[INFO] fetching crate streamline 0.0.7...
[INFO] checking streamline-0.0.7 against master#339f574809bf8e4166b8de3cdbe7df181d37af3d for pr-71896
[INFO] extracting crate streamline 0.0.7 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate streamline 0.0.7 on toolchain 339f574809bf8e4166b8de3cdbe7df181d37af3d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+339f574809bf8e4166b8de3cdbe7df181d37af3d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate streamline 0.0.7
[INFO] finished tweaking crates.io crate streamline 0.0.7
[INFO] tweaked toml for crates.io crate streamline 0.0.7 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] a018e3a4c71e83aa370ce39e6f37edbec837bbfea15c68e25d56e37a722ccb07
[INFO] running `"docker" "start" "-a" "a018e3a4c71e83aa370ce39e6f37edbec837bbfea15c68e25d56e37a722ccb07"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking bytes v0.5.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking tokio v0.2.20
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling syn v1.0.19
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking streamline v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/streamline.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 | / ...                   std::mem::replace(
[INFO] [stderr] 78 | | ...                       &mut state_machine.cancellation_handle,
[INFO] [stderr] 79 | | ...                       Some(reciever),
[INFO] [stderr] 80 | | ...                   );
[INFO] [stderr]    | |________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]   --> src/streamline.rs:77:33
[INFO] [stderr]    |
[INFO] [stderr] 77 | / ...                   std::mem::replace(
[INFO] [stderr] 78 | | ...                       &mut state_machine.cancellation_handle,
[INFO] [stderr] 79 | | ...                       Some(reciever),
[INFO] [stderr] 80 | | ...                   );
[INFO] [stderr]    | |________________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.38s
[INFO] running `"docker" "inspect" "a018e3a4c71e83aa370ce39e6f37edbec837bbfea15c68e25d56e37a722ccb07"`
[INFO] running `"docker" "rm" "-f" "a018e3a4c71e83aa370ce39e6f37edbec837bbfea15c68e25d56e37a722ccb07"`
[INFO] [stdout] a018e3a4c71e83aa370ce39e6f37edbec837bbfea15c68e25d56e37a722ccb07