[INFO] fetching crate coronavirus 0.1.2... [INFO] checking coronavirus-0.1.2 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015 [INFO] extracting crate coronavirus 0.1.2 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate coronavirus 0.1.2 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate coronavirus 0.1.2 [INFO] finished tweaking crates.io crate coronavirus 0.1.2 [INFO] tweaked toml for crates.io crate coronavirus 0.1.2 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ab89b0e7c203bcdf07ada7ec93b3643720d29c3dfe26c97a5f62f6ada3dfdc4 [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" "6ab89b0e7c203bcdf07ada7ec93b3643720d29c3dfe26c97a5f62f6ada3dfdc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ab89b0e7c203bcdf07ada7ec93b3643720d29c3dfe26c97a5f62f6ada3dfdc4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ab89b0e7c203bcdf07ada7ec93b3643720d29c3dfe26c97a5f62f6ada3dfdc4", kill_on_drop: false }` [INFO] [stdout] 6ab89b0e7c203bcdf07ada7ec93b3643720d29c3dfe26c97a5f62f6ada3dfdc4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ae7ded0d28d92336620f80fd34bda5527faaed26b3907aeee697c9f7f093665d [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" "ae7ded0d28d92336620f80fd34bda5527faaed26b3907aeee697c9f7f093665d", kill_on_drop: false }` [INFO] [stderr] Compiling cc v1.0.60 [INFO] [stderr] Compiling serde v1.0.116 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling curl v0.4.33 [INFO] [stderr] Checking socket2 v0.3.15 [INFO] [stderr] Compiling libz-sys v1.1.2 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Compiling curl-sys v0.4.36+curl-7.71.1 [INFO] [stderr] Checking bstr v0.2.13 [INFO] [stderr] Checking csv v1.1.3 [INFO] [stderr] Checking coronavirus v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | let mut vec: Arc>> = Arc::new(Mutex::new(Vec::new())); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | let mut c_vec = vec.clone(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:13:6 [INFO] [stdout] | [INFO] [stdout] 13 | let mut vec: Arc>> = Arc::new(Mutex::new(Vec::new())); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:14:6 [INFO] [stdout] | [INFO] [stdout] 14 | let mut c_vec = vec.clone(); [INFO] [stdout] | ----^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 23.76s [INFO] running `Command { std: "docker" "inspect" "ae7ded0d28d92336620f80fd34bda5527faaed26b3907aeee697c9f7f093665d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae7ded0d28d92336620f80fd34bda5527faaed26b3907aeee697c9f7f093665d", kill_on_drop: false }` [INFO] [stdout] ae7ded0d28d92336620f80fd34bda5527faaed26b3907aeee697c9f7f093665d