[INFO] updating cached repository Prorok64b/web_crawler
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Prorok64b/web_crawler
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Prorok64b/web_crawler" "work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Prorok64b/web_crawler" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Prorok64b/web_crawler"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Prorok64b/web_crawler'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5285d3381a400a53b136ab989dae94435dadfb79
[INFO] sha for GitHub repo Prorok64b/web_crawler: 5285d3381a400a53b136ab989dae94435dadfb79
[INFO] validating manifest of Prorok64b/web_crawler on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Prorok64b/web_crawler on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Prorok64b/web_crawler
[INFO] removed path dependency select from Prorok64b/web_crawler
[INFO] finished frobbing Prorok64b/web_crawler
[INFO] frobbed toml for Prorok64b/web_crawler written to work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler/Cargo.toml
[INFO] started frobbing Prorok64b/web_crawler
[INFO] removed path dependency select from Prorok64b/web_crawler
[INFO] finished frobbing Prorok64b/web_crawler
[INFO] frobbed toml for Prorok64b/web_crawler written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Prorok64b/web_crawler/Cargo.toml
[INFO] crate Prorok64b/web_crawler already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing Prorok64b/web_crawler against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 2569521740c1075562d7b7e9c9dd7a34ea9360d48b749332d23e15f8218f31fa
[INFO] running `"docker" "start" "-a" "2569521740c1075562d7b7e9c9dd7a34ea9360d48b749332d23e15f8218f31fa"`
[INFO] [stderr] warning: dependency (select) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling uuid v0.2.3
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling snap v0.1.2
[INFO] [stderr]    Compiling lz4-compress v0.1.1
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling selectors v0.20.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling cdrs v0.4.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.15
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling hyper v0.12.33
[INFO] [stderr]    Compiling cssparser v0.24.1
[INFO] [stderr]    Compiling hyper-tls v0.3.2
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling html5ever v0.22.5
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr] warning[E0506]: cannot assign to `self.input.cached_token` because it is borrowed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.24.1/src/parser.rs:572:17
[INFO] [stderr]     |
[INFO] [stderr] 547 |     pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> {
[INFO] [stderr]     |                                                   - let's call the lifetime of this reference `'1`
[INFO] [stderr] ...
[INFO] [stderr] 560 |             Some(ref cached_token)
[INFO] [stderr]     |                  ---------------- borrow of `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 572 |                 self.input.cached_token = Some(CachedToken {
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 584 |         Ok(token)
[INFO] [stderr]     |         --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling serde_json v1.0.40
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_urlencoded v0.5.5
[INFO] [stderr]    Compiling markup5ever v0.7.5
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]    Compiling cookie_store v0.7.0
[INFO] [stderr]    Compiling reqwest v0.9.20
[INFO] [stderr]    Compiling scraper v0.9.2
[INFO] [stderr]    Compiling select v0.4.3
[INFO] [stderr]    Compiling web_crawler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Error`
[INFO] [stderr]  --> src/configs.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     use std::io::Error;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `YamlEmitter`
[INFO] [stderr]  --> src/configs.rs:4:34
[INFO] [stderr]   |
[INFO] [stderr] 4 |     use yaml_rust::{ YamlLoader, YamlEmitter };
[INFO] [stderr]   |                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Credentials`
[INFO] [stderr]  --> src/configs.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 |     use cdrs::client::{CDRS, Credentials, Session};
[INFO] [stderr]   |                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PasswordAuthenticator`
[INFO] [stderr]  --> src/configs.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     use cdrs::authenticators::{Authenticator, PasswordAuthenticator};
[INFO] [stderr]   |                                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CDRS`, `Credentials`, `Session`
[INFO] [stderr]   --> src/main.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 | use cdrs::client::{ Credentials, Session, CDRS };
