[INFO] fetching crate labrpc 0.2.3... [INFO] testing labrpc-0.2.3 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate labrpc 0.2.3 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate labrpc 0.2.3 [INFO] finished tweaking crates.io crate labrpc 0.2.3 [INFO] tweaked toml for crates.io crate labrpc 0.2.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate labrpc 0.2.3 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 39 packages to latest compatible versions [INFO] [stderr] Adding rand v0.8.5 (available: v0.10.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1e6d833bad9397a634d1fd9dcb4bdc975638cb9d9e6a49f6bebaeeb057b58e47 [INFO] running `Command { std: "docker" "start" "-a" "1e6d833bad9397a634d1fd9dcb4bdc975638cb9d9e6a49f6bebaeeb057b58e47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1e6d833bad9397a634d1fd9dcb4bdc975638cb9d9e6a49f6bebaeeb057b58e47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e6d833bad9397a634d1fd9dcb4bdc975638cb9d9e6a49f6bebaeeb057b58e47", kill_on_drop: false }` [INFO] [stdout] 1e6d833bad9397a634d1fd9dcb4bdc975638cb9d9e6a49f6bebaeeb057b58e47 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a73f850cf9d5ccc52ee38e55bdf3ff0bdfbfbe714be51fe6b52d314d10fede8d [INFO] running `Command { std: "docker" "start" "-a" "a73f850cf9d5ccc52ee38e55bdf3ff0bdfbfbe714be51fe6b52d314d10fede8d", kill_on_drop: false }` [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Compiling tokio-macros v2.7.0 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling tokio v1.51.1 [INFO] [stderr] Compiling futures v0.3.32 [INFO] [stderr] Compiling labrpc v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.15s [INFO] running `Command { std: "docker" "inspect" "a73f850cf9d5ccc52ee38e55bdf3ff0bdfbfbe714be51fe6b52d314d10fede8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a73f850cf9d5ccc52ee38e55bdf3ff0bdfbfbe714be51fe6b52d314d10fede8d", kill_on_drop: false }` [INFO] [stdout] a73f850cf9d5ccc52ee38e55bdf3ff0bdfbfbe714be51fe6b52d314d10fede8d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 25367657e4af421d7407fd59df3185ce63e39e16f02b28dbd501e5b528ddacfb [INFO] running `Command { std: "docker" "start" "-a" "25367657e4af421d7407fd59df3185ce63e39e16f02b28dbd501e5b528ddacfb", kill_on_drop: false }` [INFO] [stderr] Compiling futures-executor v0.3.32 [INFO] [stderr] Compiling futures v0.3.32 [INFO] [stderr] Compiling labrpc v0.2.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/network.rs:389:27 [INFO] [stdout] | [INFO] [stdout] 389 | fn unlock(network: &Arc>) -> MutexGuard { [INFO] [stdout] | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 389 | fn unlock(network: &Arc>) -> MutexGuard<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.88s [INFO] running `Command { std: "docker" "inspect" "25367657e4af421d7407fd59df3185ce63e39e16f02b28dbd501e5b528ddacfb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "25367657e4af421d7407fd59df3185ce63e39e16f02b28dbd501e5b528ddacfb", kill_on_drop: false }` [INFO] [stdout] 25367657e4af421d7407fd59df3185ce63e39e16f02b28dbd501e5b528ddacfb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 589e804a0f0ebf17e3255f0d423c20f1ee5aa98ef351ba59fbab75458af26533 [INFO] running `Command { std: "docker" "start" "-a" "589e804a0f0ebf17e3255f0d423c20f1ee5aa98ef351ba59fbab75458af26533", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/network.rs:389:27 [INFO] [stderr] | [INFO] [stderr] 389 | fn unlock(network: &Arc>) -> MutexGuard { [INFO] [stderr] | ^^^^^^^^^^^^^^ ^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 389 | fn unlock(network: &Arc>) -> MutexGuard<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `labrpc` (lib test) generated 1 warning (run `cargo fix --lib -p labrpc --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/labrpc-25b4fdee9b017202) [INFO] [stdout] [INFO] [stdout] running 23 tests [INFO] [stdout] test network::tests::test_many_requests ... ignored, Large tests with many threads [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_rpc_remote_dropped ... 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 network::tests::test_rpc_count_works ... ok [INFO] [stdout] test server::tests::test_register_rpc_handler_failure ... ok [INFO] [stdout] test server::tests::test_register_rpc_handler ... ok [INFO] [stdout] test server::tests::test_serve_interrupted ... ok [INFO] [stdout] test server::tests::test_serve_rpc ... ok [INFO] [stdout] test server::tests::test_rpc_not_found ... ok [INFO] [stdout] test network::tests::test_network_shutdown ... ok [INFO] [stdout] test network::tests::test_proxy_rpc ... 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_no_such_client ... ok [INFO] [stdout] test network::tests::test_proxy_rpc_server_not_found ... ok [INFO] [stdout] test network::tests::test_proxy_rpc_server_error ... ok [INFO] [stdout] test server::tests::test_rpc_error ... ok [INFO] [stdout] test network::tests::test_basic_functions ... 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. 22 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.37s [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" "589e804a0f0ebf17e3255f0d423c20f1ee5aa98ef351ba59fbab75458af26533", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "589e804a0f0ebf17e3255f0d423c20f1ee5aa98ef351ba59fbab75458af26533", kill_on_drop: false }` [INFO] [stdout] 589e804a0f0ebf17e3255f0d423c20f1ee5aa98ef351ba59fbab75458af26533