[INFO] cloning repository https://github.com/akulguptax/Orderbook-Based-Mini-Exchange
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/akulguptax/Orderbook-Based-Mini-Exchange" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakulguptax%2FOrderbook-Based-Mini-Exchange", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakulguptax%2FOrderbook-Based-Mini-Exchange'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ae671e9bd254ddefe5419c295ce5199f72f7d34e
[INFO] documenting akulguptax/Orderbook-Based-Mini-Exchange against 1.75.0 for beta-1.76-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fakulguptax%2FOrderbook-Based-Mini-Exchange" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/akulguptax/Orderbook-Based-Mini-Exchange on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/akulguptax/Orderbook-Based-Mini-Exchange
[INFO] finished tweaking git repo https://github.com/akulguptax/Orderbook-Based-Mini-Exchange
[INFO] tweaked toml for git repo https://github.com/akulguptax/Orderbook-Based-Mini-Exchange written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/akulguptax/Orderbook-Based-Mini-Exchange already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ntest_timeout v0.7.5
[INFO] [stderr]   Downloaded ntest v0.7.5
[INFO] [stderr]   Downloaded ntest_proc_macro_helper v0.7.5
[INFO] [stderr]   Downloaded text_io v0.1.10
[INFO] [stderr]   Downloaded ntest_test_cases v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d30e13ab0f20c0a826acf5996783ac94a6d5fe25f7dcbf653d2b3ccfa3999c99
[INFO] running `Command { std: "docker" "start" "-a" "d30e13ab0f20c0a826acf5996783ac94a6d5fe25f7dcbf653d2b3ccfa3999c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d30e13ab0f20c0a826acf5996783ac94a6d5fe25f7dcbf653d2b3ccfa3999c99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d30e13ab0f20c0a826acf5996783ac94a6d5fe25f7dcbf653d2b3ccfa3999c99", kill_on_drop: false }`
[INFO] [stdout] d30e13ab0f20c0a826acf5996783ac94a6d5fe25f7dcbf653d2b3ccfa3999c99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6d5c6bf1b15f5e22e96d704e59d0762e0271e3307b3cd97ae964fdbd1cd31ca
[INFO] running `Command { std: "docker" "start" "-a" "b6d5c6bf1b15f5e22e96d704e59d0762e0271e3307b3cd97ae964fdbd1cd31ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling ntest_proc_macro_helper v0.7.5
[INFO] [stderr]     Checking text_io v0.1.10
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]     Checking getrandom v0.2.6
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling ntest_test_cases v0.7.5
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling ntest_timeout v0.7.5
[INFO] [stderr]     Checking ntest v0.7.5
[INFO] [stderr]     Checking serde v1.0.137
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]  Documenting group_05_project v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected identifier, found `:`
[INFO] [stdout]   --> src/client.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |         temp: u64 = read!("{}\n");
[INFO] [stdout]    |             ^ expected identifier
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to introduce a new binding
[INFO] [stdout]    |
[INFO] [stdout] 31 |         let temp: u64 = read!("{}\n");
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(linked_list_remove)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(type_ascription)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `group_05_project`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/1.75.0-x86_64-unknown-linux-gnu/bin/rustdoc --edition=2021 --crate-type bin --crate-name group_05_project src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=39ccf6549b5328cd -L dependency=/opt/rustwide/target/debug/deps --extern bincode=/opt/rustwide/target/debug/deps/libbincode-68efcef2f7169ba1.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-e7445b4e8703c20b.rmeta --extern ntest=/opt/rustwide/target/debug/deps/libntest-8afa7c089b68ec0d.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-465bb0cf2026fe8a.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-437f4f55b85ded71.rmeta --extern socket2=/opt/rustwide/target/debug/deps/libsocket2-7815774253630e6c.rmeta --extern text_io=/opt/rustwide/target/debug/deps/libtext_io-0a7ad64c2aaec216.rmeta --cap-lints=warn --crate-version 0.1.0` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "b6d5c6bf1b15f5e22e96d704e59d0762e0271e3307b3cd97ae964fdbd1cd31ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6d5c6bf1b15f5e22e96d704e59d0762e0271e3307b3cd97ae964fdbd1cd31ca", kill_on_drop: false }`
[INFO] [stdout] b6d5c6bf1b15f5e22e96d704e59d0762e0271e3307b3cd97ae964fdbd1cd31ca
