[INFO] fetching crate distributions 0.0.2...
[INFO] documenting distributions-0.0.2 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate distributions 0.0.2 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate distributions 0.0.2 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate distributions 0.0.2
[INFO] finished tweaking crates.io crate distributions 0.0.2
[INFO] tweaked toml for crates.io crate distributions 0.0.2 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded c_vec v1.0.12
[INFO] [stderr]   Downloaded GSL v0.4.31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b409e7d32a8690d1da558c6c44d8f27936ce2df45c48a79872c1b804e8fee694
[INFO] running `Command { std: "docker" "start" "-a" "b409e7d32a8690d1da558c6c44d8f27936ce2df45c48a79872c1b804e8fee694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b409e7d32a8690d1da558c6c44d8f27936ce2df45c48a79872c1b804e8fee694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b409e7d32a8690d1da558c6c44d8f27936ce2df45c48a79872c1b804e8fee694", kill_on_drop: false }`
[INFO] [stdout] b409e7d32a8690d1da558c6c44d8f27936ce2df45c48a79872c1b804e8fee694
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0722c96adea75bda363e077326161e2c272c93cfb036528d601d263aba7d730
[INFO] running `Command { std: "docker" "start" "-a" "e0722c96adea75bda363e077326161e2c272c93cfb036528d601d263aba7d730", kill_on_drop: false }`
[INFO] [stderr]     Checking c_vec v1.0.12
[INFO] [stderr]    Compiling GSL v0.4.31
[INFO] [stderr]  Documenting distributions v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]  --> src/gaussian.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand::{mod, Rng, task_rng, TaskRng};
[INFO] [stdout]   |                 ^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand::{r#mod, Rng, task_rng, TaskRng};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `i` for number literal
[INFO] [stdout]   --> src/gaussian.rs:68:22
[INFO] [stdout]    |
[INFO] [stdout] 68 |     for _ in range(0,20i) {
[INFO] [stdout]    |                      ^^^ invalid suffix `i`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected identifier, found keyword `mod`
[INFO] [stdout]  --> src/uniform.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand::{mod, Rng, task_rng, TaskRng};
[INFO] [stdout]   |                 ^^^ expected identifier, found keyword
[INFO] [stdout]   |
[INFO] [stdout] help: you can escape reserved keywords to use them as identifiers
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand::{r#mod, Rng, task_rng, TaskRng};
[INFO] [stdout]   |                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/uniform.rs:74:20
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for _ in range(0u, 99u) {
[INFO] [stdout]    |                    ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/uniform.rs:74:24
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for _ in range(0u, 99u) {
[INFO] [stdout]    |                        ^^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::Float`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rand` in `std`
[INFO] [stdout]  --> src/gaussian.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rand::distributions::{Sample, Normal,IndependentSample};
[INFO] [stdout]   |          ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::rand`
[INFO] [stdout]  --> src/gaussian.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand::{mod, Rng, task_rng, TaskRng};
[INFO] [stdout]   |          ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::Float`
[INFO] [stdout]  --> src/gaussian.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `rand` in `std`
[INFO] [stdout]  --> src/uniform.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::rand::distributions::{Sample, Normal,IndependentSample};
[INFO] [stdout]   |          ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::rand`
[INFO] [stdout]  --> src/uniform.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand::{mod, Rng, task_rng, TaskRng};
[INFO] [stdout]   |          ^^^^ could not find `rand` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::num::Float`
[INFO] [stdout]  --> src/uniform.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::num::Float;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^ no `Float` in `num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `experimental` in this scope
[INFO] [stdout]  --> src/lib.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![experimental]
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the attribute macro `test`
[INFO] [stdout]   --> src/gaussian.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[test]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the attribute macro `test`
[INFO] [stdout]   --> src/gaussian.rs:72:3
[INFO] [stdout]    |
[INFO] [stdout] 72 | #[test]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the attribute macro `test`
[INFO] [stdout]   --> src/gaussian.rs:80:3
[INFO] [stdout]    |
[INFO] [stdout] 80 | #[test]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot determine resolution for the attribute macro `test`
[INFO] [stdout]   --> src/uniform.rs:71:3
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[test]
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Normal` in this scope
[INFO] [stdout]   --> src/gaussian.rs:11:13
[INFO] [stdout]    |
[INFO] [stdout] 11 |     distri: Normal,
[INFO] [stdout]    |             ^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: there is an enum variant `std::num::FpCategory::Normal` and 1 other; try using the variant's enum
[INFO] [stdout]    |
[INFO] [stdout] 11 |     distri: std::num::FpCategory,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 11 |     distri: std::path::Component,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Sample` in this scope
[INFO] [stdout]   --> src/gaussian.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Sample<f64> for Gaussian {
[INFO] [stdout]    |      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `IndependentSample` in this scope
[INFO] [stdout]   --> src/gaussian.rs:28:6
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl IndependentSample<f64> for Gaussian {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Sample` in this scope
[INFO] [stdout]   --> src/uniform.rs:23:6
[INFO] [stdout]    |
[INFO] [stdout] 23 | impl Sample<f64> for Uniform {
[INFO] [stdout]    |      ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `IndependentSample` in this scope
[INFO] [stdout]   --> src/uniform.rs:29:6
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl IndependentSample<f64> for Uniform {
[INFO] [stdout]    |      ^^^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(non_ascii_idents)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove the attribute
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `non_ascii_idents` has been stable since 1.53.0 and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 24 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `distributions`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type lib --crate-name distributions src/lib.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern rgsl=/opt/rustwide/target/debug/deps/librgsl-bb049f9a3bfc68b4.rmeta --cap-lints=warn --crate-version 0.0.2` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "e0722c96adea75bda363e077326161e2c272c93cfb036528d601d263aba7d730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0722c96adea75bda363e077326161e2c272c93cfb036528d601d263aba7d730", kill_on_drop: false }`
[INFO] [stdout] e0722c96adea75bda363e077326161e2c272c93cfb036528d601d263aba7d730
