[INFO] cloning repository https://github.com/ssuurrffaaccee/floatflow
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ssuurrffaaccee/floatflow" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssuurrffaaccee%2Ffloatflow", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssuurrffaaccee%2Ffloatflow'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68d09a525d3824a2838411dad4cbabdfa66d3a2d
[INFO] checking ssuurrffaaccee/floatflow against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fssuurrffaaccee%2Ffloatflow" "/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/ssuurrffaaccee/floatflow
[INFO] finished tweaking git repo https://github.com/ssuurrffaaccee/floatflow
[INFO] tweaked toml for git repo https://github.com/ssuurrffaaccee/floatflow written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ssuurrffaaccee/floatflow on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ssuurrffaaccee/floatflow 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c29b4ecaece3c3e8e3ddeeb4a1b4232c8cad63eac26c0e19f8a5d62de4c21922
[INFO] running `Command { std: "docker" "start" "-a" "c29b4ecaece3c3e8e3ddeeb4a1b4232c8cad63eac26c0e19f8a5d62de4c21922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c29b4ecaece3c3e8e3ddeeb4a1b4232c8cad63eac26c0e19f8a5d62de4c21922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c29b4ecaece3c3e8e3ddeeb4a1b4232c8cad63eac26c0e19f8a5d62de4c21922", kill_on_drop: false }`
[INFO] [stdout] c29b4ecaece3c3e8e3ddeeb4a1b4232c8cad63eac26c0e19f8a5d62de4c21922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd67f5f9e6d056396b560dd433766111a32c9457cde35e84bd9150e419f20017
[INFO] running `Command { std: "docker" "start" "-a" "dd67f5f9e6d056396b560dd433766111a32c9457cde35e84bd9150e419f20017", kill_on_drop: false }`
[INFO] [stderr]     Checking floatflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AdaGrad` and `Adam`
[INFO] [stdout]  --> src/executor.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::optimizer::{AdaGrad, Adam, Optimize, Optimizer, SGD};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdaGrad`, `Adam`, and `SGD`
[INFO] [stdout]  --> src/executor.rs:6:24
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::optimizer::{AdaGrad, Adam, Optimize, Optimizer, SGD};
[INFO] [stdout]   |                        ^^^^^^^  ^^^^                       ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/executor.rs:158:9
[INFO] [stdout]     |
[INFO] [stdout] 158 | /         exec.feed(
[INFO] [stdout] 159 | |             &HashMap::from([("x".to_string(), 0.1), ("y".to_string(), 0.2)]),
[INFO] [stdout] 160 | |             &mut s,
[INFO] [stdout] 161 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let _ = exec.feed(
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/executor.rs:162:9
[INFO] [stdout]     |
[INFO] [stdout] 162 |         exec.init_parameter(&HashMap::from([("p".to_string(), 0.1)]), &mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 162 |         let _ = exec.init_parameter(&HashMap::from([("p".to_string(), 0.1)]), &mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/executor.rs:164:9
[INFO] [stdout]     |
[INFO] [stdout] 164 |         exec.forward(&mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 164 |         let _ = exec.forward(&mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/executor.rs:165:9
[INFO] [stdout]     |
[INFO] [stdout] 165 |         exec.backward(&mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 165 |         let _ = exec.backward(&mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ops/add.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         mul.forward(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 85 |         let _ = mul.forward(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ops/add.rs:90:9
[INFO] [stdout]    |
[INFO] [stdout] 90 |         mul.backward(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 90 |         let _ = mul.backward(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/ops/add.rs:112:9
[INFO] [stdout]     |
[INFO] [stdout] 112 |         mul.forward(&mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let _ = mul.forward(&mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/ops/add.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |         mul.backward(&mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 117 |         let _ = mul.backward(&mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ops/minus.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         minus.forward(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let _ = minus.forward(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ops/minus.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |         minus.backward(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let _ = minus.backward(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ops/mul.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 84 |         mul.forward(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let _ = mul.forward(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/ops/mul.rs:89:9
[INFO] [stdout]    |
[INFO] [stdout] 89 |         mul.backward(&mut s);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 89 |         let _ = mul.backward(&mut s);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/ops/mul.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         mul.forward(&mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let _ = mul.forward(&mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/ops/mul.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         mul.backward(&mut s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let _ = mul.backward(&mut s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdaGrad` and `Adam`
[INFO] [stdout]  --> bin/solve_poly.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use floatflow::optimizer::{AdaGrad, Adam, Optimizer, SGD};
[INFO] [stdout]   |                            ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AdaGrad` and `Adam`
[INFO] [stdout]  --> bin/solve_poly.rs:4:28
[INFO] [stdout]   |
[INFO] [stdout] 4 | use floatflow::optimizer::{AdaGrad, Adam, Optimizer, SGD};
[INFO] [stdout]   |                            ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "dd67f5f9e6d056396b560dd433766111a32c9457cde35e84bd9150e419f20017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd67f5f9e6d056396b560dd433766111a32c9457cde35e84bd9150e419f20017", kill_on_drop: false }`
[INFO] [stdout] dd67f5f9e6d056396b560dd433766111a32c9457cde35e84bd9150e419f20017
