[INFO] cloning repository https://github.com/Janko-dev/rusty_graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Janko-dev/rusty_graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Frusty_graph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Frusty_graph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fec81dcb07d4feedcd77c6f833c3fd378b460985
[INFO] testing Janko-dev/rusty_graph against 1.93.0 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJanko-dev%2Frusty_graph" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Janko-dev/rusty_graph
[INFO] finished tweaking git repo https://github.com/Janko-dev/rusty_graph
[INFO] tweaked toml for git repo https://github.com/Janko-dev/rusty_graph written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Janko-dev/rusty_graph on toolchain 1.93.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.93.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Janko-dev/rusty_graph 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" "+1.93.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thiserror-impl v1.0.35
[INFO] [stderr]   Downloaded serde_derive v1.0.144
[INFO] [stderr]   Downloaded once_cell v1.14.0
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[INFO] [stderr]   Downloaded proc-macro2 v1.0.43
[INFO] [stderr]   Downloaded calloop v0.10.3
[INFO] [stderr]   Downloaded serde v1.0.144
[INFO] [stderr]   Downloaded syn v1.0.100
[INFO] [stderr]   Downloaded nix v0.25.0
[INFO] [stderr]   Downloaded libc v0.2.133
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1.93.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6b4f38c53be4c4044863bfed7d53c49f1cd4154b0a599b76cebf15edd744725
[INFO] running `Command { std: "docker" "start" "-a" "b6b4f38c53be4c4044863bfed7d53c49f1cd4154b0a599b76cebf15edd744725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6b4f38c53be4c4044863bfed7d53c49f1cd4154b0a599b76cebf15edd744725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b4f38c53be4c4044863bfed7d53c49f1cd4154b0a599b76cebf15edd744725", kill_on_drop: false }`
[INFO] [stdout] b6b4f38c53be4c4044863bfed7d53c49f1cd4154b0a599b76cebf15edd744725
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+1.93.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90bc064c7f4f61db981c3dc57ced5b2717377efd1d88237648ad8584a6cbb559
[INFO] running `Command { std: "docker" "start" "-a" "90bc064c7f4f61db981c3dc57ced5b2717377efd1d88237648ad8584a6cbb559", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.133
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.100
[INFO] [stderr]    Compiling once_cell v1.14.0
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libloading v0.7.3
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.35
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]    Compiling x11-dl v2.20.0
[INFO] [stderr]    Compiling ahash v0.8.2
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]    Compiling ttf-parser v0.17.1
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling ab_glyph_rasterizer v0.1.7
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling flate2 v1.0.24
[INFO] [stderr]    Compiling cmake v0.1.49
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[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling tracing v0.1.37
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling png v0.17.6
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling nix v0.24.2
[INFO] [stderr]    Compiling nix v0.25.0
[INFO] [stderr]    Compiling memmap2 v0.5.8
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling gethostname v0.2.3
[INFO] [stderr]    Compiling nix v0.22.3
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling freetype-rs v0.26.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling url v2.3.1
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]    Compiling owned_ttf_parser v0.17.1
[INFO] [stderr]    Compiling ab_glyph v0.2.18
[INFO] [stderr]    Compiling webbrowser v0.7.1
[INFO] [stderr]    Compiling wayland-commons v0.29.5
[INFO] [stderr]    Compiling x11rb v0.9.0
[INFO] [stderr]    Compiling bytemuck_derive v1.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.35
[INFO] [stderr]    Compiling foreign-types-macros v0.2.2
[INFO] [stderr]    Compiling foreign-types v0.5.0
[INFO] [stderr]    Compiling wayland-cursor v0.29.5
[INFO] [stderr]    Compiling wayland-egl v0.29.5
[INFO] [stderr]    Compiling calloop v0.10.3
[INFO] [stderr]    Compiling bytemuck v1.12.1
[INFO] [stderr]    Compiling tiny-skia-path v0.7.0
[INFO] [stderr]    Compiling safe_arch v0.5.2
[INFO] [stderr]    Compiling emath v0.19.0
[INFO] [stderr]    Compiling epaint v0.19.0
[INFO] [stderr]    Compiling tiny-skia v0.7.0
[INFO] [stderr]    Compiling egui v0.19.0
[INFO] [stderr]    Compiling arboard v2.1.1
[INFO] [stderr]    Compiling egui_glow v0.19.0
[INFO] [stderr]    Compiling sctk-adwaita v0.4.3
[INFO] [stderr]    Compiling smithay-clipboard v0.6.6
[INFO] [stderr]    Compiling winit v0.27.5
[INFO] [stderr]    Compiling glutin v0.29.1
[INFO] [stderr]    Compiling egui-winit v0.19.0
[INFO] [stderr]    Compiling eframe v0.19.0
[INFO] [stderr]    Compiling rusty_graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:65:40
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:99:40
