[INFO] fetching crate stream-kmerge 0.2.0...
[INFO] testing stream-kmerge-0.2.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate stream-kmerge 0.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate stream-kmerge 0.2.0
[INFO] finished tweaking crates.io crate stream-kmerge 0.2.0
[INFO] tweaked toml for crates.io crate stream-kmerge 0.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stream-kmerge 0.2.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 51 packages to latest compatible versions
[INFO] [stderr]       Adding binary-heap-plus v0.4.1 (available: v0.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded compare v0.1.0
[INFO] [stderr]   Downloaded binary-heap-plus v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1412a798fd0ee00a9707a82b4e26bb7b792bb12fc34e1240fd378e73d53dfb8
[INFO] running `Command { std: "docker" "start" "-a" "a1412a798fd0ee00a9707a82b4e26bb7b792bb12fc34e1240fd378e73d53dfb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1412a798fd0ee00a9707a82b4e26bb7b792bb12fc34e1240fd378e73d53dfb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1412a798fd0ee00a9707a82b4e26bb7b792bb12fc34e1240fd378e73d53dfb8", kill_on_drop: false }`
[INFO] [stdout] a1412a798fd0ee00a9707a82b4e26bb7b792bb12fc34e1240fd378e73d53dfb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a3eb4c6de9e6f7c19bb0f15acc82226de8f699753303a15caac28925e070efe1
[INFO] running `Command { std: "docker" "start" "-a" "a3eb4c6de9e6f7c19bb0f15acc82226de8f699753303a15caac28925e070efe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling compare v0.1.0
[INFO] [stderr]    Compiling binary-heap-plus v0.4.1
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling stream-kmerge v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on type aliases
[INFO] [stdout]   --> src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.21s
[INFO] running `Command { std: "docker" "inspect" "a3eb4c6de9e6f7c19bb0f15acc82226de8f699753303a15caac28925e070efe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3eb4c6de9e6f7c19bb0f15acc82226de8f699753303a15caac28925e070efe1", kill_on_drop: false }`
[INFO] [stdout] a3eb4c6de9e6f7c19bb0f15acc82226de8f699753303a15caac28925e070efe1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bba1373f9df9d9368fe8f2a4cbc49c40c2b4d7a0f25abc4713185f2d3df8ae6d
[INFO] running `Command { std: "docker" "start" "-a" "bba1373f9df9d9368fe8f2a4cbc49c40c2b4d7a0f25abc4713185f2d3df8ae6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling bytes v1.10.1
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling stream-kmerge v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on type aliases
[INFO] [stdout]   --> src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on type aliases
[INFO] [stdout]   --> src/lib.rs:48:1
[INFO] [stdout]    |
[INFO] [stdout] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 17.28s
[INFO] running `Command { std: "docker" "inspect" "bba1373f9df9d9368fe8f2a4cbc49c40c2b4d7a0f25abc4713185f2d3df8ae6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bba1373f9df9d9368fe8f2a4cbc49c40c2b4d7a0f25abc4713185f2d3df8ae6d", kill_on_drop: false }`
[INFO] [stdout] bba1373f9df9d9368fe8f2a4cbc49c40c2b4d7a0f25abc4713185f2d3df8ae6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1a8effb8ac8193880403b0b9b9b9ecc39002c1daef606519707d81d5c694f0c8
[INFO] running `Command { std: "docker" "start" "-a" "1a8effb8ac8193880403b0b9b9b9ecc39002c1daef606519707d81d5c694f0c8", kill_on_drop: false }`
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on type aliases
[INFO] [stderr]   --> src/lib.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | #[must_use = "stream adaptors are lazy and do nothing unless consumed"]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = help: `#[must_use]` can be applied to functions, data types, unions, and traits
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `stream-kmerge` (lib) generated 1 warning (run `cargo fix --lib -p stream-kmerge` to apply 1 suggestion)
[INFO] [stderr] warning: `stream-kmerge` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/stream_kmerge-16758186c65d4b64)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test::by ... ok
[INFO] [stdout] test test::by_key ... ok
[INFO] [stdout] test test::sync ... ok
[INFO] [stdout] test test::kmerge_async ... ok
[INFO] [stdout] test test::concurrent_initialization ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests stream_kmerge
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - (line 379) ... ok
[INFO] [stdout] test src/lib.rs - kmerge_by_key (line 141) ... ok
[INFO] [stdout] test src/lib.rs - kmerge (line 95) ... ok
[INFO] [stdout] test src/lib.rs - kmerge_by (line 118) ... ok
[INFO] [stdout] test src/lib.rs - (line 385) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.81s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1a8effb8ac8193880403b0b9b9b9ecc39002c1daef606519707d81d5c694f0c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a8effb8ac8193880403b0b9b9b9ecc39002c1daef606519707d81d5c694f0c8", kill_on_drop: false }`
[INFO] [stdout] 1a8effb8ac8193880403b0b9b9b9ecc39002c1daef606519707d81d5c694f0c8