[INFO] cloning repository https://github.com/gilcu2/hello_cargo [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gilcu2/hello_cargo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilcu2%2Fhello_cargo", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilcu2%2Fhello_cargo'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e6a417b071622947dab633ba53d70b96ebb40850 [INFO] documenting gilcu2/hello_cargo against beta-2020-08-29 for beta-1.47-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilcu2%2Fhello_cargo" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/gilcu2/hello_cargo on toolchain beta-2020-08-29 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/gilcu2/hello_cargo [INFO] finished tweaking git repo https://github.com/gilcu2/hello_cargo [INFO] tweaked toml for git repo https://github.com/gilcu2/hello_cargo written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/gilcu2/hello_cargo already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rusty-machine v0.5.4 [INFO] [stderr] Downloaded derive-new v0.5.6 [INFO] [stderr] Downloaded rulinalg v0.3.7 [INFO] [stderr] Downloaded ordered_iter v0.1.1 [INFO] [stderr] Downloaded vectors v0.3.0 [INFO] [stderr] Downloaded serde_derive v1.0.93 [INFO] [stderr] Downloaded serde v1.0.93 [INFO] [stderr] Downloaded tokio v0.1.19 [INFO] [stderr] Downloaded libc v0.2.53 [INFO] [stderr] Downloaded vpsearch v1.3.5 [INFO] [stderr] Downloaded rspec v1.0.0-beta.4 [INFO] [stderr] Downloaded optimization v0.1.0 [INFO] [stderr] Downloaded rustlearn v0.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] cbef9bdf01f799a294a278422d54e52dded57c8525c54548b7782d90e3133e39 [INFO] running `Command { std: "docker" "start" "-a" "cbef9bdf01f799a294a278422d54e52dded57c8525c54548b7782d90e3133e39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cbef9bdf01f799a294a278422d54e52dded57c8525c54548b7782d90e3133e39", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cbef9bdf01f799a294a278422d54e52dded57c8525c54548b7782d90e3133e39", kill_on_drop: false }` [INFO] [stdout] cbef9bdf01f799a294a278422d54e52dded57c8525c54548b7782d90e3133e39 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 97110cc6748f4b0c2c88712032847979bb7e38487de461a7e3a011a2845869ad [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "97110cc6748f4b0c2c88712032847979bb7e38487de461a7e3a011a2845869ad", kill_on_drop: false }` [INFO] [stderr] Checking futures v0.1.26 [INFO] [stderr] Compiling proc-macro2 v0.4.29 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling cc v1.0.36 [INFO] [stderr] Checking rustc-demangle v0.1.14 [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking rawpointer v0.1.0 [INFO] [stderr] Compiling bitflags v1.0.5 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Compiling serde v1.0.93 [INFO] [stderr] Compiling backtrace v0.3.15 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking tokio-trace-core v0.1.0 [INFO] [stderr] Checking bit-set v0.5.1 [INFO] [stderr] Compiling rustlearn v0.5.0 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking socket2 v0.3.8 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking signal-hook-registry v1.0.1 [INFO] [stderr] Checking hostname v0.1.5 [INFO] [stderr] Checking rand_chacha v0.1.1 [INFO] [stderr] Checking vpsearch v1.3.5 [INFO] [stderr] Checking ordered_iter v0.1.1 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking resolv-conf v0.6.2 [INFO] [stderr] Checking regex v1.1.6 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking signal-hook v0.1.9 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking rulinalg v0.3.7 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking vectors v0.3.0 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking optimization v0.1.0 [INFO] [stderr] Checking tokio-executor v0.1.7 [INFO] [stderr] Checking tokio-io v0.1.12 [INFO] [stderr] Checking tokio-sync v0.1.5 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking tokio-timer v0.2.10 [INFO] [stderr] Checking tokio-current-thread v0.1.6 [INFO] [stderr] Checking parking_lot_core v0.4.0 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Compiling backtrace-sys v0.1.28 [INFO] [stderr] Checking tokio-threadpool v0.1.14 [INFO] [stderr] Checking rusty-machine v0.5.4 [INFO] [stderr] Checking tokio-reactor v0.1.9 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-signal v0.2.7 [INFO] [stderr] Checking tokio-fs v0.1.6 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking tokio v0.1.19 [INFO] [stderr] Compiling synstructure v0.10.1 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Compiling serde_derive v1.0.93 [INFO] [stderr] Compiling actix_derive v0.3.2 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking trust-dns-proto v0.6.3 [INFO] [stderr] Checking trust-dns-proto v0.5.0 [INFO] [stderr] Checking trust-dns-resolver v0.10.3 [INFO] [stderr] Checking actix v0.7.9 [INFO] [stderr] Checking hello_cargo v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Documenting hello_cargo v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0053]: method `compute_grad` has an incompatible type for trait [INFO] [stdout] --> src/bin/gradient_descendent_2D.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | fn compute_grad(&self, params: &[(f64, f64)], _: &Matrix, _: &Matrix) -> (f64, Vec) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `f64`, found tuple [INFO] [stdout] | [INFO] [stdout] = note: expected fn pointer `fn(&XSqModel2D, &[f64], &rm::prelude::Matrix<(f64, f64)>, &rm::prelude::Matrix) -> (_, std::vec::Vec<_>)` [INFO] [stdout] found fn pointer `fn(&XSqModel2D, &[(f64, f64)], &rm::prelude::Matrix, &rm::prelude::Matrix) -> (_, std::vec::Vec<_>)` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0053`. [INFO] [stdout] [INFO] [stderr] error: Could not document `hello_cargo`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name gradient_descendent_2D src/bin/gradient_descendent_2D.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-2f7dc9160da90658.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-a0f5f1a4e2a9ffb3.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-07c1c721c2e9c3cd.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-806a3f1cfc78d862.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-99783589df8d6eaf.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-685174e8c46dadd4.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-7a899a2766d959e9.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-5661f05e24df2ec2.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-78c7d48c8de7ac08.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-2507121956b24f5c.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-89d57f5e44545cef.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "97110cc6748f4b0c2c88712032847979bb7e38487de461a7e3a011a2845869ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97110cc6748f4b0c2c88712032847979bb7e38487de461a7e3a011a2845869ad", kill_on_drop: false }` [INFO] [stdout] 97110cc6748f4b0c2c88712032847979bb7e38487de461a7e3a011a2845869ad