[INFO] fetching crate grouper 0.4.1...
[INFO] testing grouper-0.4.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate grouper 0.4.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate grouper 0.4.1
[INFO] finished tweaking crates.io crate grouper 0.4.1
[INFO] tweaked toml for crates.io crate grouper 0.4.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate grouper 0.4.1 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 6 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.17)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 847ef114cb58cac440726690c1805e6ec6cdccdc6d2055ea7341be0119da4b50
[INFO] running `Command { std: "docker" "start" "-a" "847ef114cb58cac440726690c1805e6ec6cdccdc6d2055ea7341be0119da4b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "847ef114cb58cac440726690c1805e6ec6cdccdc6d2055ea7341be0119da4b50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "847ef114cb58cac440726690c1805e6ec6cdccdc6d2055ea7341be0119da4b50", kill_on_drop: false }`
[INFO] [stdout] 847ef114cb58cac440726690c1805e6ec6cdccdc6d2055ea7341be0119da4b50
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 23a62a4b267156db3f0cbcfc5ec6efbed6b721380736d924795340966a33e169
[INFO] running `Command { std: "docker" "start" "-a" "23a62a4b267156db3f0cbcfc5ec6efbed6b721380736d924795340966a33e169", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling grouper v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `Command { std: "docker" "inspect" "23a62a4b267156db3f0cbcfc5ec6efbed6b721380736d924795340966a33e169", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a62a4b267156db3f0cbcfc5ec6efbed6b721380736d924795340966a33e169", kill_on_drop: false }`
[INFO] [stdout] 23a62a4b267156db3f0cbcfc5ec6efbed6b721380736d924795340966a33e169
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 5c266e24c6248b2cdb04f6ca2eb4e772acd63f90552b276c1b6d22b94f8b2e8b
[INFO] running `Command { std: "docker" "start" "-a" "5c266e24c6248b2cdb04f6ca2eb4e772acd63f90552b276c1b6d22b94f8b2e8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling grouper v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "5c266e24c6248b2cdb04f6ca2eb4e772acd63f90552b276c1b6d22b94f8b2e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c266e24c6248b2cdb04f6ca2eb4e772acd63f90552b276c1b6d22b94f8b2e8b", kill_on_drop: false }`
[INFO] [stdout] 5c266e24c6248b2cdb04f6ca2eb4e772acd63f90552b276c1b6d22b94f8b2e8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 9bc11770649941f592f0d41cf1791a41b9b258043b14caf7cdc5b6cf91e140eb
[INFO] running `Command { std: "docker" "start" "-a" "9bc11770649941f592f0d41cf1791a41b9b258043b14caf7cdc5b6cf91e140eb", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/grouper-75376be18af01816)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test test::checked_rng_ok ... ok
[INFO] [stdout] test test::get_eligible_for ... ok
[INFO] [stdout] test test::iter ... ok
[INFO] [stdout] test test::mk_links ... ok
[INFO] [stdout] test test::new_none_linked ... ok
[INFO] [stdout] test test::reset_links ... ok
[INFO] [stdout] test test::not_contains_none ... ok
[INFO] [stdout] test test::checked_rng_err ... ok
[INFO] [stdout] test test::link_item ... ok
[INFO] [stdout] test test::contains_none ... ok
[INFO] [stdout] test test::new_all_linked ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests grouper
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9bc11770649941f592f0d41cf1791a41b9b258043b14caf7cdc5b6cf91e140eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bc11770649941f592f0d41cf1791a41b9b258043b14caf7cdc5b6cf91e140eb", kill_on_drop: false }`
[INFO] [stdout] 9bc11770649941f592f0d41cf1791a41b9b258043b14caf7cdc5b6cf91e140eb