[INFO] cloning repository https://github.com/Ryneqq/symbolic_approximation
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ryneqq/symbolic_approximation" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyneqq%2Fsymbolic_approximation", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyneqq%2Fsymbolic_approximation'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06cd606dc5c5f05deffa88d43d4ede7e2e3948e4
[INFO] documenting Ryneqq/symbolic_approximation against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRyneqq%2Fsymbolic_approximation" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ryneqq/symbolic_approximation on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ryneqq/symbolic_approximation
[INFO] finished tweaking git repo https://github.com/Ryneqq/symbolic_approximation
[INFO] tweaked toml for git repo https://github.com/Ryneqq/symbolic_approximation written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Ryneqq/symbolic_approximation already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ea722e9e3a5a0d303a829f9866bcfd9d3a44a587153f6a779dd55b0f1c5dbeb
[INFO] running `Command { std: "docker" "start" "-a" "8ea722e9e3a5a0d303a829f9866bcfd9d3a44a587153f6a779dd55b0f1c5dbeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ea722e9e3a5a0d303a829f9866bcfd9d3a44a587153f6a779dd55b0f1c5dbeb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ea722e9e3a5a0d303a829f9866bcfd9d3a44a587153f6a779dd55b0f1c5dbeb", kill_on_drop: false }`
[INFO] [stdout] 8ea722e9e3a5a0d303a829f9866bcfd9d3a44a587153f6a779dd55b0f1c5dbeb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0f5036119043fc287d9427a042c119f2a180cec67ef98328a2508313d14cf00
[INFO] running `Command { std: "docker" "start" "-a" "a0f5036119043fc287d9427a042c119f2a180cec67ef98328a2508313d14cf00", 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] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling libc v0.2.123
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking prime_store v0.1.0 (/opt/rustwide/workdir/crates/prime_store)
[INFO] [stderr]  Documenting prime_store v0.1.0 (/opt/rustwide/workdir/crates/prime_store)
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> crates/prime_store/src/primes.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> crates/prime_store/src/primes.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `primes`
[INFO] [stdout]   --> crates/prime_store/src/primes.rs:71:5
[INFO] [stdout]    |
[INFO] [stdout] 71 |     primes: Vec<bool>
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PrimeStore` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> crates/prime_store/src/primes.rs:69:10
[INFO] [stdout]    |
[INFO] [stdout] 69 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> crates/prime_store/src/primes.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn new(n: usize) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_prime`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn is_prime(&self, number: f64) -> bool {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_number`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:125:8
[INFO] [stdout]     |
[INFO] [stdout] 125 |     fn into_number(idx: usize) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prime`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:129:8
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn prime(idx: usize) -> f64 {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `idx`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:133:8
[INFO] [stdout]     |
[INFO] [stdout] 133 |     fn idx(prime: f64) -> usize {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `iter_primes`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 |     fn iter_primes<'a>(&'a self) -> impl DoubleEndedIterator<Item = usize> + 'a {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next_prime`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:168:8
[INFO] [stdout]     |
[INFO] [stdout] 168 |     fn next_prime(&self, x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `previous_prime`
[INFO] [stdout]    --> crates/prime_store/src/primes.rs:191:8
[INFO] [stdout]     |
[INFO] [stdout] 191 |     fn previous_prime(&self, x: f64) -> f64 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling variant_count v1.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.3
[INFO] [stderr]    Compiling num_enum_derive v0.5.7
[INFO] [stderr]     Checking num_enum v0.5.7
[INFO] [stderr]     Checking symbols v0.1.0 (/opt/rustwide/workdir/crates/symbols)
[INFO] [stderr]  Documenting symbols v0.1.0 (/opt/rustwide/workdir/crates/symbols)
[INFO] [stdout] warning: unused variable: `operator`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:67:28
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let extract_fun = |operator: &str| {}; // this is not the best way i have to match function to the sign
[INFO] [stdout]    |                            ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_operator`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `equation`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:61:20
[INFO] [stdout]    |
[INFO] [stdout] 61 |         let (vars, equation) = (
[INFO] [stdout]    |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_equation`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vars`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let vars = vars[1..vars.len()].split(",").map(|var| var.trim());
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_vars`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `extract_fun`
[INFO] [stdout]   --> crates/symbols/src/fun.rs:67:13
[INFO] [stdout]    |
[INFO] [stdout] 67 |         let extract_fun = |operator: &str| {}; // this is not the best way i have to match function to the sign
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_extract_fun`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> crates/symbols/src/sequence.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(len: usize, f: F) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sequence`
[INFO] [stdout]   --> crates/symbols/src/sequence.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 | pub fn sequence(len: usize) -> impl Iterator<Item = f64> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `random`
[INFO] [stdout]   --> crates/symbols/src/sequence.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn random(mut len: usize) -> impl FnMut() -> f64 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting bin v0.1.0 (/opt/rustwide/workdir/crates/bin)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.89s
[INFO] running `Command { std: "docker" "inspect" "a0f5036119043fc287d9427a042c119f2a180cec67ef98328a2508313d14cf00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0f5036119043fc287d9427a042c119f2a180cec67ef98328a2508313d14cf00", kill_on_drop: false }`
[INFO] [stdout] a0f5036119043fc287d9427a042c119f2a180cec67ef98328a2508313d14cf00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] e36d3cdc59b22f30fd447de7c944264a66a4572d784962e3a3747c197fda761e
[INFO] running `Command { std: "docker" "start" "-a" "e36d3cdc59b22f30fd447de7c944264a66a4572d784962e3a3747c197fda761e", kill_on_drop: false }`
[INFO] [stderr] error: manifest path `/opt/rustwide/workdir/Cargo.toml` is a virtual manifest, but this command requires running against an actual package in this workspace
[INFO] running `Command { std: "docker" "inspect" "e36d3cdc59b22f30fd447de7c944264a66a4572d784962e3a3747c197fda761e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e36d3cdc59b22f30fd447de7c944264a66a4572d784962e3a3747c197fda761e", kill_on_drop: false }`
[INFO] [stdout] e36d3cdc59b22f30fd447de7c944264a66a4572d784962e3a3747c197fda761e