[INFO] fetching crate labrpc 0.2.1...
[INFO] testing labrpc-0.2.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate labrpc 0.2.1 into /workspace/builds/worker-92/source
[INFO] validating manifest of crates.io crate labrpc 0.2.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-92/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1704373c539b35af803985bafed1b2d08ec2f074fe5b6d0c6e0d99ba8302b9b8
[INFO] running `Command { std: "docker" "start" "-a" "1704373c539b35af803985bafed1b2d08ec2f074fe5b6d0c6e0d99ba8302b9b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1704373c539b35af803985bafed1b2d08ec2f074fe5b6d0c6e0d99ba8302b9b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1704373c539b35af803985bafed1b2d08ec2f074fe5b6d0c6e0d99ba8302b9b8", kill_on_drop: false }`
[INFO] [stdout] 1704373c539b35af803985bafed1b2d08ec2f074fe5b6d0c6e0d99ba8302b9b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88854922b11aa73c80bdc69facdfb3755c3410a7301f6ac0000715abfff28bc3
[INFO] running `Command { std: "docker" "start" "-a" "88854922b11aa73c80bdc69facdfb3755c3410a7301f6ac0000715abfff28bc3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling futures-sink v0.3.17
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling tokio v1.14.0
[INFO] [stderr]    Compiling tokio-macros v1.6.0
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr]    Compiling labrpc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.06s
[INFO] running `Command { std: "docker" "inspect" "88854922b11aa73c80bdc69facdfb3755c3410a7301f6ac0000715abfff28bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88854922b11aa73c80bdc69facdfb3755c3410a7301f6ac0000715abfff28bc3", kill_on_drop: false }`
[INFO] [stdout] 88854922b11aa73c80bdc69facdfb3755c3410a7301f6ac0000715abfff28bc3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 267a7c0ed642cdeb61e5b5a49dd0c1c36946c74c8ec2824ba095b95547328298
[INFO] running `Command { std: "docker" "start" "-a" "267a7c0ed642cdeb61e5b5a49dd0c1c36946c74c8ec2824ba095b95547328298", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling labrpc v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.32s
[INFO] running `Command { std: "docker" "inspect" "267a7c0ed642cdeb61e5b5a49dd0c1c36946c74c8ec2824ba095b95547328298", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "267a7c0ed642cdeb61e5b5a49dd0c1c36946c74c8ec2824ba095b95547328298", kill_on_drop: false }`
[INFO] [stdout] 267a7c0ed642cdeb61e5b5a49dd0c1c36946c74c8ec2824ba095b95547328298
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-92/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f6ab3055af7ae51ffde72ec810f223895d2f4ae59092a91ba4d99d8049488e9
[INFO] running `Command { std: "docker" "start" "-a" "2f6ab3055af7ae51ffde72ec810f223895d2f4ae59092a91ba4d99d8049488e9", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/labrpc-2ff5e1b10a2817a5)
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test network::tests::test_many_requests ... ignored
[INFO] [stdout] test client::tests::test_call_rpc ... ok
[INFO] [stdout] test client::tests::test_call_rpc_not_connected ... ok
[INFO] [stdout] test client::tests::test_call_across_threads ... ok
[INFO] [stdout] test client::tests::test_call_rpc_remote_dropped ... ok
[INFO] [stdout] test client::tests::test_call_rpc_remote_error ... 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_network_shutdown ... ok
[INFO] [stdout] test network::tests::test_rpc_count_works ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_server_not_found ... ok
[INFO] [stdout] test network::tests::test_server_killed ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_client_disabled ... 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 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 2.04s
[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" "2f6ab3055af7ae51ffde72ec810f223895d2f4ae59092a91ba4d99d8049488e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f6ab3055af7ae51ffde72ec810f223895d2f4ae59092a91ba4d99d8049488e9", kill_on_drop: false }`
[INFO] [stdout] 2f6ab3055af7ae51ffde72ec810f223895d2f4ae59092a91ba4d99d8049488e9