[INFO] fetching crate labrpc 0.2.1...
[INFO] testing labrpc-0.2.1 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate labrpc 0.2.1 into /workspace/builds/worker-41/source
[INFO] validating manifest of crates.io crate labrpc 0.2.1 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate labrpc 0.2.1
[INFO] finished tweaking crates.io crate labrpc 0.2.1
[INFO] tweaked toml for crates.io crate labrpc 0.2.1 written to /workspace/builds/worker-41/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aca8d76f807ad5e36389c2922db61eb0207660cd5487a721b780a5084262f24
[INFO] running `Command { std: "docker" "start" "-a" "2aca8d76f807ad5e36389c2922db61eb0207660cd5487a721b780a5084262f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aca8d76f807ad5e36389c2922db61eb0207660cd5487a721b780a5084262f24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aca8d76f807ad5e36389c2922db61eb0207660cd5487a721b780a5084262f24", kill_on_drop: false }`
[INFO] [stdout] 2aca8d76f807ad5e36389c2922db61eb0207660cd5487a721b780a5084262f24
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5afe1cf1a07705b47d8d0c08eca2fdc62fcfd84e1690bd0549f353e188bcd361
[INFO] running `Command { std: "docker" "start" "-a" "5afe1cf1a07705b47d8d0c08eca2fdc62fcfd84e1690bd0549f353e188bcd361", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-sink v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling crossbeam-utils v0.8.7
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.21
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.6
[INFO] [stderr]    Compiling crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.12.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-executor v0.3.21
[INFO] [stderr]    Compiling futures v0.3.21
[INFO] [stderr]    Compiling tokio-macros v1.7.0
[INFO] [stderr]    Compiling tokio v1.17.0
[INFO] [stderr]    Compiling labrpc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.83s
[INFO] running `Command { std: "docker" "inspect" "5afe1cf1a07705b47d8d0c08eca2fdc62fcfd84e1690bd0549f353e188bcd361", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5afe1cf1a07705b47d8d0c08eca2fdc62fcfd84e1690bd0549f353e188bcd361", kill_on_drop: false }`
[INFO] [stdout] 5afe1cf1a07705b47d8d0c08eca2fdc62fcfd84e1690bd0549f353e188bcd361
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfd76761ae2effb664ffc4b7beb87bbb2a592a0dd4d04062c8fc6b4743276be4
[INFO] running `Command { std: "docker" "start" "-a" "cfd76761ae2effb664ffc4b7beb87bbb2a592a0dd4d04062c8fc6b4743276be4", kill_on_drop: false }`
[INFO] [stderr]    Compiling labrpc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.04s
[INFO] running `Command { std: "docker" "inspect" "cfd76761ae2effb664ffc4b7beb87bbb2a592a0dd4d04062c8fc6b4743276be4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfd76761ae2effb664ffc4b7beb87bbb2a592a0dd4d04062c8fc6b4743276be4", kill_on_drop: false }`
[INFO] [stdout] cfd76761ae2effb664ffc4b7beb87bbb2a592a0dd4d04062c8fc6b4743276be4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-41/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" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 575c14ef10c68785d6ef0b2033e4c6f6aad62413fa310a226854c509c0335dd0
[INFO] running `Command { std: "docker" "start" "-a" "575c14ef10c68785d6ef0b2033e4c6f6aad62413fa310a226854c509c0335dd0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/labrpc-6ede0942e8a58942)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test network::tests::test_many_requests ... ignored
[INFO] [stdout] test client::tests::test_call_across_threads ... ok
[INFO] [stdout] test client::tests::test_call_rpc_not_connected ... ok
[INFO] [stdout] test client::tests::test_call_rpc ... ok
[INFO] [stdout] test client::tests::test_call_rpc_remote_error ... ok
[INFO] [stdout] test client::tests::test_call_rpc_remote_dropped ... ok
[INFO] [stdout] test server::tests::test_register_rpc_handler ... ok
[INFO] [stdout] test server::tests::test_register_rpc_handler_failure ... ok
[INFO] [stdout] test server::tests::test_rpc_not_found ... ok
[INFO] [stdout] test server::tests::test_serve_rpc ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc ... ok
[INFO] [stdout] test network::tests::test_rpc_count_works ... ok
[INFO] [stdout] test network::tests::test_server_killed ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_client_disabled ... ok
[INFO] [stdout] test network::tests::test_network_shutdown ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_no_such_client ... ok
[INFO] [stdout] test network::tests::test_basic_functions ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_server_not_found ... ok
[INFO] [stdout] test server::tests::test_rpc_error ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_server_error ... ok
[INFO] [stdout] test server::tests::test_server_survives_30_rpc_errors ... ok
[INFO] [stdout] test network::tests::test_unreliable ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.54s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests labrpc
[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" "575c14ef10c68785d6ef0b2033e4c6f6aad62413fa310a226854c509c0335dd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "575c14ef10c68785d6ef0b2033e4c6f6aad62413fa310a226854c509c0335dd0", kill_on_drop: false }`
[INFO] [stdout] 575c14ef10c68785d6ef0b2033e4c6f6aad62413fa310a226854c509c0335dd0