[INFO] fetching crate flatty-io 0.1.0-rc.6...
[INFO] testing flatty-io-0.1.0-rc.6 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate flatty-io 0.1.0-rc.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate flatty-io 0.1.0-rc.6
[INFO] finished tweaking crates.io crate flatty-io 0.1.0-rc.6
[INFO] tweaked toml for crates.io crate flatty-io 0.1.0-rc.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flatty-io 0.1.0-rc.6 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 74 packages to latest compatible versions
[INFO] [stderr]       Adding async-ringbuf v0.2.1 (available: v0.3.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc40328d951068991d96b982c04c8c3d4b0f8153ea36e436893b17985b0ac190
[INFO] running `Command { std: "docker" "start" "-a" "dc40328d951068991d96b982c04c8c3d4b0f8153ea36e436893b17985b0ac190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc40328d951068991d96b982c04c8c3d4b0f8153ea36e436893b17985b0ac190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc40328d951068991d96b982c04c8c3d4b0f8153ea36e436893b17985b0ac190", kill_on_drop: false }`
[INFO] [stdout] dc40328d951068991d96b982c04c8c3d4b0f8153ea36e436893b17985b0ac190
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c00bd47048234ab0d72e1d918ad14663a2904f5d82f00d56097f73e2827f0c3
[INFO] running `Command { std: "docker" "start" "-a" "2c00bd47048234ab0d72e1d918ad14663a2904f5d82f00d56097f73e2827f0c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling stavec v0.3.0
[INFO] [stderr]    Compiling flatty-base v0.1.0-rc.4
[INFO] [stderr]    Compiling flatty-portable v0.1.0-rc.4
[INFO] [stderr]    Compiling flatty-macros v0.1.0-rc.4
[INFO] [stderr]    Compiling flatty v0.1.0-rc.4
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling flatty-io v0.1.0-rc.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::*`
[INFO] [stdout]  --> src/blocking/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use io::*;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.85s
[INFO] running `Command { std: "docker" "inspect" "2c00bd47048234ab0d72e1d918ad14663a2904f5d82f00d56097f73e2827f0c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c00bd47048234ab0d72e1d918ad14663a2904f5d82f00d56097f73e2827f0c3", kill_on_drop: false }`
[INFO] [stdout] 2c00bd47048234ab0d72e1d918ad14663a2904f5d82f00d56097f73e2827f0c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d4aa4882de7b45691e083366ae83dfff75d50b2e0a5b42994112e0c69c4378c
[INFO] running `Command { std: "docker" "start" "-a" "6d4aa4882de7b45691e083366ae83dfff75d50b2e0a5b42994112e0c69c4378c", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling rustix v1.1.2
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling linux-raw-sys v0.11.0
[INFO] [stderr]    Compiling async-io v2.6.0
[INFO] [stderr]    Compiling value-bag v1.11.1
[INFO] [stderr]    Compiling flatty-macros v0.1.0-rc.4
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling futures-lite v2.6.1
[INFO] [stderr]    Compiling piper v0.2.4
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling ringbuf v0.4.8
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling event-listener v5.4.1
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling ringbuf-blocking v0.1.0-rc.5
[INFO] [stderr]    Compiling flatty v0.1.0-rc.4
[INFO] [stderr]    Compiling async-executor v1.13.3
[INFO] [stderr]    Compiling event-listener-strategy v0.5.4
[INFO] [stderr]    Compiling async-channel v2.5.0
[INFO] [stderr]    Compiling async-lock v3.4.1
[INFO] [stderr]    Compiling blocking v1.6.2
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling async-ringbuf v0.2.1
[INFO] [stderr]    Compiling flatty-io v0.1.0-rc.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `io::*`
[INFO] [stdout]  --> src/blocking/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use io::*;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling polling v3.11.0
[INFO] [stderr]    Compiling async-global-executor v2.4.1
[INFO] [stderr]    Compiling async-std v1.13.2
[INFO] [stdout] warning: unused import: `io::*`
[INFO] [stdout]  --> src/blocking/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use io::*;
[INFO] [stdout]   |         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 15.61s
[INFO] running `Command { std: "docker" "inspect" "6d4aa4882de7b45691e083366ae83dfff75d50b2e0a5b42994112e0c69c4378c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d4aa4882de7b45691e083366ae83dfff75d50b2e0a5b42994112e0c69c4378c", kill_on_drop: false }`
[INFO] [stdout] 6d4aa4882de7b45691e083366ae83dfff75d50b2e0a5b42994112e0c69c4378c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aaff5fcf374215abc6a8ac868efc9a653566882dcd4825dcdfb16a1be4731968
[INFO] running `Command { std: "docker" "start" "-a" "aaff5fcf374215abc6a8ac868efc9a653566882dcd4825dcdfb16a1be4731968", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `io::*`
[INFO] [stderr]  --> src/blocking/mod.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub use io::*;
[INFO] [stderr]   |         ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `flatty-io` (lib) generated 1 warning (run `cargo fix --lib -p flatty-io` to apply 1 suggestion)
[INFO] [stderr] warning: `flatty-io` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/flatty_io-c28e089ce6fd8f67)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::blocking::unique ... ok
[INFO] [stdout] test tests::async_::unique ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flatty_io
[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" "aaff5fcf374215abc6a8ac868efc9a653566882dcd4825dcdfb16a1be4731968", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aaff5fcf374215abc6a8ac868efc9a653566882dcd4825dcdfb16a1be4731968", kill_on_drop: false }`
[INFO] [stdout] aaff5fcf374215abc6a8ac868efc9a653566882dcd4825dcdfb16a1be4731968