[INFO] fetching crate wordtop 0.1.6...
[INFO] testing wordtop-0.1.6 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate wordtop 0.1.6 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate wordtop 0.1.6
[INFO] finished tweaking crates.io crate wordtop 0.1.6
[INFO] tweaked toml for crates.io crate wordtop 0.1.6 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wordtop 0.1.6 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate wordtop 0.1.6 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4eb37929f9f6bc353785ef97834af148cf33e10c864f1679a2351507ad5c57a
[INFO] running `Command { std: "docker" "start" "-a" "b4eb37929f9f6bc353785ef97834af148cf33e10c864f1679a2351507ad5c57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4eb37929f9f6bc353785ef97834af148cf33e10c864f1679a2351507ad5c57a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4eb37929f9f6bc353785ef97834af148cf33e10c864f1679a2351507ad5c57a", kill_on_drop: false }`
[INFO] [stdout] b4eb37929f9f6bc353785ef97834af148cf33e10c864f1679a2351507ad5c57a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5a9aabee0d261f5db0ba6d93af7843981b2047f7b06b73e77e83a72c72ec149
[INFO] running `Command { std: "docker" "start" "-a" "a5a9aabee0d261f5db0ba6d93af7843981b2047f7b06b73e77e83a72c72ec149", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling nix v0.23.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling ctrlc v3.2.1
[INFO] [stderr]    Compiling wordtop v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]   --> src/print.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 count = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.29s
[INFO] running `Command { std: "docker" "inspect" "a5a9aabee0d261f5db0ba6d93af7843981b2047f7b06b73e77e83a72c72ec149", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a9aabee0d261f5db0ba6d93af7843981b2047f7b06b73e77e83a72c72ec149", kill_on_drop: false }`
[INFO] [stdout] a5a9aabee0d261f5db0ba6d93af7843981b2047f7b06b73e77e83a72c72ec149
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd077f78c4f5547e56c4838230ef493be1b3bcd22b3bbc459c7f2cdaad12dc1e
[INFO] running `Command { std: "docker" "start" "-a" "cd077f78c4f5547e56c4838230ef493be1b3bcd22b3bbc459c7f2cdaad12dc1e", kill_on_drop: false }`
[INFO] [stderr]    Compiling wordtop v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `count` is never read
[INFO] [stdout]   --> src/print.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |                 count = 0;
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/print.rs:76:14
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stdout]    |              ----^
[INFO] [stdout]    |              |
[INFO] [stdout]    |              help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/print.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stdout]    |                     ----^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/print.rs:76:14
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stdout]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]   --> src/print.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "cd077f78c4f5547e56c4838230ef493be1b3bcd22b3bbc459c7f2cdaad12dc1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd077f78c4f5547e56c4838230ef493be1b3bcd22b3bbc459c7f2cdaad12dc1e", kill_on_drop: false }`
[INFO] [stdout] cd077f78c4f5547e56c4838230ef493be1b3bcd22b3bbc459c7f2cdaad12dc1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 24397d3eabf3afe3d606e6a931903fb539efd2de6e1152ee112081fa62e40cb9
[INFO] running `Command { std: "docker" "start" "-a" "24397d3eabf3afe3d606e6a931903fb539efd2de6e1152ee112081fa62e40cb9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test print::tests::test_print_stats ... ok
[INFO] [stdout] test calculate::tests::test_calculate_rate ... ok
[INFO] [stdout] test calculate::tests::test_calculate_rate_top ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: value assigned to `count` is never read
[INFO] [stderr]   --> src/print.rs:21:17
[INFO] [stderr]    |
[INFO] [stderr] 21 |                 count = 0;
[INFO] [stderr]    |                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/print.rs:76:14
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stderr]    |              ----^
[INFO] [stderr]    |              |
[INFO] [stderr]    |              help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/print.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stderr]    |                     ----^
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]   --> src/print.rs:76:14
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stderr]    |              ^^^^^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]   --> src/print.rs:76:21
[INFO] [stderr]    |
[INFO] [stderr] 76 |         let (mut k, mut t) = print_stats(&x, 10, 10);
[INFO] [stderr]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: `wordtop` (bin "wordtop" test) generated 5 warnings (run `cargo fix --bin "wordtop" -p wordtop --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/wordtop-5591a5cd7c9d45de)
[INFO] running `Command { std: "docker" "inspect" "24397d3eabf3afe3d606e6a931903fb539efd2de6e1152ee112081fa62e40cb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24397d3eabf3afe3d606e6a931903fb539efd2de6e1152ee112081fa62e40cb9", kill_on_drop: false }`
[INFO] [stdout] 24397d3eabf3afe3d606e6a931903fb539efd2de6e1152ee112081fa62e40cb9