[INFO] cloning repository https://github.com/Blue-Pix/ezio
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Blue-Pix/ezio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlue-Pix%2Fezio", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlue-Pix%2Fezio'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ee14421072d49672a91509ebe340e0b1b8d5f60c
[INFO] checking Blue-Pix/ezio against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlue-Pix%2Fezio" "/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/Blue-Pix/ezio on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Blue-Pix/ezio
[INFO] finished tweaking git repo https://github.com/Blue-Pix/ezio
[INFO] tweaked toml for git repo https://github.com/Blue-Pix/ezio written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Blue-Pix/ezio already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fdb5c15dd86edbf92f9fffe8cbda26a3f5c48eb30b04476b9b4265a57e87210
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4fdb5c15dd86edbf92f9fffe8cbda26a3f5c48eb30b04476b9b4265a57e87210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fdb5c15dd86edbf92f9fffe8cbda26a3f5c48eb30b04476b9b4265a57e87210", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fdb5c15dd86edbf92f9fffe8cbda26a3f5c48eb30b04476b9b4265a57e87210", kill_on_drop: false }`
[INFO] [stdout] 4fdb5c15dd86edbf92f9fffe8cbda26a3f5c48eb30b04476b9b4265a57e87210
[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=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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58148d8387756b7b0212adc2a3772559ab41c2812a992a0a5544364b952826da
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "58148d8387756b7b0212adc2a3772559ab41c2812a992a0a5544364b952826da", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `DMatrix`
[INFO] [stdout]  --> src/cookbook/science/mod.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use nalgebra::{Matrix3, DMatrix};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DMatrix`
[INFO] [stdout]  --> src/cookbook/science/mod.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | use nalgebra::{Matrix3, DMatrix};
[INFO] [stdout]   |                         ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/web_server_v2/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     loop {
[INFO] [stdout] 60 | |       match poll.poll(&mut events, None) {
[INFO] [stdout] 61 | |         Ok(_) => {},
[INFO] [stdout] 62 | |         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |
[INFO] [stdout] 92 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 93 | 
[INFO] [stdout] 94 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/web_server_v2/mod.rs:94:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | /     loop {
[INFO] [stdout] 60 | |       match poll.poll(&mut events, None) {
[INFO] [stdout] 61 | |         Ok(_) => {},
[INFO] [stdout] 62 | |         Err(e) => {
[INFO] [stdout] ...  |
[INFO] [stdout] 91 | |
[INFO] [stdout] 92 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 93 | 
[INFO] [stdout] 94 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 114 |   insert("apple");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:115:3
[INFO] [stdout]     |
[INFO] [stdout] 115 |   insert("orange");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:116:3
[INFO] [stdout]     |
[INFO] [stdout] 116 |   insert("peach");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:123:3
[INFO] [stdout]     |
[INFO] [stdout] 123 |   insert("grape");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:193:3
[INFO] [stdout]     |
[INFO] [stdout] 193 |   img.save("output.png");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:114:3
[INFO] [stdout]     |
[INFO] [stdout] 114 |   insert("apple");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:115:3
[INFO] [stdout]     |
[INFO] [stdout] 115 |   insert("orange");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:116:3
[INFO] [stdout]     |
[INFO] [stdout] 116 |   insert("peach");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:123:3
[INFO] [stdout]     |
[INFO] [stdout] 123 |   insert("grape");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/cookbook/concurrency/explicit_threads/mod.rs:193:3
[INFO] [stdout]     |
[INFO] [stdout] 193 |   img.save("output.png");
[INFO] [stdout]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 34s
[INFO] running `Command { std: "docker" "inspect" "58148d8387756b7b0212adc2a3772559ab41c2812a992a0a5544364b952826da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58148d8387756b7b0212adc2a3772559ab41c2812a992a0a5544364b952826da", kill_on_drop: false }`
[INFO] [stdout] 58148d8387756b7b0212adc2a3772559ab41c2812a992a0a5544364b952826da
