[INFO] cloning repository https://github.com/feadoor/projecteuler-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/feadoor/projecteuler-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeadoor%2Fprojecteuler-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeadoor%2Fprojecteuler-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 483b93800c46dde820c057b6628aa3284acbd7bf
[INFO] documenting feadoor/projecteuler-rs against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffeadoor%2Fprojecteuler-rs" "/workspace/builds/worker-77/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-77/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/feadoor/projecteuler-rs on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/feadoor/projecteuler-rs
[INFO] finished tweaking git repo https://github.com/feadoor/projecteuler-rs
[INFO] tweaked toml for git repo https://github.com/feadoor/projecteuler-rs written to /workspace/builds/worker-77/source/Cargo.toml
[INFO] crate git repo https://github.com/feadoor/projecteuler-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e30b3e9c80eb32a9bfb33ab1e6404624ed3afee2dcf486de68ece54f8f5bce9a
[INFO] running `Command { std: "docker" "start" "-a" "e30b3e9c80eb32a9bfb33ab1e6404624ed3afee2dcf486de68ece54f8f5bce9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e30b3e9c80eb32a9bfb33ab1e6404624ed3afee2dcf486de68ece54f8f5bce9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e30b3e9c80eb32a9bfb33ab1e6404624ed3afee2dcf486de68ece54f8f5bce9a", kill_on_drop: false }`
[INFO] [stdout] e30b3e9c80eb32a9bfb33ab1e6404624ed3afee2dcf486de68ece54f8f5bce9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-77/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ab7c016d50939410cca5f8c71bd842be8afbc429cd5fd2d6e52c95b80f3e795
[INFO] running `Command { std: "docker" "start" "-a" "0ab7c016d50939410cca5f8c71bd842be8afbc429cd5fd2d6e52c95b80f3e795", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking numeric_traits v0.1.0 (/opt/rustwide/workdir/libs/numeric_traits)
[INFO] [stderr]     Checking ordermap v0.3.5
[INFO] [stderr]     Checking search v0.1.0 (/opt/rustwide/workdir/libs/search)
[INFO] [stderr]     Checking fixedbitset v0.1.9
[INFO] [stderr]     Checking interleave v1.0.1
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking combinatorics v0.1.0 (/opt/rustwide/workdir/libs/combinatorics)
[INFO] [stderr]     Checking modular_arithmetic v0.1.0 (/opt/rustwide/workdir/libs/modular_arithmetic)
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking petgraph v0.4.13
[INFO] [stderr]     Checking number_theory v0.1.0 (/opt/rustwide/workdir/libs/number_theory)
[INFO] [stderr]     Checking primesieve v0.2.0 (/opt/rustwide/workdir/libs/primesieve)
[INFO] [stderr]     Checking mertens_recurrence v0.1.0 (/opt/rustwide/workdir/libs/mertens_recurrence)
[INFO] [stdout] warning: variable `N` should have a snake case name
[INFO] [stdout]   --> libs/mertens_recurrence/src/lib.rs:45:38
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn calculate_value_at(&self, N: u64) -> i64 {
[INFO] [stdout]    |                                      ^ help: convert the identifier to snake case: `n`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `K` should have a snake case name
[INFO] [stdout]   --> libs/mertens_recurrence/src/lib.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let K = integer_sqrt(N);
[INFO] [stdout]    |             ^ help: convert the identifier to snake case (notice the capitalization): `k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `M` should have a snake case name
[INFO] [stdout]   --> libs/mertens_recurrence/src/lib.rs:49:13
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let M = N / K;
[INFO] [stdout]    |             ^ help: convert the identifier to snake case: `m`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_on`
[INFO] [stdout]    --> libs/primesieve/src/segment.rs:107:8
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn set_on(segment: &mut [u64], idx: u64) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking continued_fractions v0.1.0 (/opt/rustwide/workdir/libs/continued_fractions)
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> libs/continued_fractions/src/lib.rs:180:17
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 replace(&mut self.numers.0, replace(&mut self.numers.1, next_numer.clone()));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]    --> libs/continued_fractions/src/lib.rs:181:17
[INFO] [stdout]     |
[INFO] [stdout] 181 |                 replace(&mut self.denoms.0, replace(&mut self.denoms.1, next_denom.clone()));
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking projecteuler-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting projecteuler-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not document `projecteuler-rs`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name problem052 src/bin/problem052.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-fd7abddf7181542f.rmeta --extern combinatorics=/opt/rustwide/target/debug/deps/libcombinatorics-29a27c4e392b44f8.rmeta --extern continued_fractions=/opt/rustwide/target/debug/deps/libcontinued_fractions-9b3562350ef3634f.rmeta --extern interleave=/opt/rustwide/target/debug/deps/libinterleave-605d7d23782791fd.rmeta --extern itertools=/opt/rustwide/target/debug/deps/libitertools-8965a3d9bbcd50d2.rmeta --extern mertens_recurrence=/opt/rustwide/target/debug/deps/libmertens_recurrence-6c9a635f51654331.rmeta --extern modular_arithmetic=/opt/rustwide/target/debug/deps/libmodular_arithmetic-f12b94d80d6e7d83.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-6e6fb5099267a212.rmeta --extern number_theory=/opt/rustwide/target/debug/deps/libnumber_theory-362518642544d25f.rmeta --extern permutohedron=/opt/rustwide/target/debug/deps/libpermutohedron-48138127f651de89.rmeta --extern petgraph=/opt/rustwide/target/debug/deps/libpetgraph-f6826ac868c13607.rmeta --extern primesieve=/opt/rustwide/target/debug/deps/libprimesieve-cafce2d027617ab1.rmeta --extern projecteuler_rs=/opt/rustwide/target/debug/deps/libprojecteuler_rs-751acb3496d3d055.rmeta --extern rand=/opt/rustwide/target/debug/deps/librand-e0528d8c2c2f6722.rmeta --extern search=/opt/rustwide/target/debug/deps/libsearch-9b56316f8cede2e4.rmeta --cap-lints=warn --crate-version 0.1.0` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/interleave-1.0.1/src/lib.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 |         );*
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/interleave-1.0.1/src/lib.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 |         );*
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0ab7c016d50939410cca5f8c71bd842be8afbc429cd5fd2d6e52c95b80f3e795", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab7c016d50939410cca5f8c71bd842be8afbc429cd5fd2d6e52c95b80f3e795", kill_on_drop: false }`
[INFO] [stdout] 0ab7c016d50939410cca5f8c71bd842be8afbc429cd5fd2d6e52c95b80f3e795
