[INFO] cloning repository https://github.com/tobratland/learning-to-fly [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tobratland/learning-to-fly" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobratland%2Flearning-to-fly", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobratland%2Flearning-to-fly'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5a6e6134253720ec0ce54905cf08e2ee862f4722 [INFO] checking tobratland/learning-to-fly against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftobratland%2Flearning-to-fly" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml [INFO] started tweaking git repo https://github.com/tobratland/learning-to-fly [INFO] finished tweaking git repo https://github.com/tobratland/learning-to-fly [INFO] tweaked toml for git repo https://github.com/tobratland/learning-to-fly written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/tobratland/learning-to-fly on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/tobratland/learning-to-fly 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded test-case v1.2.0 [INFO] [stderr] Downloaded simba v0.4.0 [INFO] [stderr] Downloaded nalgebra v0.26.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6d5d086555848fd9e61b030378375f449a5e2500a4cbb6843b396a40dc5595fa [INFO] running `Command { std: "docker" "start" "-a" "6d5d086555848fd9e61b030378375f449a5e2500a4cbb6843b396a40dc5595fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6d5d086555848fd9e61b030378375f449a5e2500a4cbb6843b396a40dc5595fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6d5d086555848fd9e61b030378375f449a5e2500a4cbb6843b396a40dc5595fa", kill_on_drop: false }` [INFO] [stdout] 6d5d086555848fd9e61b030378375f449a5e2500a4cbb6843b396a40dc5595fa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5fee7bec334c08f9148ea5987334edcb47948f5be2aaf72efc5c5405b01d5871 [INFO] running `Command { std: "docker" "start" "-a" "5fee7bec334c08f9148ea5987334edcb47948f5be2aaf72efc5c5405b01d5871", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.98 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling num-rational v0.3.2 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Compiling paste v1.0.5 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Checking matrixmultiply v0.3.1 [INFO] [stderr] Compiling wasm-bindgen v0.2.74 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling test-case v1.2.0 [INFO] [stderr] Checking maplit v1.0.2 [INFO] [stderr] Checking serde v1.0.126 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.74 [INFO] [stderr] Checking getrandom v0.2.3 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking approx v0.4.0 [INFO] [stderr] Checking num-complex v0.3.1 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking simba v0.4.0 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.74 [INFO] [stderr] Checking rand v0.8.4 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.74 [INFO] [stderr] Checking genetic-algorithm v0.1.0 (/opt/rustwide/workdir/libs/genetic-algorithm) [INFO] [stderr] Checking neural-network v0.1.0 (/opt/rustwide/workdir/libs/neural-network) [INFO] [stdout] error: expected one of `!` or `::`, found keyword `fn` [INFO] [stdout] --> libs/neural-network/src/lib.rs:14:11 [INFO] [stdout] | [INFO] [stdout] 13 | impl Network { [INFO] [stdout] | - while parsing this item list starting here [INFO] [stdout] 14 | crate fn new(layers: Vec) -> Self { [INFO] [stdout] | ^^ expected one of `!` or `::` [INFO] [stdout] ... [INFO] [stdout] 62 | } [INFO] [stdout] | - the item list ends here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(min_type_alias_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.56.0; see for more information [INFO] [stdout] = note: removed in favor of full type_alias_impl_trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: expected one of `!` or `::`, found keyword `fn` [INFO] [stdout] --> libs/neural-network/src/lib.rs:14:11 [INFO] [stdout] | [INFO] [stdout] 13 | impl Network { [INFO] [stdout] | - while parsing this item list starting here [INFO] [stdout] 14 | crate fn new(layers: Vec) -> Self { [INFO] [stdout] | ^^ expected one of `!` or `::` [INFO] [stdout] ... [INFO] [stdout] 62 | } [INFO] [stdout] | - the item list ends here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(min_type_alias_impl_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.56.0; see for more information [INFO] [stdout] = note: removed in favor of full type_alias_impl_trait [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> libs/neural-network/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(crate_visibility_modifier)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.63.0; see for more information [INFO] [stdout] = note: removed in favor of `pub(crate)` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:148:21 [INFO] [stdout] | [INFO] [stdout] 148 | type IntoIter = impl Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(impl_trait_in_assoc_type)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-12-03; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::SeedableRng` [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::SeedableRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand_chacha::ChaCha8Rng` [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use rand_chacha::ChaCha8Rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0557]: feature has been removed [INFO] [stdout] --> libs/neural-network/src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(crate_visibility_modifier)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed [INFO] [stdout] | [INFO] [stdout] = note: removed in 1.63.0; see for more information [INFO] [stdout] = note: removed in favor of `pub(crate)` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> libs/neural-network/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::once` [INFO] [stdout] --> libs/neural-network/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::iter::once; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0658]: `impl Trait` in associated types is unstable [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:148:21 [INFO] [stdout] | [INFO] [stdout] 148 | type IntoIter = impl Iterator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #63063 for more information [INFO] [stdout] = help: add `#![feature(impl_trait_in_assoc_type)]` to the crate attributes to enable [INFO] [stdout] = note: this compiler was built on 2025-12-03; consider upgrading it if it is out of date [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::SeedableRng` [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rand::SeedableRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand_chacha::ChaCha8Rng` [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use rand_chacha::ChaCha8Rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> libs/genetic-algorithm/src/lib.rs:358:9 [INFO] [stdout] | [INFO] [stdout] 358 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::thread_rng` [INFO] [stdout] --> libs/neural-network/src/lib.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand::thread_rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand::SeedableRng` [INFO] [stdout] --> libs/neural-network/src/lib.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use rand::SeedableRng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rand_chacha::ChaCha8Rng` [INFO] [stdout] --> libs/neural-network/src/lib.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rand_chacha::ChaCha8Rng; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::iter::once` [INFO] [stdout] --> libs/neural-network/src/lib.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::iter::once; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `genetic-algorithm` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `Network` in the current scope [INFO] [stdout] --> libs/neural-network/src/lib.rs:217:36 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Network { [INFO] [stdout] | ------------------ function or associated item `new` not found for this struct [INFO] [stdout] ... [INFO] [stdout] 217 | let network = Network::new(vec![ [INFO] [stdout] | ^^^ function or associated item not found in `Network` [INFO] [stdout] | [INFO] [stdout] = help: items from traits can only be used if the trait is implemented and in scope [INFO] [stdout] = note: the following trait defines an item `new`, perhaps you need to implement it: [INFO] [stdout] candidate #1: `UniformSampler` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stdout] error[E0599]: no function or associated item named `from_weights` found for struct `Network` in the current scope [INFO] [stdout] --> libs/neural-network/src/lib.rs:238:36 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Network { [INFO] [stdout] | ------------------ function or associated item `from_weights` not found for this struct [INFO] [stdout] ... [INFO] [stdout] 238 | let network = Network::from_weights(layers, weights.clone()); [INFO] [stdout] | ^^^^^^^^^^^^ function or associated item not found in `Network` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `neural-network` (lib) due to 2 previous errors; 4 warnings emitted [INFO] [stdout] Some errors have detailed explanations: E0557, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0557, E0658. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0557`. [INFO] [stdout] [INFO] [stderr] error: could not compile `neural-network` (lib test) due to 4 previous errors; 2 warnings emitted [INFO] [stderr] error: could not compile `genetic-algorithm` (lib test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "5fee7bec334c08f9148ea5987334edcb47948f5be2aaf72efc5c5405b01d5871", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5fee7bec334c08f9148ea5987334edcb47948f5be2aaf72efc5c5405b01d5871", kill_on_drop: false }` [INFO] [stdout] 5fee7bec334c08f9148ea5987334edcb47948f5be2aaf72efc5c5405b01d5871