[INFO] cloning repository https://github.com/vantezzen/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vantezzen/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvantezzen%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvantezzen%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1fd6e7738860e00a07fc438b710d1c6b034675d8
[INFO] testing vantezzen/learn-rust against beta-2025-09-21 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvantezzen%2Flearn-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/vantezzen/learn-rust
[INFO] finished tweaking git repo https://github.com/vantezzen/learn-rust
[INFO] tweaked toml for git repo https://github.com/vantezzen/learn-rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/vantezzen/learn-rust on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/vantezzen/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d0d99b3d0db062d27f85a021bf2f39809d1cad74b0ea3e0b8bd06f11cc35eed5
[INFO] running `Command { std: "docker" "start" "-a" "d0d99b3d0db062d27f85a021bf2f39809d1cad74b0ea3e0b8bd06f11cc35eed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d0d99b3d0db062d27f85a021bf2f39809d1cad74b0ea3e0b8bd06f11cc35eed5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0d99b3d0db062d27f85a021bf2f39809d1cad74b0ea3e0b8bd06f11cc35eed5", kill_on_drop: false }`
[INFO] [stdout] d0d99b3d0db062d27f85a021bf2f39809d1cad74b0ea3e0b8bd06f11cc35eed5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e97fdace93108a577ee482f71a1976441125a50149e499922194246a92a92e5e
[INFO] running `Command { std: "docker" "start" "-a" "e97fdace93108a577ee482f71a1976441125a50149e499922194246a92a92e5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `points`
[INFO] [stdout]   --> src/matches.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let points = match dice_roll {
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_points`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> src/collections.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Some(num) => (),
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_layer` and `second_layer` are never read
[INFO] [stdout]   --> src/enums.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Layered {
[INFO] [stdout]    |   ------- fields in this variant
[INFO] [stdout] 11 |     first_layer: Filling,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 12 |     second_layer: Filling,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Filled` is never constructed
[INFO] [stdout]  --> src/enums.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Cookie {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |   Filled(Filling),
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MinutesUntilEvent`, `SomeOther`, and `Messages` are never constructed
[INFO] [stdout]  --> src/matches.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |   enum Message {
[INFO] [stdout]   |        ------- variants in this enum
[INFO] [stdout] 4 |     Hello,
[INFO] [stdout] 5 |     MinutesUntilEvent(u32),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     SomeOther,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 7 |     Messages,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/collections.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Text(String),
[INFO] [stdout]    |     ---- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 40 -     Text(String),
[INFO] [stdout] 40 +     Text(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Number` is never constructed
[INFO] [stdout]   --> src/collections.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |   enum VecValue {
[INFO] [stdout]    |        -------- variant in this enum
[INFO] [stdout] 40 |     Text(String),
[INFO] [stdout] 41 |     Number(i32),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e97fdace93108a577ee482f71a1976441125a50149e499922194246a92a92e5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e97fdace93108a577ee482f71a1976441125a50149e499922194246a92a92e5e", kill_on_drop: false }`
[INFO] [stdout] e97fdace93108a577ee482f71a1976441125a50149e499922194246a92a92e5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2b0df6b41d28e343870f09921ba80f0802973ee24271a1676f5a5680eeee7c7
[INFO] running `Command { std: "docker" "start" "-a" "f2b0df6b41d28e343870f09921ba80f0802973ee24271a1676f5a5680eeee7c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `points`
[INFO] [stdout]   --> src/matches.rs:38:7
[INFO] [stdout]    |
[INFO] [stdout] 38 |   let points = match dice_roll {
[INFO] [stdout]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_points`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `num`
[INFO] [stdout]   --> src/collections.rs:24:10
[INFO] [stdout]    |
[INFO] [stdout] 24 |     Some(num) => (),
[INFO] [stdout]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `first_layer` and `second_layer` are never read
[INFO] [stdout]   --> src/enums.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Layered {
[INFO] [stdout]    |   ------- fields in this variant
