[INFO] fetching crate rvemu 0.0.11...
[INFO] testing rvemu-0.0.11 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate rvemu 0.0.11 into /workspace/builds/worker-7-tc1/source
[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-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rvemu 0.0.11 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0e68158735d7c5d1294fc62f08442e4ee93cb6c5ad0d0eba4b639c5d97e67c6a
[INFO] running `Command { std: "docker" "start" "-a" "0e68158735d7c5d1294fc62f08442e4ee93cb6c5ad0d0eba4b639c5d97e67c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e68158735d7c5d1294fc62f08442e4ee93cb6c5ad0d0eba4b639c5d97e67c6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e68158735d7c5d1294fc62f08442e4ee93cb6c5ad0d0eba4b639c5d97e67c6a", kill_on_drop: false }`
[INFO] [stdout] 0e68158735d7c5d1294fc62f08442e4ee93cb6c5ad0d0eba4b639c5d97e67c6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 425a11e8ec0a474171dc24c319541ecb5740478e0107470dfa110e5fad03473f
[INFO] running `Command { std: "docker" "start" "-a" "425a11e8ec0a474171dc24c319541ecb5740478e0107470dfa110e5fad03473f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rvemu v0.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: dropping unsupported crate type `cdylib` for target `x86_64-unknown-linux-musl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 249 | struct VirtqAvail {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 250 |     flags: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VirtqAvail` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.89s
[INFO] running `Command { std: "docker" "inspect" "425a11e8ec0a474171dc24c319541ecb5740478e0107470dfa110e5fad03473f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425a11e8ec0a474171dc24c319541ecb5740478e0107470dfa110e5fad03473f", kill_on_drop: false }`
[INFO] [stdout] 425a11e8ec0a474171dc24c319541ecb5740478e0107470dfa110e5fad03473f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 2235da47b822f68065ba1cc72cf1e3010e1f5152a619d1ee4531d94269aaac7d
[INFO] running `Command { std: "docker" "start" "-a" "2235da47b822f68065ba1cc72cf1e3010e1f5152a619d1ee4531d94269aaac7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rvemu v0.0.11 (/opt/rustwide/workdir)
[INFO] [stdout] warning: dropping unsupported crate type `cdylib` for target `x86_64-unknown-linux-musl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 249 | struct VirtqAvail {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 250 |     flags: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VirtqAvail` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stdout]     |
[INFO] [stdout] 249 | struct VirtqAvail {
[INFO] [stdout]     |        ---------- field in this struct
[INFO] [stdout] 250 |     flags: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `VirtqAvail` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "2235da47b822f68065ba1cc72cf1e3010e1f5152a619d1ee4531d94269aaac7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2235da47b822f68065ba1cc72cf1e3010e1f5152a619d1ee4531d94269aaac7d", kill_on_drop: false }`
[INFO] [stdout] 2235da47b822f68065ba1cc72cf1e3010e1f5152a619d1ee4531d94269aaac7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6c5d69e02ce0a3f5008d23bb83fe95199f4bd21c6eccd0d917eacacb1d9670de
[INFO] running `Command { std: "docker" "start" "-a" "6c5d69e02ce0a3f5008d23bb83fe95199f4bd21c6eccd0d917eacacb1d9670de", kill_on_drop: false }`
[INFO] [stderr] warning: dropping unsupported crate type `cdylib` for target `x86_64-unknown-linux-musl`
[INFO] [stderr] 
[INFO] [stderr] warning: field `flags` is never read
[INFO] [stderr]    --> src/devices/virtio_blk.rs:250:5
[INFO] [stderr]     |
[INFO] [stderr] 249 | struct VirtqAvail {
[INFO] [stderr]     |        ---------- field in this struct
[INFO] [stderr] 250 |     flags: u16,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `VirtqAvail` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rvemu` (lib) generated 2 warnings
[INFO] [stderr] warning: `rvemu` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rvemu-e0fff6e9871974c3)
[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" "6c5d69e02ce0a3f5008d23bb83fe95199f4bd21c6eccd0d917eacacb1d9670de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c5d69e02ce0a3f5008d23bb83fe95199f4bd21c6eccd0d917eacacb1d9670de", kill_on_drop: false }`
[INFO] [stdout] 6c5d69e02ce0a3f5008d23bb83fe95199f4bd21c6eccd0d917eacacb1d9670de