[INFO] updating cached repository https://github.com/VladimirMarkelov/dsldoc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8799fd749d679cf870fb1677c8be22c868dc876f
[INFO] checking VladimirMarkelov/dsldoc/8799fd749d679cf870fb1677c8be22c868dc876f against try#9b06ec641f3d05c126a54ceadba42a64366f72b4 for pr-95755
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVladimirMarkelov%2Fdsldoc" "/workspace/builds/worker-50/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-50/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VladimirMarkelov/dsldoc on toolchain 9b06ec641f3d05c126a54ceadba42a64366f72b4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VladimirMarkelov/dsldoc
[INFO] finished tweaking git repo https://github.com/VladimirMarkelov/dsldoc
[INFO] tweaked toml for git repo https://github.com/VladimirMarkelov/dsldoc written to /workspace/builds/worker-50/source/Cargo.toml
[INFO] crate git repo https://github.com/VladimirMarkelov/dsldoc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76ec05a7dea7b758437f9a96b6c61dc42d6787cb6bb5718943ea3ee5d0bfecf5
[INFO] running `Command { std: "docker" "start" "-a" "76ec05a7dea7b758437f9a96b6c61dc42d6787cb6bb5718943ea3ee5d0bfecf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76ec05a7dea7b758437f9a96b6c61dc42d6787cb6bb5718943ea3ee5d0bfecf5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ec05a7dea7b758437f9a96b6c61dc42d6787cb6bb5718943ea3ee5d0bfecf5", kill_on_drop: false }`
[INFO] [stdout] 76ec05a7dea7b758437f9a96b6c61dc42d6787cb6bb5718943ea3ee5d0bfecf5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-50/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+9b06ec641f3d05c126a54ceadba42a64366f72b4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 153a2f1ef1a633f2ca48281737b744b200c2d8dfcc639ec133fb9f61b3f766d1
[INFO] running `Command { std: "docker" "start" "-a" "153a2f1ef1a633f2ca48281737b744b200c2d8dfcc639ec133fb9f61b3f766d1", kill_on_drop: false }`
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking dsldoc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, BufRead, Cursor, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]  --> src/main.rs:5:15
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, BufRead, Cursor, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `infile`
[INFO] [stdout]    --> src/main.rs:334:14
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn sort_file(infile: &str, outfile: &str) {
[INFO] [stdout]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_infile`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outfile`
[INFO] [stdout]    --> src/main.rs:334:28
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn sort_file(infile: &str, outfile: &str) {
[INFO] [stdout]     |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `infile`
[INFO] [stdout]    --> src/main.rs:334:14
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn sort_file(infile: &str, outfile: &str) {
[INFO] [stdout]     |              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_infile`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `outfile`
[INFO] [stdout]    --> src/main.rs:334:28
[INFO] [stdout]     |
[INFO] [stdout] 334 | fn sort_file(infile: &str, outfile: &str) {
[INFO] [stdout]     |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_outfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `roman_to_u8`
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn roman_to_u8(s: &str) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `roman_to_u8`
[INFO] [stdout]   --> src/main.rs:55:4
[INFO] [stdout]    |
[INFO] [stdout] 55 | fn roman_to_u8(s: &str) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "153a2f1ef1a633f2ca48281737b744b200c2d8dfcc639ec133fb9f61b3f766d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "153a2f1ef1a633f2ca48281737b744b200c2d8dfcc639ec133fb9f61b3f766d1", kill_on_drop: false }`
[INFO] [stdout] 153a2f1ef1a633f2ca48281737b744b200c2d8dfcc639ec133fb9f61b3f766d1