[INFO] cloning repository https://github.com/Miniwoffer/mdbook-dot [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Miniwoffer/mdbook-dot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiniwoffer%2Fmdbook-dot", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiniwoffer%2Fmdbook-dot'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5e7cf6e29993aa699ffcf60659acd6f62009f561 [INFO] checking Miniwoffer/mdbook-dot against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMiniwoffer%2Fmdbook-dot" "/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/Miniwoffer/mdbook-dot on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Miniwoffer/mdbook-dot [INFO] finished tweaking git repo https://github.com/Miniwoffer/mdbook-dot [INFO] tweaked toml for git repo https://github.com/Miniwoffer/mdbook-dot written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/Miniwoffer/mdbook-dot already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4fa1527f84b417d65c9178564c9754fd16ff489c1008d2e20a31f76b5a82c6b1 [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" "4fa1527f84b417d65c9178564c9754fd16ff489c1008d2e20a31f76b5a82c6b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4fa1527f84b417d65c9178564c9754fd16ff489c1008d2e20a31f76b5a82c6b1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4fa1527f84b417d65c9178564c9754fd16ff489c1008d2e20a31f76b5a82c6b1", kill_on_drop: false }` [INFO] [stdout] 4fa1527f84b417d65c9178564c9754fd16ff489c1008d2e20a31f76b5a82c6b1 [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" "RUSTFLAGS=--cap-lints=forbid" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--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] 22efeb0e9d83e51d8ca409d67c58ae80f583fbd2c7243735f9e999067276cc6c [INFO] running `Command { std: "docker" "start" "-a" "22efeb0e9d83e51d8ca409d67c58ae80f583fbd2c7243735f9e999067276cc6c", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling proc-macro2 v0.4.20 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling rand_core v0.3.0 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling serde v1.0.80 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling ryu v0.2.6 [INFO] [stderr] Checking byteorder v1.2.7 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking unicode-normalization v0.1.7 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Compiling httparse 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v0.6.9 [INFO] [stderr] Compiling phf_generator v0.7.23 [INFO] [stderr] Checking phf v0.7.23 [INFO] [stderr] Compiling phf_codegen v0.7.23 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling mime_guess v1.8.6 [INFO] [stderr] Checking chrono v0.4.6 [INFO] [stderr] Checking parking_lot v0.6.4 [INFO] [stderr] Checking hyper v0.10.15 [INFO] [stderr] Checking ws v0.7.9 [INFO] [stderr] Checking tokio-reactor v0.1.6 [INFO] [stderr] Checking backtrace v0.3.9 [INFO] [stderr] Checking error-chain v0.12.0 [INFO] [stderr] Checking inotify v0.6.1 [INFO] [stderr] Checking notify v4.0.6 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Checking env_logger v0.5.13 [INFO] [stderr] Compiling pest_generator v2.0.0 [INFO] [stderr] Checking serde_json v1.0.32 [INFO] [stderr] Checking toml v0.4.8 [INFO] [stderr] Compiling strum_macros v0.9.1 [INFO] [stderr] Checking iron v0.6.0 [INFO] [stderr] Checking mount v0.4.0 [INFO] [stderr] Checking staticfile v0.5.0 [INFO] [stderr] Compiling pest_derive v2.0.1 [INFO] [stderr] Checking toml-query v0.7.0 [INFO] [stderr] Checking handlebars v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.80 [INFO] [stderr] Compiling html5ever v0.22.5 [INFO] [stderr] Compiling markup5ever v0.7.3 [INFO] [stderr] Checking elasticlunr-rs v2.3.3 [INFO] [stderr] Checking ammonia v1.2.0 [INFO] [stderr] Checking mdbook v0.2.3 [INFO] [stderr] Checking mdbook-dot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `ArgMatches` [INFO] [stdout] --> src/bin/mdbook-dot.rs:6:22 [INFO] [stdout] | [INFO] [stdout] 6 | use clap::{App, Arg, ArgMatches, SubCommand}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/bin/mdbook-dot.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Chapter` [INFO] [stdout] --> src/bin/mdbook-dot.rs:14:34 [INFO] [stdout] | [INFO] [stdout] 14 | use mdbook::book::{Book,BookItem,Chapter}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ArgMatches` [INFO] [stdout] --> src/bin/mdbook-dot.rs:6:22 [INFO] [stdout] | [INFO] [stdout] 6 | use clap::{App, Arg, ArgMatches, SubCommand}; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/bin/mdbook-dot.