[INFO] cloning repository https://github.com/l4l/habr-async-migrations
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/l4l/habr-async-migrations" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl4l%2Fhabr-async-migrations", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl4l%2Fhabr-async-migrations'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0233c376ad1f37152a47ae1a348cfadbc097b508
[INFO] checking l4l/habr-async-migrations against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fl4l%2Fhabr-async-migrations" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/l4l/habr-async-migrations on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/l4l/habr-async-migrations
[INFO] finished tweaking git repo https://github.com/l4l/habr-async-migrations
[INFO] tweaked toml for git repo https://github.com/l4l/habr-async-migrations written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/l4l/habr-async-migrations 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88f839197174204092216f749287a42d6532d8a95a9db4b65c70304c6ce35130
[INFO] running `Command { std: "docker" "start" "-a" "88f839197174204092216f749287a42d6532d8a95a9db4b65c70304c6ce35130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88f839197174204092216f749287a42d6532d8a95a9db4b65c70304c6ce35130", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88f839197174204092216f749287a42d6532d8a95a9db4b65c70304c6ce35130", kill_on_drop: false }`
[INFO] [stdout] 88f839197174204092216f749287a42d6532d8a95a9db4b65c70304c6ce35130
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6ca140a7930827a0162d748197e0b22d5b586b91bbe5ad92d376b76364b1efb4
[INFO] running `Command { std: "docker" "start" "-a" "6ca140a7930827a0162d748197e0b22d5b586b91bbe5ad92d376b76364b1efb4", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tracing-attributes v0.1.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
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[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]     Checking tokio-executor v0.2.0-alpha.6
[INFO] [stderr]     Checking pin-project v0.4.5
[INFO] [stderr]     Checking tokio-io v0.2.0-alpha.6
[INFO] [stderr]     Checking futures-util v0.3.1
[INFO] [stderr]     Checking tokio-codec v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-net v0.2.0-alpha.6
[INFO] [stderr]     Checking tokio-fs v0.2.0-alpha.6
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[INFO] [stderr]     Checking new-async v0.1.0 (/opt/rustwide/workdir/new-async)
[INFO] [stderr]     Checking interop v0.1.0 (/opt/rustwide/workdir/interop)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> new-async/src/main.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let mut this = self.project();
[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: unused borrow that must be used
[INFO] [stdout]   --> new-async/src/main.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> new-async/src/main.rs:83:13
[INFO] [stdout]    |
[INFO] [stdout] 83 |         let mut this = self.project();
[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: unused borrow that must be used
[INFO] [stdout]   --> new-async/src/main.rs:61:1
[INFO] [stdout]    |
[INFO] [stdout] 61 | #[pin_project]
[INFO] [stdout]    | ^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this warning originates in the derive macro `::pin_project::__private::__PinProjectInternalDerive` (in Nightly builds, run with -Z macro-backtrace for more info)
[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` profile [unoptimized + debuginfo] target(s) in 6.12s
[INFO] running `Command { std: "docker" "inspect" "6ca140a7930827a0162d748197e0b22d5b586b91bbe5ad92d376b76364b1efb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ca140a7930827a0162d748197e0b22d5b586b91bbe5ad92d376b76364b1efb4", kill_on_drop: false }`
[INFO] [stdout] 6ca140a7930827a0162d748197e0b22d5b586b91bbe5ad92d376b76364b1efb4