[INFO] crate futures-join-macro-preview 0.3.0-alpha.19 is already in cache
[INFO] testing futures-join-macro-preview-0.3.0-alpha.19 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate futures-join-macro-preview 0.3.0-alpha.19 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate futures-join-macro-preview 0.3.0-alpha.19 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fbb2997ce34c3141e81bc7df35d1651e8accbdd16ef1e82fecff4c491a06ff37
[INFO] running `"docker" "start" "-a" "fbb2997ce34c3141e81bc7df35d1651e8accbdd16ef1e82fecff4c491a06ff37"`
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(rust_2018_idioms, unreachable_pub)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.52s
[INFO] running `"docker" "inspect" "fbb2997ce34c3141e81bc7df35d1651e8accbdd16ef1e82fecff4c491a06ff37"`
[INFO] running `"docker" "rm" "-f" "fbb2997ce34c3141e81bc7df35d1651e8accbdd16ef1e82fecff4c491a06ff37"`
[INFO] [stdout] fbb2997ce34c3141e81bc7df35d1651e8accbdd16ef1e82fecff4c491a06ff37
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4e50d532b2ae4c79d4def24bd0452738b553d9627cb745e0e8ac3f8195d55086
[INFO] running `"docker" "start" "-a" "4e50d532b2ae4c79d4def24bd0452738b553d9627cb745e0e8ac3f8195d55086"`
[INFO] [stderr]    Compiling futures-join-macro-preview v0.3.0-alpha.19 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(rust_2018_idioms, unreachable_pub)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(rust_2018_idioms, unreachable_pub)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "4e50d532b2ae4c79d4def24bd0452738b553d9627cb745e0e8ac3f8195d55086"`
[INFO] running `"docker" "rm" "-f" "4e50d532b2ae4c79d4def24bd0452738b553d9627cb745e0e8ac3f8195d55086"`
[INFO] [stdout] 4e50d532b2ae4c79d4def24bd0452738b553d9627cb745e0e8ac3f8195d55086
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 472c3b9712b9f53206a4e495eabbbd7b8efa29beb403e39408bb8b711b32a396
[INFO] running `"docker" "start" "-a" "472c3b9712b9f53206a4e495eabbbd7b8efa29beb403e39408bb8b711b32a396"`
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(rust_2018_idioms, unreachable_pub)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused extern crate
[INFO] [stderr]  --> src/lib.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | extern crate proc_macro;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^ help: remove it
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/lib.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 | #![warn(rust_2018_idioms, unreachable_pub)]
[INFO] [stderr]   |         ^^^^^^^^^^^^^^^^
[INFO] [stderr]   = note: `#[warn(unused_extern_crates)]` implied by `#[warn(rust_2018_idioms)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/futures_join_macro-d898136a83bd8e4d
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests futures_join_macro
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "472c3b9712b9f53206a4e495eabbbd7b8efa29beb403e39408bb8b711b32a396"`
[INFO] running `"docker" "rm" "-f" "472c3b9712b9f53206a4e495eabbbd7b8efa29beb403e39408bb8b711b32a396"`
[INFO] [stdout] 472c3b9712b9f53206a4e495eabbbd7b8efa29beb403e39408bb8b711b32a396