[INFO] cloning repository https://github.com/whentze/piff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/whentze/piff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhentze%2Fpiff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhentze%2Fpiff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b34f0dcce33f15255f5e45e903cd36172c2686a2
[INFO] documenting whentze/piff against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwhentze%2Fpiff" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/whentze/piff on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/whentze/piff
[INFO] finished tweaking git repo https://github.com/whentze/piff
[INFO] tweaked toml for git repo https://github.com/whentze/piff written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/whentze/piff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpal v0.6.0
[INFO] [stderr]   Downloaded coreaudio-rs v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8052d3a0f961ce9607a497b344e4c35886827ccbc5f135ba656ba8315b0a7496
[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" "8052d3a0f961ce9607a497b344e4c35886827ccbc5f135ba656ba8315b0a7496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8052d3a0f961ce9607a497b344e4c35886827ccbc5f135ba656ba8315b0a7496", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8052d3a0f961ce9607a497b344e4c35886827ccbc5f135ba656ba8315b0a7496", kill_on_drop: false }`
[INFO] [stdout] 8052d3a0f961ce9607a497b344e4c35886827ccbc5f135ba656ba8315b0a7496
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 6f26a04c99561c6f5604ea4ce8a53c8d39276b09ead1a52f96727b5a4e62887d
[INFO] running `Command { std: "docker" "start" "-a" "6f26a04c99561c6f5604ea4ce8a53c8d39276b09ead1a52f96727b5a4e62887d", kill_on_drop: false }`
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]     Checking termion v1.5.1
[INFO] [stderr]     Checking cpal v0.6.0
[INFO] [stderr]  Documenting piff v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0407]: method `replace_one` is not a member of trait `Step`
[INFO] [stdout]    --> src/definitions.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | /     fn replace_one(&mut self) -> Self {
[INFO] [stdout] 118 | |         let res = *self;
[INFO] [stdout] 119 | |         *self = Note {
[INFO] [stdout] 120 | |             octave: 0,
[INFO] [stdout] ...   |
[INFO] [stdout] 123 | |         res
[INFO] [stdout] 124 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `replace_zero` is not a member of trait `Step`
[INFO] [stdout]    --> src/definitions.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 | /     fn replace_zero(&mut self) -> Self {
[INFO] [stdout] 127 | |         let res = *self;
[INFO] [stdout] 128 | |         *self = Note {
[INFO] [stdout] 129 | |             octave: 0,
[INFO] [stdout] ...   |
[INFO] [stdout] 132 | |         res
[INFO] [stdout] 133 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `add_one` is not a member of trait `Step`
[INFO] [stdout]    --> src/definitions.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 135 | /     fn add_one(&self) -> Self {
[INFO] [stdout] 136 | |         *self + 1
[INFO] [stdout] 137 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `sub_one` is not a member of trait `Step`
[INFO] [stdout]    --> src/definitions.rs:139:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | /     fn sub_one(&self) -> Self {
[INFO] [stdout] 140 | |         match self.class as u8 {
[INFO] [stdout] 141 | |             0 => Note {
[INFO] [stdout] 142 | |                 class: B,
[INFO] [stdout] ...   |
[INFO] [stdout] 152 | |         }
[INFO] [stdout] 153 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0407]: method `add_usize` is not a member of trait `Step`
[INFO] [stdout]    --> src/definitions.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 155 | /     fn add_usize(&self, n: usize) -> Option<Self> {
[INFO] [stdout] 156 | |         if n < 256 {
[INFO] [stdout] 157 | |             Some(*self + n as u8)
[INFO] [stdout] 158 | |         } else {
[INFO] [stdout] 159 | |             None
[INFO] [stdout] 160 | |         }
[INFO] [stdout] 161 | |     }
[INFO] [stdout]     | |_____^ not a member of trait `Step`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(step_trait, integer_atomics)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0407, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0407`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `piff`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name piff src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cpal=/opt/rustwide/target/debug/deps/libcpal-f8526fb1e5d2f091.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-4cef34d6671a7dde.rmeta --extern termion=/opt/rustwide/target/debug/deps/libtermion-aa29c036fe6083c5.rmeta --cap-lints=warn --crate-version 0.1.0` (exit code: 1)
[INFO] running `Command { std: "docker" "inspect" "6f26a04c99561c6f5604ea4ce8a53c8d39276b09ead1a52f96727b5a4e62887d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f26a04c99561c6f5604ea4ce8a53c8d39276b09ead1a52f96727b5a4e62887d", kill_on_drop: false }`
[INFO] [stdout] 6f26a04c99561c6f5604ea4ce8a53c8d39276b09ead1a52f96727b5a4e62887d
