[INFO] cloning repository https://github.com/haolipeng/rust_everyday_practise
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haolipeng/rust_everyday_practise" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaolipeng%2Frust_everyday_practise", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaolipeng%2Frust_everyday_practise'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 30d8bf514008c0313c50d02ad299ae711bfd36ec
[INFO] testing haolipeng/rust_everyday_practise against beta-2026-04-21 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaolipeng%2Frust_everyday_practise" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/haolipeng/rust_everyday_practise
[INFO] finished tweaking git repo https://github.com/haolipeng/rust_everyday_practise
[INFO] tweaked toml for git repo https://github.com/haolipeng/rust_everyday_practise written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/haolipeng/rust_everyday_practise on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/haolipeng/rust_everyday_practise 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-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 531c8e834c43a3aa4e953705762b2f0167474834bf036f0842fe5234e9818e2b
[INFO] running `Command { std: "docker" "start" "-a" "531c8e834c43a3aa4e953705762b2f0167474834bf036f0842fe5234e9818e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "531c8e834c43a3aa4e953705762b2f0167474834bf036f0842fe5234e9818e2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "531c8e834c43a3aa4e953705762b2f0167474834bf036f0842fe5234e9818e2b", kill_on_drop: false }`
[INFO] [stdout] 531c8e834c43a3aa4e953705762b2f0167474834bf036f0842fe5234e9818e2b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f5973051447a949e4ebf3497d7c77cdc2fb4e537729ae35906581b033e3c851b
[INFO] running `Command { std: "docker" "start" "-a" "f5973051447a949e4ebf3497d7c77cdc2fb4e537729ae35906581b033e3c851b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling pin-project-lite v0.2.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling futures-sink v0.3.32
[INFO] [stderr]    Compiling futures-core v0.3.32
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling cfg-if v1.0.4
[INFO] [stderr]    Compiling futures-io v0.3.32
[INFO] [stderr]    Compiling futures-task v0.3.32
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling slab v0.4.12
[INFO] [stderr]    Compiling bytes v1.11.1
[INFO] [stderr]    Compiling lesson7-closure v0.1.0 (/opt/rustwide/workdir/lesson8-closure)
[INFO] [stderr]    Compiling borrow_demo v0.1.0 (/opt/rustwide/workdir/lesson1-borrow-basic)
[INFO] [stderr]    Compiling lesson8-iterator v0.1.0 (/opt/rustwide/workdir/lesson9-iterator)
[INFO] [stderr]    Compiling lesson9-module v0.1.0 (/opt/rustwide/workdir/lesson10-module)
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling futures-channel v0.3.32
[INFO] [stderr]    Compiling error_and_collections v0.1.0 (/opt/rustwide/workdir/lesson6-error-and-collections)
[INFO] [stderr]    Compiling lesson5-trait v0.1.0 (/opt/rustwide/workdir/lesson5-trait)
[INFO] [stderr]    Compiling lesson3-struct-enum-option-result v0.1.0 (/opt/rustwide/workdir/lesson3-struct-enum-option-result)
[INFO] [stderr]    Compiling lesson4-pattern_match v0.1.0 (/opt/rustwide/workdir/lesson4-pattern_match)
[INFO] [stderr]    Compiling borrow_lifecycle v0.1.0 (/opt/rustwide/workdir/lesson2-borrow-lifecycle)
[INFO] [stdout] warning: variants `Down`, `Left`, and `Right` are never constructed
[INFO] [stdout]  --> lesson3-struct-enum-option-result/src/enum_basics.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Direction {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 3 |     Up,
[INFO] [stdout] 4 |     Down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling errno v0.3.14
[INFO] [stderr]    Compiling mio v1.1.1
[INFO] [stderr]    Compiling socket2 v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.8
[INFO] [stderr]    Compiling futures-macro v0.3.32
[INFO] [stderr]    Compiling tokio-macros v2.6.1
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]    Compiling tokio v1.50.0
[INFO] [stderr]    Compiling futures-util v0.3.32
[INFO] [stderr]    Compiling futures-executor v0.3.32
[INFO] [stderr]    Compiling futures v0.3.32
[INFO] [stderr]    Compiling lesson11-stream-analyzer v0.1.0 (/opt/rustwide/workdir/lesson11-stream-analyzer)
[INFO] [stderr]    Compiling lesson6-async v0.1.0 (/opt/rustwide/workdir/lesson7-async)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.19s
