[INFO] cloning repository https://github.com/theatlasroom/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theatlasroom/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheatlasroom%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheatlasroom%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7d4a390a3ace3085dbcc821e2fb7899f7a668a1c
[INFO] documenting theatlasroom/rust-learning against 1.61.0 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheatlasroom%2Frust-learning" "/workspace/builds/worker-26/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-26/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/theatlasroom/rust-learning on toolchain 1.61.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/theatlasroom/rust-learning
[INFO] finished tweaking git repo https://github.com/theatlasroom/rust-learning
[INFO] tweaked toml for git repo https://github.com/theatlasroom/rust-learning written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate git repo https://github.com/theatlasroom/rust-learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e62f1eca2b3256b3885488275c8f661362d24371974bfc7571f984f6c8e78eb
[INFO] running `Command { std: "docker" "start" "-a" "6e62f1eca2b3256b3885488275c8f661362d24371974bfc7571f984f6c8e78eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e62f1eca2b3256b3885488275c8f661362d24371974bfc7571f984f6c8e78eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e62f1eca2b3256b3885488275c8f661362d24371974bfc7571f984f6c8e78eb", kill_on_drop: false }`
[INFO] [stdout] 6e62f1eca2b3256b3885488275c8f661362d24371974bfc7571f984f6c8e78eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85a3b45e32e77d52f1f53e462e7ca1d7159cb7f33a956d7b859668b9d8b0cf80
[INFO] running `Command { std: "docker" "start" "-a" "85a3b45e32e77d52f1f53e462e7ca1d7159cb7f33a956d7b859668b9d8b0cf80", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking libc v0.2.20
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]  Documenting learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: format argument must be a string literal
[INFO] [stdout]  --> src/bin/primitives.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 |     println!('\u{0024}');
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a string literal to format with
[INFO] [stdout]   |
[INFO] [stdout] 3 |     println!("{}", '\u{0024}');
[INFO] [stdout]   |              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: format argument must be a string literal
[INFO] [stdout]  --> src/bin/primitives.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 |     println!('\u{00A5}');
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a string literal to format with
[INFO] [stdout]   |
[INFO] [stdout] 4 |     println!("{}", '\u{00A5}');
[INFO] [stdout]   |              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: format argument must be a string literal
[INFO] [stdout]  --> src/bin/primitives.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!('\u{26A1}');
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a string literal to format with
[INFO] [stdout]   |
[INFO] [stdout] 5 |     println!("{}", '\u{26A1}');
[INFO] [stdout]   |              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: format argument must be a string literal
[INFO] [stdout]  --> src/bin/primitives.rs:6:14
[INFO] [stdout]   |
[INFO] [stdout] 6 |     println!('\u{2600}');
[INFO] [stdout]   |              ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a string literal to format with
[INFO] [stdout]   |
[INFO] [stdout] 6 |     println!("{}", '\u{2600}');
[INFO] [stdout]   |              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: format argument must be a string literal
[INFO] [stdout]  --> src/bin/primitives.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     println!('\u{99}');
[INFO] [stdout]   |              ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a string literal to format with
[INFO] [stdout]   |
[INFO] [stdout] 7 |     println!("{}", '\u{99}');
[INFO] [stdout]   |              +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not document `learning`
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name primitives src/bin/primitives.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9191adeb45e61da3 -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-8a24922b9c483946.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not document `learning`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name text_in_file src/bin/text_in_file.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=a2fb33284cc62b1c -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-8a24922b9c483946.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name palindrome src/bin/palindrome.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=eae52f2e53cd4f1f -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-8a24922b9c483946.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name sandbox src/bin/sandbox.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=3857f23d26e48cae -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-8a24922b9c483946.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name elapsed_time src/bin/elapsed_time.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=54af12c06de9b821 -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-8a24922b9c483946.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] error: could not document `learning`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name matrix_math src/bin/matrix_math.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items -C metadata=9bf1bbdc4fec140b -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-8a24922b9c483946.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "85a3b45e32e77d52f1f53e462e7ca1d7159cb7f33a956d7b859668b9d8b0cf80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85a3b45e32e77d52f1f53e462e7ca1d7159cb7f33a956d7b859668b9d8b0cf80", kill_on_drop: false }`
[INFO] [stdout] 85a3b45e32e77d52f1f53e462e7ca1d7159cb7f33a956d7b859668b9d8b0cf80