[INFO] cloning repository https://github.com/luksan/lox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/luksan/lox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluksan%2Flox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluksan%2Flox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 05b2508fc9f936ee93c1193942febb190ffa2f26
[INFO] testing luksan/lox against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluksan%2Flox" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/luksan/lox
[INFO] finished tweaking git repo https://github.com/luksan/lox
[INFO] tweaked toml for git repo https://github.com/luksan/lox written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/luksan/lox on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/luksan/lox 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-2026-01-20" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5fde21b6fdfd7d661a619430e8215a05ffe173223ee9abfa214215f69b6c4ab2
[INFO] running `Command { std: "docker" "start" "-a" "5fde21b6fdfd7d661a619430e8215a05ffe173223ee9abfa214215f69b6c4ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fde21b6fdfd7d661a619430e8215a05ffe173223ee9abfa214215f69b6c4ab2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fde21b6fdfd7d661a619430e8215a05ffe173223ee9abfa214215f69b6c4ab2", kill_on_drop: false }`
[INFO] [stdout] 5fde21b6fdfd7d661a619430e8215a05ffe173223ee9abfa214215f69b6c4ab2
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b4b267b685e103065715dff16ef61bb4c5b1fe03652794941a966c2125dfcc5
[INFO] running `Command { std: "docker" "start" "-a" "0b4b267b685e103065715dff16ef61bb4c5b1fe03652794941a966c2125dfcc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling hashbrown v0.15.0
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling gimli v0.31.1
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling adler2 v2.0.0
[INFO] [stderr]    Compiling rustix v0.38.37
[INFO] [stderr]    Compiling anstyle-query v1.1.1
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]    Compiling tracing-core v0.1.32
[INFO] [stderr]    Compiling anstyle-parse v0.2.5
[INFO] [stderr]    Compiling colorchoice v1.0.2
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling owo-colors v4.1.0
[INFO] [stderr]    Compiling anstyle v1.0.8
[INFO] [stderr]    Compiling rustc-demangle v0.1.24
[INFO] [stderr]    Compiling anyhow v1.0.89
[INFO] [stderr]    Compiling miniz_oxide v0.8.0
[INFO] [stderr]    Compiling clap_lex v0.7.2
[INFO] [stderr]    Compiling smawk v0.3.2
[INFO] [stderr]    Compiling supports-color v3.0.1
[INFO] [stderr]    Compiling textwrap v0.16.1
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling anstream v0.6.15
[INFO] [stderr]    Compiling thread_local v1.1.8
[INFO] [stderr]    Compiling supports-unicode v3.0.0
[INFO] [stderr]    Compiling supports-hyperlinks v3.0.0
[INFO] [stderr]    Compiling sptr v0.3.2
[INFO] [stderr]    Compiling object v0.36.5
[INFO] [stderr]    Compiling clap_builder v4.5.20
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling indexmap v2.6.0
[INFO] [stderr]    Compiling tracing-log v0.2.0
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling terminal_size v0.3.0
[INFO] [stderr]    Compiling toml_edit v0.22.22
[INFO] [stderr]    Compiling addr2line v0.24.2
[INFO] [stderr]    Compiling proc-macro-crate v3.2.0
[INFO] [stderr]    Compiling backtrace v0.3.74
[INFO] [stderr]    Compiling thiserror-impl v1.0.64
[INFO] [stderr]    Compiling miette-derive v7.2.0
[INFO] [stderr]    Compiling num_enum_derive v0.7.3
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling backtrace-ext v0.2.1
[INFO] [stderr]    Compiling phf v0.11.2
[INFO] [stderr]    Compiling num_enum v0.7.3
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling clap v4.5.20
[INFO] [stderr]    Compiling thiserror v1.0.64
[INFO] [stderr]    Compiling miette v7.2.0
[INFO] [stderr]    Compiling lox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sptr::Strict`
[INFO] [stdout]  --> src/clox/value.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use sptr::Strict;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0521]: borrowed data escapes outside of method
[INFO] [stdout]    --> src/clox/mm.rs:304:9
[INFO] [stdout]     |
[INFO] [stdout] 299 |     fn register<'root>(&self, root: *const (dyn HasRoots + 'root)) -> Option<GcToken<'_, 'root>> {
[INFO] [stdout]     |                 -----         ---- `root` is a reference that is only valid in the method body
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 lifetime `'root` defined here
[INFO] [stdout] ...
[INFO] [stdout] 304 |         self.0.set(NonNull::new(root as *mut _));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         `root` escapes the method body here
[INFO] [stdout]     |         argument requires that `'root` must outlive `'static`
[INFO] [stdout]     |
[INFO] [stdout]     = note: requirement occurs because of the type `Cell<Option<NonNull<dyn HasRoots>>>`, which makes the generic argument `Option<NonNull<dyn HasRoots>>` invariant
[INFO] [stdout]     = note: the struct `Cell<T>` is invariant over the parameter `T`
[INFO] [stdout]     = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance
[INFO] [stdout] note: raw pointer casts of trait objects cannot extend lifetimes
[INFO] [stdout]    --> src/clox/mm.rs:304:33
[INFO] [stdout]     |
[INFO] [stdout] 304 |         self.0.set(NonNull::new(root as *mut _));
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^
[INFO] [stdout]     = note: this was previously accepted by the compiler but was changed recently
[INFO] [stdout]     = help: see <https://github.com/rust-lang/rust/issues/141402> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0521`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lox` (lib) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "0b4b267b685e103065715dff16ef61bb4c5b1fe03652794941a966c2125dfcc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b4b267b685e103065715dff16ef61bb4c5b1fe03652794941a966c2125dfcc5", kill_on_drop: false }`
[INFO] [stdout] 0b4b267b685e103065715dff16ef61bb4c5b1fe03652794941a966c2125dfcc5
