[INFO] fetching crate wac-graph 0.8.1...
[INFO] checking wac-graph-0.8.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate wac-graph 0.8.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate wac-graph 0.8.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate wac-graph 0.8.1
[INFO] tweaked toml for crates.io crate wac-graph 0.8.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wac-graph 0.8.1 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] crate crates.io crate wac-graph 0.8.1 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] [stderr]     Blocking waiting for file lock on package cache
[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] 22234b30f1ebd69767c3ad5b459eccfbbbb8676df199ba9defbbc707398d1e06
[INFO] running `Command { std: "docker" "start" "-a" "22234b30f1ebd69767c3ad5b459eccfbbbb8676df199ba9defbbc707398d1e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22234b30f1ebd69767c3ad5b459eccfbbbb8676df199ba9defbbc707398d1e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22234b30f1ebd69767c3ad5b459eccfbbbb8676df199ba9defbbc707398d1e06", kill_on_drop: false }`
[INFO] [stdout] 22234b30f1ebd69767c3ad5b459eccfbbbb8676df199ba9defbbc707398d1e06
[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] 1efb879d44807b1e992cba2de228f6767c68a0db5ff310fbfd7c238fb55be8fd
[INFO] running `Command { std: "docker" "start" "-a" "1efb879d44807b1e992cba2de228f6767c68a0db5ff310fbfd7c238fb55be8fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling wasmparser v0.239.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]     Checking foldhash v0.1.4
[INFO] [stderr]     Checking bitflags v2.5.0
[INFO] [stderr]     Checking indexmap v2.12.0
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking anyhow v1.0.81
[INFO] [stderr]    Compiling wasm-encoder v0.239.0
[INFO] [stderr]     Checking miniz_oxide v0.8.5
[INFO] [stderr]     Checking topological-sort v0.2.2
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking spdx v0.10.4
[INFO] [stderr]     Checking wasm-encoder v0.240.0
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking bumpalo v3.15.4
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking flate2 v1.1.0
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking petgraph v0.6.4
[INFO] [stderr]     Checking wast v240.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking wat v1.240.0
[INFO] [stderr]     Checking auditable-serde v0.8.0
[INFO] [stderr]     Checking wit-parser v0.239.0
[INFO] [stderr]     Checking wasmprinter v0.239.0
[INFO] [stderr]     Checking wasm-metadata v0.239.0
[INFO] [stderr]     Checking wac-types v0.8.1
[INFO] [stderr]     Checking wit-component v0.239.0
[INFO] [stderr]     Checking wac-graph v0.8.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]   --> src/graph.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |         source: anyhow::Error,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]   --> src/graph.rs:68:9
[INFO] [stdout]    |
[INFO] [stdout] 68 |         node: NodeId,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]   --> src/graph.rs:77:9
[INFO] [stdout]    |
[INFO] [stdout] 77 |         source: anyhow::Error,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:101:9
[INFO] [stdout]     |
[INFO] [stdout] 101 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:109:9
[INFO] [stdout]     |
[INFO] [stdout] 109 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:125:9
[INFO] [stdout]     |
[INFO] [stdout] 125 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/graph.rs:134:9
[INFO] [stdout]     |
[INFO] [stdout] 134 |         source: anyhow::Error,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:161:9
[INFO] [stdout]     |
[INFO] [stdout] 161 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/graph.rs:174:9
[INFO] [stdout]     |
[INFO] [stdout] 174 |         source: anyhow::Error,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:180:9
[INFO] [stdout]     |
[INFO] [stdout] 180 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/graph.rs:194:9
[INFO] [stdout]     |
[INFO] [stdout] 194 |         source: BinaryReaderError,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `node` is never read
[INFO] [stdout]    --> src/graph.rs:200:9
[INFO] [stdout]     |
[INFO] [stdout] 200 |         node: NodeId,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `import` is never read
[INFO] [stdout]    --> src/graph.rs:206:9
[INFO] [stdout]     |
[INFO] [stdout] 206 |         import: NodeId,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `instantiation` is never read
[INFO] [stdout]    --> src/graph.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |         instantiation: NodeId,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `first` is never read
[INFO] [stdout]    --> src/graph.rs:220:9
[INFO] [stdout]     |
[INFO] [stdout] 220 |         first: NodeId,
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `second` is never read
[INFO] [stdout]    --> src/graph.rs:222:9
[INFO] [stdout]     |
[INFO] [stdout] 222 |         second: NodeId,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]    --> src/graph.rs:225:9
[INFO] [stdout]     |
[INFO] [stdout] 225 |         source: anyhow::Error,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `source` is never read
[INFO] [stdout]   --> src/plug.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |         source: anyhow::Error,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/encoding.rs:51:11
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn ty(&mut self) -> ComponentTypeEncoder {
[INFO] [stdout]    |           ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |           |
[INFO] [stdout]    |           the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn ty(&mut self) -> ComponentTypeEncoder<'_> {
[INFO] [stdout]    |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/encoding.rs:59:18
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn core_type(&mut self) -> ComponentCoreTypeEncoder {
[INFO] [stdout]    |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 59 |     fn core_type(&mut self) -> ComponentCoreTypeEncoder<'_> {
[INFO] [stdout]    |                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<graph::CompositionGraph, DecodeError>
[INFO] [stdout]     --> src/graph.rs:1237:74
[INFO] [stdout]      |
[INFO] [stdout] 1237 |       pub fn decode(_data: &[u8]) -> Result<CompositionGraph, DecodeError> {
[INFO] [stdout]      |  __________________________________________________________________________^
[INFO] [stdout] 1238 | |         todo!("decoding of composition graphs is not yet implemented")
[INFO] [stdout] 1239 | |     }
[INFO] [stdout]      | |_____^
[INFO] [stdout]      |
[INFO] [stdout]      = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wac-graph` (lib) due to 1 previous error; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "1efb879d44807b1e992cba2de228f6767c68a0db5ff310fbfd7c238fb55be8fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efb879d44807b1e992cba2de228f6767c68a0db5ff310fbfd7c238fb55be8fd", kill_on_drop: false }`
[INFO] [stdout] 1efb879d44807b1e992cba2de228f6767c68a0db5ff310fbfd7c238fb55be8fd
