[INFO] fetching crate fqn-estimator 0.2.1...
[INFO] testing fqn-estimator-0.2.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate fqn-estimator 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate fqn-estimator 0.2.1
[INFO] finished tweaking crates.io crate fqn-estimator 0.2.1
[INFO] tweaked toml for crates.io crate fqn-estimator 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fqn-estimator 0.2.1 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 2 packages to latest compatible versions
[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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 67878957f4696efe50e2676bf1e55e522e37c5137c32ea92015b63bc4e1897f8
[INFO] running `Command { std: "docker" "start" "-a" "67878957f4696efe50e2676bf1e55e522e37c5137c32ea92015b63bc4e1897f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67878957f4696efe50e2676bf1e55e522e37c5137c32ea92015b63bc4e1897f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67878957f4696efe50e2676bf1e55e522e37c5137c32ea92015b63bc4e1897f8", kill_on_drop: false }`
[INFO] [stdout] 67878957f4696efe50e2676bf1e55e522e37c5137c32ea92015b63bc4e1897f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 84b67d74b7552fef311c3dd282c80beca0924b940ea84aee71e3ad364aa9eb90
[INFO] running `Command { std: "docker" "start" "-a" "84b67d74b7552fef311c3dd282c80beca0924b940ea84aee71e3ad364aa9eb90", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling fqn-estimator v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "84b67d74b7552fef311c3dd282c80beca0924b940ea84aee71e3ad364aa9eb90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b67d74b7552fef311c3dd282c80beca0924b940ea84aee71e3ad364aa9eb90", kill_on_drop: false }`
[INFO] [stdout] 84b67d74b7552fef311c3dd282c80beca0924b940ea84aee71e3ad364aa9eb90
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b25be2dfd46f112a1f289dbec9c28ce2dbbfa0938e2f3cf3cfc6fa5c13df9ec7
[INFO] running `Command { std: "docker" "start" "-a" "b25be2dfd46f112a1f289dbec9c28ce2dbbfa0938e2f3cf3cfc6fa5c13df9ec7", kill_on_drop: false }`
[INFO] [stderr]    Compiling fqn-estimator v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "b25be2dfd46f112a1f289dbec9c28ce2dbbfa0938e2f3cf3cfc6fa5c13df9ec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b25be2dfd46f112a1f289dbec9c28ce2dbbfa0938e2f3cf3cfc6fa5c13df9ec7", kill_on_drop: false }`
[INFO] [stdout] b25be2dfd46f112a1f289dbec9c28ce2dbbfa0938e2f3cf3cfc6fa5c13df9ec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 393fcb6509caa5f5b6cb38c8802dce112c6f5d5ea17f28b08867f44f99f9b423
[INFO] running `Command { std: "docker" "start" "-a" "393fcb6509caa5f5b6cb38c8802dce112c6f5d5ea17f28b08867f44f99f9b423", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fqn_estimator-fd5d204e5efc1515)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test dash_iter::tests::non_multiple_ok ... ok
[INFO] [stdout] test dash_iter::tests::multiple_ok ... ok
[INFO] [stdout] test dash_iter::tests::step_1_ok ... ok
[INFO] [stdout] test dash_iter::tests::one_ok ... ok
[INFO] [stdout] test rank::tests::matrix_3x3_ok ... ok
[INFO] [stdout] test estimator::tests::empty_ok ... ok
[INFO] [stdout] test estimator::tests::one_sample_ok ... ok
[INFO] [stdout] test pick_list::tests::matrix_3x3_ok ... ok
[INFO] [stdout] test pick_list::tests::matrix_2x2_zero_ok ... ok
[INFO] [stdout] test estimator::tests::two_samples_ok ... ok
[INFO] [stdout] test median::tests::odd_ok ... ok
[INFO] [stdout] test select::tests::matrix_2x2_ok ... ok
[INFO] [stdout] test rank::tests::matrix_2x2_ok ... ok
[INFO] [stderr]    Doc-tests fqn_estimator
[INFO] [stdout] test estimator::tests::window_overflow_ok ... ok
[INFO] [stdout] test median::tests::even_ok ... ok
[INFO] [stdout] test rank::tests::matrix_3x3_with_repetitions_ok ... ok
[INFO] [stdout] test select::tests::matrix_3x3_ok ... ok
[INFO] [stdout] test sorted_vec::tests::empty_ok ... ok
[INFO] [stdout] test sorted_vec::tests::odd_ok ... ok
[INFO] [stdout] test sorted_vec::tests::even_ok ... ok
[INFO] [stdout] test select::tests::matrix_4x4_ok ... ok
[INFO] [stdout] test select::tests::matrix_5x5_ok ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "393fcb6509caa5f5b6cb38c8802dce112c6f5d5ea17f28b08867f44f99f9b423", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393fcb6509caa5f5b6cb38c8802dce112c6f5d5ea17f28b08867f44f99f9b423", kill_on_drop: false }`
[INFO] [stdout] 393fcb6509caa5f5b6cb38c8802dce112c6f5d5ea17f28b08867f44f99f9b423