[INFO] fetching crate mc-core 0.1.1...
[INFO] checking mc-core-0.1.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate mc-core 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate mc-core 0.1.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mc-core 0.1.1
[INFO] finished tweaking crates.io crate mc-core 0.1.1
[INFO] tweaked toml for crates.io crate mc-core 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 27 packages to latest compatible versions
[INFO] [stderr]       Adding ahash v0.7.8 (latest: v0.8.11)
[INFO] [stderr]       Adding bit-vec v0.6.3 (latest: v0.8.0)
[INFO] [stderr]       Adding hashbrown v0.11.2 (latest: v0.14.5)
[INFO] [stderr]       Adding hecs v0.6.5 (latest: v0.10.5)
[INFO] [stderr]       Adding uuid v0.8.2 (latest: v1.10.0)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded named-binary-tag v0.6.0
[INFO] [stderr]   Downloaded hecs v0.6.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 175e602b4d9f6e00a1195f0c180cae8a62e52820947f20e96d614ce7b82ed880
[INFO] running `Command { std: "docker" "start" "-a" "175e602b4d9f6e00a1195f0c180cae8a62e52820947f20e96d614ce7b82ed880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "175e602b4d9f6e00a1195f0c180cae8a62e52820947f20e96d614ce7b82ed880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "175e602b4d9f6e00a1195f0c180cae8a62e52820947f20e96d614ce7b82ed880", kill_on_drop: false }`
[INFO] [stdout] 175e602b4d9f6e00a1195f0c180cae8a62e52820947f20e96d614ce7b82ed880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff5fcb3a9a5c7ad569855dfbc719ae56157040a2a530feccc0094248bbcadf18
[INFO] running `Command { std: "docker" "start" "-a" "ff5fcb3a9a5c7ad569855dfbc719ae56157040a2a530feccc0094248bbcadf18", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.158
[INFO] [stderr]     Checking adler2 v2.0.0
[INFO] [stderr]     Checking crc32fast v1.4.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.13
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking flate2 v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking named-binary-tag v0.6.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking hecs v0.6.5
[INFO] [stderr]     Checking mc-core v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/block/state.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct SharedProperty {
[INFO] [stdout]    |                   -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     length: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SharedProperty` 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: function `decode_entities` is never used
[INFO] [stdout]    --> src/world/anvil/decode.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn decode_entities(tag_root: &CompoundTag, chunk: &mut ProtoChunk) -> Result<(), DecodeError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_entity` is never used
[INFO] [stdout]    --> src/world/anvil/decode.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn decode_entity(tag_entity: &CompoundTag, entities: &GlobalEntities, chunk: &mut ProtoChunk) -> Result<usize, DecodeError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/block/state.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub(crate) struct SharedProperty {
[INFO] [stdout]    |                   -------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 17 |     length: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SharedProperty` 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: function `decode_entities` is never used
[INFO] [stdout]    --> src/world/anvil/decode.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn decode_entities(tag_root: &CompoundTag, chunk: &mut ProtoChunk) -> Result<(), DecodeError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decode_entity` is never used
[INFO] [stdout]    --> src/world/anvil/decode.rs:215:4
[INFO] [stdout]     |
[INFO] [stdout] 215 | fn decode_entity(tag_entity: &CompoundTag, entities: &GlobalEntities, chunk: &mut ProtoChunk) -> Result<usize, DecodeError> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.15s
[INFO] running `Command { std: "docker" "inspect" "ff5fcb3a9a5c7ad569855dfbc719ae56157040a2a530feccc0094248bbcadf18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff5fcb3a9a5c7ad569855dfbc719ae56157040a2a530feccc0094248bbcadf18", kill_on_drop: false }`
[INFO] [stdout] ff5fcb3a9a5c7ad569855dfbc719ae56157040a2a530feccc0094248bbcadf18