[INFO] fetching crate stream_histogram 0.1.1... [INFO] testing stream_histogram-0.1.1 against beta-2025-09-21 for beta-1.91-3 [INFO] extracting crate stream_histogram 0.1.1 into /workspace/builds/worker-7-tc2/source [INFO] started tweaking crates.io crate stream_histogram 0.1.1 [INFO] finished tweaking crates.io crate stream_histogram 0.1.1 [INFO] tweaked toml for crates.io crate stream_histogram 0.1.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate stream_histogram 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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 linked-list v0.0.3 (available: v0.1.0) [INFO] [stderr] Adding rand v0.5.6 (available: v0.9.2) [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] 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3dcb845f5168659575dce0ede03f8ee44c410ff30a2ff162defcc7342d53e866 [INFO] running `Command { std: "docker" "start" "-a" "3dcb845f5168659575dce0ede03f8ee44c410ff30a2ff162defcc7342d53e866", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3dcb845f5168659575dce0ede03f8ee44c410ff30a2ff162defcc7342d53e866", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3dcb845f5168659575dce0ede03f8ee44c410ff30a2ff162defcc7342d53e866", kill_on_drop: false }` [INFO] [stdout] 3dcb845f5168659575dce0ede03f8ee44c410ff30a2ff162defcc7342d53e866 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6447dd2d0661f108ca35965497352fa5774b0f10aec00a850705490a61ef149f [INFO] running `Command { std: "docker" "start" "-a" "6447dd2d0661f108ca35965497352fa5774b0f10aec00a850705490a61ef149f", kill_on_drop: false }` [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling linked-list v0.0.3 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling stream_histogram v0.1.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `Command { std: "docker" "inspect" "6447dd2d0661f108ca35965497352fa5774b0f10aec00a850705490a61ef149f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6447dd2d0661f108ca35965497352fa5774b0f10aec00a850705490a61ef149f", kill_on_drop: false }` [INFO] [stdout] 6447dd2d0661f108ca35965497352fa5774b0f10aec00a850705490a61ef149f [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6f95d46547e19b83ff70fcce2630f96249b02c8bc227229730cb88505d8a5149 [INFO] running `Command { std: "docker" "start" "-a" "6f95d46547e19b83ff70fcce2630f96249b02c8bc227229730cb88505d8a5149", kill_on_drop: false }` [INFO] [stderr] Compiling stream_histogram v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `Distribution` and `Normal` [INFO] [stdout] --> src/lib.rs:296:31 [INFO] [stdout] | [INFO] [stdout] 296 | use rand::distributions::{Distribution, Normal}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s [INFO] running `Command { std: "docker" "inspect" "6f95d46547e19b83ff70fcce2630f96249b02c8bc227229730cb88505d8a5149", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f95d46547e19b83ff70fcce2630f96249b02c8bc227229730cb88505d8a5149", kill_on_drop: false }` [INFO] [stdout] 6f95d46547e19b83ff70fcce2630f96249b02c8bc227229730cb88505d8a5149 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] cf04543545f51227e1b2df41f9cf548c077752a2706e8d819b1bff415f55369c [INFO] running `Command { std: "docker" "start" "-a" "cf04543545f51227e1b2df41f9cf548c077752a2706e8d819b1bff415f55369c", kill_on_drop: false }` [INFO] [stderr] warning: unused imports: `Distribution` and `Normal` [INFO] [stderr] --> src/lib.rs:296:31 [INFO] [stderr] | [INFO] [stderr] 296 | use rand::distributions::{Distribution, Normal}; [INFO] [stderr] | ^^^^^^^^^^^^ ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] [INFO] [stderr] warning: `stream_histogram` (lib test) generated 1 warning (run `cargo fix --lib -p stream_histogram --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stream_histogram-92a9b7a38efe8605) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test tests::test_print ... ok [INFO] [stdout] test tests::test_histogram ... ok [INFO] [stdout] test tests::test_statistics_function ... ok [INFO] [stdout] test tests::test_report ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stderr] Doc-tests stream_histogram [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test src/lib.rs - Histogram::add (line 61) ... FAILED [INFO] [stdout] test src/lib.rs - Histogram::report (line 251) ... FAILED [INFO] [stdout] test src/lib.rs - Histogram::to_string (line 225) ... FAILED [INFO] [stdout] test src/lib.rs - Histogram::new (line 34) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - Histogram::add (line 61) stdout ---- [INFO] [stdout] error[E0432]: unresolved import `crate::histogram` [INFO] [stdout] --> src/lib.rs:62:12 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::histogram::Histogram; [INFO] [stdout] | ^^^^^^^^^ could not find `histogram` in the crate root [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0432`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Histogram::report (line 251) stdout ---- [INFO] [stdout] error[E0432]: unresolved import `crate::histogram` [INFO] [stdout] --> src/lib.rs:252:12 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::histogram::Histogram; [INFO] [stdout] | ^^^^^^^^^ could not find `histogram` in the crate root [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0432`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Histogram::to_string (line 225) stdout ---- [INFO] [stdout] error[E0432]: unresolved import `crate::histogram` [INFO] [stdout] --> src/lib.rs:227:13 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::histogram::Histogram; [INFO] [stdout] | ^^^^^^^^^ could not find `histogram` in the crate root [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0432`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - Histogram::new (line 34) stdout ---- [INFO] [stdout] error[E0432]: unresolved import `crate::histogram` [INFO] [stdout] --> src/lib.rs:35:12 [INFO] [stdout] | [INFO] [stdout] 3 | use crate::histogram::Histogram; [INFO] [stdout] | ^^^^^^^^^ could not find `histogram` in the crate root [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0432`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - Histogram::add (line 61) [INFO] [stdout] src/lib.rs - Histogram::new (line 34) [INFO] [stdout] src/lib.rs - Histogram::report (line 251) [INFO] [stdout] src/lib.rs - Histogram::to_string (line 225) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "cf04543545f51227e1b2df41f9cf548c077752a2706e8d819b1bff415f55369c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf04543545f51227e1b2df41f9cf548c077752a2706e8d819b1bff415f55369c", kill_on_drop: false }` [INFO] [stdout] cf04543545f51227e1b2df41f9cf548c077752a2706e8d819b1bff415f55369c