[INFO] fetching crate libp2prs-runtime 0.3.0...
[INFO] checking libp2prs-runtime-0.3.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate libp2prs-runtime 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate libp2prs-runtime 0.3.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2prs-runtime 0.3.0
[INFO] finished tweaking crates.io crate libp2prs-runtime 0.3.0
[INFO] tweaked toml for crates.io crate libp2prs-runtime 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate libp2prs-runtime 0.3.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mio v0.7.11
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.73
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[INFO] [stderr]   Downloaded tokio v1.5.0
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[INFO] [stderr]   Downloaded async-std v1.9.0
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[INFO] [stderr]   Downloaded syn v1.0.70
[INFO] [stderr]   Downloaded cc v1.0.67
[INFO] [stderr]   Downloaded wepoll-sys v3.0.1
[INFO] [stderr]   Downloaded polling v2.0.3
[INFO] [stderr]   Downloaded socket2 v0.4.0
[INFO] [stderr]   Downloaded vec-arena v1.1.0
[INFO] [stderr]   Downloaded async-io v1.4.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.3
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[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded futures-channel v0.3.14
[INFO] [stderr]   Downloaded futures-core v0.3.14
[INFO] [stderr]   Downloaded futures-io v0.3.14
[INFO] [stderr]   Downloaded futures-task v0.3.14
[INFO] [stderr]   Downloaded slab v0.4.3
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded once_cell v1.7.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.26
[INFO] [stderr]   Downloaded quote v1.0.9
[INFO] [stderr]   Downloaded value-bag v1.0.0-alpha.6
[INFO] [stderr]   Downloaded pin-project-lite v0.2.6
[INFO] [stderr]   Downloaded futures-sink v0.3.14
[INFO] [stderr]   Downloaded ctor v0.1.20
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9da9e4db7004957b35f2dccc24fcf15eafb0aabdc833e5cd1cda2ae822f95409
[INFO] running `Command { std: "docker" "start" "-a" "9da9e4db7004957b35f2dccc24fcf15eafb0aabdc833e5cd1cda2ae822f95409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9da9e4db7004957b35f2dccc24fcf15eafb0aabdc833e5cd1cda2ae822f95409", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da9e4db7004957b35f2dccc24fcf15eafb0aabdc833e5cd1cda2ae822f95409", kill_on_drop: false }`
[INFO] [stdout] 9da9e4db7004957b35f2dccc24fcf15eafb0aabdc833e5cd1cda2ae822f95409
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d994baf2e1a6c74961d535061c19ad7bdaee0faf22f2aefd6df5c4f4d0d6ada
[INFO] running `Command { std: "docker" "start" "-a" "1d994baf2e1a6c74961d535061c19ad7bdaee0faf22f2aefd6df5c4f4d0d6ada", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking libp2prs-runtime v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `libp2prs_runtime::task`
[INFO] [stdout]   --> examples/task_simple.rs:1:5
[INFO] [stdout]    |
[INFO] [stdout] 1  | use libp2prs_runtime::task;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^ no `task` in the root
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> /opt/rustwide/workdir/src/lib.rs:41:31
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub use self::async_std::{task, net};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout]    = note: the item is gated behind the `async-std` feature
[INFO] [stdout] help: consider importing one of these items instead
[INFO] [stdout]    |
[INFO] [stdout] 1  | use core::task;
[INFO] [stdout]    |     ~~~~~~~~~~
[INFO] [stdout] 1  | use futures::task;
[INFO] [stdout]    |     ~~~~~~~~~~~~~
[INFO] [stdout] 1  | use std::task;
[INFO] [stdout]    |     ~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libp2prs-runtime` (example "task_simple") due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1d994baf2e1a6c74961d535061c19ad7bdaee0faf22f2aefd6df5c4f4d0d6ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d994baf2e1a6c74961d535061c19ad7bdaee0faf22f2aefd6df5c4f4d0d6ada", kill_on_drop: false }`
[INFO] [stdout] 1d994baf2e1a6c74961d535061c19ad7bdaee0faf22f2aefd6df5c4f4d0d6ada
[INFO] checking libp2prs-runtime-0.3.0 against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-2
[INFO] extracting crate libp2prs-runtime 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate libp2prs-runtime 0.3.0 on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2prs-runtime 0.3.0
[INFO] finished tweaking crates.io crate libp2prs-runtime 0.3.0
[INFO] tweaked toml for crates.io crate libp2prs-runtime 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate libp2prs-runtime 0.3.0 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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 374804aa33df547eec9d5a879a6ac4231c1863395839eb1952fba5c4615b87a2
[INFO] running `Command { std: "docker" "start" "-a" "374804aa33df547eec9d5a879a6ac4231c1863395839eb1952fba5c4615b87a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "374804aa33df547eec9d5a879a6ac4231c1863395839eb1952fba5c4615b87a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "374804aa33df547eec9d5a879a6ac4231c1863395839eb1952fba5c4615b87a2", kill_on_drop: false }`
[INFO] [stdout] 374804aa33df547eec9d5a879a6ac4231c1863395839eb1952fba5c4615b87a2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c84187cf8a6d63cf7d695da0d4d7341412e51494c6df1fbe12e3b6f4f56c2bf3
[INFO] running `Command { std: "docker" "start" "-a" "c84187cf8a6d63cf7d695da0d4d7341412e51494c6df1fbe12e3b6f4f56c2bf3", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] skipping non-2021 edition `2018`
[INFO] running `Command { std: "docker" "inspect" "c84187cf8a6d63cf7d695da0d4d7341412e51494c6df1fbe12e3b6f4f56c2bf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c84187cf8a6d63cf7d695da0d4d7341412e51494c6df1fbe12e3b6f4f56c2bf3", kill_on_drop: false }`
[INFO] [stdout] c84187cf8a6d63cf7d695da0d4d7341412e51494c6df1fbe12e3b6f4f56c2bf3