[INFO] fetching crate symbolics_calculus 0.1.5...
[INFO] checking symbolics_calculus-0.1.5 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-4
[INFO] extracting crate symbolics_calculus 0.1.5 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate symbolics_calculus 0.1.5 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded symbolics_core v0.1.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 296c19c218a65be0f1d6c5fad57509edce83260b24f5124d91808b78bdd4cba3
[INFO] running `Command { std: "docker" "start" "-a" "296c19c218a65be0f1d6c5fad57509edce83260b24f5124d91808b78bdd4cba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "296c19c218a65be0f1d6c5fad57509edce83260b24f5124d91808b78bdd4cba3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "296c19c218a65be0f1d6c5fad57509edce83260b24f5124d91808b78bdd4cba3", kill_on_drop: false }`
[INFO] [stdout] 296c19c218a65be0f1d6c5fad57509edce83260b24f5124d91808b78bdd4cba3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c9675773c4353b179e70227a34d1f55daed495c3ededb3c9bfb7083901870d16
[INFO] running `Command { std: "docker" "start" "-a" "c9675773c4353b179e70227a34d1f55daed495c3ededb3c9bfb7083901870d16", kill_on_drop: false }`
[INFO] [stderr]     Checking symbolics_core v0.1.5
[INFO] [stderr]     Checking symbolics_calculus v0.1.5 (/opt/rustwide/workdir)
[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] error: aborting due to 9 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[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] [stderr] error: could not compile `symbolics_calculus` (lib) due to 10 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 9 previous errors
[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 test) due to 10 previous errors
[INFO] running `Command { std: "docker" "inspect" "c9675773c4353b179e70227a34d1f55daed495c3ededb3c9bfb7083901870d16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9675773c4353b179e70227a34d1f55daed495c3ededb3c9bfb7083901870d16", kill_on_drop: false }`
[INFO] [stdout] c9675773c4353b179e70227a34d1f55daed495c3ededb3c9bfb7083901870d16