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Chapter` [INFO] [stdout] --> src/bin/mdbook-dot.rs:14:34 [INFO] [stdout] | [INFO] [stdout] 14 | use mdbook::book::{Book,BookItem,Chapter}; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sub_args` [INFO] [stdout] --> src/bin/mdbook-dot.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | if let Some(sub_args) = matches.subcommand_matches("supports") { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_args` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `front` [INFO] [stdout] --> src/bin/mdbook-dot.rs:81:34 [INFO] [stdout] | [INFO] [stdout] 81 | ... let (front,back) = chapter.content.split_at(start); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_front` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num_replaced_items` [INFO] [stdout] --> src/bin/mdbook-dot.rs:68:29 [INFO] [stdout] | [INFO] [stdout] 68 | fn process <'a,I>(items: I, num_replaced_items: &mut usize) -> Result<()> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_replaced_items` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `path` [INFO] [stdout] --> src/bin/mdbook-dot.rs:112:32 [INFO] [stdout] | [INFO] [stdout] 112 | fn dot_to_image(input : String,path : String) -> Result { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_path` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `renderer` [INFO] [stdout] --> src/bin/mdbook-dot.rs:64:33 [INFO] [stdout] | [INFO] [stdout] 64 | fn supports_renderer(&self, renderer: &str) -> bool { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_renderer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/mdbook-dot.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | let mut stdin = dot.stdin.as_mut().expect("Failed to open stdin"); [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 variable: `sub_args` [INFO] [stdout] --> src/bin/mdbook-dot.rs:34:17 [INFO] [stdout] | [INFO] [stdout] 34 | if let Some(sub_args) = matches.subcommand_matches("supports") { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sub_args` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `front` [INFO] [stdout] --> src/bin/mdbook-dot.rs:81:34 [INFO] [stdout] | [INFO] [stdout] 81 | ... let (front,back) = chapter.content.split_at(start); [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_front` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `num_replaced_items` [INFO] [stdout] --> src/bin/mdbook-dot.rs:68:29 [INFO] [stdout] | [INFO] [stdout] 68 | fn process <'a,I>(items: I, num_replaced_items: &mut usize) -> Result<()> [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_replaced_items` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `path` [INFO] [stdout] --> src/bin/mdbook-dot.rs:112:32 [INFO] [stdout] | [INFO] [stdout] 112 | fn dot_to_image(input : String,path : String) -> Result { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_path` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `renderer` [INFO] [stdout] --> src/bin/mdbook-dot.rs:64:33 [INFO] [stdout] | [INFO] [stdout] 64 | fn supports_renderer(&self, renderer: &str) -> bool { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_renderer` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/mdbook-dot.rs:118:13 [INFO] [stdout] | [INFO] [stdout] 118 | let mut stdin = dot.stdin.as_mut().expect("Failed to open stdin"); [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/bin/mdbook-dot.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | serde_json::to_writer(io::stdout(), &processed_book); [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/bin/mdbook-dot.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | process(&mut book.sections, &mut num_replaced_items); [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: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/bin/mdbook-dot.rs:40:5 [INFO] [stdout] | [INFO] [stdout] 40 | serde_json::to_writer(io::stdout(), &processed_book); [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/bin/mdbook-dot.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | process(&mut book.sections, &mut num_replaced_items); [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: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 53s [INFO] running `Command { std: "docker" "inspect" "22efeb0e9d83e51d8ca409d67c58ae80f583fbd2c7243735f9e999067276cc6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22efeb0e9d83e51d8ca409d67c58ae80f583fbd2c7243735f9e999067276cc6c", kill_on_drop: false }` [INFO] [stdout] 22efeb0e9d83e51d8ca409d67c58ae80f583fbd2c7243735f9e999067276cc6c