO] [stderr]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 240 | impl_int_from!(i64, u64, i32, u32, i16, u16, i8, u8);
[INFO] [stderr]     | ---------------------------------------------------- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stderr]     = help: consider replacing the `if let` with a `let`
[INFO] [stderr]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stderr]     = note: this warning originates in the macro `impl_int_from` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/stack.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |         &mut self,
[INFO] [stderr]    |         ^^^^^^^^^ the lifetime is elided here
[INFO] [stderr] 79 |         range: R,
[INFO] [stderr] 80 |     ) -> vec::Drain<Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stderr]    |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 80 |     ) -> vec::Drain<'_, Value<'gc>, MetricsAlloc<'gc>> {
[INFO] [stderr]    |                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: implicit autoref creates a reference to the dereference of a raw pointer
[INFO] [stderr]   --> src/string.rs:55:65
[INFO] [stderr]    |
[INFO] [stderr] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stderr]    |                                                                 ^^---^^^^^^^
[INFO] [stderr]    |                                                                   |
[INFO] [stderr]    |                                                                   this raw pointer has type `*const [u8]`
[INFO] [stderr]    |
[INFO] [stderr]    = note: creating a reference requires the pointer target to be valid and imposes aliasing requirements
[INFO] [stderr] note: autoref is being applied to this expression, resulting in: `&[u8]`
[INFO] [stderr]   --> src/string.rs:55:65
[INFO] [stderr]    |
[INFO] [stderr] 55 |                         self.metrics.mark_external_deallocation((*ptr).len());
[INFO] [stderr]    |                                                                 ^^^^^^
[INFO] [stderr] note: method calls to `len` require a reference
[INFO] [stderr]   --> /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/slice/mod.rs:116:4
[INFO] [stderr]    = note: `#[warn(dangerous_implicit_autorefs)]` on by default
[INFO] [stderr] help: try using a raw pointer method instead; or if this reference is intentional, make it explicit
[INFO] [stderr]    |
[INFO] [stderr] 55 |                         self.metrics.mark_external_deallocation((&(*ptr)).len());
[INFO] [stderr]    |                                                                 ++      +
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/thread/thread.rs:206:9
[INFO] [stderr]     |
[INFO] [stderr] 206 |         &self,
[INFO] [stderr]     |         ^^^^^ the lifetime is elided here
[INFO] [stderr] ...
[INFO] [stderr] 209 |     ) -> Result<RefMut<ThreadState<'gc>>, BadThreadMode> {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 209 |     ) -> Result<RefMut<'_, ThreadState<'gc>>, BadThreadMode> {
[INFO] [stderr]     |                        +++
[INFO] [stderr] 
[INFO] [stderr] warning: `piccolo` (lib) generated 4 warnings (run `cargo fix --lib -p piccolo` to apply 2 suggestions)
[INFO] [stderr] warning: `piccolo` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr] warning: this function depends on never type fallback being `()`
[INFO] [stderr]    --> examples/interpreter.rs:89:1
[INFO] [stderr]     |
[INFO] [stderr]  89 | fn main() -> Result<(), Box<dyn StdError>> {
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: specify the types explicitly
[INFO] [stderr] note: in edition 2024, the requirement `!: FromValue<'_>` will fail
[INFO] [stderr]    --> examples/interpreter.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     lua.execute(&executor)?;
[INFO] [stderr]     |         ^^^^^^^
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in Rust 2024 and in a future release in all editions!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/never-type-fallback.html>
[INFO] [stderr]     = note: `#[warn(dependency_on_unit_never_type_fallback)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] help: use `()` annotations to avoid fallback changes
[INFO] [stderr]     |
[INFO] [stderr] 117 |     lua.execute::<()>(&executor)?;
[INFO] [stderr]     |                ++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `piccolo` (example "interpreter") generated 1 warning (run `cargo fix --example "interpreter" -p piccolo` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: piccolo v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/piccolo-0ae604fd94c0f00b)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test compiler::lexer::tests::long_string ... ok
[INFO] [stdout] test compiler::lexer::tests::ops ... ok
[INFO] [stdout] test compiler::lexer::tests::words ... ok
[INFO] [stdout] test compiler::lexer::tests::short_string ... ok
[INFO] [stdout] test io::tests::test_skip_prefix ... ok
