[INFO] cloning repository https://github.com/eugenesvk/helpFuturesSignals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/eugenesvk/helpFuturesSignals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenesvk%2FhelpFuturesSignals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenesvk%2FhelpFuturesSignals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78b11808fa4d2874fad5e1b0e5c274b59b1efb0d
[INFO] checking eugenesvk/helpFuturesSignals against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Feugenesvk%2FhelpFuturesSignals" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/eugenesvk/helpFuturesSignals
[INFO] finished tweaking git repo https://github.com/eugenesvk/helpFuturesSignals
[INFO] tweaked toml for git repo https://github.com/eugenesvk/helpFuturesSignals written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/eugenesvk/helpFuturesSignals on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/eugenesvk/helpFuturesSignals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9186937e6cded7a88302697bca35da1877eff61c0c511c0f3e5e4f34e05e9d5a
[INFO] running `Command { std: "docker" "start" "-a" "9186937e6cded7a88302697bca35da1877eff61c0c511c0f3e5e4f34e05e9d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9186937e6cded7a88302697bca35da1877eff61c0c511c0f3e5e4f34e05e9d5a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9186937e6cded7a88302697bca35da1877eff61c0c511c0f3e5e4f34e05e9d5a", kill_on_drop: false }`
[INFO] [stdout] 9186937e6cded7a88302697bca35da1877eff61c0c511c0f3e5e4f34e05e9d5a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a1ed371011bc2cba56fb6dd3ad788a44cc67ef7c537e8d72a152de5e0a29ba5
[INFO] running `Command { std: "docker" "start" "-a" "5a1ed371011bc2cba56fb6dd3ad788a44cc67ef7c537e8d72a152de5e0a29ba5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling futures-core v0.3.21
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]     Checking futures-sink v0.3.21
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking slab v0.4.6
[INFO] [stderr]     Checking futures-io v0.3.21
[INFO] [stderr]     Checking pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]     Checking discard v1.0.4
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]    Compiling futures-macro v0.3.21
[INFO] [stderr]    Compiling pin-project-internal v1.0.10
[INFO] [stderr]     Checking pin-project v1.0.10
[INFO] [stderr]     Checking futures-executor v0.3.21
[INFO] [stderr]     Checking futures-signals v0.3.28
[INFO] [stderr]     Checking futures v0.3.21
[INFO] [stderr]     Checking futures_signals_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0429]: `self` imports are only allowed within a { } list
[INFO] [stdout]    --> src/p1.rs:144:48
[INFO] [stdout]     |
[INFO] [stdout] 144 |   use futures::{pin_mut, future::Either, future::self};
[INFO] [stdout]     |                                                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing the module directly
[INFO] [stdout]     |
[INFO] [stdout] 144 -   use futures::{pin_mut, future::Either, future::self};
[INFO] [stdout] 144 +   use futures::{pin_mut, future::Either, future};
[INFO] [stdout]     |
[INFO] [stdout] help: alternatively, use the multi-path `use` syntax to import `self`
[INFO] [stdout]     |
[INFO] [stdout] 144 |   use futures::{pin_mut, future::Either, future::{self}};
[INFO] [stdout]     |                                                  +    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0429]: `self` imports are only allowed within a { } list
[INFO] [stdout]    --> src/p1.rs:144:48
[INFO] [stdout]     |
[INFO] [stdout] 144 |   use futures::{pin_mut, future::Either, future::self};
[INFO] [stdout]     |                                                ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing the module directly
[INFO] [stdout]     |
[INFO] [stdout] 144 -   use futures::{pin_mut, future::Either, future::self};
[INFO] [stdout] 144 +   use futures::{pin_mut, future::Either, future};
[INFO] [stdout]     |
[INFO] [stdout] help: alternatively, use the multi-path `use` syntax to import `self`
[INFO] [stdout]     |
[INFO] [stdout] 144 |   use futures::{pin_mut, future::Either, future::{self}};
[INFO] [stdout]     |                                                  +    +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0429`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures_signals_learning` (bin "futures_signals_learning" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0429`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures_signals_learning` (bin "futures_signals_learning") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "5a1ed371011bc2cba56fb6dd3ad788a44cc67ef7c537e8d72a152de5e0a29ba5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a1ed371011bc2cba56fb6dd3ad788a44cc67ef7c537e8d72a152de5e0a29ba5", kill_on_drop: false }`
[INFO] [stdout] 5a1ed371011bc2cba56fb6dd3ad788a44cc67ef7c537e8d72a152de5e0a29ba5