[INFO] cloning repository https://github.com/timbby/substrate_course_4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/timbby/substrate_course_4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimbby%2Fsubstrate_course_4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimbby%2Fsubstrate_course_4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8976134fc673f3d4975ad26f22324144396e0e22
[INFO] testing timbby/substrate_course_4 against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftimbby%2Fsubstrate_course_4" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/timbby/substrate_course_4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/timbby/substrate_course_4
[INFO] finished tweaking git repo https://github.com/timbby/substrate_course_4
[INFO] tweaked toml for git repo https://github.com/timbby/substrate_course_4 written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/timbby/substrate_course_4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71d86b68231109c8d8613aebd7699edc221b7125d9c4b617ea2917b9e2fef999
[INFO] running `Command { std: "docker" "start" "-a" "71d86b68231109c8d8613aebd7699edc221b7125d9c4b617ea2917b9e2fef999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71d86b68231109c8d8613aebd7699edc221b7125d9c4b617ea2917b9e2fef999", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d86b68231109c8d8613aebd7699edc221b7125d9c4b617ea2917b9e2fef999", kill_on_drop: false }`
[INFO] [stdout] 71d86b68231109c8d8613aebd7699edc221b7125d9c4b617ea2917b9e2fef999
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 82999c9f2ffb5ef6d41795a2cd2de0d9205243d91f701ba9a8497a354e5930a7
[INFO] running `Command { std: "docker" "start" "-a" "82999c9f2ffb5ef6d41795a2cd2de0d9205243d91f701ba9a8497a354e5930a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate_course_4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/test.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Green,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yellow`
[INFO] [stdout]   --> src/test.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Yellow,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]    --> src/test.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         x: T,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/test.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         y: T,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]    --> src/test.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |         fn x(&self) -> &T {
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "82999c9f2ffb5ef6d41795a2cd2de0d9205243d91f701ba9a8497a354e5930a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82999c9f2ffb5ef6d41795a2cd2de0d9205243d91f701ba9a8497a354e5930a7", kill_on_drop: false }`
[INFO] [stdout] 82999c9f2ffb5ef6d41795a2cd2de0d9205243d91f701ba9a8497a354e5930a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd3433f5e6a83c0b8c7371afc40605a5f26a35dad0ee5f87d44d6e9d748cb98f
[INFO] running `Command { std: "docker" "start" "-a" "dd3433f5e6a83c0b8c7371afc40605a5f26a35dad0ee5f87d44d6e9d748cb98f", kill_on_drop: false }`
[INFO] [stderr]    Compiling substrate_course_4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `Green`
[INFO] [stdout]   --> src/test.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Green,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yellow`
[INFO] [stdout]   --> src/test.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     Yellow,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `x`
[INFO] [stdout]    --> src/test.rs:135:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         x: T,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `y`
[INFO] [stdout]    --> src/test.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 136 |         y: T,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]    --> src/test.rs:140:12
[INFO] [stdout]     |
[INFO] [stdout] 140 |         fn x(&self) -> &T {
[INFO] [stdout]     |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "dd3433f5e6a83c0b8c7371afc40605a5f26a35dad0ee5f87d44d6e9d748cb98f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3433f5e6a83c0b8c7371afc40605a5f26a35dad0ee5f87d44d6e9d748cb98f", kill_on_drop: false }`
[INFO] [stdout] dd3433f5e6a83c0b8c7371afc40605a5f26a35dad0ee5f87d44d6e9d748cb98f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 748b11d6479e7a08669917d5225a359ef14a94d616e0bb454230f6ef3a367abd
[INFO] running `Command { std: "docker" "start" "-a" "748b11d6479e7a08669917d5225a359ef14a94d616e0bb454230f6ef3a367abd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variant is never constructed: `Green`
[INFO] [stderr]   --> src/test.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Green,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Yellow`
[INFO] [stderr]   --> src/test.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 |     Yellow,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `x`
[INFO] [stderr]    --> src/test.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         x: T,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `y`
[INFO] [stderr]    --> src/test.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         y: T,
[INFO] [stderr]     |         ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `x`
[INFO] [stderr]    --> src/test.rs:140:12
[INFO] [stderr]     |
[INFO] [stderr] 140 |         fn x(&self) -> &T {
[INFO] [stderr]     |            ^
[INFO] [stderr] 
[INFO] [stderr] warning: `substrate_course_4` (bin "substrate_course_4" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 46.61s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substrate_course_4-d01d5b4b7384e9bb)
[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" "748b11d6479e7a08669917d5225a359ef14a94d616e0bb454230f6ef3a367abd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "748b11d6479e7a08669917d5225a359ef14a94d616e0bb454230f6ef3a367abd", kill_on_drop: false }`
[INFO] [stdout] 748b11d6479e7a08669917d5225a359ef14a94d616e0bb454230f6ef3a367abd