[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-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgilcu2%2Fhello_cargo" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gilcu2/hello_cargo on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-20/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-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4aec795675ed3607813cc2f4905b6a1a66e1da9fd96c443cfb4dbd799ff9979
[INFO] running `Command { std: "docker" "start" "-a" "e4aec795675ed3607813cc2f4905b6a1a66e1da9fd96c443cfb4dbd799ff9979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4aec795675ed3607813cc2f4905b6a1a66e1da9fd96c443cfb4dbd799ff9979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4aec795675ed3607813cc2f4905b6a1a66e1da9fd96c443cfb4dbd799ff9979", kill_on_drop: false }`
[INFO] [stdout] e4aec795675ed3607813cc2f4905b6a1a66e1da9fd96c443cfb4dbd799ff9979
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2e0d24999e458be3805e7f639a86d693d23126ab3316f4d898b65a2d1a0d437
[INFO] running `Command { std: "docker" "start" "-a" "c2e0d24999e458be3805e7f639a86d693d23126ab3316f4d898b65a2d1a0d437", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]     Checking futures v0.1.26
[INFO] [stderr]     Checking smallvec v0.6.9
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking rustc-demangle v0.1.14
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]     Checking arc-swap v0.3.11
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling bitflags v1.0.5
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling serde v1.0.93
[INFO] [stderr]     Checking linked-hash-map v0.5.2
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking tokio-trace-core v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.6
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking owning_ref v0.4.0
[INFO] [stderr]     Checking tokio-sync v0.1.5
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling rustlearn v0.5.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking ordered_iter v0.1.1
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking tokio-executor v0.1.7
[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 num_cpus v1.10.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking socket2 v0.3.8
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking signal-hook-registry v1.0.1
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking aho-corasick v0.7.3
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking vpsearch v1.3.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking vectors v0.3.0
[INFO] [stderr]     Checking tokio-timer v0.2.10
[INFO] [stderr]     Checking tokio-current-thread v0.1.6
[INFO] [stderr]     Checking resolv-conf v0.6.2
[INFO] [stderr]     Checking signal-hook v0.1.9
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking optimization v0.1.0
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.14
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking rusty-machine v0.5.4
[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 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[E0469]: imported macro not found
[INFO] [stdout]  --> src/bin/vectors.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use(dense_vec, sparse_vec)]
[INFO] [stdout]   |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0469]: imported macro not found
[INFO] [stdout]  --> src/bin/vectors.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use(dense_vec, sparse_vec)]
[INFO] [stdout]   |                        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `vectors::heap`
[INFO] [stdout]  --> src/bin/vectors.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | use vectors::heap::{SparseVector, DenseVector};
[INFO] [stdout]   |              ^^^^ could not find `heap` in `vectors`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0469.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[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 vectors src/bin/vectors.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=c1f88dcb4f29462d -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0053]: method `compute_grad` has an incompatible type for trait
[INFO] [stdout]   --> src/bin/gradient_descendent_2D.rs:17:36
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn compute_grad(&self, params: &[(f64, f64)], _: &Matrix<f64>, _: &Matrix<f64>) -> (f64, Vec<f64>) {
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^
[INFO] [stdout]    |                                    |
[INFO] [stdout]    |                                    expected `f64`, found tuple
[INFO] [stdout]    |                                    help: change the parameter type to match the trait: `&[f64]`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected fn pointer `fn(&XSqModel2D, &[f64], &rm::prelude::Matrix<(f64, f64)>, &rm::prelude::Matrix<f64>) -> (_, std::vec::Vec<_>)`
[INFO] [stdout]               found fn pointer `fn(&XSqModel2D, &[(f64, f64)], &rm::prelude::Matrix<f64>, &rm::prelude::Matrix<f64>) -> (_, 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,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=32e3f858703e60c0 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[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 memory_usage src/bin/memory_usage.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=4394a0b803105d98 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 figures src/bin/figures.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=abeb0b5a1e1a762c -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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_optimization_1d_sqr src/bin/gradient_descendent_optimization_1d_sqr.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=edbe7988afcbc6cd -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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_rusty_machine src/bin/gradient_descendent_rusty_machine.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=5180dab7f18f6318 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 fmt src/bin/fmt.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=1f81fc7d040e7053 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 word_counter src/bin/word_counter.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=531fb33f5e27d1ec -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 fahrenheit_celsius src/bin/fahrenheit_celsius.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=99171dadc96d8523 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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_optimization src/bin/gradient_descendent_optimization.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=5d962199a1b18b01 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 arrays src/bin/arrays.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=d662dd474364378f -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 strings src/bin/strings.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=a138540ad6a36c73 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 hello src/bin/hello.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=b6293ec18282db22 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 sum src/bin/sum.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=8d4583081cb73de0 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 mutable_string src/bin/mutable_string.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=831e93e552d66630 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[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 sgd_classifier src/bin/sgd_classifier.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=01cb744cb37c2da1 -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-531549ceacc50f42.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-3c2b812b58e7d419.rmeta --extern hello_cargo=/opt/rustwide/target/debug/deps/libhello_cargo-3c7b6da7465882f7.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-0cf7b0f7c5116b2b.rmeta --extern optimization=/opt/rustwide/target/debug/deps/liboptimization-ba0f7512a9035ba8.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-2f70252e7450b20b.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-36d7aff6a3728897.rmeta --extern rustlearn=/opt/rustwide/target/debug/deps/librustlearn-fc1505e2ab2a1d60.rmeta --extern rusty_machine=/opt/rustwide/target/debug/deps/librusty_machine-b4f2f6f05241c7ef.rmeta --extern vectors=/opt/rustwide/target/debug/deps/libvectors-51b6d3a919f5e896.rmeta --extern vpsearch=/opt/rustwide/target/debug/deps/libvpsearch-c9572ab95745740c.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "c2e0d24999e458be3805e7f639a86d693d23126ab3316f4d898b65a2d1a0d437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e0d24999e458be3805e7f639a86d693d23126ab3316f4d898b65a2d1a0d437", kill_on_drop: false }`
[INFO] [stdout] c2e0d24999e458be3805e7f639a86d693d23126ab3316f4d898b65a2d1a0d437