[INFO] cloning repository https://github.com/bpgigi/rust-gui
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bpgigi/rust-gui" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbpgigi%2Frust-gui", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbpgigi%2Frust-gui'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 764195d7201d8a7c323abb2086b5272f587f1aaf
[INFO] checking bpgigi/rust-gui against try#14e4661efa5acbf985e4fe564baae04683366cc1 for pr-157696
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbpgigi%2Frust-gui" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bpgigi/rust-gui
[INFO] finished tweaking git repo https://github.com/bpgigi/rust-gui
[INFO] tweaked toml for git repo https://github.com/bpgigi/rust-gui written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bpgigi/rust-gui on toolchain 14e4661efa5acbf985e4fe564baae04683366cc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bpgigi/rust-gui 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" "+14e4661efa5acbf985e4fe564baae04683366cc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f
[INFO] running `Command { std: "docker" "start" "bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f", 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" "bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f", 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" "bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f" "/opt/rustwide/cargo-home/bin/cargo" "+14e4661efa5acbf985e4fe564baae04683366cc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: value assigned to `new_petgraph_for_fdg` is never read
[INFO] [stdout]    --> src/app.rs:247:40
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut new_petgraph_for_fdg = StableGraph::<NodePayload, EdgePayload, Directed>::new();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 321 |             new_petgraph_for_fdg = directed_temp_graph;
[INFO] [stdout]     |             -------------------- `new_petgraph_for_fdg` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `new_petgraph_for_fdg` is never read
[INFO] [stdout]    --> src/app.rs:247:40
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut new_petgraph_for_fdg = StableGraph::<NodePayload, EdgePayload, Directed>::new();
[INFO] [stdout]     |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] ...
[INFO] [stdout] 321 |             new_petgraph_for_fdg = directed_temp_graph;
[INFO] [stdout]     |             -------------------- `new_petgraph_for_fdg` is overwritten here before the previous value is read
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f", kill_on_drop: false }`
[INFO] [stdout] bbb480d78d6c959af9b660984ff2b406b03139c84bd5e1fcfe6bc3b11463bb6f
