[INFO] cloning repository https://github.com/wiirhan/rust-learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wiirhan/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwiirhan%2Frust-learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwiirhan%2Frust-learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2bab57bfb90aa580e55825defeb87417b0e9c511
[INFO] testing wiirhan/rust-learn against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwiirhan%2Frust-learn" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wiirhan/rust-learn on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wiirhan/rust-learn
[INFO] finished tweaking git repo https://github.com/wiirhan/rust-learn
[INFO] tweaked toml for git repo https://github.com/wiirhan/rust-learn written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/wiirhan/rust-learn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d37cde59eb848833ffcd2749a3888617bf069a067762e5d89429a57d39596194
[INFO] running `Command { std: "docker" "start" "-a" "d37cde59eb848833ffcd2749a3888617bf069a067762e5d89429a57d39596194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d37cde59eb848833ffcd2749a3888617bf069a067762e5d89429a57d39596194", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37cde59eb848833ffcd2749a3888617bf069a067762e5d89429a57d39596194", kill_on_drop: false }`
[INFO] [stdout] d37cde59eb848833ffcd2749a3888617bf069a067762e5d89429a57d39596194
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7449d7b29cc76feceef0fb9b382a70e250889eece788212d5a5f4701225b0597
[INFO] running `Command { std: "docker" "start" "-a" "7449d7b29cc76feceef0fb9b382a70e250889eece788212d5a5f4701225b0597", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `user2`
[INFO] [stdout]  --> src/structs.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let user2 = User {
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `back`
[INFO] [stdout]   --> src/structs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let back = Color(0, 0, 0);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_back`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]   --> src/structs.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let origin = Point(0, 0, 0);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subject`
[INFO] [stdout]   --> src/structs.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let subject = AlwaysEqual;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]   --> src/structs.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sign_in_count`
[INFO] [stdout]   --> src/structs.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     sign_in_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `active`
[INFO] [stdout]   --> src/structs.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     active: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/structs.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn width(&self) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.79s
[INFO] running `Command { std: "docker" "inspect" "7449d7b29cc76feceef0fb9b382a70e250889eece788212d5a5f4701225b0597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7449d7b29cc76feceef0fb9b382a70e250889eece788212d5a5f4701225b0597", kill_on_drop: false }`
[INFO] [stdout] 7449d7b29cc76feceef0fb9b382a70e250889eece788212d5a5f4701225b0597
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0465d5cf8369b91db6bdd3a30a696eabcb8bccb6b80341832740858319a0bd2
[INFO] running `Command { std: "docker" "start" "-a" "c0465d5cf8369b91db6bdd3a30a696eabcb8bccb6b80341832740858319a0bd2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `user2`
[INFO] [stdout]  --> src/structs.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let user2 = User {
[INFO] [stdout]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `back`
[INFO] [stdout]   --> src/structs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let back = Color(0, 0, 0);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_back`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `origin`
[INFO] [stdout]   --> src/structs.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let origin = Point(0, 0, 0);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `subject`
[INFO] [stdout]   --> src/structs.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let subject = AlwaysEqual;
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `email`
[INFO] [stdout]   --> src/structs.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sign_in_count`
[INFO] [stdout]   --> src/structs.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     sign_in_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `active`
[INFO] [stdout]   --> src/structs.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     active: bool,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `width`
[INFO] [stdout]   --> src/structs.rs:83:8
[INFO] [stdout]    |
[INFO] [stdout] 83 |     fn width(&self) -> bool {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learn-e09a2707825e1e20)
[INFO] running `Command { std: "docker" "inspect" "c0465d5cf8369b91db6bdd3a30a696eabcb8bccb6b80341832740858319a0bd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0465d5cf8369b91db6bdd3a30a696eabcb8bccb6b80341832740858319a0bd2", kill_on_drop: false }`
[INFO] [stdout] c0465d5cf8369b91db6bdd3a30a696eabcb8bccb6b80341832740858319a0bd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b8455c06aa32bc45c953d45831445ea7b0a3f5f0824192e773002e8693e7cd1b
[INFO] running `Command { std: "docker" "start" "-a" "b8455c06aa32bc45c953d45831445ea7b0a3f5f0824192e773002e8693e7cd1b", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `user2`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/structs.rs:9:9
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 9 |     let user2 = User {
[INFO] [stdout] 
[INFO] [stderr]   |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_user2`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `back`
[INFO] [stderr]   --> src/structs.rs:19:9
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let back = Color(0, 0, 0);
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_back`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `origin`
[INFO] [stderr]   --> src/structs.rs:20:9
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let origin = Point(0, 0, 0);
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_origin`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `subject`
[INFO] [stderr]   --> src/structs.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let subject = AlwaysEqual;
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_subject`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `email`
[INFO] [stderr]   --> src/structs.rs:32:5
[INFO] [stderr]    |
[INFO] [stderr] 32 |     email: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `sign_in_count`
[INFO] [stderr]   --> src/structs.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     sign_in_count: u64,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `active`
[INFO] [stderr]   --> src/structs.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     active: bool,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `width`
[INFO] [stderr]   --> src/structs.rs:83:8
[INFO] [stderr]    |
[INFO] [stderr] 83 |     fn width(&self) -> bool {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-learn` (bin "rust-learn" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_learn-e09a2707825e1e20)
[INFO] running `Command { std: "docker" "inspect" "b8455c06aa32bc45c953d45831445ea7b0a3f5f0824192e773002e8693e7cd1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8455c06aa32bc45c953d45831445ea7b0a3f5f0824192e773002e8693e7cd1b", kill_on_drop: false }`
[INFO] [stdout] b8455c06aa32bc45c953d45831445ea7b0a3f5f0824192e773002e8693e7cd1b