[INFO] fetching crate hdf5file 0.1.1...
[INFO] checking hdf5file-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate hdf5file 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate hdf5file 0.1.1
[INFO] finished tweaking crates.io crate hdf5file 0.1.1
[INFO] tweaked toml for crates.io crate hdf5file 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate hdf5file 0.1.1 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 38 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (available: v2.10.0)
[INFO] [stderr]       Adding itertools v0.8.2 (available: v0.14.0)
[INFO] [stderr]       Adding ndarray v0.12.1 (available: v0.17.1)
[INFO] [stderr]       Adding structopt v0.2.18 (available: v0.3.26)
[INFO] [stderr]       Adding trackable v0.2.24 (available: v1.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f534a35141dbdd4250963ba0c93a0f51172bdc77f4a0da7f6a89c1d07c233ea
[INFO] running `Command { std: "docker" "start" "-a" "6f534a35141dbdd4250963ba0c93a0f51172bdc77f4a0da7f6a89c1d07c233ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f534a35141dbdd4250963ba0c93a0f51172bdc77f4a0da7f6a89c1d07c233ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f534a35141dbdd4250963ba0c93a0f51172bdc77f4a0da7f6a89c1d07c233ea", kill_on_drop: false }`
[INFO] [stdout] 6f534a35141dbdd4250963ba0c93a0f51172bdc77f4a0da7f6a89c1d07c233ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a628149cfb841a907064cbdcba390703b93bf407a47f3f5d7e91208da6bb7aaf
[INFO] running `Command { std: "docker" "start" "-a" "a628149cfb841a907064cbdcba390703b93bf407a47f3f5d7e91208da6bb7aaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]     Checking trackable v1.3.0
[INFO] [stderr]     Checking trackable v0.2.24
[INFO] [stderr]     Checking hdf5file v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `group_leaf_node_k`, `group_internal_node_k`, and `end_of_file_address` are never read
[INFO] [stdout]   --> src/lowlevel/level0.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Superblock {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 13 |     pub group_leaf_node_k: u16,     // TODO: NonZeroU16
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     pub group_internal_node_k: u16, // TODO: NonZeroU16
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     pub end_of_file_address: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Superblock` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data_segment_size` and `free_list_head_offset` are never read
[INFO] [stdout]   --> src/lowlevel/level1.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LocalHeap {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 12 |     data_segment_size: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     free_list_head_offset: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LocalHeap` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left_sibling_address` and `right_sibling_address` are never read
[INFO] [stdout]   --> src/lowlevel/level1.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Group {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 65 |         left_sibling_address: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |         right_sibling_address: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BTreeNode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `link_value_offset` is never read
[INFO] [stdout]    --> src/lowlevel/level1.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     SymbolicLink {
[INFO] [stdout]     |     ------------ field in this variant
[INFO] [stdout] 247 |         link_value_offset: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ScratchPad` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `object_reference_count` and `object_header_size` are never read
[INFO] [stdout]   --> src/lowlevel/level2.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub struct ObjectHeaderPrefix {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 86 |     messages: Vec<HeaderMessage>,
[INFO] [stdout] 87 |     object_reference_count: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     object_header_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ObjectHeaderPrefix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub struct HeaderMessage {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 134 |     flags: HeaderMessageFlags,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `HeaderMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dimension_max_sizes` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct DataspaceMessage {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 176 |     dimension_sizes: Vec<u64>,
[INFO] [stdout] 177 |     dimension_max_sizes: Option<Vec<u64>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DataspaceMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub struct FloatingPointDatatype {
[INFO] [stdout]     |            --------------------- field in this struct
[INFO] [stdout] 290 |     size: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FloatingPointDatatype` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bit_field`, `size`, `bit_offset`, and `bit_precision` are never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 363 | pub struct FixedPointDatatype {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 364 |     bit_field: u32,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 365 |     size: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 366 |
