[INFO] fetching crate symbolics_calculus 0.1.5...
[INFO] testing symbolics_calculus-0.1.5 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate symbolics_calculus 0.1.5 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate symbolics_calculus 0.1.5
[INFO] finished tweaking crates.io crate symbolics_calculus 0.1.5
[INFO] tweaked toml for crates.io crate symbolics_calculus 0.1.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate symbolics_calculus 0.1.5 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to latest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74d4bea5ffbb6f611d52a60644c049614751bbacccfcd15a2dc7b0da6293f3de
[INFO] running `Command { std: "docker" "start" "-a" "74d4bea5ffbb6f611d52a60644c049614751bbacccfcd15a2dc7b0da6293f3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74d4bea5ffbb6f611d52a60644c049614751bbacccfcd15a2dc7b0da6293f3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74d4bea5ffbb6f611d52a60644c049614751bbacccfcd15a2dc7b0da6293f3de", kill_on_drop: false }`
[INFO] [stdout] 74d4bea5ffbb6f611d52a60644c049614751bbacccfcd15a2dc7b0da6293f3de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ba9d8a34dea0238a47bc731d383d91b0783fe843cf088f304718db6524c10da
[INFO] running `Command { std: "docker" "start" "-a" "2ba9d8a34dea0238a47bc731d383d91b0783fe843cf088f304718db6524c10da", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]    Compiling symbolics_core v0.1.5
[INFO] [stderr]    Compiling symbolics_calculus v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `apply` and `s`
[INFO] [stdout]  --> src/lib.rs:3:22
[INFO] [stdout]   |
[INFO] [stdout] 3 | use symbolics_core::{s, apply};
[INFO] [stdout]   |                      ^  ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]  --> src/lib.rs:6:38
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn deriv1<S: Into<String>>(self, S) -> Self;
[INFO] [stdout]   |                                      ^ help: try naming the parameter or explicitly ignoring it: `_: S`
[INFO] [stdout]   |
[INFO] [stdout]   = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]   = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]   = note: `#[warn(anonymous_parameters)]` (part of `#[warn(rust_2018_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:16:36
[INFO] [stdout]    |
[INFO] [stdout] 16 |             Add(a, b) => a.clone().deriv1(wrt.as_ref()) + b.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                    ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 16 |             Add(a, b) => a.clone().deriv1::<&T>(wrt.as_ref()) + b.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                          ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:16:69
[INFO] [stdout]    |
[INFO] [stdout] 16 |             Add(a, b) => a.clone().deriv1(wrt.as_ref()) + b.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                                                     ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                                                     |
[INFO] [stdout]    |                                                                     cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 16 |             Add(a, b) => a.clone().deriv1(wrt.as_ref()) + b.clone().deriv1::<&T>(wrt.as_ref()),
[INFO] [stdout]    |                                                                           ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:17:36
[INFO] [stdout]    |
[INFO] [stdout] 17 |             Mul(a, b) => a.clone().deriv1(wrt.as_ref())**b.clone() + *a.clone()*b.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                    ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 17 |             Mul(a, b) => a.clone().deriv1::<&T>(wrt.as_ref())**b.clone() + *a.clone()*b.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                          ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:17:91
[INFO] [stdout]    |
[INFO] [stdout] 17 |             Mul(a, b) => a.clone().deriv1(wrt.as_ref())**b.clone() + *a.clone()*b.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                                                                           ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                                                                           |
[INFO] [stdout]    |                                                                                           cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 17 |             Mul(a, b) => a.clone().deriv1(wrt.as_ref())**b.clone() + *a.clone()*b.clone().deriv1::<&T>(wrt.as_ref()),
[INFO] [stdout]    |                                                                                                 ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:18:78
[INFO] [stdout]    |
[INFO] [stdout] 18 | ...(a.clone().ln()*b.clone().deriv1(wrt.as_ref()) + (*b.clone()*a.clone().deriv1(wrt.as_ref())/(*a.clone()))),
[INFO] [stdout]    |                              ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Pow(a, b) => (*a.clone()^*b.clone()) * (a.clone().ln()*b.clone().deriv1::<&T>(wrt.as_ref()) + (*b.clone()*a.clone().deriv1(wrt.as_ref())/(*a.clone()))),
[INFO] [stdout]    |                                                                                    ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:18:123
[INFO] [stdout]    |
[INFO] [stdout] 18 | ...) + (*b.clone()*a.clone().deriv1(wrt.as_ref())/(*a.clone()))),
[INFO] [stdout]    |                              ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                              |
[INFO] [stdout]    |                              cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 18 |             Pow(a, b) => (*a.clone()^*b.clone()) * (a.clone().ln()*b.clone().deriv1(wrt.as_ref()) + (*b.clone()*a.clone().deriv1::<&T>(wrt.as_ref())/(*a.clone()))),
[INFO] [stdout]    |                                                                                                                                 ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:19:36
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Log(a, b) => a.clone().deriv1(wrt.as_ref()) / (*a.clone() * b.ln()),
[INFO] [stdout]    |                                    ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 19 |             Log(a, b) => a.clone().deriv1::<&T>(wrt.as_ref()) / (*a.clone() * b.ln()),
[INFO] [stdout]    |                                          ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:20:51
[INFO] [stdout]    |
[INFO] [stdout] 20 |             Sin(x) => x.clone().cos() * x.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                                   ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                                   |
[INFO] [stdout]    |                                                   cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 20 |             Sin(x) => x.clone().cos() * x.clone().deriv1::<&T>(wrt.as_ref()),
[INFO] [stdout]    |                                                         ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/lib.rs:21:52
[INFO] [stdout]    |
[INFO] [stdout] 21 |             Cos(x) => -x.clone().sin() * x.clone().deriv1(wrt.as_ref()),
[INFO] [stdout]    |                                                    ^^^^^^     ------ type must be known at this point
[INFO] [stdout]    |                                                    |
[INFO] [stdout]    |                                                    cannot infer type of the type parameter `S` declared on the method `deriv1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: multiple `impl`s satisfying `String: AsRef<_>` found in the following crates: `alloc`, `std`:
[INFO] [stdout]            - impl AsRef<OsStr> for String;
[INFO] [stdout]            - impl AsRef<Path> for String;
[INFO] [stdout]            - impl AsRef<[u8]> for String;
[INFO] [stdout]            - impl AsRef<str> for String;
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 21 |             Cos(x) => -x.clone().sin() * x.clone().deriv1::<&T>(wrt.as_ref()),
[INFO] [stdout]    |                                                          ++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `symbolics_calculus` (lib) due to 9 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "2ba9d8a34dea0238a47bc731d383d91b0783fe843cf088f304718db6524c10da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba9d8a34dea0238a47bc731d383d91b0783fe843cf088f304718db6524c10da", kill_on_drop: false }`
[INFO] [stdout] 2ba9d8a34dea0238a47bc731d383d91b0783fe843cf088f304718db6524c10da
