[INFO] fetching crate plugin_manager_lib 0.1.3... [INFO] checking plugin_manager_lib-0.1.3 against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352 [INFO] extracting crate plugin_manager_lib 0.1.3 into /workspace/builds/worker-4-tc1/source [INFO] validating manifest of crates.io crate plugin_manager_lib 0.1.3 on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate plugin_manager_lib 0.1.3 [INFO] finished tweaking crates.io crate plugin_manager_lib 0.1.3 [INFO] tweaked toml for crates.io crate plugin_manager_lib 0.1.3 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 12 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libloader v0.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 74304c0fe310a4e7babe1623fc4e517dc41518780772bc259d6391e80b124044 [INFO] running `Command { std: "docker" "start" "-a" "74304c0fe310a4e7babe1623fc4e517dc41518780772bc259d6391e80b124044", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74304c0fe310a4e7babe1623fc4e517dc41518780772bc259d6391e80b124044", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74304c0fe310a4e7babe1623fc4e517dc41518780772bc259d6391e80b124044", kill_on_drop: false }` [INFO] [stdout] 74304c0fe310a4e7babe1623fc4e517dc41518780772bc259d6391e80b124044 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7cf35165066d0a62638116cd8d41a52f61ef2135394341be5b520efb071074f4 [INFO] running `Command { std: "docker" "start" "-a" "7cf35165066d0a62638116cd8d41a52f61ef2135394341be5b520efb071074f4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.95 [INFO] [stderr] Compiling unicode-ident v1.0.18 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Checking libloading v0.7.4 [INFO] [stderr] Checking libloader v0.1.4 [INFO] [stderr] Compiling quote v1.0.40 [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Checking plugin_manager_lib v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/lib.rs:172:15 [INFO] [stdout] | [INFO] [stdout] 172 | Some((name, plugin)) => { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/lib.rs:169:14 [INFO] [stdout] | [INFO] [stdout] 169 | unsafe { plugin_manager.load_extend("libplugin.so") }; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 169 | unsafe { let _ = plugin_manager.load_extend("libplugin.so"); }; [INFO] [stdout] | +++++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.03s [INFO] running `Command { std: "docker" "inspect" "7cf35165066d0a62638116cd8d41a52f61ef2135394341be5b520efb071074f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7cf35165066d0a62638116cd8d41a52f61ef2135394341be5b520efb071074f4", kill_on_drop: false }` [INFO] [stdout] 7cf35165066d0a62638116cd8d41a52f61ef2135394341be5b520efb071074f4