[INFO] fetching crate rvemu 0.0.11...
[INFO] testing rvemu-0.0.11 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate rvemu 0.0.11 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate rvemu 0.0.11 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rvemu 0.0.11
[INFO] finished tweaking crates.io crate rvemu 0.0.11
[INFO] tweaked toml for crates.io crate rvemu 0.0.11 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ec930b21e9b10c864c2303d79a8518a1f6f4534902757c6a7435e8bb10f3d13b
[INFO] running `Command { std: "docker" "start" "-a" "ec930b21e9b10c864c2303d79a8518a1f6f4534902757c6a7435e8bb10f3d13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ec930b21e9b10c864c2303d79a8518a1f6f4534902757c6a7435e8bb10f3d13b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec930b21e9b10c864c2303d79a8518a1f6f4534902757c6a7435e8bb10f3d13b", kill_on_drop: false }`
[INFO] [stdout] ec930b21e9b10c864c2303d79a8518a1f6f4534902757c6a7435e8bb10f3d13b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe7ee3c34cb4a5d274115bf48575fdc603b2fe9e8cbb1fb8f52770f799179961
[INFO] running `Command { std: "docker" "start" "-a" "fe7ee3c34cb4a5d274115bf48575fdc603b2fe9e8cbb1fb8f52770f799179961", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rvemu v0.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `flags`
[INFO] [stdout]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     flags: u16,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.64s
[INFO] running `Command { std: "docker" "inspect" "fe7ee3c34cb4a5d274115bf48575fdc603b2fe9e8cbb1fb8f52770f799179961", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe7ee3c34cb4a5d274115bf48575fdc603b2fe9e8cbb1fb8f52770f799179961", kill_on_drop: false }`
[INFO] [stdout] fe7ee3c34cb4a5d274115bf48575fdc603b2fe9e8cbb1fb8f52770f799179961
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b12e40e51080c37cbabeba23636e0e900579700d9f5fe41320171d7f57bf7a3
[INFO] running `Command { std: "docker" "start" "-a" "0b12e40e51080c37cbabeba23636e0e900579700d9f5fe41320171d7f57bf7a3", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `flags`
[INFO] [stdout]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     flags: u16,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rvemu v0.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `flags`
[INFO] [stdout]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 250 |     flags: u16,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.90s
[INFO] running `Command { std: "docker" "inspect" "0b12e40e51080c37cbabeba23636e0e900579700d9f5fe41320171d7f57bf7a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b12e40e51080c37cbabeba23636e0e900579700d9f5fe41320171d7f57bf7a3", kill_on_drop: false }`
[INFO] [stdout] 0b12e40e51080c37cbabeba23636e0e900579700d9f5fe41320171d7f57bf7a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5abf0c0e295c2fca4ee0e312a8c66e17401a20912e67ec34525be332ee3410f6
[INFO] running `Command { std: "docker" "start" "-a" "5abf0c0e295c2fca4ee0e312a8c66e17401a20912e67ec34525be332ee3410f6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `flags`
[INFO] [stderr]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 250 |     flags: u16,
[INFO] [stderr]     |     ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rvemu` (lib) generated 1 warning
[INFO] [stderr] warning: `rvemu` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rvemu-1d3f29827a2066f8)
[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] [stderr]    Doc-tests rvemu
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5abf0c0e295c2fca4ee0e312a8c66e17401a20912e67ec34525be332ee3410f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5abf0c0e295c2fca4ee0e312a8c66e17401a20912e67ec34525be332ee3410f6", kill_on_drop: false }`
[INFO] [stdout] 5abf0c0e295c2fca4ee0e312a8c66e17401a20912e67ec34525be332ee3410f6