[INFO] fetching crate woff2 0.3.0... [INFO] checking woff2-0.3.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] extracting crate woff2 0.3.0 into /workspace/builds/worker-1-tc2/source [INFO] started tweaking crates.io crate woff2 0.3.0 [INFO] finished tweaking crates.io crate woff2 0.3.0 [INFO] tweaked toml for crates.io crate woff2 0.3.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate woff2 0.3.0 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] crate crates.io crate woff2 0.3.0 already has a lockfile, it will not be regenerated [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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 00b9b97fbf31e52b254501f24c89a637dd7964a131f6fd5cdbc2f84911391cef [INFO] running `Command { std: "docker" "start" "-a" "00b9b97fbf31e52b254501f24c89a637dd7964a131f6fd5cdbc2f84911391cef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "00b9b97fbf31e52b254501f24c89a637dd7964a131f6fd5cdbc2f84911391cef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "00b9b97fbf31e52b254501f24c89a637dd7964a131f6fd5cdbc2f84911391cef", kill_on_drop: false }` [INFO] [stdout] 00b9b97fbf31e52b254501f24c89a637dd7964a131f6fd5cdbc2f84911391cef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d4bf876656a54dbfcbb62b1dcc6acd36f7ba132d2bf912c2ef1ccee3af948554 [INFO] running `Command { std: "docker" "start" "-a" "d4bf876656a54dbfcbb62b1dcc6acd36f7ba132d2bf912c2ef1ccee3af948554", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.91 [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Checking alloc-no-stdlib v2.0.3 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking wyz v0.5.0 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking alloc-stdlib v0.2.1 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking brotli-decompressor v2.3.2 [INFO] [stderr] Compiling paste v1.0.7 [INFO] [stderr] Checking bitvec v1.0.0 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Compiling quote v1.0.17 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking four-cc v0.1.0 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking ttf-parser v0.15.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking brotli v3.3.4 [INFO] [stderr] Compiling thiserror-impl v1.0.30 [INFO] [stderr] Compiling clap_derive v3.1.7 [INFO] [stderr] Checking thiserror v1.0.30 [INFO] [stderr] Checking safer-bytes v0.2.0 [INFO] [stderr] Checking clap v3.1.8 [INFO] [stderr] Checking woff2 v0.3.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `version` is never read [INFO] [stdout] --> src/woff2/collection_directory.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 47 | pub struct CollectionHeader { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 48 | pub version: CollectionHeaderVersion, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/woff2/header.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Woff2Header { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | pub length: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 25 | pub num_tables: u16, [INFO] [stdout] 26 | pub reserved: u16, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub major_version: u16, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 30 | pub minor_version: u16, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 31 | pub meta_offset: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 32 | pub meta_length: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 33 | pub meta_orig_length: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 34 | pub private_offset: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 35 | pub private_length: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `dest_length` is never read [INFO] [stdout] --> src/woff2/table_directory.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 163 | pub struct TableDirectoryEntry { [INFO] [stdout] | ------------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 167 | pub dest_length: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TableDirectoryEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> examples/decoder.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | in_path: PathBuf, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> examples/decoder.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | out_path: PathBuf, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `woff2` (example "decoder") due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: field `version` is never read [INFO] [stdout] --> src/woff2/collection_directory.rs:48:9 [INFO] [stdout] | [INFO] [stdout] 47 | pub struct CollectionHeader { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 48 | pub version: CollectionHeaderVersion, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple fields are never read [INFO] [stdout] --> src/woff2/header.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 21 | pub struct Woff2Header { [INFO] [stdout] | ----------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | pub length: u32, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 25 | pub num_tables: u16, [INFO] [stdout] 26 | pub reserved: u16, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 29 | pub major_version: u16, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 30 | pub minor_version: u16, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] 31 | pub meta_offset: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 32 | pub meta_length: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] 33 | pub meta_orig_length: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] 34 | pub private_offset: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] 35 | pub private_length: u32, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `dest_length` is never read [INFO] [stdout] --> src/woff2/table_directory.rs:167:9 [INFO] [stdout] | [INFO] [stdout] 163 | pub struct TableDirectoryEntry { [INFO] [stdout] | ------------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 167 | pub dest_length: u32, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `TableDirectoryEntry` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "d4bf876656a54dbfcbb62b1dcc6acd36f7ba132d2bf912c2ef1ccee3af948554", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4bf876656a54dbfcbb62b1dcc6acd36f7ba132d2bf912c2ef1ccee3af948554", kill_on_drop: false }` [INFO] [stdout] d4bf876656a54dbfcbb62b1dcc6acd36f7ba132d2bf912c2ef1ccee3af948554