[INFO] [stdout] test string::tests::test_string_header ... ok
[INFO] [stdout] test compiler::lexer::tests::comments ... ok
[INFO] [stdout] test any::tests::test_any_value ... ok
[INFO] [stdout] test compiler::lexer::tests::numerals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/callback.rs (/opt/rustwide/target/debug/deps/callback-52d79c756a3c4898)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tail_call_trivial_callback ... ok
[INFO] [stdout] test yield_sequence ... ok
[INFO] [stdout] test resume_with_err ... ok
[INFO] [stdout] test callback ... ok
[INFO] [stdout] test loopy_callback ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/conversion.rs (/opt/rustwide/target/debug/deps/conversion-c6c7f01b015b0ce2)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]      Running tests/error.rs (/opt/rustwide/target/debug/deps/error-90d55ac00be167d2)
[INFO] [stdout] test test_conversions ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test sizes::test_sizes ... ok
[INFO] [stdout] test error_tostring ... ok
[INFO] [stdout] test error_unwind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/fuel.rs (/opt/rustwide/target/debug/deps/fuel-6b21e1782b8d7edc)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_interrupt ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/function.rs (/opt/rustwide/target/debug/deps/function-5ed73ef608994795)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test function_compose_bind ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/scripts.rs (/opt/rustwide/target/debug/deps/scripts-9744b3940fcd1c6f)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] running all test scripts in "./tests/scripts"
[INFO] [stdout] running "./tests/scripts/tailcall.lua"
[INFO] [stdout] test table::test_table_iter ... ok
[INFO] [stdout] running "./tests/scripts/while.lua"
[INFO] [stdout] running "./tests/scripts/pcall.lua"
[INFO] [stdout] running "./tests/scripts/upvalues.lua"
[INFO] [stdout] running "./tests/scripts/coroutine.lua"
[INFO] [stdout] running "./tests/scripts/string.lua"
[INFO] [stdout] running "./tests/scripts/varargs.lua"
[INFO] [stdout] running "./tests/scripts/repeat.lua"
[INFO] [stdout] running "./tests/scripts/jumps_close_upvalues.lua"
[INFO] [stdout] running "./tests/scripts/table.lua"
[INFO] [stdout] running "./tests/scripts/if.lua"
[INFO] [stdout] running "./tests/scripts/goto.lua"
[INFO] [stdout] running "./tests/scripts/next.lua"
[INFO] [stdout] running "./tests/scripts/basic.lua"
[INFO] [stdout] running "./tests/scripts/metacall.lua"
[INFO] [stdout] running "./tests/scripts/multi.lua"
[INFO] [stdout] running "./tests/scripts/math.lua"
[INFO] [stdout] running "./tests/scripts/methods.lua"
[INFO] [stdout] running "./tests/scripts/scope.lua"
[INFO] [stdout] running "./tests/scripts/recursion.lua"
[INFO] [stdout] running "./tests/scripts/function_assign.lua"
[INFO] [stdout] running "./tests/scripts/for.lua"
[INFO] [stdout] running "./tests/scripts/metaindex.lua"
[INFO] [stdout] running "./tests/scripts/pairs.lua"
[INFO] [stdout] running "./tests/scripts/expression_order.lua"
[INFO] [stdout] running "./tests/scripts/metaeq.lua"
[INFO] [stdout] running "./tests/scripts/select.lua"
[INFO] [stdout] running "./tests/scripts/bit.lua"
[INFO] [stdout] running "./tests/scripts/operators.lua"
[INFO] [stdout] running "./tests/scripts/function.lua"
[INFO] [stdout] running "./tests/scripts/type.lua"
[INFO] [stdout] running "./tests/scripts/environment.lua"
[INFO] [stdout] test test_scripts ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.52s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/sizes.rs (/opt/rustwide/target/debug/deps/sizes-b7850907c30bfeb3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_sizes ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/table.rs (/opt/rustwide/target/debug/deps/table-bacf02b69a132b74)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_table_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tail_call_stack_panic.rs (/opt/rustwide/target/debug/deps/tail_call_stack_panic-731fd458e1e3860b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tail_call_stack_panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running tests/userdata.rs (/opt/rustwide/target/debug/deps/userdata-52f79c5f50138705)
[INFO] [stdout] running 1 test
[INFO] [stdout] test userdata ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/weak_threads.rs (/opt/rustwide/target/debug/deps/weak_threads-b9ba0909a728cb64)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test live_upvalues_not_dead ... ok
[INFO] [stdout] test weak_threads_close ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests piccolo
[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" "7c10263782b5ed2df86c7849908d35cd0282d52ce95ecab27a5fa0c40f586f4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c10263782b5ed2df86c7849908d35cd0282d52ce95ecab27a5fa0c40f586f4a", kill_on_drop: false }`
[INFO] [stdout] 7c10263782b5ed2df86c7849908d35cd0282d52ce95ecab27a5fa0c40f586f4a