[INFO] running `Command { std: "docker" "inspect" "f5973051447a949e4ebf3497d7c77cdc2fb4e537729ae35906581b033e3c851b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5973051447a949e4ebf3497d7c77cdc2fb4e537729ae35906581b033e3c851b", kill_on_drop: false }`
[INFO] [stdout] f5973051447a949e4ebf3497d7c77cdc2fb4e537729ae35906581b033e3c851b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a09c7c29e277892f2083f4a011fa26ec696561917fa0a868d17f3d1a6b43f21
[INFO] running `Command { std: "docker" "start" "-a" "8a09c7c29e277892f2083f4a011fa26ec696561917fa0a868d17f3d1a6b43f21", kill_on_drop: false }`
[INFO] [stderr]    Compiling lesson7-closure v0.1.0 (/opt/rustwide/workdir/lesson8-closure)
[INFO] [stderr]    Compiling borrow_demo v0.1.0 (/opt/rustwide/workdir/lesson1-borrow-basic)
[INFO] [stderr]    Compiling lesson3-struct-enum-option-result v0.1.0 (/opt/rustwide/workdir/lesson3-struct-enum-option-result)
[INFO] [stderr]    Compiling lesson9-module v0.1.0 (/opt/rustwide/workdir/lesson10-module)
[INFO] [stderr]    Compiling borrow_lifecycle v0.1.0 (/opt/rustwide/workdir/lesson2-borrow-lifecycle)
[INFO] [stderr]    Compiling error_and_collections v0.1.0 (/opt/rustwide/workdir/lesson6-error-and-collections)
[INFO] [stderr]    Compiling lesson4-pattern_match v0.1.0 (/opt/rustwide/workdir/lesson4-pattern_match)
[INFO] [stderr]    Compiling lesson5-trait v0.1.0 (/opt/rustwide/workdir/lesson5-trait)
[INFO] [stderr]    Compiling lesson8-iterator v0.1.0 (/opt/rustwide/workdir/lesson9-iterator)
[INFO] [stderr]    Compiling lesson6-async v0.1.0 (/opt/rustwide/workdir/lesson7-async)
[INFO] [stderr]    Compiling lesson11-stream-analyzer v0.1.0 (/opt/rustwide/workdir/lesson11-stream-analyzer)
[INFO] [stdout] warning: variants `Down`, `Left`, and `Right` are never constructed
[INFO] [stdout]  --> lesson3-struct-enum-option-result/src/enum_basics.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum Direction {
[INFO] [stdout]   |      --------- variants in this enum
[INFO] [stdout] 3 |     Up,
[INFO] [stdout] 4 |     Down,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 5 |     Left,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 6 |     Right,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "8a09c7c29e277892f2083f4a011fa26ec696561917fa0a868d17f3d1a6b43f21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a09c7c29e277892f2083f4a011fa26ec696561917fa0a868d17f3d1a6b43f21", kill_on_drop: false }`
[INFO] [stdout] 8a09c7c29e277892f2083f4a011fa26ec696561917fa0a868d17f3d1a6b43f21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05ac6425ab604989f470472d1290af7eb3dcd64d16113f25201e88590309f02c
[INFO] running `Command { std: "docker" "start" "-a" "05ac6425ab604989f470472d1290af7eb3dcd64d16113f25201e88590309f02c", kill_on_drop: false }`
[INFO] [stderr] warning: variants `Down`, `Left`, and `Right` are never constructed
[INFO] [stderr]  --> lesson3-struct-enum-option-result/src/enum_basics.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum Direction {
[INFO] [stderr]   |      --------- variants in this enum
[INFO] [stderr] 3 |     Up,
[INFO] [stderr] 4 |     Down,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 5 |     Left,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 6 |     Right,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `lesson3-struct-enum-option-result` (bin "lesson3-struct-enum-option-result" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/borrow_demo-79b20007c869428a)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/borrow_lifecycle-be752ff80bd7a48f)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/error_and_collections-6d214e8611aee36a)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson11_stream_analyzer-ade5ab3ef368f1be)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson3_struct_enum_option_result-17c79b643e591082)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson4_pattern_match-2ab2691bfc4bddac)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson5_trait-8995f1599a49ffc1)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson6_async-1d9e5b175c682571)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson7_closure-69ee128a9ef5ea80)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson8_iterator-cd4ec4d1e23e3f6d)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lesson9_module-9ee9b5adde7a0e19)
[INFO] [stdout] 
[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" "05ac6425ab604989f470472d1290af7eb3dcd64d16113f25201e88590309f02c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ac6425ab604989f470472d1290af7eb3dcd64d16113f25201e88590309f02c", kill_on_drop: false }`
[INFO] [stdout] 05ac6425ab604989f470472d1290af7eb3dcd64d16113f25201e88590309f02c
