[INFO] fetching crate handoff 1.0.2...
[INFO] testing handoff-1.0.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate handoff 1.0.2 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate handoff 1.0.2
[INFO] finished tweaking crates.io crate handoff 1.0.2
[INFO] tweaked toml for crates.io crate handoff 1.0.2 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate handoff 1.0.2 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--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]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.12)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indent_write v2.2.0
[INFO] [stderr]   Downloaded pinned-aliasable v0.1.3
[INFO] [stderr]   Downloaded cool_asserts v2.0.3
[INFO] [stderr]   Downloaded twinsies v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e24f077594da1b476a4354a6ea3d96334a091a34beba715d1cd7ec433ddae76
[INFO] running `Command { std: "docker" "start" "-a" "0e24f077594da1b476a4354a6ea3d96334a091a34beba715d1cd7ec433ddae76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e24f077594da1b476a4354a6ea3d96334a091a34beba715d1cd7ec433ddae76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e24f077594da1b476a4354a6ea3d96334a091a34beba715d1cd7ec433ddae76", kill_on_drop: false }`
[INFO] [stdout] 0e24f077594da1b476a4354a6ea3d96334a091a34beba715d1cd7ec433ddae76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] a317cac449bcc23af08e208048aa312b2a36aaa2e8a7bbb8e1d552ba7b6588aa
[INFO] running `Command { std: "docker" "start" "-a" "a317cac449bcc23af08e208048aa312b2a36aaa2e8a7bbb8e1d552ba7b6588aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling pin-project-lite v0.2.16
[INFO] [stderr]    Compiling twinsies v1.2.1
[INFO] [stderr]    Compiling pinned-aliasable v0.1.3
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling handoff v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:530:5
[INFO] [stdout]     |
[INFO] [stdout] 530 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.92s
[INFO] running `Command { std: "docker" "inspect" "a317cac449bcc23af08e208048aa312b2a36aaa2e8a7bbb8e1d552ba7b6588aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a317cac449bcc23af08e208048aa312b2a36aaa2e8a7bbb8e1d552ba7b6588aa", kill_on_drop: false }`
[INFO] [stdout] a317cac449bcc23af08e208048aa312b2a36aaa2e8a7bbb8e1d552ba7b6588aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 1ccc14074ce6a0bee213da20cf4eb777b0732688e8700283dd3bdba5ace30365
[INFO] running `Command { std: "docker" "start" "-a" "1ccc14074ce6a0bee213da20cf4eb777b0732688e8700283dd3bdba5ace30365", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling slab v0.4.10
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling indent_write v2.2.0
[INFO] [stderr]    Compiling cool_asserts v2.0.3
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio v1.45.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling handoff v1.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:530:5
[INFO] [stdout]     |
[INFO] [stdout] 530 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:130:5
[INFO] [stdout]     |
[INFO] [stdout] 130 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stdout]    --> src/lib.rs:530:5
[INFO] [stdout]     |
[INFO] [stdout] 530 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 10.67s
[INFO] running `Command { std: "docker" "inspect" "1ccc14074ce6a0bee213da20cf4eb777b0732688e8700283dd3bdba5ace30365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ccc14074ce6a0bee213da20cf4eb777b0732688e8700283dd3bdba5ace30365", kill_on_drop: false }`
[INFO] [stdout] 1ccc14074ce6a0bee213da20cf4eb777b0732688e8700283dd3bdba5ace30365
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b64be8be0cfb7bfb2e86c64518bbfe991e3371b4f802e3d861d88c0758560b7f
[INFO] running `Command { std: "docker" "start" "-a" "b64be8be0cfb7bfb2e86c64518bbfe991e3371b4f802e3d861d88c0758560b7f", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/lib.rs:130:5
[INFO] [stderr]     |
[INFO] [stderr] 130 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` has no effect when applied to a provided trait method
[INFO] [stderr]    --> src/lib.rs:530:5
[INFO] [stderr]     |
[INFO] [stderr] 530 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `handoff` (lib) generated 2 warnings
[INFO] [stderr] warning: `handoff` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/handoff-89d71dcd308b7257)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::receiver_close_while_waiting ... ok
[INFO] [stdout] test tests::basic_sender_close ... ok
[INFO] [stdout] test tests::taskless ... ok
[INFO] [stdout] test tests::sender_close_while_waiting ... ok
[INFO] [stdout] test tests::basic_receiver_close ... ok
[INFO] [stdout] test tests::sender_cancels ... ok
[INFO] [stdout] test tests::basic_test ... ok
[INFO] [stdout] test tests::sync_test_two_threads ... ok
[INFO] [stdout] test tests::multi_thread_tasks ... ok
[INFO] [stdout] test tests::sync_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b64be8be0cfb7bfb2e86c64518bbfe991e3371b4f802e3d861d88c0758560b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64be8be0cfb7bfb2e86c64518bbfe991e3371b4f802e3d861d88c0758560b7f", kill_on_drop: false }`
[INFO] [stdout] b64be8be0cfb7bfb2e86c64518bbfe991e3371b4f802e3d861d88c0758560b7f