[INFO] cloning repository https://github.com/ludvigsen/rust-fagdag
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ludvigsen/rust-fagdag" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludvigsen%2Frust-fagdag", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fludvigsen%2Frust-fagdag'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f20fb75f26f1780d36d46056df110d7f6407252
[INFO] testing ludvigsen/rust-fagdag 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%2Fludvigsen%2Frust-fagdag" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ludvigsen/rust-fagdag 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/ludvigsen/rust-fagdag
[INFO] finished tweaking git repo https://github.com/ludvigsen/rust-fagdag
[INFO] tweaked toml for git repo https://github.com/ludvigsen/rust-fagdag written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/ludvigsen/rust-fagdag 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] fdd4fe8768e2a9fb6fefebd83ac9a741f290f3ec44adeada6ee6ab3568a74b1c
[INFO] running `Command { std: "docker" "start" "-a" "fdd4fe8768e2a9fb6fefebd83ac9a741f290f3ec44adeada6ee6ab3568a74b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdd4fe8768e2a9fb6fefebd83ac9a741f290f3ec44adeada6ee6ab3568a74b1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd4fe8768e2a9fb6fefebd83ac9a741f290f3ec44adeada6ee6ab3568a74b1c", kill_on_drop: false }`
[INFO] [stdout] fdd4fe8768e2a9fb6fefebd83ac9a741f290f3ec44adeada6ee6ab3568a74b1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] 1f227caca95a67d2bf2034c2a3a225d3064210289f2b71c4211358546d303b95
[INFO] running `Command { std: "docker" "start" "-a" "1f227caca95a67d2bf2034c2a3a225d3064210289f2b71c4211358546d303b95", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-fagdag v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `main2`
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IntOption`
[INFO] [stdout]   --> src/main.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum IntOption {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CharOption`
[INFO] [stdout]   --> src/main.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum CharOption {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Option`
[INFO] [stdout]   --> src/main.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | enum Option <T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.38s
[INFO] running `Command { std: "docker" "inspect" "1f227caca95a67d2bf2034c2a3a225d3064210289f2b71c4211358546d303b95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f227caca95a67d2bf2034c2a3a225d3064210289f2b71c4211358546d303b95", kill_on_drop: false }`
[INFO] [stdout] 1f227caca95a67d2bf2034c2a3a225d3064210289f2b71c4211358546d303b95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] ab335b71e1928be77609becd0b675c85cd078df56c8c32048daf854c839c1371
[INFO] running `Command { std: "docker" "start" "-a" "ab335b71e1928be77609becd0b675c85cd078df56c8c32048daf854c839c1371", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: function is never used: `main2`
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-fagdag v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: enum is never used: `IntOption`
[INFO] [stdout]   --> src/main.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum IntOption {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CharOption`
[INFO] [stdout]   --> src/main.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum CharOption {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Option`
[INFO] [stdout]   --> src/main.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | enum Option <T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Opt::*`
[INFO] [stdout]   --> tests/generics_live.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |     use Opt::*;
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fourth`
[INFO] [stdout]   --> tests/error_live.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let fourth = vec.get(3); // None
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fourth`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third`
[INFO] [stdout]   --> tests/error_live.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let third = vec.get(2); // Some(3)
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_third`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `res`
[INFO] [stdout]   --> tests/error_live.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let res = "2".parse::<i32>();
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `some_string`
[INFO] [stdout]  --> tests/error_live.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 |   fn some_string() -> Option<Vec<i32>>{
[INFO] [stdout]   |      ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `main2`
[INFO] [stdout]   --> src/main.rs:34:4
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn main2() {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `IntOption`
[INFO] [stdout]   --> src/main.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum IntOption {
[INFO] [stdout]    |      ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CharOption`
[INFO] [stdout]   --> src/main.rs:46:6
[INFO] [stdout]    |
[INFO] [stdout] 46 | enum CharOption {
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Option`
[INFO] [stdout]   --> src/main.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 | enum Option <T> {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_animal`
[INFO] [stdout]   --> tests/generics_live.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let empty_animal = Animal {
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_animal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cat`
