[INFO] fetching crate sender-sink 0.2.0... [INFO] testing sender-sink-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] extracting crate sender-sink 0.2.0 into /workspace/builds/worker-11/source [INFO] validating manifest of crates.io crate sender-sink 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate sender-sink 0.2.0 [INFO] finished tweaking crates.io crate sender-sink 0.2.0 [INFO] tweaked toml for crates.io crate sender-sink 0.2.0 written to /workspace/builds/worker-11/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aef6da5afa57d32598baf4ac203ea601e9d0b7a11219320f21629c9e91c79c6e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "aef6da5afa57d32598baf4ac203ea601e9d0b7a11219320f21629c9e91c79c6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aef6da5afa57d32598baf4ac203ea601e9d0b7a11219320f21629c9e91c79c6e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aef6da5afa57d32598baf4ac203ea601e9d0b7a11219320f21629c9e91c79c6e", kill_on_drop: false }` [INFO] [stdout] aef6da5afa57d32598baf4ac203ea601e9d0b7a11219320f21629c9e91c79c6e [INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] da168b49c3094b38c1f515cd68bbc83e65515a866c5b7cbf2eeaadb28f47ec20 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "da168b49c3094b38c1f515cd68bbc83e65515a866c5b7cbf2eeaadb28f47ec20", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.32 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling futures-channel v0.3.17 [INFO] [stderr] Compiling slab v0.4.5 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling tokio v1.14.0 [INFO] [stderr] Compiling quote v1.0.10 [INFO] [stderr] Compiling syn v1.0.81 [INFO] [stderr] Compiling futures v0.3.17 [INFO] [stderr] Compiling tokio-macros v1.6.0 [INFO] [stderr] Compiling sender-sink v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/wrappers/mpsc_sink.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | &self.sender.take(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = &self.sender.take(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 28.78s [INFO] running `Command { std: "docker" "inspect" "da168b49c3094b38c1f515cd68bbc83e65515a866c5b7cbf2eeaadb28f47ec20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da168b49c3094b38c1f515cd68bbc83e65515a866c5b7cbf2eeaadb28f47ec20", kill_on_drop: false }` [INFO] [stdout] da168b49c3094b38c1f515cd68bbc83e65515a866c5b7cbf2eeaadb28f47ec20 [INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 97c38ebb5097af38f2304c9647bb4b19f1a27b15d816815c077db83d19abb060 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "97c38ebb5097af38f2304c9647bb4b19f1a27b15d816815c077db83d19abb060", kill_on_drop: false }` [INFO] [stderr] Compiling sender-sink v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/wrappers/mpsc_sink.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | &self.sender.take(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = &self.sender.take(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/wrappers/mpsc_sink.rs:22:21 [INFO] [stdout] | [INFO] [stdout] 22 | &self.sender.take(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 22 | let _ = &self.sender.take(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `Command { std: "docker" "inspect" "97c38ebb5097af38f2304c9647bb4b19f1a27b15d816815c077db83d19abb060", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "97c38ebb5097af38f2304c9647bb4b19f1a27b15d816815c077db83d19abb060", kill_on_drop: false }` [INFO] [stdout] 97c38ebb5097af38f2304c9647bb4b19f1a27b15d816815c077db83d19abb060 [INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 887ed190238d19e737b277f91b2b8c832882182c3fa7fcf8ceddf11759ea60d8 [INFO] running `Command { std: "docker" "start" "-a" "887ed190238d19e737b277f91b2b8c832882182c3fa7fcf8ceddf11759ea60d8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused borrow that must be used [INFO] [stderr] --> src/wrappers/mpsc_sink.rs:22:21 [INFO] [stderr] | [INFO] [stderr] 22 | &self.sender.take(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 22 | let _ = &self.sender.take(); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `sender-sink` (lib) generated 1 warning [INFO] [stderr] warning: `sender-sink` (lib test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.13s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/sender_sink-772f2cdef29ceed7) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test wrappers::mpsc_sink::test::it_closes_the_sender ... ok [INFO] [stdout] test wrappers::mpsc_sink::test::it_sends_multiple_times ... ok [INFO] [stdout] test wrappers::mpsc_sink::test::it_fails_if_receiver_closed ... ok [INFO] [stderr] Doc-tests sender-sink [INFO] [stdout] test wrappers::mpsc_sink::test::it_sends_to_the_sender ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "887ed190238d19e737b277f91b2b8c832882182c3fa7fcf8ceddf11759ea60d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "887ed190238d19e737b277f91b2b8c832882182c3fa7fcf8ceddf11759ea60d8", kill_on_drop: false }` [INFO] [stdout] 887ed190238d19e737b277f91b2b8c832882182c3fa7fcf8ceddf11759ea60d8