[INFO] fetching crate labrpc 0.2.3... [INFO] testing labrpc-0.2.3 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-8 [INFO] extracting crate labrpc 0.2.3 into /workspace/builds/worker-1-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-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate labrpc 0.2.3 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 42 packages to latest compatible versions [INFO] [stderr] Adding rand v0.8.5 (available: v0.9.2) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c589467a22261b0d50c8c0caf99aae5e3556d74b7e5f652099529e6f9e388bd8 [INFO] running `Command { std: "docker" "start" "-a" "c589467a22261b0d50c8c0caf99aae5e3556d74b7e5f652099529e6f9e388bd8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c589467a22261b0d50c8c0caf99aae5e3556d74b7e5f652099529e6f9e388bd8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c589467a22261b0d50c8c0caf99aae5e3556d74b7e5f652099529e6f9e388bd8", kill_on_drop: false }` [INFO] [stdout] c589467a22261b0d50c8c0caf99aae5e3556d74b7e5f652099529e6f9e388bd8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 784c7dc4393f2321f5264ba0a6519b850872363a678ddb7255e551f0e6cdd5da [INFO] running `Command { std: "docker" "start" "-a" "784c7dc4393f2321f5264ba0a6519b850872363a678ddb7255e551f0e6cdd5da", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.21 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling futures-sink v0.3.31 [INFO] [stderr] Compiling futures-core v0.3.31 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling syn v2.0.110 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Compiling futures-channel v0.3.31 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling parking_lot v0.12.5 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling tokio v1.48.0 [INFO] [stderr] Compiling labrpc v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.46s [INFO] running `Command { std: "docker" "inspect" "784c7dc4393f2321f5264ba0a6519b850872363a678ddb7255e551f0e6cdd5da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "784c7dc4393f2321f5264ba0a6519b850872363a678ddb7255e551f0e6cdd5da", kill_on_drop: false }` [INFO] [stdout] 784c7dc4393f2321f5264ba0a6519b850872363a678ddb7255e551f0e6cdd5da [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dc88275825559baa698ab5968522dce785df90f9bd0fb5bb25a97cf4b3d625b9 [INFO] running `Command { std: "docker" "start" "-a" "dc88275825559baa698ab5968522dce785df90f9bd0fb5bb25a97cf4b3d625b9", kill_on_drop: false }` [INFO] [stderr] Compiling num_cpus v1.17.0 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [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 3.03s [INFO] running `Command { std: "docker" "inspect" "dc88275825559baa698ab5968522dce785df90f9bd0fb5bb25a97cf4b3d625b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dc88275825559baa698ab5968522dce785df90f9bd0fb5bb25a97cf4b3d625b9", kill_on_drop: false }` [INFO] [stdout] dc88275825559baa698ab5968522dce785df90f9bd0fb5bb25a97cf4b3d625b9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4a2bddf40b1327ec7de2f6d93d4b085ae6b79c557ec969b045290d79179ac7c3 [INFO] running `Command { std: "docker" "start" "-a" "4a2bddf40b1327ec7de2f6d93d4b085ae6b79c557ec969b045290d79179ac7c3", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] [INFO] [stderr] --> src/network.rs:389:27 [INFO] [stdout] running 23 tests [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-11c4d9c72c08799e) [INFO] [stdout] test network::tests::test_many_requests ... ignored, Large tests with many threads [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_not_connected ... ok [INFO] [stdout] test client::tests::test_call_rpc_remote_dropped ... 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_serve_rpc ... ok [INFO] [stdout] test network::tests::test_proxy_rpc_client_disabled ... ok [INFO] [stdout] test network::tests::test_proxy_rpc_server_not_found ... ok [INFO] [stdout] test network::tests::test_proxy_rpc_no_such_client ... ok [INFO] [stdout] test network::tests::test_proxy_rpc ... ok [INFO] [stdout] test server::tests::test_serve_interrupted ... ok [INFO] [stdout] test network::tests::test_network_shutdown ... ok [INFO] [stdout] test client::tests::test_call_across_threads ... ok [INFO] [stdout] test network::tests::test_server_killed ... ok [INFO] [stdout] test network::tests::test_rpc_count_works ... ok [INFO] [stdout] test server::tests::test_rpc_error ... ok [INFO] [stdout] test server::tests::test_register_rpc_handler_failure ... ok [INFO] [stdout] test network::tests::test_basic_functions ... 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. 22 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.51s [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" "4a2bddf40b1327ec7de2f6d93d4b085ae6b79c557ec969b045290d79179ac7c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a2bddf40b1327ec7de2f6d93d4b085ae6b79c557ec969b045290d79179ac7c3", kill_on_drop: false }` [INFO] [stdout] 4a2bddf40b1327ec7de2f6d93d4b085ae6b79c557ec969b045290d79179ac7c3