[INFO] [stdout] 367 |     bit_offset: u16,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 368 |     bit_precision: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FixedPointDatatype` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:389:16
[INFO] [stdout]     |
[INFO] [stdout] 389 |     FixedPoint(FixedPointDatatype),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DatatypeMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 389 -     FixedPoint(FixedPointDatatype),
[INFO] [stdout] 389 +     FixedPoint(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `space_allocation_time`, `fill_value_write_time`, and `fill_value` are never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:435:5
[INFO] [stdout]     |
[INFO] [stdout] 434 | pub struct FillValueMessage {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 435 |     space_allocation_time: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 436 |     fill_value_write_time: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 437 |     fill_value: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FillValueMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `b_tree_address` and `local_heap_address` are never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:501:9
[INFO] [stdout]     |
[INFO] [stdout] 500 | pub struct SymbolTableMessage {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 501 |     pub b_tree_address: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 502 |     pub local_heap_address: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SymbolTableMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `unixtime_seconds` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:516:5
[INFO] [stdout]     |
[INFO] [stdout] 515 | pub struct ObjectModificationTimeMessage {
[INFO] [stdout]     |            ----------------------------- field in this struct
[INFO] [stdout] 516 |     unixtime_seconds: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ObjectModificationTimeMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:536:15
[INFO] [stdout]     |
[INFO] [stdout] 536 |     FillValue(FillValueMessage),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 536 -     FillValue(FillValueMessage),
[INFO] [stdout] 536 +     FillValue(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:548:17
[INFO] [stdout]     |
[INFO] [stdout] 548 |     SymbolTable(SymbolTableMessage),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 548 -     SymbolTable(SymbolTableMessage),
[INFO] [stdout] 548 +     SymbolTable(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:549:28
[INFO] [stdout]     |
[INFO] [stdout] 549 |     ObjectModificationTime(ObjectModificationTimeMessage),
[INFO] [stdout]     |     ---------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 549 -     ObjectModificationTime(ObjectModificationTimeMessage),
[INFO] [stdout] 549 +     ObjectModificationTime(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `group_leaf_node_k`, `group_internal_node_k`, and `end_of_file_address` are never read
[INFO] [stdout]   --> src/lowlevel/level0.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Superblock {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 13 |     pub group_leaf_node_k: u16,     // TODO: NonZeroU16
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     pub group_internal_node_k: u16, // TODO: NonZeroU16
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     pub end_of_file_address: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Superblock` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `data_segment_size` and `free_list_head_offset` are never read
[INFO] [stdout]   --> src/lowlevel/level1.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct LocalHeap {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 12 |     data_segment_size: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 13 |     free_list_head_offset: u64,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LocalHeap` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `left_sibling_address` and `right_sibling_address` are never read
[INFO] [stdout]   --> src/lowlevel/level1.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     Group {
[INFO] [stdout]    |     ----- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 65 |         left_sibling_address: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 66 |         right_sibling_address: u64,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `BTreeNode` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `link_value_offset` is never read
[INFO] [stdout]    --> src/lowlevel/level1.rs:247:9
[INFO] [stdout]     |
[INFO] [stdout] 246 |     SymbolicLink {
[INFO] [stdout]     |     ------------ field in this variant
[INFO] [stdout] 247 |         link_value_offset: u32,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ScratchPad` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `object_reference_count` and `object_header_size` are never read
[INFO] [stdout]   --> src/lowlevel/level2.rs:87:5
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub struct ObjectHeaderPrefix {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] 86 |     messages: Vec<HeaderMessage>,
[INFO] [stdout] 87 |     object_reference_count: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 88 |     object_header_size: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ObjectHeaderPrefix` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `flags` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:134:5
[INFO] [stdout]     |
[INFO] [stdout] 133 | pub struct HeaderMessage {