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 09s
[INFO] running `Command { std: "docker" "inspect" "90bc064c7f4f61db981c3dc57ced5b2717377efd1d88237648ad8584a6cbb559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90bc064c7f4f61db981c3dc57ced5b2717377efd1d88237648ad8584a6cbb559", kill_on_drop: false }`
[INFO] [stdout] 90bc064c7f4f61db981c3dc57ced5b2717377efd1d88237648ad8584a6cbb559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+1.93.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 09654442b9858ae4340c47de0ff7bcba24bb440d275c56a48e6861cb3c5bbf20
[INFO] running `Command { std: "docker" "start" "-a" "09654442b9858ae4340c47de0ff7bcba24bb440d275c56a48e6861cb3c5bbf20", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:65:40
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:99:40
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:65:40
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:77:40
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:88:40
[INFO] [stdout]    |
[INFO] [stdout] 88 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stdout]   --> src/parser.rs:99:40
[INFO] [stdout]    |
[INFO] [stdout] 99 |         let op = tokens.peek().unwrap().clone();
[INFO] [stdout]    |                                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "09654442b9858ae4340c47de0ff7bcba24bb440d275c56a48e6861cb3c5bbf20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09654442b9858ae4340c47de0ff7bcba24bb440d275c56a48e6861cb3c5bbf20", kill_on_drop: false }`
[INFO] [stdout] 09654442b9858ae4340c47de0ff7bcba24bb440d275c56a48e6861cb3c5bbf20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=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" "+1.93.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 924f1a02383e7c87349aa645c4340087384a4d224a430a8d8371502490f4a982
[INFO] running `Command { std: "docker" "start" "-a" "924f1a02383e7c87349aa645c4340087384a4d224a430a8d8371502490f4a982", kill_on_drop: false }`
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:65:40
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:77:40
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:88:40
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:99:40
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:65:40
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:77:40
[INFO] [stderr]    |
[INFO] [stderr] 77 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:88:40
[INFO] [stderr]    |
[INFO] [stderr] 88 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: using `.clone()` on a double reference, which returns `&scanner::Token<'_>` instead of cloning the inner type
[INFO] [stderr]   --> src/parser.rs:99:40
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let op = tokens.peek().unwrap().clone();
[INFO] [stderr]    |                                        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_graph` (lib) generated 4 warnings
[INFO] [stderr] warning: `rusty_graph` (lib test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusty_graph-21198ff627321beb)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test parser::tests::parse_complex_linear_equation ... ok
[INFO] [stdout] test scanner::tests::scan_simple_expr ... ok
[INFO] [stdout] test scanner::tests::scan_complex_expr ... ok
[INFO] [stdout] test parser::tests::parse_simple_equation ... ok
[INFO] [stdout] test tests::scanner_and_parser_integration_simple ... ok
[INFO] [stdout] test tests::solve_simple_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::solve_simple_test stdout ----
[INFO] [stdout] 100 + (x - 3.7) = y**3
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::solve_simple_test' (30) panicked at src/lib.rs:69:9:
[INFO] [stdout] assertion failed: false
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5922d76d7502 - std::backtrace_rs::backtrace::libunwind::trace::h90e89fac33585832
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5922d76d7502 - std::backtrace_rs::backtrace::trace_unsynchronized::heebcf2380a8e7359
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5922d76d7502 - std::sys::backtrace::_print_fmt::hdf3e2a22d2f810db
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:68:9
[INFO] [stdout]    3:     0x5922d76d7502 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hac1d885928ba8582
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:38:26
[INFO] [stdout]    4:     0x5922d76e7687 - core::fmt::rt::Argument::fmt::h6901eb7c19abebe8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5922d76e7687 - core::fmt::write::h83ebb4d32483be9e
[INFO] [stdout]    6:     0x5922d76a62b6 - std::io::default_write_fmt::h751a79cdae495f10
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5922d76a62b6 - std::io::Write::write_fmt::h9ef514f8700ff7b2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5922d76b68c9 - std::sys::backtrace::BacktraceLock::print::hcc2e1a3ac996c911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:41:9
[INFO] [stdout]    9:     0x5922d76b68c9 - std::panicking::default_hook::{{closure}}::h8e9c4d1276f0925f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5922d76b6761 - std::panicking::default_hook::h2b2078d38b534dfb
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5922d767aefe - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h39d051e7dedac6a7
