[INFO] cloning repository https://github.com/thenasim/rust-from-rust-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thenasim/rust-from-rust-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2e5ca0581f4d1eafd6f6923e29464337e51e9f7c
[INFO] testing thenasim/rust-from-rust-book against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenasim%2Frust-from-rust-book" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thenasim/rust-from-rust-book on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thenasim/rust-from-rust-book
[INFO] finished tweaking git repo https://github.com/thenasim/rust-from-rust-book
[INFO] tweaked toml for git repo https://github.com/thenasim/rust-from-rust-book written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/thenasim/rust-from-rust-book already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7353730c44706dcdd839be18fc09dbad838420761c7e38b3b63980c696f695e7
[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" "7353730c44706dcdd839be18fc09dbad838420761c7e38b3b63980c696f695e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7353730c44706dcdd839be18fc09dbad838420761c7e38b3b63980c696f695e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7353730c44706dcdd839be18fc09dbad838420761c7e38b3b63980c696f695e7", kill_on_drop: false }`
[INFO] [stdout] 7353730c44706dcdd839be18fc09dbad838420761c7e38b3b63980c696f695e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ae19a4434f2c0bea1092fe6ce8d6635a046daf88abb7d2eb57a57328ce4823e
[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" "9ae19a4434f2c0bea1092fe6ce8d6635a046daf88abb7d2eb57a57328ce4823e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enums.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |   let some_number = Some(5);
[INFO] [stdout]    |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `absent_number`
[INFO] [stdout]   --> src/enums.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |   let absent_number: Option<i32> = None;
[INFO] [stdout]    |       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]   --> src/enums.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   Quit,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]   --> src/enums.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   Move { x: i32, y: i32 },
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]   --> src/enums.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   ChangeColor(i32, i32, i32),
[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 1.73s
[INFO] running `Command { std: "docker" "inspect" "9ae19a4434f2c0bea1092fe6ce8d6635a046daf88abb7d2eb57a57328ce4823e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ae19a4434f2c0bea1092fe6ce8d6635a046daf88abb7d2eb57a57328ce4823e", kill_on_drop: false }`
[INFO] [stdout] 9ae19a4434f2c0bea1092fe6ce8d6635a046daf88abb7d2eb57a57328ce4823e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 195a5ed7e95a6a8594928931d7161268fadb3a5ec38cbdafa5b801a10a5cc5cd
[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" "195a5ed7e95a6a8594928931d7161268fadb3a5ec38cbdafa5b801a10a5cc5cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `some_number`
[INFO] [stdout]   --> src/enums.rs:45:7
[INFO] [stdout]    |
[INFO] [stdout] 45 |   let some_number = Some(5);
[INFO] [stdout]    |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `absent_number`
[INFO] [stdout]   --> src/enums.rs:46:7
[INFO] [stdout]    |
[INFO] [stdout] 46 |   let absent_number: Option<i32> = None;
[INFO] [stdout]    |       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Quit`
[INFO] [stdout]   --> src/enums.rs:18:3
[INFO] [stdout]    |
[INFO] [stdout] 18 |   Quit,
[INFO] [stdout]    |   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Move`
[INFO] [stdout]   --> src/enums.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |   Move { x: i32, y: i32 },
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `ChangeColor`
[INFO] [stdout]   --> src/enums.rs:21:3
[INFO] [stdout]    |
[INFO] [stdout] 21 |   ChangeColor(i32, i32, i32),
[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 0.84s
[INFO] running `Command { std: "docker" "inspect" "195a5ed7e95a6a8594928931d7161268fadb3a5ec38cbdafa5b801a10a5cc5cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "195a5ed7e95a6a8594928931d7161268fadb3a5ec38cbdafa5b801a10a5cc5cd", kill_on_drop: false }`
[INFO] [stdout] 195a5ed7e95a6a8594928931d7161268fadb3a5ec38cbdafa5b801a10a5cc5cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b2263af6a950385841d443d0a45583dc44fdb98b8cc459dd0f7e793e4faf7bc8
[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" "b2263af6a950385841d443d0a45583dc44fdb98b8cc459dd0f7e793e4faf7bc8", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `some_number`
[INFO] [stderr]   --> src/enums.rs:45:7
[INFO] [stderr]    |
[INFO] [stderr] 45 |   let some_number = Some(5);
[INFO] [stderr]    |       ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_some_number`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `absent_number`
[INFO] [stderr]   --> src/enums.rs:46:7
[INFO] [stderr]    |
[INFO] [stderr] 46 |   let absent_number: Option<i32> = None;
[INFO] [stderr]    |       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_absent_number`
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Quit`
[INFO] [stderr]   --> src/enums.rs:18:3
[INFO] [stderr]    |
[INFO] [stderr] 18 |   Quit,
[INFO] [stderr]    |   ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Move`
[INFO] [stderr]   --> src/enums.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |   Move { x: i32, y: i32 },
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `ChangeColor`
[INFO] [stderr]   --> src/enums.rs:21:3
[INFO] [stderr]    |
[INFO] [stderr] 21 |   ChangeColor(i32, i32, i32),
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-book` (bin "rust-book" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_book-d2be5c2114806abf)
[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" "b2263af6a950385841d443d0a45583dc44fdb98b8cc459dd0f7e793e4faf7bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2263af6a950385841d443d0a45583dc44fdb98b8cc459dd0f7e793e4faf7bc8", kill_on_drop: false }`
[INFO] [stdout] b2263af6a950385841d443d0a45583dc44fdb98b8cc459dd0f7e793e4faf7bc8