[INFO] cloning repository https://github.com/rnice01/yt-dl-to-anki-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rnice01/yt-dl-to-anki-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frnice01%2Fyt-dl-to-anki-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frnice01%2Fyt-dl-to-anki-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a077a60b353685b7ac43aec15ece58f69820d24
[INFO] checking rnice01/yt-dl-to-anki-rust against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frnice01%2Fyt-dl-to-anki-rust" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rnice01/yt-dl-to-anki-rust 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/rnice01/yt-dl-to-anki-rust
[INFO] finished tweaking git repo https://github.com/rnice01/yt-dl-to-anki-rust
[INFO] tweaked toml for git repo https://github.com/rnice01/yt-dl-to-anki-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/rnice01/yt-dl-to-anki-rust 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", 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] 51e5f1c840ede81fd53793684812d90b236e8e99ccd7d99de033b9b8ad2283a5
[INFO] running `Command { std: "docker" "start" "-a" "51e5f1c840ede81fd53793684812d90b236e8e99ccd7d99de033b9b8ad2283a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51e5f1c840ede81fd53793684812d90b236e8e99ccd7d99de033b9b8ad2283a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51e5f1c840ede81fd53793684812d90b236e8e99ccd7d99de033b9b8ad2283a5", kill_on_drop: false }`
[INFO] [stdout] 51e5f1c840ede81fd53793684812d90b236e8e99ccd7d99de033b9b8ad2283a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a20433f01a579b2fec11cb4b30a15f7bfed3a1173ebf9a789bfba7430e2946f4
[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" "a20433f01a579b2fec11cb4b30a15f7bfed3a1173ebf9a789bfba7430e2946f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking yt_subs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SubTrack`
[INFO] [stdout]  --> src/parser_test.rs:1:19
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::subs::{SubTrack};
[INFO] [stdout]   |                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Parser`, `VttParser`
[INFO] [stdout]  --> src/parser_test.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::parser::{Parser, VttParser};
[INFO] [stdout]   |                     ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/writer.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{prelude::*, BufWriter};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let args: Vec<String> = std::env::args().collect();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/writer.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let writer = BufWriter::new(file.unwrap());
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/writer.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |   fn write_to(&self, path: &str, subs: &Vec<SubTrack>) -> Result<(), WriterError> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]  --> src/writer.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{prelude::*, BufWriter};
[INFO] [stdout]   |               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]  --> src/main.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let args: Vec<String> = std::env::args().collect();
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `writer`
[INFO] [stdout]   --> src/writer.rs:28:9
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let writer = BufWriter::new(file.unwrap());
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_writer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subs`
[INFO] [stdout]   --> src/writer.rs:25:34
[INFO] [stdout]    |
[INFO] [stdout] 25 |   fn write_to(&self, path: &str, subs: &Vec<SubTrack>) -> Result<(), WriterError> {
[INFO] [stdout]    |                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_subs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.24s
[INFO] running `Command { std: "docker" "inspect" "a20433f01a579b2fec11cb4b30a15f7bfed3a1173ebf9a789bfba7430e2946f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a20433f01a579b2fec11cb4b30a15f7bfed3a1173ebf9a789bfba7430e2946f4", kill_on_drop: false }`
[INFO] [stdout] a20433f01a579b2fec11cb4b30a15f7bfed3a1173ebf9a789bfba7430e2946f4