[INFO] crate dumb-exec 0.0.7 is already in cache
[INFO] testing dumb-exec-0.0.7 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate dumb-exec 0.0.7 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate dumb-exec 0.0.7 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dumb-exec 0.0.7
[INFO] finished tweaking crates.io crate dumb-exec 0.0.7
[INFO] tweaked toml for crates.io crate dumb-exec 0.0.7 written to /workspace/builds/worker-2/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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 82342d88b54f71d54a406ccd01e7a64aa6bc84969f527afb5d40f620a0e4e89d
[INFO] running `"docker" "start" "-a" "82342d88b54f71d54a406ccd01e7a64aa6bc84969f527afb5d40f620a0e4e89d"`
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-io-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling futures-sink-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-channel-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-util-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-executor-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling futures-preview v0.3.0-alpha.18
[INFO] [stderr]    Compiling dumb-exec v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `futures::task::LocalWaker`
[INFO] [stderr]   --> src/lib.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 | use futures::task::{LocalSpawn, LocalWaker, Poll, Spawn, SpawnError};
[INFO] [stderr]    |                                 ^^^^^^^^^^ no `LocalWaker` in `task`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved imports `futures::task::LocalWaker`, `futures::task::UnsafeWake`
[INFO] [stderr]   --> src/cached.rs:11:33
[INFO] [stderr]    |
[INFO] [stderr] 11 | use futures::task::{LocalSpawn, LocalWaker, Poll, Spawn, SpawnError, UnsafeWake, Waker};
[INFO] [stderr]    |                                 ^^^^^^^^^^ no `LocalWaker` in `task` ^^^^^^^^^^ no `UnsafeWake` in `task`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `futures::task::UnsafeWake`
[INFO] [stderr]  --> src/wake.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use futures::task::{UnsafeWake, Waker};
[INFO] [stderr]   |                     ^^^^^^^^^^ no `UnsafeWake` in `task`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `dumb-exec`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "82342d88b54f71d54a406ccd01e7a64aa6bc84969f527afb5d40f620a0e4e89d"`
[INFO] running `"docker" "rm" "-f" "82342d88b54f71d54a406ccd01e7a64aa6bc84969f527afb5d40f620a0e4e89d"`
[INFO] [stdout] 82342d88b54f71d54a406ccd01e7a64aa6bc84969f527afb5d40f620a0e4e89d