[INFO] cloning repository https://github.com/glaucuslinux/radula-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/glaucuslinux/radula-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglaucuslinux%2Fradula-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglaucuslinux%2Fradula-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f581c6688cd99840dc25a6081b9a22eab4b0cb8d
[INFO] testing glaucuslinux/radula-rs against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglaucuslinux%2Fradula-rs" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/glaucuslinux/radula-rs on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/glaucuslinux/radula-rs
[INFO] finished tweaking git repo https://github.com/glaucuslinux/radula-rs
[INFO] tweaked toml for git repo https://github.com/glaucuslinux/radula-rs written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/glaucuslinux/radula-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea4575e4840b572ad64e0d0259d1fa5f40db1fb71a813aa6da9b49e8d8c6499f
[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" "ea4575e4840b572ad64e0d0259d1fa5f40db1fb71a813aa6da9b49e8d8c6499f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea4575e4840b572ad64e0d0259d1fa5f40db1fb71a813aa6da9b49e8d8c6499f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea4575e4840b572ad64e0d0259d1fa5f40db1fb71a813aa6da9b49e8d8c6499f", kill_on_drop: false }`
[INFO] [stdout] ea4575e4840b572ad64e0d0259d1fa5f40db1fb71a813aa6da9b49e8d8c6499f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e01d6d8a3698f1fd71138911d886a5f7a4c5ac50a6169c0537391339c2681435
[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" "e01d6d8a3698f1fd71138911d886a5f7a4c5ac50a6169c0537391339c2681435", kill_on_drop: false }`
[INFO] [stderr]    Compiling radula v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `RADULA_PATH_ETC`
[INFO] [stdout]    --> src/constants.rs:306:1
[INFO] [stdout]     |
[INFO] [stdout] 306 | pub const RADULA_PATH_ETC: &'static str = "etc";
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RADULA_TOOTH_BASH`
[INFO] [stdout]    --> src/constants.rs:336:1
[INFO] [stdout]     |
[INFO] [stdout] 336 | pub const RADULA_TOOTH_BASH: &'static str = "bash";
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RADULA_TOOTH_REFLEX`
[INFO] [stdout]    --> src/constants.rs:385:1
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub const RADULA_TOOTH_REFLEX: &'static str = "reflex";
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `radula_behave_bootstrap_cross_strip`
[INFO] [stdout]    --> src/functions.rs:500:4
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn radula_behave_bootstrap_cross_strip() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:224:5
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 226 | /     fs::remove_dir_all(
[INFO] [stdout] 227 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 228 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 | /     fs::remove_dir_all(
[INFO] [stdout] 231 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 232 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:481:5
[INFO] [stdout]     |
[INFO] [stdout] 481 | /     fs::remove_dir_all(
[INFO] [stdout] 482 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 483 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:484:5
[INFO] [stdout]     |
[INFO] [stdout] 484 | /     fs::create_dir(
[INFO] [stdout] 485 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 486 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:489:5
[INFO] [stdout]     |
[INFO] [stdout] 489 | /     fs::create_dir(
[INFO] [stdout] 490 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_SOURCES).unwrap(),
[INFO] [stdout] 491 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:494:5
[INFO] [stdout]     |
[INFO] [stdout] 494 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:497:5
[INFO] [stdout]     |
[INFO] [stdout] 497 |     fs::remove_file(env::var(constants::RADULA_ENVIRONMENT_FILE_CROSS_LOG).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:592:5
[INFO] [stdout]     |
[INFO] [stdout] 592 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_BACKUPS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:594:5
[INFO] [stdout]     |
[INFO] [stdout] 594 | /     fs::remove_file(
[INFO] [stdout] 595 | |         Path::new(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_GLAUCUS).unwrap())
[INFO] [stdout] 596 | |             .join(constants::RADULA_FILE_GLAUCUS_IMAGE),
[INFO] [stdout] 597 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:599:5
[INFO] [stdout]     |
[INFO] [stdout] 599 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_SOURCES).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:606:5
[INFO] [stdout]     |
[INFO] [stdout] 606 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TEMPORARY).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:665:5
[INFO] [stdout]     |
[INFO] [stdout] 665 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_BACKUPS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:666:5
