[INFO] updating cached repository https://github.com/mpdrescher/latex-preprocessor
[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] 36a31eea87ed73b30434a1526a5f39ddf41f47e7
[INFO] testing mpdrescher/latex-preprocessor/36a31eea87ed73b30434a1526a5f39ddf41f47e7 against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpdrescher%2Flatex-preprocessor" "/workspace/builds/worker-33/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-33/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mpdrescher/latex-preprocessor on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mpdrescher/latex-preprocessor
[INFO] finished tweaking git repo https://github.com/mpdrescher/latex-preprocessor
[INFO] tweaked toml for git repo https://github.com/mpdrescher/latex-preprocessor written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate git repo https://github.com/mpdrescher/latex-preprocessor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--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-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f4501c4387825dc297d74ac6b45d996f7f065c68c3b4159a104ce1bbb882929
[INFO] running `Command { std: "docker" "start" "-a" "0f4501c4387825dc297d74ac6b45d996f7f065c68c3b4159a104ce1bbb882929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f4501c4387825dc297d74ac6b45d996f7f065c68c3b4159a104ce1bbb882929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f4501c4387825dc297d74ac6b45d996f7f065c68c3b4159a104ce1bbb882929", kill_on_drop: false }`
[INFO] [stdout] 0f4501c4387825dc297d74ac6b45d996f7f065c68c3b4159a104ce1bbb882929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 536ef87e368151a128cc404e5d17a897554336f725562de39d42d8098a411601
[INFO] running `Command { std: "docker" "start" "-a" "536ef87e368151a128cc404e5d17a897554336f725562de39d42d8098a411601", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling latex-preprocessor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:181:44
[INFO] [stdout]     |
[INFO] [stdout] 181 |     string.into_iter().fold(String::new(), (|mut acc, x| {
[INFO] [stdout]     |                                            ^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     }))
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 181 ~     string.into_iter().fold(String::new(), |mut acc, x| {
[INFO] [stdout] 182 |         acc.push_str(prefix);
[INFO] [stdout] 183 |         acc.push_str(&x);
[INFO] [stdout] 184 |         acc.push_str(suffix); 
[INFO] [stdout] 185 |         acc
[INFO] [stdout] 186 ~     })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.84s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "536ef87e368151a128cc404e5d17a897554336f725562de39d42d8098a411601", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536ef87e368151a128cc404e5d17a897554336f725562de39d42d8098a411601", kill_on_drop: false }`
[INFO] [stdout] 536ef87e368151a128cc404e5d17a897554336f725562de39d42d8098a411601
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21b1ce6ea3d8758d05dcaa367b3d8d2da306b023c4024c8b1c2d6fae50ab16a2
[INFO] running `Command { std: "docker" "start" "-a" "21b1ce6ea3d8758d05dcaa367b3d8d2da306b023c4024c8b1c2d6fae50ab16a2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling latex-preprocessor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]    --> src/main.rs:181:44
[INFO] [stdout]     |
[INFO] [stdout] 181 |     string.into_iter().fold(String::new(), (|mut acc, x| {
[INFO] [stdout]     |                                            ^
[INFO] [stdout] ...
[INFO] [stdout] 186 |     }))
[INFO] [stdout]     |      ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 181 ~     string.into_iter().fold(String::new(), |mut acc, x| {
[INFO] [stdout] 182 |         acc.push_str(prefix);
[INFO] [stdout] 183 |         acc.push_str(&x);
[INFO] [stdout] 184 |         acc.push_str(suffix); 
[INFO] [stdout] 185 |         acc
[INFO] [stdout] 186 ~     })
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.95s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/latex_preprocessor-e2676cf76d76a3a7)
[INFO] running `Command { std: "docker" "inspect" "21b1ce6ea3d8758d05dcaa367b3d8d2da306b023c4024c8b1c2d6fae50ab16a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21b1ce6ea3d8758d05dcaa367b3d8d2da306b023c4024c8b1c2d6fae50ab16a2", kill_on_drop: false }`
[INFO] [stdout] 21b1ce6ea3d8758d05dcaa367b3d8d2da306b023c4024c8b1c2d6fae50ab16a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5eef75c66ba9e0f4b7d47d885ae358ec61f051d590b94b76fb99783f584c9b58
[INFO] running `Command { std: "docker" "start" "-a" "5eef75c66ba9e0f4b7d47d885ae358ec61f051d590b94b76fb99783f584c9b58", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/main.rs:181:44
[INFO] [stderr]     |
[INFO] [stderr] 181 |     string.into_iter().fold(String::new(), (|mut acc, x| {
[INFO] [stderr]     |                                            ^
[INFO] [stderr] ...
[INFO] [stderr] 186 |     }))
[INFO] [stderr]     |      ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 181 ~     string.into_iter().fold(String::new(), |mut acc, x| {
[INFO] [stderr] 182 |         acc.push_str(prefix);
[INFO] [stderr] 183 |         acc.push_str(&x);
[INFO] [stderr] 184 |         acc.push_str(suffix); 
[INFO] [stderr] 185 |         acc
[INFO] [stderr] 186 ~     })
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `latex-preprocessor` (bin "latex-preprocessor" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/latex_preprocessor-e2676cf76d76a3a7)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5eef75c66ba9e0f4b7d47d885ae358ec61f051d590b94b76fb99783f584c9b58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eef75c66ba9e0f4b7d47d885ae358ec61f051d590b94b76fb99783f584c9b58", kill_on_drop: false }`
[INFO] [stdout] 5eef75c66ba9e0f4b7d47d885ae358ec61f051d590b94b76fb99783f584c9b58