[INFO] cloning repository https://github.com/tsoutsman/graph-expressiveness
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsoutsman/graph-expressiveness" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsoutsman%2Fgraph-expressiveness", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsoutsman%2Fgraph-expressiveness'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0a9a19e1ed2d3ebec2cb5377da2b5a820a2d0886
[INFO] checking tsoutsman/graph-expressiveness against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsoutsman%2Fgraph-expressiveness" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsoutsman/graph-expressiveness
[INFO] finished tweaking git repo https://github.com/tsoutsman/graph-expressiveness
[INFO] tweaked toml for git repo https://github.com/tsoutsman/graph-expressiveness written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsoutsman/graph-expressiveness on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsoutsman/graph-expressiveness 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86
[INFO] running `Command { std: "docker" "start" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]     Checking bytemuck v1.19.0
[INFO] [stderr]    Compiling matrixmultiply v0.3.9
[INFO] [stderr]    Compiling cc v1.1.31
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking safe_arch v0.7.2
[INFO] [stderr]     Checking wide v0.7.28
[INFO] [stderr]    Compiling blake3 v1.5.4
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]     Checking simba v0.9.0
[INFO] [stderr]    Compiling nalgebra-macros v0.2.2
[INFO] [stderr]     Checking nalgebra v0.33.0
[INFO] [stderr]     Checking brute-force-gnn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `embed_large` is never used
[INFO] [stdout]   --> src/id_gnn_fast.rs:61:15
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub(crate) fn embed_large(n: usize, A: &DMatrix<u32>) -> [u8; 32] {
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `hash_large` is never used
[INFO] [stdout]   --> src/id_gnn_fast.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub(crate) fn hash_large(input: Vec<Vec<u64>>) -> [u8; 32] {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `multiset_hash_large` is never used
[INFO] [stdout]    --> src/id_gnn_fast.rs:102:4
[INFO] [stdout]     |
[INFO] [stdout] 102 | fn multiset_hash_large(hasher: &mut blake3::Hasher, mut set: Vec<u64>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `u64_to_u8` is never used
[INFO] [stdout]    --> src/id_gnn_fast.rs:107:4
[INFO] [stdout]     |
[INFO] [stdout] 107 | fn u64_to_u8(arr: &[u64]) -> &[u8] {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mathematicas` is never used
[INFO] [stdout]  --> src/mathematica.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) fn mathematicas(n: usize, connected: bool, v: Vec<Vec<usize>>) {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mathematica` is never used
[INFO] [stdout]   --> src/mathematica.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn mathematica(n: usize, graph: &DMatrix<u32>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `[u8; 32]`
[INFO] [stdout]   --> src/wl.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 neighbour_colours.push(colours[neighbour].into());
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 17 -                 neighbour_colours.push(colours[neighbour].into());
[INFO] [stdout] 17 +                 neighbour_colours.push(colours[neighbour]);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 17 -                 neighbour_colours.push(colours[neighbour].into());
[INFO] [stdout] 17 +                 neighbour_colours.push(<[u8; 32] as Into<_>>::into(colours[neighbour]));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brute-force-gnn` (bin "brute-force-gnn") due to 1 previous error; 6 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: function `mathematicas` is never used
[INFO] [stdout]  --> src/mathematica.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub(crate) fn mathematicas(n: usize, connected: bool, v: Vec<Vec<usize>>) {
[INFO] [stdout]   |               ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mathematica` is never used
[INFO] [stdout]   --> src/mathematica.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 | fn mathematica(n: usize, graph: &DMatrix<u32>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `[u8; 32]`
[INFO] [stdout]   --> src/wl.rs:17:40
[INFO] [stdout]    |
[INFO] [stdout] 17 |                 neighbour_colours.push(colours[neighbour].into());
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 17 -                 neighbour_colours.push(colours[neighbour].into());
[INFO] [stdout] 17 +                 neighbour_colours.push(colours[neighbour]);
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 17 -                 neighbour_colours.push(colours[neighbour].into());
[INFO] [stdout] 17 +                 neighbour_colours.push(<[u8; 32] as Into<_>>::into(colours[neighbour]));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `brute-force-gnn` (bin "brute-force-gnn" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86", kill_on_drop: false }`
[INFO] [stdout] 3667b77df3e5510d2112f84bdde7774d4e0564734cbea5253dc01da1ad103c86