[INFO] [stdout]     |
[INFO] [stdout] 666 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:667:5
[INFO] [stdout]     |
[INFO] [stdout] 667 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_SOURCES).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:668:5
[INFO] [stdout]     |
[INFO] [stdout] 668 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TEMPORARY).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:736:5
[INFO] [stdout]     |
[INFO] [stdout] 736 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:738:5
[INFO] [stdout]     |
[INFO] [stdout] 738 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:740:5
[INFO] [stdout]     |
[INFO] [stdout] 740 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:741:5
[INFO] [stdout]     |
[INFO] [stdout] 741 | /     fs::create_dir(
[INFO] [stdout] 742 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 743 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:745:5
[INFO] [stdout]     |
[INFO] [stdout] 745 | /     fs::create_dir(
[INFO] [stdout] 746 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_SOURCES).unwrap(),
[INFO] [stdout] 747 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:759:5
[INFO] [stdout]     |
[INFO] [stdout] 759 |     fs::remove_dir_all(x);
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:760:5
[INFO] [stdout]     |
[INFO] [stdout] 760 |     fs::create_dir(x);
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:778:5
[INFO] [stdout]     |
[INFO] [stdout] 778 | /     fs::remove_dir_all(
[INFO] [stdout] 779 | |         Path::new(x)
[INFO] [stdout] 780 | |             .join(constants::RADULA_DIRECTORY_CROSS)
[INFO] [stdout] 781 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stdout] 782 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:783:5
[INFO] [stdout]     |
[INFO] [stdout] 783 | /     fs::remove_dir_all(
[INFO] [stdout] 784 | |         Path::new(x)
[INFO] [stdout] 785 | |             .join(constants::RADULA_DIRECTORY_CROSS)
[INFO] [stdout] 786 | |             .join(constants::RADULA_PATH_USR)
[INFO] [stdout] 787 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stdout] 788 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:789:5
[INFO] [stdout]     |
[INFO] [stdout] 789 | /     fs::remove_dir_all(
[INFO] [stdout] 790 | |         Path::new(x)
[INFO] [stdout] 791 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stdout] 792 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stdout] 793 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:867:5
[INFO] [stdout]     |
[INFO] [stdout] 867 | /     fs::remove_dir_all(
[INFO] [stdout] 868 | |         Path::new(x)
[INFO] [stdout] 869 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stdout] 870 | |             .join(constants::RADULA_PATH_SHARE)
[INFO] [stdout] 871 | |             .join(constants::RADULA_PATH_INFO),
[INFO] [stdout] 872 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:873:5
[INFO] [stdout]     |
[INFO] [stdout] 873 | /     fs::remove_dir_all(
[INFO] [stdout] 874 | |         Path::new(x)
[INFO] [stdout] 875 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stdout] 876 | |             .join(constants::RADULA_PATH_SHARE)
[INFO] [stdout] 877 | |             .join(constants::RADULA_PATH_MAN),
[INFO] [stdout] 878 | |     );
[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 `Result` that must be used
[INFO] [stdout]     --> src/functions.rs:1164:13
[INFO] [stdout]      |
[INFO] [stdout] 1164 |             fs::create_dir(z);
[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: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "e01d6d8a3698f1fd71138911d886a5f7a4c5ac50a6169c0537391339c2681435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01d6d8a3698f1fd71138911d886a5f7a4c5ac50a6169c0537391339c2681435", kill_on_drop: false }`
[INFO] [stdout] e01d6d8a3698f1fd71138911d886a5f7a4c5ac50a6169c0537391339c2681435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b725d007bf39d793f94f3aa2a3bc2b97eb7ad8f8c1ebf1dfde1c1d6df35d5b01
[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" "b725d007bf39d793f94f3aa2a3bc2b97eb7ad8f8c1ebf1dfde1c1d6df35d5b01", kill_on_drop: false }`
[INFO] [stderr]    Compiling radula v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `RADULA_PATH_ETC`
[INFO] [stdout]    --> src/constants.rs:306:1
[INFO] [stdout]     |
[INFO] [stdout] 306 | pub const RADULA_PATH_ETC: &'static str = "etc";
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RADULA_TOOTH_BASH`
[INFO] [stdout]    --> src/constants.rs:336:1
[INFO] [stdout]     |
[INFO] [stdout] 336 | pub const RADULA_TOOTH_BASH: &'static str = "bash";
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `RADULA_TOOTH_REFLEX`
[INFO] [stdout]    --> src/constants.rs:385:1
[INFO] [stdout]     |
[INFO] [stdout] 385 | pub const RADULA_TOOTH_REFLEX: &'static str = "reflex";
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `radula_behave_bootstrap_cross_strip`
[INFO] [stdout]    --> src/functions.rs:500:4
[INFO] [stdout]     |