[INFO] [stdout] 11 |     first_layer: Filling,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 12 |     second_layer: Filling,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Filled` is never constructed
[INFO] [stdout]  --> src/enums.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Cookie {
[INFO] [stdout]   |      ------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 7 |   Filled(Filling),
[INFO] [stdout]   |   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `MinutesUntilEvent`, `SomeOther`, and `Messages` are never constructed
[INFO] [stdout]  --> src/matches.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |   enum Message {
[INFO] [stdout]   |        ------- variants in this enum
[INFO] [stdout] 4 |     Hello,
[INFO] [stdout] 5 |     MinutesUntilEvent(u32),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 6 |     SomeOther,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 7 |     Messages,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/collections.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 |     Text(String),
[INFO] [stdout]    |     ---- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 40 -     Text(String),
[INFO] [stdout] 40 +     Text(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Number` is never constructed
[INFO] [stdout]   --> src/collections.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 39 |   enum VecValue {
[INFO] [stdout]    |        -------- variant in this enum
[INFO] [stdout] 40 |     Text(String),
[INFO] [stdout] 41 |     Number(i32),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "f2b0df6b41d28e343870f09921ba80f0802973ee24271a1676f5a5680eeee7c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b0df6b41d28e343870f09921ba80f0802973ee24271a1676f5a5680eeee7c7", kill_on_drop: false }`
[INFO] [stdout] f2b0df6b41d28e343870f09921ba80f0802973ee24271a1676f5a5680eeee7c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 363ba71baa11254c64ec730ad3b08a6d6e8d1e350c9272de00cebd6d13d83b48
[INFO] running `Command { std: "docker" "start" "-a" "363ba71baa11254c64ec730ad3b08a6d6e8d1e350c9272de00cebd6d13d83b48", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `points`
[INFO] [stderr]   --> src/matches.rs:38:7
[INFO] [stderr]    |
[INFO] [stderr] 38 |   let points = match dice_roll {
[INFO] [stderr]    |       ^^^^^^ help: if this is intentional, prefix it with an underscore: `_points`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `num`
[INFO] [stderr]   --> src/collections.rs:24:10
[INFO] [stderr]    |
[INFO] [stderr] 24 |     Some(num) => (),
[INFO] [stderr]    |          ^^^ help: if this is intentional, prefix it with an underscore: `_num`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `first_layer` and `second_layer` are never read
[INFO] [stderr]   --> src/enums.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |   Layered {
[INFO] [stderr]    |   ------- fields in this variant
[INFO] [stderr] 11 |     first_layer: Filling,
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 12 |     second_layer: Filling,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Filled` is never constructed
[INFO] [stderr]  --> src/enums.rs:7:3
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum Cookie {
[INFO] [stderr]   |      ------ variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 7 |   Filled(Filling),
[INFO] [stderr]   |   ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variants `MinutesUntilEvent`, `SomeOther`, and `Messages` are never constructed
[INFO] [stderr]  --> src/matches.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |   enum Message {
[INFO] [stderr]   |        ------- variants in this enum
[INFO] [stderr] 4 |     Hello,
[INFO] [stderr] 5 |     MinutesUntilEvent(u32),
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 6 |     SomeOther,
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 7 |     Messages,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/collections.rs:40:10
[INFO] [stderr]    |
[INFO] [stderr] 40 |     Text(String),
[INFO] [stderr]    |     ---- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 40 -     Text(String),
[INFO] [stderr] 40 +     Text(()),
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: variant `Number` is never constructed
[INFO] [stderr]   --> src/collections.rs:41:5
[INFO] [stderr]    |
[INFO] [stderr] 39 |   enum VecValue {
[INFO] [stderr]    |        -------- variant in this enum
[INFO] [stderr] 40 |     Text(String),
[INFO] [stderr] 41 |     Number(i32),
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learn-rust` (bin "learn-rust" test) generated 7 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learn_rust-7e3a08687006a432)
[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" "363ba71baa11254c64ec730ad3b08a6d6e8d1e350c9272de00cebd6d13d83b48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "363ba71baa11254c64ec730ad3b08a6d6e8d1e350c9272de00cebd6d13d83b48", kill_on_drop: false }`
[INFO] [stdout] 363ba71baa11254c64ec730ad3b08a6d6e8d1e350c9272de00cebd6d13d83b48