[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] be10252f8e2dc44c45890f614bc5a718be6ef69d
[INFO] testing Blue-Pix/ezio against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBlue-Pix%2Fezio" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Blue-Pix/ezio on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-5/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" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde-value v0.6.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.13
[INFO] [stderr]   Downloaded log4rs v0.13.0
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[INFO] [stderr]   Downloaded data-encoding v2.3.0
[INFO] [stderr]   Downloaded select v0.5.0
[INFO] [stderr]   Downloaded simba v0.1.5
[INFO] [stderr]   Downloaded pnet_datalink v0.26.0
[INFO] [stderr]   Downloaded pnet_transport v0.26.0
[INFO] [stderr]   Downloaded pnet_sys v0.26.0
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[INFO] [stderr]   Downloaded pnet_macros v0.26.0
[INFO] [stderr]   Downloaded pnet_base v0.26.0
[INFO] [stderr]   Downloaded postgres-protocol v0.5.2
[INFO] [stderr]   Downloaded postgres-types v0.1.2
[INFO] [stderr]   Downloaded libsqlite3-sys v0.18.0
[INFO] [stderr]   Downloaded pnet_macros_support v0.26.0
[INFO] [stderr]   Downloaded pnet_packet v0.26.0
[INFO] [stderr]   Downloaded pnet v0.26.0
[INFO] [stderr]   Downloaded tokio-postgres v0.5.5
[INFO] [stderr]   Downloaded postgres v0.17.5
[INFO] [stderr]   Downloaded semver v0.10.0
[INFO] [stderr]   Downloaded syslog v5.0.0
[INFO] [stderr]   Downloaded nalgebra v0.21.1
[INFO] [stderr]   Downloaded tar v0.4.29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bc2cb0fcba7dcb12e35b7bb9dcc94482374c29ba7fb9e57d89b12bc6092b0581
[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" "bc2cb0fcba7dcb12e35b7bb9dcc94482374c29ba7fb9e57d89b12bc6092b0581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bc2cb0fcba7dcb12e35b7bb9dcc94482374c29ba7fb9e57d89b12bc6092b0581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc2cb0fcba7dcb12e35b7bb9dcc94482374c29ba7fb9e57d89b12bc6092b0581", kill_on_drop: false }`
[INFO] [stdout] bc2cb0fcba7dcb12e35b7bb9dcc94482374c29ba7fb9e57d89b12bc6092b0581
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 186a8d18cd1c0af5a5b62f1c9b8c116fc15ea8991322c6ff3e8c008833ebe115
[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" "186a8d18cd1c0af5a5b62f1c9b8c116fc15ea8991322c6ff3e8c008833ebe115", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.36
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling smallvec v1.4.1
[INFO] [stderr]    Compiling ndarray v0.13.1
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[INFO] [stderr]    Compiling ezio v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling openssl-sys v0.9.58
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[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
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[INFO] [stderr]    Compiling nalgebra v0.21.1
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[INFO] [stderr]    Compiling serde_derive v1.0.115
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[INFO] [stderr]    Compiling pin-project v0.4.23
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[INFO] [stderr]    Compiling serde v1.0.115
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[INFO] [stderr]    Compiling serde_yaml v0.8.13
[INFO] [stderr]    Compiling serde-value v0.6.0
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling bstr v0.2.13
[INFO] [stderr]    Compiling ipnetwork v0.17.0
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling pnet_datalink v0.26.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling tracing v0.1.19
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling syslog v5.0.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling csv v1.1.3
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling log4rs v0.13.0
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]    Compiling xml5ever v0.16.1
[INFO] [stderr]    Compiling markup5ever_rcdom v0.1.0
[INFO] [stderr]    Compiling select v0.5.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.6
[INFO] [stderr]    Compiling tokio-postgres v0.5.5
[INFO] [stderr]    Compiling postgres v0.17.5
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.26.0
[INFO] [stderr]    Compiling hyper v0.13.7
[INFO] [stderr]    Compiling pnet_packet v0.26.0
[INFO] [stderr]    Compiling hyper-tls v0.4.3
[INFO] [stderr]    Compiling reqwest v0.10.7
[INFO] [stderr]    Compiling pnet_transport v0.26.0
[INFO] [stderr]    Compiling pnet v0.26.0
[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: 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6m 17s
