[INFO] fetching crate rato 0.1.2...
[INFO] testing rato-0.1.2 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rato 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate rato 0.1.2
[INFO] finished tweaking crates.io crate rato 0.1.2
[INFO] tweaked toml for crates.io crate rato 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rato 0.1.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding hashbrown v0.1.8 (available: v0.17.0)
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.29)
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3efec4e27cde44b55b721abfc65925506d8f5d76eee468870452a28c8eecc15b
[INFO] running `Command { std: "docker" "start" "-a" "3efec4e27cde44b55b721abfc65925506d8f5d76eee468870452a28c8eecc15b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3efec4e27cde44b55b721abfc65925506d8f5d76eee468870452a28c8eecc15b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efec4e27cde44b55b721abfc65925506d8f5d76eee468870452a28c8eecc15b", kill_on_drop: false }`
[INFO] [stdout] 3efec4e27cde44b55b721abfc65925506d8f5d76eee468870452a28c8eecc15b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9d4358e8e2d21586de23f0b183317a987ff2f274a2307dcb69a44f59709e743b
[INFO] running `Command { std: "docker" "start" "-a" "9d4358e8e2d21586de23f0b183317a987ff2f274a2307dcb69a44f59709e743b", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.29
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling hashbrown v0.1.8
[INFO] [stderr]    Compiling rato v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rato.rs:414:17
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 (if let Err(e) = event_handler.on_cmd_flushdb(&db) {
[INFO] [stdout]     |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 420 |                 })
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 414 ~                 if let Err(e) = event_handler.on_cmd_flushdb(&db) {
[INFO] [stdout] 415 |                     format!("-ERR FLUSHDB Failed '{}'\r\n", e.to_string())
[INFO] [stdout] ...
[INFO] [stdout] 419 |                     b"+OK\r\n".to_vec()
[INFO] [stdout] 420 ~                 } 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rato.rs:423:17
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 (match args.len() {
[INFO] [stdout]     |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 443 |                 })
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 423 ~                 match args.len() {
[INFO] [stdout] 424 |                     1 => {
[INFO] [stdout] ...
[INFO] [stdout] 442 |                     _ => RedisUtil::invalid_num_args(&args[0]),
[INFO] [stdout] 443 ~                 } 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rato.rs:446:17
[INFO] [stdout]     |
[INFO] [stdout] 446 |                 (match args.len() {
[INFO] [stdout]     |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 472 |                 })
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 446 ~                 match args.len() {
[INFO] [stdout] 447 |                     1 => {
[INFO] [stdout] ...
[INFO] [stdout] 471 |                     _ => RedisUtil::invalid_num_args(&args[0]),
[INFO] [stdout] 472 ~                 } 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "9d4358e8e2d21586de23f0b183317a987ff2f274a2307dcb69a44f59709e743b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d4358e8e2d21586de23f0b183317a987ff2f274a2307dcb69a44f59709e743b", kill_on_drop: false }`
[INFO] [stdout] 9d4358e8e2d21586de23f0b183317a987ff2f274a2307dcb69a44f59709e743b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 742e51379cf27217afa657f6496eee94d866565e411db168dc385b40ce63e740
[INFO] running `Command { std: "docker" "start" "-a" "742e51379cf27217afa657f6496eee94d866565e411db168dc385b40ce63e740", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rato.rs:414:17
[INFO] [stdout]     |
[INFO] [stdout] 414 |                 (if let Err(e) = event_handler.on_cmd_flushdb(&db) {
[INFO] [stdout]     |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 420 |                 })
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 414 ~                 if let Err(e) = event_handler.on_cmd_flushdb(&db) {
[INFO] [stdout] 415 |                     format!("-ERR FLUSHDB Failed '{}'\r\n", e.to_string())
[INFO] [stdout] ...
[INFO] [stdout] 419 |                     b"+OK\r\n".to_vec()
[INFO] [stdout] 420 ~                 } 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rato.rs:423:17
[INFO] [stdout]     |
[INFO] [stdout] 423 |                 (match args.len() {
[INFO] [stdout]     |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 443 |                 })
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 423 ~                 match args.len() {
[INFO] [stdout] 424 |                     1 => {
[INFO] [stdout] ...
[INFO] [stdout] 442 |                     _ => RedisUtil::invalid_num_args(&args[0]),
[INFO] [stdout] 443 ~                 } 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/rato.rs:446:17
[INFO] [stdout]     |
[INFO] [stdout] 446 |                 (match args.len() {
[INFO] [stdout]     |                 ^
[INFO] [stdout] ...
[INFO] [stdout] 472 |                 })
[INFO] [stdout]     |                  ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 446 ~                 match args.len() {
[INFO] [stdout] 447 |                     1 => {
[INFO] [stdout] ...
[INFO] [stdout] 471 |                     _ => RedisUtil::invalid_num_args(&args[0]),
[INFO] [stdout] 472 ~                 } 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rato v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `env_logger`
[INFO] [stdout]   --> src/lib.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     extern crate env_logger;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rato` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "742e51379cf27217afa657f6496eee94d866565e411db168dc385b40ce63e740", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "742e51379cf27217afa657f6496eee94d866565e411db168dc385b40ce63e740", kill_on_drop: false }`
[INFO] [stdout] 742e51379cf27217afa657f6496eee94d866565e411db168dc385b40ce63e740