[INFO] [stdout] 500 | fn radula_behave_bootstrap_cross_strip() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:222:5
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:224:5
[INFO] [stdout]     |
[INFO] [stdout] 224 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 226 | /     fs::remove_dir_all(
[INFO] [stdout] 227 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 228 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:230:5
[INFO] [stdout]     |
[INFO] [stdout] 230 | /     fs::remove_dir_all(
[INFO] [stdout] 231 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 232 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:234:5
[INFO] [stdout]     |
[INFO] [stdout] 234 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:481:5
[INFO] [stdout]     |
[INFO] [stdout] 481 | /     fs::remove_dir_all(
[INFO] [stdout] 482 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 483 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:484:5
[INFO] [stdout]     |
[INFO] [stdout] 484 | /     fs::create_dir(
[INFO] [stdout] 485 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 486 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:489:5
[INFO] [stdout]     |
[INFO] [stdout] 489 | /     fs::create_dir(
[INFO] [stdout] 490 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_SOURCES).unwrap(),
[INFO] [stdout] 491 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:494:5
[INFO] [stdout]     |
[INFO] [stdout] 494 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:497:5
[INFO] [stdout]     |
[INFO] [stdout] 497 |     fs::remove_file(env::var(constants::RADULA_ENVIRONMENT_FILE_CROSS_LOG).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:592:5
[INFO] [stdout]     |
[INFO] [stdout] 592 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_BACKUPS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:594:5
[INFO] [stdout]     |
[INFO] [stdout] 594 | /     fs::remove_file(
[INFO] [stdout] 595 | |         Path::new(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_GLAUCUS).unwrap())
[INFO] [stdout] 596 | |             .join(constants::RADULA_FILE_GLAUCUS_IMAGE),
[INFO] [stdout] 597 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:599:5
[INFO] [stdout]     |
[INFO] [stdout] 599 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_SOURCES).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:606:5
[INFO] [stdout]     |
[INFO] [stdout] 606 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TEMPORARY).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:665:5
[INFO] [stdout]     |
[INFO] [stdout] 665 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_BACKUPS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:666:5
[INFO] [stdout]     |
[INFO] [stdout] 666 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:667:5
[INFO] [stdout]     |
[INFO] [stdout] 667 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_SOURCES).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:668:5
[INFO] [stdout]     |
[INFO] [stdout] 668 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TEMPORARY).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:736:5
[INFO] [stdout]     |
[INFO] [stdout] 736 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:738:5
[INFO] [stdout]     |
[INFO] [stdout] 738 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:740:5
[INFO] [stdout]     |
[INFO] [stdout] 740 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY).unwrap());
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:741:5
[INFO] [stdout]     |
[INFO] [stdout] 741 | /     fs::create_dir(
[INFO] [stdout] 742 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_BUILDS).unwrap(),
[INFO] [stdout] 743 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:745:5
[INFO] [stdout]     |
[INFO] [stdout] 745 | /     fs::create_dir(
[INFO] [stdout] 746 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_SOURCES).unwrap(),
[INFO] [stdout] 747 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:759:5
[INFO] [stdout]     |
[INFO] [stdout] 759 |     fs::remove_dir_all(x);
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:760:5
[INFO] [stdout]     |
[INFO] [stdout] 760 |     fs::create_dir(x);
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:778:5
[INFO] [stdout]     |
[INFO] [stdout] 778 | /     fs::remove_dir_all(
[INFO] [stdout] 779 | |         Path::new(x)
[INFO] [stdout] 780 | |             .join(constants::RADULA_DIRECTORY_CROSS)
[INFO] [stdout] 781 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stdout] 782 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:783:5
[INFO] [stdout]     |
[INFO] [stdout] 783 | /     fs::remove_dir_all(
[INFO] [stdout] 784 | |         Path::new(x)
[INFO] [stdout] 785 | |             .join(constants::RADULA_DIRECTORY_CROSS)
[INFO] [stdout] 786 | |             .join(constants::RADULA_PATH_USR)
[INFO] [stdout] 787 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stdout] 788 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:789:5
[INFO] [stdout]     |
[INFO] [stdout] 789 | /     fs::remove_dir_all(
