[INFO] crate futures-util 0.3.4 is already in cache
[INFO] checking futures-util-0.3.4 against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] extracting crate futures-util 0.3.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate futures-util 0.3.4 on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate futures-util 0.3.4
[INFO] finished tweaking crates.io crate futures-util 0.3.4
[INFO] tweaked toml for crates.io crate futures-util 0.3.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 03e77b309ed0a75bf8781e3f8d6f1af4faabb2e5da354a7974fb7106e4c51a2e
[INFO] running `"docker" "start" "-a" "03e77b309ed0a75bf8781e3f8d6f1af4faabb2e5da354a7974fb7106e4c51a2e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.4
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]     Checking futures-util v0.3.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `futures_test`
[INFO] [stderr]   --> src/future/try_future/try_chain.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |     use futures_test::task::noop_context;
[INFO] [stderr]    |         ^^^^^^^^^^^^ use of undeclared type or module `futures_test`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `noop_context` in this scope
[INFO] [stderr]   --> src/future/try_future/try_chain.rs:93:22
[INFO] [stderr]    |
[INFO] [stderr] 93 |         let mut cx = noop_context();
[INFO] [stderr]    |                      ^^^^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `futures-util`.
[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" "03e77b309ed0a75bf8781e3f8d6f1af4faabb2e5da354a7974fb7106e4c51a2e"`
[INFO] running `"docker" "rm" "-f" "03e77b309ed0a75bf8781e3f8d6f1af4faabb2e5da354a7974fb7106e4c51a2e"`
[INFO] [stdout] 03e77b309ed0a75bf8781e3f8d6f1af4faabb2e5da354a7974fb7106e4c51a2e