[INFO] [stderr]    |                     ^^^^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cdrs::compression::Compression`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use cdrs::compression::Compression;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cdrs::error as cdrs_error`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use cdrs::error as cdrs_error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut authenticator:PasswordAuthenticator = PasswordAuthenticator::new(username.as_str(), password.as_str());
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_body`
[INFO] [stderr]   --> src/main.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn get_body(link: &str) -> Result<String, reqwest::Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_links`
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn get_links(link: &str) -> Vec<String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 38s
[INFO] running `"docker" "inspect" "2569521740c1075562d7b7e9c9dd7a34ea9360d48b749332d23e15f8218f31fa"`
[INFO] running `"docker" "rm" "-f" "2569521740c1075562d7b7e9c9dd7a34ea9360d48b749332d23e15f8218f31fa"`
[INFO] [stdout] 2569521740c1075562d7b7e9c9dd7a34ea9360d48b749332d23e15f8218f31fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 3127e0880455d500a6b8b99dfbc873eccf2e3c6c3d0cf3175932460e900a885b
[INFO] running `"docker" "start" "-a" "3127e0880455d500a6b8b99dfbc873eccf2e3c6c3d0cf3175932460e900a885b"`
[INFO] [stderr] warning: dependency (select) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]    Compiling web_crawler v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::io::Error`
[INFO] [stderr]  --> src/configs.rs:2:9
[INFO] [stderr]   |
[INFO] [stderr] 2 |     use std::io::Error;
[INFO] [stderr]   |         ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `YamlEmitter`
[INFO] [stderr]  --> src/configs.rs:4:34
[INFO] [stderr]   |
[INFO] [stderr] 4 |     use yaml_rust::{ YamlLoader, YamlEmitter };
[INFO] [stderr]   |                                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Credentials`
[INFO] [stderr]  --> src/configs.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 |     use cdrs::client::{CDRS, Credentials, Session};
[INFO] [stderr]   |                              ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `PasswordAuthenticator`
[INFO] [stderr]  --> src/configs.rs:8:47
[INFO] [stderr]   |
[INFO] [stderr] 8 |     use cdrs::authenticators::{Authenticator, PasswordAuthenticator};
[INFO] [stderr]   |                                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `CDRS`, `Credentials`, `Session`
[INFO] [stderr]   --> src/main.rs:14:21
[INFO] [stderr]    |
[INFO] [stderr] 14 | use cdrs::client::{ Credentials, Session, CDRS };
[INFO] [stderr]    |                     ^^^^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cdrs::compression::Compression`
[INFO] [stderr]   --> src/main.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | use cdrs::compression::Compression;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `cdrs::error as cdrs_error`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use cdrs::error as cdrs_error;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |     let mut authenticator:PasswordAuthenticator = PasswordAuthenticator::new(username.as_str(), password.as_str());
[INFO] [stderr]    |         ----^^^^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_body`
[INFO] [stderr]   --> src/main.rs:60:1
[INFO] [stderr]    |
[INFO] [stderr] 60 | fn get_body(link: &str) -> Result<String, reqwest::Error> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_links`
[INFO] [stderr]   --> src/main.rs:67:1
[INFO] [stderr]    |
[INFO] [stderr] 67 | fn get_links(link: &str) -> Vec<String> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.47s
[INFO] running `"docker" "inspect" "3127e0880455d500a6b8b99dfbc873eccf2e3c6c3d0cf3175932460e900a885b"`
[INFO] running `"docker" "rm" "-f" "3127e0880455d500a6b8b99dfbc873eccf2e3c6c3d0cf3175932460e900a885b"`
[INFO] [stdout] 3127e0880455d500a6b8b99dfbc873eccf2e3c6c3d0cf3175932460e900a885b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/Prorok64b/web_crawler:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 9ab68363e557620af6a616ecb0d13c1b8f1aed2c32272673d20a63669baa9c8d
[INFO] running `"docker" "start" "-a" "9ab68363e557620af6a616ecb0d13c1b8f1aed2c32272673d20a63669baa9c8d"`
[INFO] [stderr] warning: dependency (select) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/web_crawler-bb772902e1a067cb
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "9ab68363e557620af6a616ecb0d13c1b8f1aed2c32272673d20a63669baa9c8d"`
[INFO] running `"docker" "rm" "-f" "9ab68363e557620af6a616ecb0d13c1b8f1aed2c32272673d20a63669baa9c8d"`
[INFO] [stdout] 9ab68363e557620af6a616ecb0d13c1b8f1aed2c32272673d20a63669baa9c8d