[INFO] [stdout] 790 | |         Path::new(x)
[INFO] [stdout] 791 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stdout] 792 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stdout] 793 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:867:5
[INFO] [stdout]     |
[INFO] [stdout] 867 | /     fs::remove_dir_all(
[INFO] [stdout] 868 | |         Path::new(x)
[INFO] [stdout] 869 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stdout] 870 | |             .join(constants::RADULA_PATH_SHARE)
[INFO] [stdout] 871 | |             .join(constants::RADULA_PATH_INFO),
[INFO] [stdout] 872 | |     );
[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 `Result` that must be used
[INFO] [stdout]    --> src/functions.rs:873:5
[INFO] [stdout]     |
[INFO] [stdout] 873 | /     fs::remove_dir_all(
[INFO] [stdout] 874 | |         Path::new(x)
[INFO] [stdout] 875 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stdout] 876 | |             .join(constants::RADULA_PATH_SHARE)
[INFO] [stdout] 877 | |             .join(constants::RADULA_PATH_MAN),
[INFO] [stdout] 878 | |     );
[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 `Result` that must be used
[INFO] [stdout]     --> src/functions.rs:1164:13
[INFO] [stdout]      |
[INFO] [stdout] 1164 |             fs::create_dir(z);
[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: 35 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "b725d007bf39d793f94f3aa2a3bc2b97eb7ad8f8c1ebf1dfde1c1d6df35d5b01", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b725d007bf39d793f94f3aa2a3bc2b97eb7ad8f8c1ebf1dfde1c1d6df35d5b01", kill_on_drop: false }`
[INFO] [stdout] b725d007bf39d793f94f3aa2a3bc2b97eb7ad8f8c1ebf1dfde1c1d6df35d5b01
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ff3df9288575deb9b8c632b6af7b6f7a6cee4312e76a641b258a57401cb3d67
[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" "3ff3df9288575deb9b8c632b6af7b6f7a6cee4312e76a641b258a57401cb3d67", kill_on_drop: false }`
[INFO] [stderr] warning: constant is never used: `RADULA_PATH_ETC`
[INFO] [stderr]    --> src/constants.rs:306:1
[INFO] [stderr]     |
[INFO] [stderr] 306 | pub const RADULA_PATH_ETC: &'static str = "etc";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `RADULA_TOOTH_BASH`
[INFO] [stderr]    --> src/constants.rs:336:1
[INFO] [stderr]     |
[INFO] [stderr] 336 | pub const RADULA_TOOTH_BASH: &'static str = "bash";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `RADULA_TOOTH_REFLEX`
[INFO] [stderr]    --> src/constants.rs:385:1
[INFO] [stderr]     |
[INFO] [stderr] 385 | pub const RADULA_TOOTH_REFLEX: &'static str = "reflex";
[INFO] [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `radula_behave_bootstrap_cross_strip`
[INFO] [stderr]    --> src/functions.rs:500:4
[INFO] [stderr]     |
[INFO] [stderr] 500 | fn radula_behave_bootstrap_cross_strip() {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:222:5
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS).unwrap());
[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 `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:224:5
[INFO] [stderr]     |
[INFO] [stderr] 224 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:226:5
[INFO] [stderr]     |
[INFO] [stderr] 226 | /     fs::remove_dir_all(
[INFO] [stderr] 227 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_BUILDS).unwrap(),
[INFO] [stderr] 228 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:230:5
[INFO] [stderr]     |
[INFO] [stderr] 230 | /     fs::remove_dir_all(
[INFO] [stderr] 231 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stderr] 232 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 234 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:481:5
[INFO] [stderr]     |
[INFO] [stderr] 481 | /     fs::remove_dir_all(
[INFO] [stderr] 482 | |         &env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stderr] 483 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:484:5
[INFO] [stderr]     |
[INFO] [stderr] 484 | /     fs::create_dir(
[INFO] [stderr] 485 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_BUILDS).unwrap(),
[INFO] [stderr] 486 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:489:5
[INFO] [stderr]     |
[INFO] [stderr] 489 | /     fs::create_dir(
[INFO] [stderr] 490 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS_TEMPORARY_SOURCES).unwrap(),
[INFO] [stderr] 491 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:494:5
[INFO] [stderr]     |
[INFO] [stderr] 494 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:497:5
[INFO] [stderr]     |
[INFO] [stderr] 497 |     fs::remove_file(env::var(constants::RADULA_ENVIRONMENT_FILE_CROSS_LOG).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:592:5
[INFO] [stderr]     |
[INFO] [stderr] 592 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_BACKUPS).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:594:5
[INFO] [stderr]     |
[INFO] [stderr] 594 | /     fs::remove_file(
[INFO] [stderr] 595 | |         Path::new(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_GLAUCUS).unwrap())
