[INFO] fetching crate simbol-server 1.1.0... [INFO] checking simbol-server-1.1.0 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322 [INFO] extracting crate simbol-server 1.1.0 into /workspace/builds/worker-3/source [INFO] validating manifest of crates.io crate simbol-server 1.1.0 on toolchain 3e826bb11228508fbe749e594038d6727208aa94 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate simbol-server 1.1.0 [INFO] finished tweaking crates.io crate simbol-server 1.1.0 [INFO] tweaked toml for crates.io crate simbol-server 1.1.0 written to /workspace/builds/worker-3/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e674d9194962ac749326d7bdbc1993a19fb83ee74320a8a2f49cfc408a1b35b4 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e674d9194962ac749326d7bdbc1993a19fb83ee74320a8a2f49cfc408a1b35b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e674d9194962ac749326d7bdbc1993a19fb83ee74320a8a2f49cfc408a1b35b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e674d9194962ac749326d7bdbc1993a19fb83ee74320a8a2f49cfc408a1b35b4", kill_on_drop: false }` [INFO] [stdout] e674d9194962ac749326d7bdbc1993a19fb83ee74320a8a2f49cfc408a1b35b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1d158f3699b827bd0ed02caf9ff3f5fa5be957a1cb982ebcf18bf732336f8dc8 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "1d158f3699b827bd0ed02caf9ff3f5fa5be957a1cb982ebcf18bf732336f8dc8", kill_on_drop: false }` [INFO] [stderr] Compiling version_check v0.1.5 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Compiling native-tls v0.2.7 [INFO] [stderr] Checking typeable v0.1.2 [INFO] [stderr] Checking antidote v1.0.0 [INFO] [stderr] Checking modifier v0.1.0 [INFO] [stderr] Compiling serde v1.0.123 [INFO] [stderr] Checking sequence_trie v0.3.6 [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking route-recognizer v0.1.13 [INFO] [stderr] Compiling libc v0.2.87 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Compiling openssl v0.10.32 [INFO] [stderr] Checking unsafe-any v0.4.2 [INFO] [stderr] Checking mio v0.6.23 [INFO] [stderr] Checking mime v0.2.6 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking typemap v0.3.3 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Checking plugin v0.2.6 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Checking hyper v0.10.16 [INFO] [stderr] Checking mio-extras v2.0.6 [INFO] [stderr] Compiling phf v0.7.24 [INFO] [stderr] Checking ws v0.7.9 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling mime_guess v1.8.8 [INFO] [stderr] Checking hyper-native-tls v0.3.0 [INFO] [stderr] Checking iron v0.6.1 [INFO] [stderr] Checking serde_json v1.0.64 [INFO] [stderr] Checking mount v0.4.0 [INFO] [stderr] Checking router v0.6.0 [INFO] [stderr] Checking iron-cors v0.8.0 [INFO] [stderr] Checking staticfile v0.5.0 [INFO] [stderr] Checking simbol-server v1.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/multivp.rs:140:86 [INFO] [stdout] | [INFO] [stdout] 140 | let connections = Connections::new(RefCell::new(Vec::with_capacity(10_000)));; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary trailing semicolon [INFO] [stdout] --> src/multivp.rs:140:86 [INFO] [stdout] | [INFO] [stdout] 140 | let connections = Connections::new(RefCell::new(Vec::with_capacity(10_000)));; [INFO] [stdout] | ^ help: remove this semicolon [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(redundant_semicolons)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/multivp.rs:82:37 [INFO] [stdout] | [INFO] [stdout] 82 | ... connection.send(msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/multivp.rs:112:21 [INFO] [stdout] | [INFO] [stdout] 112 | connection.send(msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/multivp.rs:82:37 [INFO] [stdout] | [INFO] [stdout] 82 | ... connection.send(msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/multivp.rs:112:21 [INFO] [stdout] | [INFO] [stdout] 112 | connection.send(msg); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 21.20s [INFO] running `Command { std: "docker" "inspect" "1d158f3699b827bd0ed02caf9ff3f5fa5be957a1cb982ebcf18bf732336f8dc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d158f3699b827bd0ed02caf9ff3f5fa5be957a1cb982ebcf18bf732336f8dc8", kill_on_drop: false }` [INFO] [stdout] 1d158f3699b827bd0ed02caf9ff3f5fa5be957a1cb982ebcf18bf732336f8dc8