[INFO] cloning repository https://github.com/ccgauche/morpion_inverse_abstract
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ccgauche/morpion_inverse_abstract" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccgauche%2Fmorpion_inverse_abstract", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccgauche%2Fmorpion_inverse_abstract'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7fac107bf0400e63b2e50aaaebc3294e73a7fbae
[INFO] checking ccgauche/morpion_inverse_abstract/7fac107bf0400e63b2e50aaaebc3294e73a7fbae against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fccgauche%2Fmorpion_inverse_abstract" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ccgauche/morpion_inverse_abstract on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ccgauche/morpion_inverse_abstract
[INFO] finished tweaking git repo https://github.com/ccgauche/morpion_inverse_abstract
[INFO] tweaked toml for git repo https://github.com/ccgauche/morpion_inverse_abstract written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ccgauche/morpion_inverse_abstract 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.serde.feature
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strum v0.21.0
[INFO] [stderr]   Downloaded strum_macros v0.21.1
[INFO] [stderr]   Downloaded serde_derive v1.0.127
[INFO] [stderr]   Downloaded serde v1.0.127
[INFO] [stderr]   Downloaded thread-id v3.3.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded flamer v0.4.0
[INFO] [stderr]   Downloaded approx v0.5.0
[INFO] [stderr]   Downloaded paste v1.0.5
[INFO] [stderr]   Downloaded simba v0.6.0
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded wide v0.7.0
[INFO] [stderr]   Downloaded nalgebra-macros v0.1.0
[INFO] [stderr]   Downloaded flame v0.2.2
[INFO] [stderr]   Downloaded syn v1.0.74
[INFO] [stderr]   Downloaded nalgebra v0.29.0
[INFO] [stderr]   Downloaded libc v0.2.98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb7325f2cb4bf1bf8ba7ee998ae7174314fc03ac8aaeab28c85f6f82231a7c2c
[INFO] running `Command { std: "docker" "start" "-a" "cb7325f2cb4bf1bf8ba7ee998ae7174314fc03ac8aaeab28c85f6f82231a7c2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb7325f2cb4bf1bf8ba7ee998ae7174314fc03ac8aaeab28c85f6f82231a7c2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb7325f2cb4bf1bf8ba7ee998ae7174314fc03ac8aaeab28c85f6f82231a7c2c", kill_on_drop: false }`
[INFO] [stdout] cb7325f2cb4bf1bf8ba7ee998ae7174314fc03ac8aaeab28c85f6f82231a7c2c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e10c9422ef0c54f1ab8156d37fd0c4544372be501d6d52a3c82ded014852bb17
[INFO] running `Command { std: "docker" "start" "-a" "e10c9422ef0c54f1ab8156d37fd0c4544372be501d6d52a3c82ded014852bb17", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: dependencies.serde.feature
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking strum v0.21.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking wide v0.7.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]     Checking simba v0.6.0
[INFO] [stderr]    Compiling nalgebra-macros v0.1.0
[INFO] [stderr]    Compiling strum_macros v0.21.1
[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.4.0
[INFO] [stderr]     Checking lib-neural-network v0.0.0 (/opt/rustwide/workdir/net)
[INFO] [stdout] error: expected one of `!` or `::`, found keyword `fn`
[INFO] [stdout]   --> net/src/lib.rs:21:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Network {
[INFO] [stdout]    |              - while parsing this item list starting here
[INFO] [stdout] 21 |     crate fn new(layers: Vec<Layer>) -> Self {
[INFO] [stdout]    |           ^^ expected one of `!` or `::`
[INFO] [stdout] ...
[INFO] [stdout] 84 | }
[INFO] [stdout]    | - the item list ends here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> net/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(crate_visibility_modifier)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in favor of `pub(crate)`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `crate`
[INFO] [stdout]  --> net/src/layer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Layer {
[INFO] [stdout]   |            ----- while parsing this struct
[INFO] [stdout] 5 |     crate neurons: Vec<Neuron>,
[INFO] [stdout]   |     ^^^^^ expected identifier, found keyword
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `crate`
[INFO] [stdout]  --> net/src/neuron.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Neuron {
[INFO] [stdout]   |            ------ while parsing this struct
[INFO] [stdout] 5 |     crate bias: f32,
[INFO] [stdout]   |     ^^^^^ expected identifier, found keyword
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude::ThreadRng`
[INFO] [stdout]  --> net/src/lib.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::{prelude::ThreadRng, Rng, RngCore};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::iter::once`
[INFO] [stdout]  --> net/src/lib.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::iter::once;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_methods` has been stable since 1.77.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> net/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_methods)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib-neural-network` (lib) due to 5 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e10c9422ef0c54f1ab8156d37fd0c4544372be501d6d52a3c82ded014852bb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e10c9422ef0c54f1ab8156d37fd0c4544372be501d6d52a3c82ded014852bb17", kill_on_drop: false }`
[INFO] [stdout] e10c9422ef0c54f1ab8156d37fd0c4544372be501d6d52a3c82ded014852bb17