[INFO] cloning repository https://github.com/AymanHamdoun/top-reddits
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AymanHamdoun/top-reddits" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAymanHamdoun%2Ftop-reddits", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAymanHamdoun%2Ftop-reddits'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04002b676d47e33d4fae17cd1bf8bf6bf220b3a6
[INFO] checking AymanHamdoun/top-reddits against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAymanHamdoun%2Ftop-reddits" "/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/AymanHamdoun/top-reddits on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/AymanHamdoun/top-reddits
[INFO] finished tweaking git repo https://github.com/AymanHamdoun/top-reddits
[INFO] tweaked toml for git repo https://github.com/AymanHamdoun/top-reddits written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/AymanHamdoun/top-reddits 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded chunked_transfer v0.3.1
[INFO] [stderr]   Downloaded qstring v0.6.0
[INFO] [stderr]   Downloaded colour v0.6.0
[INFO] [stderr]   Downloaded openssl-sys v0.9.72
[INFO] [stderr]   Downloaded crossterm_winapi v0.7.0
[INFO] [stderr]   Downloaded pkg-config v0.3.24
[INFO] [stderr]   Downloaded ureq v0.4.9
[INFO] [stderr]   Downloaded crossterm v0.19.0
[INFO] [stderr]   Downloaded openssl v0.10.38
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 186e5e95b21acf6a048401aac330af931a636c894e80c039d266e7cfd2ccd18b
[INFO] running `Command { std: "docker" "start" "-a" "186e5e95b21acf6a048401aac330af931a636c894e80c039d266e7cfd2ccd18b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "186e5e95b21acf6a048401aac330af931a636c894e80c039d266e7cfd2ccd18b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "186e5e95b21acf6a048401aac330af931a636c894e80c039d266e7cfd2ccd18b", kill_on_drop: false }`
[INFO] [stdout] 186e5e95b21acf6a048401aac330af931a636c894e80c039d266e7cfd2ccd18b
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ba2e19ff4909e7890f9bf626b818d4b100fcfd4ee136e1b04af4a101cee8074
[INFO] running `Command { std: "docker" "start" "-a" "9ba2e19ff4909e7890f9bf626b818d4b100fcfd4ee136e1b04af4a101cee8074", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]     Checking smallvec v1.8.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]     Checking once_cell v1.9.0
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking tinyvec v1.5.1
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.6
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking qstring v0.6.0
[INFO] [stderr]     Checking ryu v1.0.9
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]     Checking cookie v0.11.4
[INFO] [stderr]     Checking signal-hook v0.1.17
[INFO] [stderr]     Checking crossterm v0.19.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking colour v0.6.0
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking ureq v0.4.9
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Result` and `json`
[INFO] [stdout]  --> src/reddit.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde_json::{Value, Result, json};
[INFO] [stdout]   |                         ^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/reddit.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let api_url = (self.subreddit_url.clone() + "/top/.json?limit=" + count.to_string().as_str());
[INFO] [stdout]    |                       ^                                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 -         let api_url = (self.subreddit_url.clone() + "/top/.json?limit=" + count.to_string().as_str());
[INFO] [stdout] 38 +         let api_url = self.subreddit_url.clone() + "/top/.json?limit=" + count.to_string().as_str();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/reddit.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let api_url = (self.subreddit_url.clone() + "/new/.json?limit=" + count.to_string().as_str());
[INFO] [stdout]    |                       ^                                                                             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -         let api_url = (self.subreddit_url.clone() + "/new/.json?limit=" + count.to_string().as_str());
[INFO] [stdout] 43 +         let api_url = self.subreddit_url.clone() + "/new/.json?limit=" + count.to_string().as_str();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Result` and `json`
[INFO] [stdout]  --> src/reddit.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde_json::{Value, Result, json};
[INFO] [stdout]   |                         ^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/reddit.rs:38:23
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let api_url = (self.subreddit_url.clone() + "/top/.json?limit=" + count.to_string().as_str());
[INFO] [stdout]    |                       ^                                                                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 38 -         let api_url = (self.subreddit_url.clone() + "/top/.json?limit=" + count.to_string().as_str());
[INFO] [stdout] 38 +         let api_url = self.subreddit_url.clone() + "/top/.json?limit=" + count.to_string().as_str();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> src/reddit.rs:43:23
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let api_url = (self.subreddit_url.clone() + "/new/.json?limit=" + count.to_string().as_str());
[INFO] [stdout]    |                       ^                                                                             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 43 -         let api_url = (self.subreddit_url.clone() + "/new/.json?limit=" + count.to_string().as_str());
[INFO] [stdout] 43 +         let api_url = self.subreddit_url.clone() + "/new/.json?limit=" + count.to_string().as_str();
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/reddit.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Err(e) => "".to_string()
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/reddit.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for (i, p) in post_v.iter().enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/reddit.rs:47:52
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn load_posts_from_url(&mut self, url: String, count: u32) {
[INFO] [stdout]    |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/reddit.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |             Err(e) => "".to_string()
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/reddit.rs:61:14
[INFO] [stdout]    |
[INFO] [stdout] 61 |         for (i, p) in post_v.iter().enumerate() {
[INFO] [stdout]    |              ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/reddit.rs:47:52
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn load_posts_from_url(&mut self, url: String, count: u32) {
[INFO] [stdout]    |                                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.11s
[INFO] running `Command { std: "docker" "inspect" "9ba2e19ff4909e7890f9bf626b818d4b100fcfd4ee136e1b04af4a101cee8074", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ba2e19ff4909e7890f9bf626b818d4b100fcfd4ee136e1b04af4a101cee8074", kill_on_drop: false }`
[INFO] [stdout] 9ba2e19ff4909e7890f9bf626b818d4b100fcfd4ee136e1b04af4a101cee8074
