[INFO] cloning repository https://github.com/cydry3/myplumber
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cydry3/myplumber" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcydry3%2Fmyplumber", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcydry3%2Fmyplumber'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a272b55efc4039c7cde876d41166aecfc61241f
[INFO] documenting cydry3/myplumber 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%2Fcydry3%2Fmyplumber" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cydry3/myplumber 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/cydry3/myplumber
[INFO] finished tweaking git repo https://github.com/cydry3/myplumber
[INFO] tweaked toml for git repo https://github.com/cydry3/myplumber written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/cydry3/myplumber 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] cb80e35c3a810b4036eb6398a34b964cd7789052e72a7055110b780669772c65
[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" "cb80e35c3a810b4036eb6398a34b964cd7789052e72a7055110b780669772c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb80e35c3a810b4036eb6398a34b964cd7789052e72a7055110b780669772c65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb80e35c3a810b4036eb6398a34b964cd7789052e72a7055110b780669772c65", kill_on_drop: false }`
[INFO] [stdout] cb80e35c3a810b4036eb6398a34b964cd7789052e72a7055110b780669772c65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] f977f9dc9901aa13337343ac3e583bc3b84f86f59c2b1df317bc8a01fe3a0ad5
[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" "f977f9dc9901aa13337343ac3e583bc3b84f86f59c2b1df317bc8a01fe3a0ad5", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking myplumber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting myplumber v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/lib.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::fs::{self, File};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/future.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::expand_filename_arguments`
[INFO] [stdout]   --> src/future.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use super::expand_filename_arguments;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ThreadPool`
[INFO] [stdout]   --> src/future.rs:15:31
[INFO] [stdout]    |
[INFO] [stdout] 15 | use futures::executor::{self, ThreadPool};
[INFO] [stdout]    |                               ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/pipeline.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::expand_filename_arguments`
[INFO] [stdout]   --> src/pipeline.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use super::expand_filename_arguments;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/merge.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Write, BufWriter};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/merge.rs:132:1
[INFO] [stdout]     |
[INFO] [stdout] 132 | / macro_rules! create_tmpdir_if_not_exist {
[INFO] [stdout] 133 | |     ( $tmp_dir:tt ) => {
[INFO] [stdout] 134 | |         {
[INFO] [stdout] 135 | |             match fs::create_dir($tmp_dir) {
[INFO] [stdout] ...   |
[INFO] [stdout] 144 | |     }
[INFO] [stdout] 145 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/merge.rs:148:1
[INFO] [stdout]     |
[INFO] [stdout] 148 | / macro_rules! emit_pseudo_index_files {
[INFO] [stdout] 149 | |     ( $dir:tt, $namebase:tt, $( $doc_id:tt ),* ) => {
[INFO] [stdout] 150 | |         {
[INFO] [stdout] 151 | |             let tmp_dir = $dir;
[INFO] [stdout] ...   |
[INFO] [stdout] 191 | |     }
[INFO] [stdout] 192 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/merge.rs:195:1
[INFO] [stdout]     |
[INFO] [stdout] 195 | / macro_rules! emit_entry_expected {
[INFO] [stdout] 196 | |     ( $( $doc_id:tt ),* ) => {
[INFO] [stdout] 197 | |         {
[INFO] [stdout] 198 | |             let mut bytes: Vec<u8> = vec![];
[INFO] [stdout] ...   |
[INFO] [stdout] 212 | |     }
[INFO] [stdout] 213 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/merge.rs:216:1
[INFO] [stdout]     |
[INFO] [stdout] 216 | / macro_rules! emit_deliverable_expected {
[INFO] [stdout] 217 | |     ( $( $doc_id:tt ),* ) => {
[INFO] [stdout] 218 | |         {
[INFO] [stdout] 219 | |             let mut bytes: Vec<u8> = vec![];
[INFO] [stdout] ...   |
[INFO] [stdout] 233 | |     }
[INFO] [stdout] 234 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]   --> src/lib.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     use std::fs::{self, File};
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/lib.rs:267:19
[INFO] [stdout]     |
[INFO] [stdout] 267 |     use std::fs::{self, File};
[INFO] [stdout]     |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufWriter`
[INFO] [stdout]    --> src/lib.rs:269:46
[INFO] [stdout]     |
[INFO] [stdout] 269 |     use std::io::{self, BufReader, SeekFrom, BufWriter};
[INFO] [stdout]     |                                              ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::index::InMemoryIndex`
[INFO] [stdout]    --> src/lib.rs:273:9
[INFO] [stdout]     |
[INFO] [stdout] 273 |     use crate::index::InMemoryIndex;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/lib.rs:547:1
[INFO] [stdout]     |
[INFO] [stdout] 547 | / macro_rules! create_outdir_if_not_exist {
[INFO] [stdout] 548 | |     ( $out_dir:tt ) => {
[INFO] [stdout] 549 | |         {
[INFO] [stdout] 550 | |             match fs::create_dir($out_dir) {
[INFO] [stdout] ...   |
[INFO] [stdout] 559 | |     }
[INFO] [stdout] 560 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::prelude`
[INFO] [stdout]   --> src/future.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use futures::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:317:17
[INFO] [stdout]     |
[INFO] [stdout] 317 |             let mut main_reader = BufReader::new(main_raw);
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/lib.rs:511:9
[INFO] [stdout]     |
[INFO] [stdout] 511 |         f.read_to_string(&mut text);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/merge.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 61 |             merge_reversed(&mut tmp, &mut self.tmp_dir);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/merge.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |                 s.move_entry_to(&mut output);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/merge.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 126 |     merge_streams(to_merge, out);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:62:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |             self.content_buf.write_u64::<LittleEndian>(offset);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:63:13
[INFO] [stdout]    |
[INFO] [stdout] 63 |             self.content_buf.write_u64::<LittleEndian>(nbytes);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 64 |             self.content_buf.write_u32::<LittleEndian>(df);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/lib.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             self.writer.flush();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 26 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.89s
[INFO] running `Command { std: "docker" "inspect" "f977f9dc9901aa13337343ac3e583bc3b84f86f59c2b1df317bc8a01fe3a0ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f977f9dc9901aa13337343ac3e583bc3b84f86f59c2b1df317bc8a01fe3a0ad5", kill_on_drop: false }`
[INFO] [stdout] f977f9dc9901aa13337343ac3e583bc3b84f86f59c2b1df317bc8a01fe3a0ad5