[INFO] running `Command { std: "docker" "inspect" "186a8d18cd1c0af5a5b62f1c9b8c116fc15ea8991322c6ff3e8c008833ebe115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "186a8d18cd1c0af5a5b62f1c9b8c116fc15ea8991322c6ff3e8c008833ebe115", kill_on_drop: false }`
[INFO] [stdout] 186a8d18cd1c0af5a5b62f1c9b8c116fc15ea8991322c6ff3e8c008833ebe115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6069f580f3f3909b85adf8867258f9dc1c1945879eeb226e3fa613cf0518dfd2
[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" "6069f580f3f3909b85adf8867258f9dc1c1945879eeb226e3fa613cf0518dfd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling ezio v0.1.0 (/opt/rustwide/workdir)
[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: 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: 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: 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.40s
[INFO] running `Command { std: "docker" "inspect" "6069f580f3f3909b85adf8867258f9dc1c1945879eeb226e3fa613cf0518dfd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6069f580f3f3909b85adf8867258f9dc1c1945879eeb226e3fa613cf0518dfd2", kill_on_drop: false }`
[INFO] [stdout] 6069f580f3f3909b85adf8867258f9dc1c1945879eeb226e3fa613cf0518dfd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b66f7c7ddc3823f6eb292870f9ea783a5b88f3a461730a6130c3811fd50ef09d
[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" "b66f7c7ddc3823f6eb292870f9ea783a5b88f3a461730a6130c3811fd50ef09d", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `DMatrix`
[INFO] [stderr]  --> src/cookbook/science/mod.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | use nalgebra::{Matrix3, DMatrix};
[INFO] [stderr]   |                         ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/web_server_v2/mod.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     loop {
[INFO] [stderr] 60 | |       match poll.poll(&mut events, None) {
[INFO] [stderr] 61 | |         Ok(_) => {},
[INFO] [stderr] 62 | |         Err(e) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 91 | |
[INFO] [stderr] 92 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 93 | 
[INFO] [stderr] 94 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:114:3
[INFO] [stderr]     |
[INFO] [stderr] 114 |   insert("apple");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:115:3
[INFO] [stderr]     |
[INFO] [stderr] 115 |   insert("orange");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:116:3
[INFO] [stderr]     |
[INFO] [stderr] 116 |   insert("peach");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:123:3
[INFO] [stderr]     |
[INFO] [stderr] 123 |   insert("grape");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:193:3
[INFO] [stderr]     |
[INFO] [stderr] 193 |   img.save("output.png");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `DMatrix`
[INFO] [stderr]  --> src/cookbook/science/mod.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | use nalgebra::{Matrix3, DMatrix};
[INFO] [stderr]   |                         ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/web_server_v2/mod.rs:94:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     loop {
[INFO] [stderr] 60 | |       match poll.poll(&mut events, None) {
[INFO] [stderr] 61 | |         Ok(_) => {},
[INFO] [stderr] 62 | |         Err(e) => {
[INFO] [stderr] ...  |
[INFO] [stderr] 91 | |
[INFO] [stderr] 92 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 93 | 
[INFO] [stderr] 94 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:114:3
[INFO] [stderr]     |
[INFO] [stderr] 114 |   insert("apple");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:115:3
[INFO] [stderr]     |
[INFO] [stderr] 115 |   insert("orange");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:116:3
[INFO] [stderr]     |
[INFO] [stderr] 116 |   insert("peach");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:123:3
[INFO] [stderr]     |
[INFO] [stderr] 123 |   insert("grape");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/cookbook/concurrency/explicit_threads/mod.rs:193:3
[INFO] [stderr]     |
[INFO] [stderr] 193 |   img.save("output.png");
[INFO] [stderr]     |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ezio-a47d56a267594b7f
[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] [stderr]      Running /opt/rustwide/target/debug/deps/main-8b58999f15529ef0
[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] [stderr]    Doc-tests ezio
[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 `Command { std: "docker" "inspect" "b66f7c7ddc3823f6eb292870f9ea783a5b88f3a461730a6130c3811fd50ef09d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b66f7c7ddc3823f6eb292870f9ea783a5b88f3a461730a6130c3811fd50ef09d", kill_on_drop: false }`
[INFO] [stdout] b66f7c7ddc3823f6eb292870f9ea783a5b88f3a461730a6130c3811fd50ef09d
