[INFO] fetching crate fimg 0.4.48...
[INFO] testing fimg-0.4.48 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate fimg 0.4.48 into /workspace/builds/worker-5-tc2/source
[INFO] removed /workspace/builds/worker-5-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fimg 0.4.48
[INFO] finished tweaking crates.io crate fimg 0.4.48
[INFO] tweaked toml for crates.io crate fimg 0.4.48 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fimg 0.4.48 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate fimg 0.4.48 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e81e426e237ab35286706f164b7d4257ad0e7dabdecbc57d7076ad1d0df397a4
[INFO] running `Command { std: "docker" "start" "-a" "e81e426e237ab35286706f164b7d4257ad0e7dabdecbc57d7076ad1d0df397a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e81e426e237ab35286706f164b7d4257ad0e7dabdecbc57d7076ad1d0df397a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e81e426e237ab35286706f164b7d4257ad0e7dabdecbc57d7076ad1d0df397a4", kill_on_drop: false }`
[INFO] [stdout] e81e426e237ab35286706f164b7d4257ad0e7dabdecbc57d7076ad1d0df397a4
[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=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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0adc3615540ee5dc78e9714d025903c6829d2329ada4eca9a25dd5797a18e3aa
[INFO] running `Command { std: "docker" "start" "-a" "0adc3615540ee5dc78e9714d025903c6829d2329ada4eca9a25dd5797a18e3aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling umath v0.0.7
[INFO] [stderr]    Compiling atools v0.1.6
[INFO] [stderr]    Compiling array_chunks v1.0.0
[INFO] [stderr]    Compiling mattr v0.0.2
[INFO] [stderr]    Compiling fer v0.1.1
[INFO] [stderr]    Compiling clipline v0.1.2
[INFO] [stderr]    Compiling hinted v0.0.2
[INFO] [stderr]    Compiling miniz_oxide v0.8.3
[INFO] [stderr]    Compiling crc32fast v1.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling vecto v0.1.1
[INFO] [stderr]    Compiling qwant v1.0.1
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling flate2 v1.0.35
[INFO] [stderr]    Compiling png v0.17.16
[INFO] [stderr]    Compiling lower-macros v0.2.8
[INFO] [stderr]    Compiling lower v0.2.0
[INFO] [stderr]    Compiling fimg v0.4.48 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0658]: use of unstable library feature `iter_chain`: recently added
[INFO] [stdout]    --> src/lib.rs:699:21
[INFO] [stdout]     |
[INFO] [stdout] 699 |                     std::iter::chain(
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #125964 <https://github.com/rust-lang/rust/issues/125964> for more information
[INFO] [stdout]     = help: add `#![feature(iter_chain)]` to the crate attributes to enable
[INFO] [stdout]     = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `const_convert`
[INFO] [stdout]   --> src/lib.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 66 |     const_convert,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_from`
[INFO] [stdout]   --> src/dyn/mod.rs:23:15
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl<T> const From<Image<T, 1>> for DynImage<T> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143773 <https://github.com/rust-lang/rust/issues/143773> for more information
[INFO] [stdout]    = help: add `#![feature(const_from)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_from`
[INFO] [stdout]   --> src/dyn/mod.rs:29:15
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<T> const From<Image<T, 2>> for DynImage<T> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143773 <https://github.com/rust-lang/rust/issues/143773> for more information
[INFO] [stdout]    = help: add `#![feature(const_from)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_from`
[INFO] [stdout]   --> src/dyn/mod.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<T> const From<Image<T, 3>> for DynImage<T> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143773 <https://github.com/rust-lang/rust/issues/143773> for more information
[INFO] [stdout]    = help: add `#![feature(const_from)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_from`
[INFO] [stdout]   --> src/dyn/mod.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 | impl<T> const From<Image<T, 4>> for DynImage<T> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143773 <https://github.com/rust-lang/rust/issues/143773> for more information
[INFO] [stdout]    = help: add `#![feature(const_from)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-08-13; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0635, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fimg` (lib) due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "0adc3615540ee5dc78e9714d025903c6829d2329ada4eca9a25dd5797a18e3aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0adc3615540ee5dc78e9714d025903c6829d2329ada4eca9a25dd5797a18e3aa", kill_on_drop: false }`
[INFO] [stdout] 0adc3615540ee5dc78e9714d025903c6829d2329ada4eca9a25dd5797a18e3aa