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5922d767aefe - test::test_main_with_exit_callback::{{closure}}::h4b005fe75814c302
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5922d76b6b42 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd426070722c13cbf
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x5922d76b6b42 - std::panicking::panic_with_hook::h39b739724e701bfd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5922d76b69ba - std::panicking::panic_handler::{{closure}}::he540c4833054e458
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:691:13
[INFO] [stdout]   16:     0x5922d76b1f59 - std::sys::backtrace::__rust_end_short_backtrace::hfa179d89deec8aed
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:176:18
[INFO] [stdout]   17:     0x5922d769b07d - __rustc[d131491b17107b07]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5922d76f02bc - core::panicking::panic_fmt::ha564519d657d9c46
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5922d76f0282 - core::panicking::panic::h40aea00c5b72b770
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panicking.rs:150:5
[INFO] [stdout]   20:     0x5922d765240b - rusty_graph::tests::solve_simple_test::h2c7e2ebf54ca01c7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:69:9
[INFO] [stdout]   21:     0x5922d7652427 - rusty_graph::tests::solve_simple_test::{{closure}}::h28e09774ddd34d75
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:67:27
[INFO] [stdout]   22:     0x5922d7658676 - core::ops::function::FnOnce::call_once::hc73b113f4d6f307f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5922d767ad2b - core::ops::function::FnOnce::call_once::h0217b30cfdee2e67
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5922d767ad2b - test::__rust_begin_short_backtrace::h6d98714a1e28f556
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:663:18
[INFO] [stdout]   25:     0x5922d768e6ba - test::run_test_in_process::{{closure}}::he2c70d2634d3a3cc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:74
[INFO] [stdout]   26:     0x5922d768e6ba - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h40a0a825bcf17fdd
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   27:     0x5922d768e6ba - std::panicking::catch_unwind::do_call::h6c8eb5dd6e7b5975
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   28:     0x5922d768e6ba - std::panicking::catch_unwind::h55455eac2972ad1e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   29:     0x5922d768e6ba - std::panic::catch_unwind::h0025465150a5e558
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   30:     0x5922d768e6ba - test::run_test_in_process::hb61e682f9b630fbc
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:686:27
[INFO] [stdout]   31:     0x5922d768e6ba - test::run_test::{{closure}}::hc2c2a7a38ab176e2
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:607:43
[INFO] [stdout]   32:     0x5922d7668954 - test::run_test::{{closure}}::ha91867b85cd2a911
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/test/src/lib.rs:637:41
[INFO] [stdout]   33:     0x5922d7668954 - std::sys::backtrace::__rust_begin_short_backtrace::ha00a9fe02049c339
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/backtrace.rs:160:18
[INFO] [stdout]   34:     0x5922d766c282 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::hd629fba9153dfb55
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:92:13
[INFO] [stdout]   35:     0x5922d766c282 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4189018816a5c5d9
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   36:     0x5922d766c282 - std::panicking::catch_unwind::do_call::hf9fcdbca3c2e9877
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:581:40
[INFO] [stdout]   37:     0x5922d766c282 - std::panicking::catch_unwind::h97b92d88631c7c64
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5922d766c282 - std::panic::catch_unwind::ha77cdbb68e725e5e
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5922d766c282 - std::thread::lifecycle::spawn_unchecked::{{closure}}::h511f05bc1a132253
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/thread/lifecycle.rs:90:26
[INFO] [stdout]   40:     0x5922d766c282 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6b68b31e9b685cb8
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5922d76ad5ef - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h22a27d165e4e871d
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   42:     0x5922d76ad5ef - std::sys::thread::unix::Thread::new::thread_start::h45cc87bb053add0f
[INFO] [stdout]                                at /rustc/254b59607d4417e9dffbc307138ae5c86280fe4c/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   43:     0x7f0d7878eaa4 - <unknown>
[INFO] [stdout]   44:     0x7f0d7881ba64 - clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::solve_simple_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 5 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "924f1a02383e7c87349aa645c4340087384a4d224a430a8d8371502490f4a982", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "924f1a02383e7c87349aa645c4340087384a4d224a430a8d8371502490f4a982", kill_on_drop: false }`
[INFO] [stdout] 924f1a02383e7c87349aa645c4340087384a4d224a430a8d8371502490f4a982
