[INFO] fetching crate heim-disk 0.1.0-rc.1...
[INFO] testing heim-disk-0.1.0-rc.1 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate heim-disk 0.1.0-rc.1 into /workspace/builds/worker-98/source
[INFO] validating manifest of crates.io crate heim-disk 0.1.0-rc.1 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 heim-disk 0.1.0-rc.1
[INFO] finished tweaking crates.io crate heim-disk 0.1.0-rc.1
[INFO] tweaked toml for crates.io crate heim-disk 0.1.0-rc.1 written to /workspace/builds/worker-98/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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded widestring v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1e27ac0f6c6e5ddfd74d58b150f17d9d7b4ed8c09838b14b59bab96d88b16bd
[INFO] running `Command { std: "docker" "start" "-a" "e1e27ac0f6c6e5ddfd74d58b150f17d9d7b4ed8c09838b14b59bab96d88b16bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1e27ac0f6c6e5ddfd74d58b150f17d9d7b4ed8c09838b14b59bab96d88b16bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1e27ac0f6c6e5ddfd74d58b150f17d9d7b4ed8c09838b14b59bab96d88b16bd", kill_on_drop: false }`
[INFO] [stdout] e1e27ac0f6c6e5ddfd74d58b150f17d9d7b4ed8c09838b14b59bab96d88b16bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-98/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2da38e757086540e2e2eae68c7d63a48244a8c5b0887395f6643ea562326161b
[INFO] running `Command { std: "docker" "start" "-a" "2da38e757086540e2e2eae68c7d63a48244a8c5b0887395f6643ea562326161b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling futures-io v0.3.18
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling slab v0.4.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling futures-channel v0.3.18
[INFO] [stderr]    Compiling futures-sink v0.3.18
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling futures-util v0.3.18
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling heim-common v0.1.0-rc.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling futures-timer v3.0.2
[INFO] [stderr]    Compiling concurrent-queue v1.2.2
[INFO] [stderr]    Compiling async-channel v1.6.1
[INFO] [stderr]    Compiling async-lock v2.4.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling blocking v1.1.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling async-fs v1.5.0
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling polling v2.2.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling nix v0.19.1
[INFO] [stderr]    Compiling uom v0.30.0
[INFO] [stderr]    Compiling async-io v1.6.0
[INFO] [stderr]    Compiling async-net v1.6.1
[INFO] [stderr]    Compiling async-process v1.3.0
[INFO] [stderr]    Compiling smol v1.2.5
[INFO] [stderr]    Compiling futures-macro v0.3.18
[INFO] [stderr]    Compiling futures-executor v0.3.18
[INFO] [stderr]    Compiling futures v0.3.18
[INFO] [stderr]    Compiling heim-runtime v0.1.0-rc.1
[INFO] [stderr]    Compiling heim-disk v0.1.0-rc.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `read_merged_count`
[INFO] [stdout]   --> src/sys/linux/counters.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     read_merged_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     dead_code,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field is never read: `write_merged_count`
[INFO] [stdout]   --> src/sys/linux/counters.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     write_merged_count: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `heim-disk` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "2da38e757086540e2e2eae68c7d63a48244a8c5b0887395f6643ea562326161b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2da38e757086540e2e2eae68c7d63a48244a8c5b0887395f6643ea562326161b", kill_on_drop: false }`
[INFO] [stdout] 2da38e757086540e2e2eae68c7d63a48244a8c5b0887395f6643ea562326161b