[INFO] [stderr] 596 | |             .join(constants::RADULA_FILE_GLAUCUS_IMAGE),
[INFO] [stderr] 597 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:599:5
[INFO] [stderr]     |
[INFO] [stderr] 599 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_SOURCES).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:606:5
[INFO] [stderr]     |
[INFO] [stderr] 606 |     fs::remove_dir_all(&env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TEMPORARY).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:665:5
[INFO] [stderr]     |
[INFO] [stderr] 665 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_BACKUPS).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:666:5
[INFO] [stderr]     |
[INFO] [stderr] 666 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_LOGS).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:667:5
[INFO] [stderr]     |
[INFO] [stderr] 667 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_SOURCES).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:668:5
[INFO] [stderr]     |
[INFO] [stderr] 668 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TEMPORARY).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:736:5
[INFO] [stderr]     |
[INFO] [stderr] 736 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_CROSS).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:738:5
[INFO] [stderr]     |
[INFO] [stderr] 738 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:740:5
[INFO] [stderr]     |
[INFO] [stderr] 740 |     fs::create_dir(env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY).unwrap());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:741:5
[INFO] [stderr]     |
[INFO] [stderr] 741 | /     fs::create_dir(
[INFO] [stderr] 742 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_BUILDS).unwrap(),
[INFO] [stderr] 743 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:745:5
[INFO] [stderr]     |
[INFO] [stderr] 745 | /     fs::create_dir(
[INFO] [stderr] 746 | |         env::var(constants::RADULA_ENVIRONMENT_DIRECTORY_TOOLCHAIN_TEMPORARY_SOURCES).unwrap(),
[INFO] [stderr] 747 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:759:5
[INFO] [stderr]     |
[INFO] [stderr] 759 |     fs::remove_dir_all(x);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:760:5
[INFO] [stderr]     |
[INFO] [stderr] 760 |     fs::create_dir(x);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:778:5
[INFO] [stderr]     |
[INFO] [stderr] 778 | /     fs::remove_dir_all(
[INFO] [stderr] 779 | |         Path::new(x)
[INFO] [stderr] 780 | |             .join(constants::RADULA_DIRECTORY_CROSS)
[INFO] [stderr] 781 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stderr] 782 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:783:5
[INFO] [stderr]     |
[INFO] [stderr] 783 | /     fs::remove_dir_all(
[INFO] [stderr] 784 | |         Path::new(x)
[INFO] [stderr] 785 | |             .join(constants::RADULA_DIRECTORY_CROSS)
[INFO] [stderr] 786 | |             .join(constants::RADULA_PATH_USR)
[INFO] [stderr] 787 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stderr] 788 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:789:5
[INFO] [stderr]     |
[INFO] [stderr] 789 | /     fs::remove_dir_all(
[INFO] [stderr] 790 | |         Path::new(x)
[INFO] [stderr] 791 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stderr] 792 | |             .join(constants::RADULA_PATH_LIB64),
[INFO] [stderr] 793 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:867:5
[INFO] [stderr]     |
[INFO] [stderr] 867 | /     fs::remove_dir_all(
[INFO] [stderr] 868 | |         Path::new(x)
[INFO] [stderr] 869 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stderr] 870 | |             .join(constants::RADULA_PATH_SHARE)
[INFO] [stderr] 871 | |             .join(constants::RADULA_PATH_INFO),
[INFO] [stderr] 872 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/functions.rs:873:5
[INFO] [stderr]     |
[INFO] [stderr] 873 | /     fs::remove_dir_all(
[INFO] [stderr] 874 | |         Path::new(x)
[INFO] [stderr] 875 | |             .join(constants::RADULA_DIRECTORY_TOOLCHAIN)
[INFO] [stderr] 876 | |             .join(constants::RADULA_PATH_SHARE)
[INFO] [stderr] 877 | |             .join(constants::RADULA_PATH_MAN),
[INFO] [stderr] 878 | |     );
[INFO] [stderr]     | |______^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]     --> src/functions.rs:1164:13
[INFO] [stderr]      |
[INFO] [stderr] 1164 |             fs::create_dir(z);
[INFO] [stderr]      |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `radula` (bin "radula" test) generated 35 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/radula-e0e5d4d1b815d390)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ff3df9288575deb9b8c632b6af7b6f7a6cee4312e76a641b258a57401cb3d67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ff3df9288575deb9b8c632b6af7b6f7a6cee4312e76a641b258a57401cb3d67", kill_on_drop: false }`
[INFO] [stdout] 3ff3df9288575deb9b8c632b6af7b6f7a6cee4312e76a641b258a57401cb3d67