[INFO] cloning repository https://github.com/MarcelOwO/MutualGraph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MarcelOwO/MutualGraph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcelOwO%2FMutualGraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcelOwO%2FMutualGraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e137cb8873b39ecb9f8d5b56ede20e0ec7b6622a
[INFO] checking MarcelOwO/MutualGraph/e137cb8873b39ecb9f8d5b56ede20e0ec7b6622a against master#eeb94be79adc9df7a09ad0b2421f16e60e6d932c for pr-152971
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMarcelOwO%2FMutualGraph" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MarcelOwO/MutualGraph
[INFO] finished tweaking git repo https://github.com/MarcelOwO/MutualGraph
[INFO] tweaked toml for git repo https://github.com/MarcelOwO/MutualGraph written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MarcelOwO/MutualGraph on toolchain eeb94be79adc9df7a09ad0b2421f16e60e6d932c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MarcelOwO/MutualGraph 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" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] b7fed3f7d9fe0e6652a1d472bc42321c1d574589d70036fb270d490aef331165
[INFO] running `Command { std: "docker" "start" "-a" "b7fed3f7d9fe0e6652a1d472bc42321c1d574589d70036fb270d490aef331165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7fed3f7d9fe0e6652a1d472bc42321c1d574589d70036fb270d490aef331165", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7fed3f7d9fe0e6652a1d472bc42321c1d574589d70036fb270d490aef331165", kill_on_drop: false }`
[INFO] [stdout] b7fed3f7d9fe0e6652a1d472bc42321c1d574589d70036fb270d490aef331165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+eeb94be79adc9df7a09ad0b2421f16e60e6d932c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d334e0289862f5db472e8169cd30070934e844abd86073767e8dca0d5949a51e
[INFO] running `Command { std: "docker" "start" "-a" "d334e0289862f5db472e8169cd30070934e844abd86073767e8dca0d5949a51e", kill_on_drop: false }`
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[INFO] [stderr]    Compiling cc v1.2.47
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[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::mpsc, thread};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::Error`
[INFO] [stdout]  --> src/api/custom.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize, de::Error};
[INFO] [stdout]   |                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/api/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]  --> src/main.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{sync::mpsc, thread};
[INFO] [stdout]   |                       ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `de::Error`
[INFO] [stdout]  --> src/api/custom.rs:1:37
[INFO] [stdout]   |
[INFO] [stdout] 1 | use serde::{Deserialize, Serialize, de::Error};
[INFO] [stdout]   |                                     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write` and `self`
[INFO] [stdout]  --> src/api/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{self, Write};
[INFO] [stdout]   |               ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/api/functions.rs:126:16
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Ok(result) => {
[INFO] [stdout]     |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tr`
[INFO] [stdout]   --> src/main.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let (tx, tr) = mpsc::channel::<Friend>();
[INFO] [stdout]    |              ^^ help: if this is intentional, prefix it with an underscore: `_tr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_to_db` is never used
[INFO] [stdout]  --> src/db/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn save_to_db() {}
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/db/models.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) struct Friend {
[INFO] [stdout]   |                   ------ field in this struct
[INFO] [stdout] 3 |     pub(crate) id: u32,
[INFO] [stdout]   |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newFriend` should have a snake case name
[INFO] [stdout]    --> src/api/functions.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let mut newFriend = Friend::default();
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `new_friend`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]    --> src/api/functions.rs:126:16
[INFO] [stdout]     |
[INFO] [stdout] 126 |             Ok(result) => {
[INFO] [stdout]     |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tr`
[INFO] [stdout]   --> src/main.rs:12:14
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let (tx, tr) = mpsc::channel::<Friend>();
[INFO] [stdout]    |              ^^ help: if this is intentional, prefix it with an underscore: `_tr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `save_to_db` is never used
[INFO] [stdout]  --> src/db/functions.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub(crate) fn save_to_db() {}
[INFO] [stdout]   |               ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/db/models.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub(crate) struct Friend {
[INFO] [stdout]   |                   ------ field in this struct
[INFO] [stdout] 3 |     pub(crate) id: u32,
[INFO] [stdout]   |                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newFriend` should have a snake case name
[INFO] [stdout]    --> src/api/functions.rs:108:17
[INFO] [stdout]     |
[INFO] [stdout] 108 |         let mut newFriend = Friend::default();
[INFO] [stdout]     |                 ^^^^^^^^^ help: convert the identifier to snake case: `new_friend`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 48.73s
[INFO] running `Command { std: "docker" "inspect" "d334e0289862f5db472e8169cd30070934e844abd86073767e8dca0d5949a51e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d334e0289862f5db472e8169cd30070934e844abd86073767e8dca0d5949a51e", kill_on_drop: false }`
[INFO] [stdout] d334e0289862f5db472e8169cd30070934e844abd86073767e8dca0d5949a51e