[INFO] fetching crate futures-micro 1.0.0-rc0...
[INFO] checking futures-micro-1.0.0-rc0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate futures-micro 1.0.0-rc0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate futures-micro 1.0.0-rc0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-micro 1.0.0-rc0
[INFO] finished tweaking crates.io crate futures-micro 1.0.0-rc0
[INFO] tweaked toml for crates.io crate futures-micro 1.0.0-rc0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 12 packages
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v0.1.11 (latest: v2.3.0)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-lite v0.1.11
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2a4451a0391cff9eff93e198812c137c8a8b5ac93fe853a4abed5fbd3c21581
[INFO] running `Command { std: "docker" "start" "-a" "f2a4451a0391cff9eff93e198812c137c8a8b5ac93fe853a4abed5fbd3c21581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2a4451a0391cff9eff93e198812c137c8a8b5ac93fe853a4abed5fbd3c21581", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a4451a0391cff9eff93e198812c137c8a8b5ac93fe853a4abed5fbd3c21581", kill_on_drop: false }`
[INFO] [stdout] f2a4451a0391cff9eff93e198812c137c8a8b5ac93fe853a4abed5fbd3c21581
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 486db05195b0d775e7338fbf5b4e49fd3307094371757fb9fcca468c2573503d
[INFO] running `Command { std: "docker" "start" "-a" "486db05195b0d775e7338fbf5b4e49fd3307094371757fb9fcca468c2573503d", kill_on_drop: false }`
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking futures-micro v1.0.0-rc0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stdout] warning: the item `poll_fn` is imported redundantly
[INFO] [stdout]  --> tests/test.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_micro::{poll_fn, prelude::*};
[INFO] [stdout]   |                     ^^^^^^^  ---------- the item `poll_fn` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Poll` is imported redundantly
[INFO] [stdout]  --> tests/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_micro::{poll_fn, prelude::*};
[INFO] [stdout]   |                              ---------- the item `Poll` is already imported here
[INFO] [stdout] 6 | use std::task::Poll;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.31s
[INFO] running `Command { std: "docker" "inspect" "486db05195b0d775e7338fbf5b4e49fd3307094371757fb9fcca468c2573503d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "486db05195b0d775e7338fbf5b4e49fd3307094371757fb9fcca468c2573503d", kill_on_drop: false }`
[INFO] [stdout] 486db05195b0d775e7338fbf5b4e49fd3307094371757fb9fcca468c2573503d
[INFO] checking futures-micro-1.0.0-rc0 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] extracting crate futures-micro 1.0.0-rc0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate futures-micro 1.0.0-rc0 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures-micro 1.0.0-rc0
[INFO] finished tweaking crates.io crate futures-micro 1.0.0-rc0
[INFO] tweaked toml for crates.io crate futures-micro 1.0.0-rc0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d610fb652a4138fcf49c5aabd3c8f73a4a579c069d0d5a5fca1575b574230115
[INFO] running `Command { std: "docker" "start" "-a" "d610fb652a4138fcf49c5aabd3c8f73a4a579c069d0d5a5fca1575b574230115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d610fb652a4138fcf49c5aabd3c8f73a4a579c069d0d5a5fca1575b574230115", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d610fb652a4138fcf49c5aabd3c8f73a4a579c069d0d5a5fca1575b574230115", kill_on_drop: false }`
[INFO] [stdout] d610fb652a4138fcf49c5aabd3c8f73a4a579c069d0d5a5fca1575b574230115
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff246bd21520462c60f9f1a911ba0e750c58b45151257736ca5c4b9bce0aed6d
[INFO] running `Command { std: "docker" "start" "-a" "ff246bd21520462c60f9f1a911ba0e750c58b45151257736ca5c4b9bce0aed6d", kill_on_drop: false }`
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking futures-micro v1.0.0-rc0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-lite v0.1.11
[INFO] [stdout] warning: the item `poll_fn` is imported redundantly
[INFO] [stdout]  --> tests/test.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_micro::{poll_fn, prelude::*};
[INFO] [stdout]   |                     ^^^^^^^  ---------- the item `poll_fn` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Poll` is imported redundantly
[INFO] [stdout]  --> tests/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures_micro::{poll_fn, prelude::*};
[INFO] [stdout]   |                              ---------- the item `Poll` is already imported here
[INFO] [stdout] 6 | use std::task::Poll;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "ff246bd21520462c60f9f1a911ba0e750c58b45151257736ca5c4b9bce0aed6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff246bd21520462c60f9f1a911ba0e750c58b45151257736ca5c4b9bce0aed6d", kill_on_drop: false }`
[INFO] [stdout] ff246bd21520462c60f9f1a911ba0e750c58b45151257736ca5c4b9bce0aed6d