[INFO] [stdout]     |            ------------- field in this struct
[INFO] [stdout] 134 |     flags: HeaderMessageFlags,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `HeaderMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `dimension_max_sizes` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 175 | pub struct DataspaceMessage {
[INFO] [stdout]     |            ---------------- field in this struct
[INFO] [stdout] 176 |     dimension_sizes: Vec<u64>,
[INFO] [stdout] 177 |     dimension_max_sizes: Option<Vec<u64>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DataspaceMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `size` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:290:5
[INFO] [stdout]     |
[INFO] [stdout] 289 | pub struct FloatingPointDatatype {
[INFO] [stdout]     |            --------------------- field in this struct
[INFO] [stdout] 290 |     size: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FloatingPointDatatype` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `bit_field`, `size`, `bit_offset`, and `bit_precision` are never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:364:5
[INFO] [stdout]     |
[INFO] [stdout] 363 | pub struct FixedPointDatatype {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 364 |     bit_field: u32,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 365 |     size: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 366 |
[INFO] [stdout] 367 |     bit_offset: u16,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 368 |     bit_precision: u16,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FixedPointDatatype` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:389:16
[INFO] [stdout]     |
[INFO] [stdout] 389 |     FixedPoint(FixedPointDatatype),
[INFO] [stdout]     |     ---------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DatatypeMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 389 -     FixedPoint(FixedPointDatatype),
[INFO] [stdout] 389 +     FixedPoint(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `space_allocation_time`, `fill_value_write_time`, and `fill_value` are never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:435:5
[INFO] [stdout]     |
[INFO] [stdout] 434 | pub struct FillValueMessage {
[INFO] [stdout]     |            ---------------- fields in this struct
[INFO] [stdout] 435 |     space_allocation_time: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 436 |     fill_value_write_time: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 437 |     fill_value: Option<Vec<u8>>,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `FillValueMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `b_tree_address` and `local_heap_address` are never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:501:9
[INFO] [stdout]     |
[INFO] [stdout] 500 | pub struct SymbolTableMessage {
[INFO] [stdout]     |            ------------------ fields in this struct
[INFO] [stdout] 501 |     pub b_tree_address: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^
[INFO] [stdout] 502 |     pub local_heap_address: u64,
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `SymbolTableMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `unixtime_seconds` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:516:5
[INFO] [stdout]     |
[INFO] [stdout] 515 | pub struct ObjectModificationTimeMessage {
[INFO] [stdout]     |            ----------------------------- field in this struct
[INFO] [stdout] 516 |     unixtime_seconds: u32,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ObjectModificationTimeMessage` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:536:15
[INFO] [stdout]     |
[INFO] [stdout] 536 |     FillValue(FillValueMessage),
[INFO] [stdout]     |     --------- ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 536 -     FillValue(FillValueMessage),
[INFO] [stdout] 536 +     FillValue(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:548:17
[INFO] [stdout]     |
[INFO] [stdout] 548 |     SymbolTable(SymbolTableMessage),
[INFO] [stdout]     |     ----------- ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 548 -     SymbolTable(SymbolTableMessage),
[INFO] [stdout] 548 +     SymbolTable(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/lowlevel/level2.rs:549:28
[INFO] [stdout]     |
[INFO] [stdout] 549 |     ObjectModificationTime(ObjectModificationTimeMessage),
[INFO] [stdout]     |     ---------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Message` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 549 -     ObjectModificationTime(ObjectModificationTimeMessage),
[INFO] [stdout] 549 +     ObjectModificationTime(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> examples/object.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, StructOpt)]
[INFO] [stdout]   |                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]   = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> examples/object.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[derive(Debug, StructOpt)]
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `StructOpt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hdf5file` (example "object") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "a628149cfb841a907064cbdcba390703b93bf407a47f3f5d7e91208da6bb7aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a628149cfb841a907064cbdcba390703b93bf407a47f3f5d7e91208da6bb7aaf", kill_on_drop: false }`
[INFO] [stdout] a628149cfb841a907064cbdcba390703b93bf407a47f3f5d7e91208da6bb7aaf