[INFO] [stdout]   --> tests/generics_live.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let cat = Animal {
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_cat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> tests/generics_live.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |       name: String,
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Som`
[INFO] [stdout]   --> tests/generics_live.rs:61:7
[INFO] [stdout]    |
[INFO] [stdout] 61 |       Som(T),
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Non`
[INFO] [stdout]   --> tests/generics_live.rs:62:7
[INFO] [stdout]    |
[INFO] [stdout] 62 |       Non
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "ab335b71e1928be77609becd0b675c85cd078df56c8c32048daf854c839c1371", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab335b71e1928be77609becd0b675c85cd078df56c8c32048daf854c839c1371", kill_on_drop: false }`
[INFO] [stdout] ab335b71e1928be77609becd0b675c85cd078df56c8c32048daf854c839c1371
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] be7b81ced8951d0c5cb026ec1dde7a573aac94b1ef0e2bc4026735dcf1623f77
[INFO] running `Command { std: "docker" "start" "-a" "be7b81ced8951d0c5cb026ec1dde7a573aac94b1ef0e2bc4026735dcf1623f77", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `fourth`
[INFO] [stderr]   --> tests/error_live.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let fourth = vec.get(3); // None
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_fourth`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `third`
[INFO] [stderr]   --> tests/error_live.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let third = vec.get(2); // Some(3)
[INFO] [stderr]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_third`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `res`
[INFO] [stderr]   --> tests/error_live.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let res = "2".parse::<i32>();
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_res`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `some_string`
[INFO] [stderr]  --> tests/error_live.rs:4:6
[INFO] [stderr]   |
[INFO] [stderr] 4 |   fn some_string() -> Option<Vec<i32>>{
[INFO] [stderr]   |      ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-fagdag` (test "error_live") generated 4 warnings
[INFO] [stderr] warning: unused import: `Opt::*`
[INFO] [stderr]   --> tests/generics_live.rs:64:9
[INFO] [stderr]    |
[INFO] [stderr] 64 |     use Opt::*;
[INFO] [stderr]    |         ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `empty_animal`
[INFO] [stderr]   --> tests/generics_live.rs:36:9
[INFO] [stderr]    |
[INFO] [stderr] 36 |     let empty_animal = Animal {
[INFO] [stderr]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_animal`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `cat`
[INFO] [stderr]   --> tests/generics_live.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let cat = Animal {
[INFO] [stderr]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_cat`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> tests/generics_live.rs:31:7
[INFO] [stderr]    |
[INFO] [stderr] 31 |       name: String,
[INFO] [stderr]    |       ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Som`
[INFO] [stderr]   --> tests/generics_live.rs:61:7
[INFO] [stderr]    |
[INFO] [stderr] 61 |       Som(T),
[INFO] [stderr]    |       ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Non`
[INFO] [stderr]   --> tests/generics_live.rs:62:7
[INFO] [stderr]    |
[INFO] [stderr] 62 |       Non
[INFO] [stderr]    |       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `main2`
[INFO] [stderr]   --> src/main.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn main2() {
[INFO] [stderr]    |    ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `IntOption`
[INFO] [stderr]   --> src/main.rs:41:6
[INFO] [stderr]    |
[INFO] [stderr] 41 | enum IntOption {
[INFO] [stderr]    |      ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CharOption`
[INFO] [stderr]   --> src/main.rs:46:6
[INFO] [stderr]    |
[INFO] [stderr] 46 | enum CharOption {
[INFO] [stderr]    |      ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `Option`
[INFO] [stderr]   --> src/main.rs:51:6
[INFO] [stderr]    |
[INFO] [stderr] 51 | enum Option <T> {
[INFO] [stderr]    |      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-fagdag` (test "generics_live") generated 6 warnings
[INFO] [stderr] warning: `rust-fagdag` (bin "rust-fagdag") generated 4 warnings
[INFO] [stderr] warning: `rust-fagdag` (bin "rust-fagdag" test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_fagdag-2c82288aa1b85a3b)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/error_live.rs (/opt/rustwide/target/debug/deps/error_live-4b9c93d2d65426cc)
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test error_tests::test_option ... ok
[INFO] [stdout] test error_tests::test_result ... ok
[INFO] [stdout] test error_tests::test_try ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/generics_live.rs (/opt/rustwide/target/debug/deps/generics_live-3caf512ccf71f96b)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test generics_tests::generic_trait_test ... ignored
[INFO] [stdout] test generics_tests::generics_test ... ignored
[INFO] [stdout] test generics_tests::trait_test ... ignored
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "be7b81ced8951d0c5cb026ec1dde7a573aac94b1ef0e2bc4026735dcf1623f77", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7b81ced8951d0c5cb026ec1dde7a573aac94b1ef0e2bc4026735dcf1623f77", kill_on_drop: false }`
[INFO] [stdout] be7b81ced8951d0c5cb026ec1dde7a573aac94b1ef0e2bc4026735dcf1623f77