[INFO] fetching crate labrpc 0.1.12...
[INFO] testing labrpc-0.1.12 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate labrpc 0.1.12 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate labrpc 0.1.12 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate labrpc 0.1.12
[INFO] finished tweaking crates.io crate labrpc 0.1.12
[INFO] tweaked toml for crates.io crate labrpc 0.1.12 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 980bc92762a16ea632dfb12fc48e6e377b5c2b8ddb45576f030148460b1c3a8e
[INFO] running `Command { std: "docker" "start" "-a" "980bc92762a16ea632dfb12fc48e6e377b5c2b8ddb45576f030148460b1c3a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "980bc92762a16ea632dfb12fc48e6e377b5c2b8ddb45576f030148460b1c3a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "980bc92762a16ea632dfb12fc48e6e377b5c2b8ddb45576f030148460b1c3a8e", kill_on_drop: false }`
[INFO] [stdout] 980bc92762a16ea632dfb12fc48e6e377b5c2b8ddb45576f030148460b1c3a8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] afee813360e6249e7c4b03aed5feb4aef33c75d8c51b9ea1097e135649bcf058
[INFO] running `Command { std: "docker" "start" "-a" "afee813360e6249e7c4b03aed5feb4aef33c75d8c51b9ea1097e135649bcf058", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling instant v0.1.10
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling futures v0.3.15
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling labrpc v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.53s
[INFO] running `Command { std: "docker" "inspect" "afee813360e6249e7c4b03aed5feb4aef33c75d8c51b9ea1097e135649bcf058", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afee813360e6249e7c4b03aed5feb4aef33c75d8c51b9ea1097e135649bcf058", kill_on_drop: false }`
[INFO] [stdout] afee813360e6249e7c4b03aed5feb4aef33c75d8c51b9ea1097e135649bcf058
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fdd13a2c69a55b593b0b242210f116c4e898c096bb3a94130dbab7522ba090b0
[INFO] running `Command { std: "docker" "start" "-a" "fdd13a2c69a55b593b0b242210f116c4e898c096bb3a94130dbab7522ba090b0", kill_on_drop: false }`
[INFO] [stderr]    Compiling labrpc v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.12s
[INFO] running `Command { std: "docker" "inspect" "fdd13a2c69a55b593b0b242210f116c4e898c096bb3a94130dbab7522ba090b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdd13a2c69a55b593b0b242210f116c4e898c096bb3a94130dbab7522ba090b0", kill_on_drop: false }`
[INFO] [stdout] fdd13a2c69a55b593b0b242210f116c4e898c096bb3a94130dbab7522ba090b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 25ce1fbba557788324a7b5a26554003ab45cde83f13e3917051bb25053babf38
[INFO] running `Command { std: "docker" "start" "-a" "25ce1fbba557788324a7b5a26554003ab45cde83f13e3917051bb25053babf38", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] running 22 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/labrpc-35cd24142369ed77)
[INFO] [stdout] test network::tests::test_many_requests ... ignored
[INFO] [stdout] test network::tests::test_rpc_count_works ... ok
[INFO] [stdout] test client::tests::test_call_rpc_not_connected ... ok
[INFO] [stdout] test client::tests::test_call_rpc_remote_error ... ok
[INFO] [stdout] test client::tests::test_call_rpc ... 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 server::tests::test_serve_rpc ... ok
[INFO] [stdout] test server::tests::test_rpc_not_found ... 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 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_client_disabled ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_no_such_client ... ok
[INFO] [stdout] test network::tests::test_network_shutdown ... ok
[INFO] [stdout] test server::tests::test_rpc_error ... ok
[INFO] [stdout] test network::tests::test_proxy_rpc_server_error ... ok
[INFO] [stdout] test network::tests::test_basic_functions ... ok
[INFO] [stdout] test server::tests::test_server_survives_3_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 1.22s
[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" "25ce1fbba557788324a7b5a26554003ab45cde83f13e3917051bb25053babf38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25ce1fbba557788324a7b5a26554003ab45cde83f13e3917051bb25053babf38", kill_on_drop: false }`
[INFO] [stdout] 25ce1fbba557788324a7b5a26554003ab45cde83f13e3917051bb25053babf38