[INFO] fetching crate futures-join-macro-preview 0.3.0-alpha.19... [INFO] checking futures-join-macro-preview-0.3.0-alpha.19 against try#9c1dcf141bc0875407c4eb36972857bd3db713e2 for pr-81863 [INFO] extracting crate futures-join-macro-preview 0.3.0-alpha.19 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate futures-join-macro-preview 0.3.0-alpha.19 on toolchain 9c1dcf141bc0875407c4eb36972857bd3db713e2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate futures-join-macro-preview 0.3.0-alpha.19 [INFO] finished tweaking crates.io crate futures-join-macro-preview 0.3.0-alpha.19 [INFO] tweaked toml for crates.io crate futures-join-macro-preview 0.3.0-alpha.19 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "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-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] b97fa94be6fb49dd422cb1be3c4cf9f955630d7ce88f8100acfd2650d873ae9e [INFO] running `Command { std: "docker" "start" "-a" "b97fa94be6fb49dd422cb1be3c4cf9f955630d7ce88f8100acfd2650d873ae9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b97fa94be6fb49dd422cb1be3c4cf9f955630d7ce88f8100acfd2650d873ae9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b97fa94be6fb49dd422cb1be3c4cf9f955630d7ce88f8100acfd2650d873ae9e", kill_on_drop: false }` [INFO] [stdout] b97fa94be6fb49dd422cb1be3c4cf9f955630d7ce88f8100acfd2650d873ae9e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9c1dcf141bc0875407c4eb36972857bd3db713e2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2bf6a21e097dbb8391e1ba0f992234f4440dbc70b7131edad115282dd479f3f9 [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" "2bf6a21e097dbb8391e1ba0f992234f4440dbc70b7131edad115282dd479f3f9", kill_on_drop: false }` [INFO] [stderr] Checking unicode-xid v0.2.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.19 [INFO] [stderr] Compiling syn v1.0.60 [INFO] [stderr] Checking proc-macro2 v1.0.24 [INFO] [stderr] Checking quote v1.0.8 [INFO] [stderr] Checking futures-join-macro-preview v0.3.0-alpha.19 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused extern crate [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate proc_macro; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | #![warn(rust_2018_idioms, unreachable_pub)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused extern crate [INFO] [stdout] --> src/lib.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | extern crate proc_macro; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it [INFO] [stdout] | [INFO] [stdout] note: the lint level is defined here [INFO] [stdout] --> src/lib.rs:4:9 [INFO] [stdout] | [INFO] [stdout] 4 | #![warn(rust_2018_idioms, unreachable_pub)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.08s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2bf6a21e097dbb8391e1ba0f992234f4440dbc70b7131edad115282dd479f3f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bf6a21e097dbb8391e1ba0f992234f4440dbc70b7131edad115282dd479f3f9", kill_on_drop: false }` [INFO] [stdout] 2bf6a21e097dbb8391e1ba0f992234f4440dbc70b7131edad115282dd479f3f9