[INFO] fetching crate query-flow 0.1.0...
[INFO] checking query-flow-0.1.0 against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] extracting crate query-flow 0.1.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate query-flow 0.1.0
[INFO] finished tweaking crates.io crate query-flow 0.1.0
[INFO] tweaked toml for crates.io crate query-flow 0.1.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate query-flow 0.1.0 on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate query-flow 0.1.0 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7966542ea4dd87c37caf3c3a962d04e5426ff2d70421f452cf5cdd02df57b6c4
[INFO] running `Command { std: "docker" "start" "-a" "7966542ea4dd87c37caf3c3a962d04e5426ff2d70421f452cf5cdd02df57b6c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7966542ea4dd87c37caf3c3a962d04e5426ff2d70421f452cf5cdd02df57b6c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7966542ea4dd87c37caf3c3a962d04e5426ff2d70421f452cf5cdd02df57b6c4", kill_on_drop: false }`
[INFO] [stdout] 7966542ea4dd87c37caf3c3a962d04e5426ff2d70421f452cf5cdd02df57b6c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c3da16c9e0e6145a65c450d0f69a4673bdd2ebff4da2e53d866705fb6ca462f
[INFO] running `Command { std: "docker" "start" "-a" "0c3da16c9e0e6145a65c450d0f69a4673bdd2ebff4da2e53d866705fb6ca462f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.77
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking thiserror v1.0.63
[INFO] [stderr]     Checking query-flow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]  --> src/query/context.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn query<Q: Query>(&self, query: Q) -> Result<QueryOutput<Q>, Error> {
[INFO] [stdout]   |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/query_graph.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct QueryId(usize);
[INFO] [stdout]   |            ------- ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]  --> src/query/context.rs:8:35
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn query<Q: Query>(&self, query: Q) -> Result<QueryOutput<Q>, Error> {
[INFO] [stdout]   |                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/query_graph.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct QueryId(usize);
[INFO] [stdout]   |            ------- ^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.62s
[INFO] running `Command { std: "docker" "inspect" "0c3da16c9e0e6145a65c450d0f69a4673bdd2ebff4da2e53d866705fb6ca462f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c3da16c9e0e6145a65c450d0f69a4673bdd2ebff4da2e53d866705fb6ca462f", kill_on_drop: false }`
[INFO] [stdout] 0c3da16c9e0e6145a65c450d0f69a4673bdd2ebff4da2e53d866705fb6ca462f