[INFO] cloning repository https://github.com/DarrenRJ/Euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DarrenRJ/Euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDarrenRJ%2FEuler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0a4561ac291899ec025d0ab9f95dbc2dd7a2bbf
[INFO] documenting DarrenRJ/Euler 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%2FDarrenRJ%2FEuler" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DarrenRJ/Euler 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] started tweaking git repo https://github.com/DarrenRJ/Euler
[INFO] finished tweaking git repo https://github.com/DarrenRJ/Euler
[INFO] tweaked toml for git repo https://github.com/DarrenRJ/Euler written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DarrenRJ/Euler 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 hamming v0.1.3
[INFO] [stderr]   Downloaded time v0.1.38
[INFO] [stderr]   Downloaded num-rational v0.1.39
[INFO] [stderr]   Downloaded fuchsia-zircon-sys v0.2.0
[INFO] [stderr]   Downloaded fuchsia-zircon v0.2.1
[INFO] [stderr]   Downloaded primal-estimate v0.2.1
[INFO] [stderr]   Downloaded num v0.1.40
[INFO] [stderr]   Downloaded num-bigint v0.1.40
[INFO] [stderr]   Downloaded primal-bit v0.2.4
[INFO] [stderr]   Downloaded num-traits v0.1.40
[INFO] [stderr]   Downloaded primal v0.2.3
[INFO] [stderr]   Downloaded smallvec v0.4.4
[INFO] [stderr]   Downloaded redox_syscall v0.1.31
[INFO] [stderr]   Downloaded libc v0.2.33
[INFO] [stderr]   Downloaded num-complex v0.1.40
[INFO] [stderr]   Downloaded rand v0.3.17
[INFO] [stderr]   Downloaded primal-check v0.2.2
[INFO] [stderr]   Downloaded primal-sieve v0.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] dee62d28b1535a035d48480c1c5da330455029de8e420be68467a6e7300d8260
[INFO] running `Command { std: "docker" "start" "-a" "dee62d28b1535a035d48480c1c5da330455029de8e420be68467a6e7300d8260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dee62d28b1535a035d48480c1c5da330455029de8e420be68467a6e7300d8260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dee62d28b1535a035d48480c1c5da330455029de8e420be68467a6e7300d8260", kill_on_drop: false }`
[INFO] [stdout] dee62d28b1535a035d48480c1c5da330455029de8e420be68467a6e7300d8260
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8c0ab3ed75d6ca58a83eb0c297cf00f2463688c2f2f4abb387fe9a85f856846a
[INFO] running `Command { std: "docker" "start" "-a" "8c0ab3ed75d6ca58a83eb0c297cf00f2463688c2f2f4abb387fe9a85f856846a", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.40
[INFO] [stderr]     Checking libc v0.2.33
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking smallvec v0.4.4
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking primal-sieve v0.2.7
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]     Checking num-integer v0.1.35
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]     Checking num-bigint v0.1.40
[INFO] [stderr]     Checking num-complex v0.1.40
[INFO] [stderr]     Checking num-rational v0.1.39
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking primal-check v0.2.2
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]  Documenting euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/util.rs:238:64
[INFO] [stdout]     |
[INFO] [stdout] 238 |         if let Ok(index) = d_factors.binary_search(&(n_factors[(n_factors.len() - (i + 1))])) {
[INFO] [stdout]     |                                                                ^                         ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 238 -         if let Ok(index) = d_factors.binary_search(&(n_factors[(n_factors.len() - (i + 1))])) {
[INFO] [stdout] 238 +         if let Ok(index) = d_factors.binary_search(&(n_factors[n_factors.len() - (i + 1)])) {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.94s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]    Generated /opt/rustwide/target/doc/euler/index.html
[INFO] running `Command { std: "docker" "inspect" "8c0ab3ed75d6ca58a83eb0c297cf00f2463688c2f2f4abb387fe9a85f856846a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c0ab3ed75d6ca58a83eb0c297cf00f2463688c2f2f4abb387fe9a85f856846a", kill_on_drop: false }`
[INFO] [stdout] 8c0ab3ed75d6ca58a83eb0c297cf00f2463688c2f2f4abb387fe9a85f856846a