[INFO] cloning repository https://github.com/DanielHe4rt/twitter-scylladb-rust-university
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DanielHe4rt/twitter-scylladb-rust-university" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielHe4rt%2Ftwitter-scylladb-rust-university", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielHe4rt%2Ftwitter-scylladb-rust-university'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dea1cc399b9f77172437d5a498c4f573d9ad0dfe
[INFO] testing DanielHe4rt/twitter-scylladb-rust-university against beta-2026-03-05 for beta-1.95-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDanielHe4rt%2Ftwitter-scylladb-rust-university" "/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/DanielHe4rt/twitter-scylladb-rust-university
[INFO] finished tweaking git repo https://github.com/DanielHe4rt/twitter-scylladb-rust-university
[INFO] tweaked toml for git repo https://github.com/DanielHe4rt/twitter-scylladb-rust-university written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DanielHe4rt/twitter-scylladb-rust-university on toolchain beta-2026-03-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DanielHe4rt/twitter-scylladb-rust-university 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-2026-03-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c76d466930e57b414cb5681f8208f48579cdec6e91b90f42e5e8a64a85be97d
[INFO] running `Command { std: "docker" "start" "-a" "4c76d466930e57b414cb5681f8208f48579cdec6e91b90f42e5e8a64a85be97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c76d466930e57b414cb5681f8208f48579cdec6e91b90f42e5e8a64a85be97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c76d466930e57b414cb5681f8208f48579cdec6e91b90f42e5e8a64a85be97d", kill_on_drop: false }`
[INFO] [stdout] 4c76d466930e57b414cb5681f8208f48579cdec6e91b90f42e5e8a64a85be97d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-03-05" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5d72043821869c6e2a04e391b2531995998e73610ed488099304043e53eccf30
[INFO] running `Command { std: "docker" "start" "-a" "5d72043821869c6e2a04e391b2531995998e73610ed488099304043e53eccf30", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling serde v1.0.200
[INFO] [stderr]    Compiling snap v1.1.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling thiserror v1.0.59
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling lz4_flex v0.11.3
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling either v1.11.0
[INFO] [stderr]    Compiling rustversion v1.0.15
[INFO] [stderr]    Compiling bigdecimal v0.4.3
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling histogram v0.6.9
[INFO] [stderr]    Compiling arc-swap v1.7.1
[INFO] [stderr]    Compiling serde_json v1.0.116
[INFO] [stderr]    Compiling itertools v0.11.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling zeroize v1.7.0
[INFO] [stderr]    Compiling atomic v0.5.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling time v0.3.36
[INFO] [stderr]    Compiling strum v0.26.2
[INFO] [stderr]    Compiling secrecy v0.7.0
[INFO] [stderr]    Compiling walkdir v2.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.7.2
[INFO] [stderr]    Compiling anyhow v1.0.82
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling deunicode v1.4.4
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling mio v0.8.11
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling uuid v1.8.0
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.3.1
[INFO] [stderr]    Compiling dashmap v5.5.3
[INFO] [stderr]    Compiling flate2 v1.0.30
[INFO] [stderr]    Compiling crossbeam-channel v0.5.13
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling hdrhistogram v7.5.4
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling env_logger v0.10.2
[INFO] [stderr]    Compiling pretty_env_logger v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.200
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.59
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling async-trait v0.1.80
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling strum_macros v0.26.2
[INFO] [stderr]    Compiling tokio v1.37.0
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]    Compiling scylla-macros v0.5.0
[INFO] [stderr]    Compiling dummy v0.7.0
[INFO] [stderr]    Compiling fake v2.9.2
[INFO] [stderr]    Compiling futures-executor v0.3.30
[INFO] [stderr]    Compiling futures v0.3.30
[INFO] [stderr]    Compiling scylla-cql v0.2.0
[INFO] [stderr]    Compiling anyerror v0.1.12
[INFO] [stderr]    Compiling scylla v0.13.0
[INFO] [stderr]    Compiling charybdis_parser v0.7.0
[INFO] [stderr]    Compiling charybdis_macros v0.7.0
[INFO] [stderr]    Compiling charybdis v0.7.0
[INFO] [stderr]    Compiling step-1 v0.1.0 (/opt/rustwide/workdir/lessons/step1)
[INFO] [stderr]    Compiling step-2 v0.1.0 (/opt/rustwide/workdir/lessons/step2)
[INFO] [stderr]    Compiling step-6 v0.1.0 (/opt/rustwide/workdir/lessons/step6)
[INFO] [stderr]    Compiling step-4 v0.1.0 (/opt/rustwide/workdir/lessons/step4)
[INFO] [stderr]    Compiling step-3 v0.1.0 (/opt/rustwide/workdir/lessons/step3)
[INFO] [stderr]    Compiling step-7 v0.1.0 (/opt/rustwide/workdir/lessons/step7)
[INFO] [stderr]    Compiling step-5 v0.1.0 (/opt/rustwide/workdir/lessons/step5)
[INFO] [stdout] warning: unused import: `std::fmt::format`
[INFO] [stdout]  --> lessons/step2/src/workers/ingestion.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::format;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scylla::statement::Consistency`
[INFO] [stdout]  --> lessons/step6/src/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use scylla::statement::Consistency;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scylla::statement::Consistency`
[INFO] [stdout]  --> lessons/step7/src/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use scylla::statement::Consistency;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ExecutionProfile`
[INFO] [stdout]  --> lessons/step5/src/connection.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use scylla::{ExecutionProfile, Session, SessionBuilder};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scylla::load_balancing::DefaultPolicy`
[INFO] [stdout]  --> lessons/step5/src/connection.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use scylla::load_balancing::DefaultPolicy;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scylla::statement::Consistency`
[INFO] [stdout]  --> lessons/step5/src/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use scylla::statement::Consistency;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `step-7` (bin "step-7"); 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/beta-2026-03-05-x86_64-unknown-linux-gnu/bin/rustc --crate-name step_7 --edition=2021 lessons/step7/src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=d7d76a06ea2a0705 -C extra-filename=-a2825672df873749 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyerror=/opt/rustwide/target/debug/deps/libanyerror-6575a400df959c92.rlib --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-e2f0fd8abea51116.rlib --extern charybdis=/opt/rustwide/target/debug/deps/libcharybdis-cf4522d0000a7321.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-90fd4f63b73f08c2.rlib --extern dotenvy=/opt/rustwide/target/debug/deps/libdotenvy-6d8015f91495fe74.rlib --extern fake=/opt/rustwide/target/debug/deps/libfake-686d64ecfea37f3a.rlib --extern hdrhistogram=/opt/rustwide/target/debug/deps/libhdrhistogram-bc26de6a1bd15a24.rlib --extern humantime=/opt/rustwide/target/debug/deps/libhumantime-9f900d7885b5087e.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-1ad4a80b9627ed31.rlib --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-bebd5690ff3733f1.rlib --extern rand=/opt/rustwide/target/debug/deps/librand-c716ecf780f91c38.rlib --extern scylla=/opt/rustwide/target/debug/deps/libscylla-d0c3a141d26f8d21.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-0bc1db5ba00ea63f.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-bd3e806bf4fe52a5.rlib --extern uuid=/opt/rustwide/target/debug/deps/libuuid-7e74eb19cedc5f9d.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5d72043821869c6e2a04e391b2531995998e73610ed488099304043e53eccf30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d72043821869c6e2a04e391b2531995998e73610ed488099304043e53eccf30", kill_on_drop: false }`
[INFO] [stdout] 5d72043821869c6e2a04e391b2531995998e73610ed488099304043e53eccf30
