[INFO] fetching crate round_robin 1.0.0...
[INFO] testing round_robin-1.0.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate round_robin 1.0.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate round_robin 1.0.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate round_robin 1.0.0
[INFO] finished tweaking crates.io crate round_robin 1.0.0
[INFO] tweaked toml for crates.io crate round_robin 1.0.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d1ac4b90bd49e091befbe53c4b3085c9895ae16052e462aff583e40be81f431
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4d1ac4b90bd49e091befbe53c4b3085c9895ae16052e462aff583e40be81f431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d1ac4b90bd49e091befbe53c4b3085c9895ae16052e462aff583e40be81f431", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d1ac4b90bd49e091befbe53c4b3085c9895ae16052e462aff583e40be81f431", kill_on_drop: false }`
[INFO] [stdout] 4d1ac4b90bd49e091befbe53c4b3085c9895ae16052e462aff583e40be81f431
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 67a44ed24094fdb420c66dc36fa902c2f7a4b06efe19291ede32483693e63fca
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "67a44ed24094fdb420c66dc36fa902c2f7a4b06efe19291ede32483693e63fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling round_robin v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "67a44ed24094fdb420c66dc36fa902c2f7a4b06efe19291ede32483693e63fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67a44ed24094fdb420c66dc36fa902c2f7a4b06efe19291ede32483693e63fca", kill_on_drop: false }`
[INFO] [stdout] 67a44ed24094fdb420c66dc36fa902c2f7a4b06efe19291ede32483693e63fca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ab7c485b4a1c4b0f831055bd4aa0708cf98f881d04be5e25089ab03398bf896
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2ab7c485b4a1c4b0f831055bd4aa0708cf98f881d04be5e25089ab03398bf896", kill_on_drop: false }`
[INFO] [stderr]    Compiling round_robin v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "2ab7c485b4a1c4b0f831055bd4aa0708cf98f881d04be5e25089ab03398bf896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ab7c485b4a1c4b0f831055bd4aa0708cf98f881d04be5e25089ab03398bf896", kill_on_drop: false }`
[INFO] [stdout] 2ab7c485b4a1c4b0f831055bd4aa0708cf98f881d04be5e25089ab03398bf896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4ed606a6030338a7102a5fb6fbb3bb66ce9208851f428c33c9520aad0eb4b7fe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4ed606a6030338a7102a5fb6fbb3bb66ce9208851f428c33c9520aad0eb4b7fe", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/round_robin-9096096714d17eff)
[INFO] [stdout] running 5 tests
[INFO] [stderr]    Doc-tests round_robin
[INFO] [stdout] test tests::first_game_of_first_round_is_first_player_versus_last_player ... ok
[INFO] [stdout] test tests::number_rounds_with_round_trip ... ok
[INFO] [stdout] test tests::first_game_of_last_round_is_first_player_versus_second_player ... ok
[INFO] [stdout] test tests::number_rounds_without_round_trip ... ok
[INFO] [stdout] test tests::number_games_per_round ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stdout] test src/lib.rs - round_robin (line 24) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - round_robin (line 24) stdout ----
[INFO] [stdout] error[E0423]: expected function, found crate `round_robin`
[INFO] [stdout]  --> src/lib.rs:25:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | round_robin(vec!["A".to_string(), "B".to_string(), "C".to_string(), "D".to_string()], false);
[INFO] [stdout]   | ^^^^^^^^^^^ not a function
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function instead
[INFO] [stdout]   |
[INFO] [stdout] 3 | use round_robin::round_robin;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0423`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - round_robin (line 24)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4ed606a6030338a7102a5fb6fbb3bb66ce9208851f428c33c9520aad0eb4b7fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed606a6030338a7102a5fb6fbb3bb66ce9208851f428c33c9520aad0eb4b7fe", kill_on_drop: false }`
[INFO] [stdout] 4ed606a6030338a7102a5fb6fbb3bb66ce9208851f428c33c9520aad0eb4b7fe