[INFO] fetching crate bn254_blackbox_solver 0.46.0...
[INFO] checking bn254_blackbox_solver-0.46.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate bn254_blackbox_solver 0.46.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate bn254_blackbox_solver 0.46.0
[INFO] finished tweaking crates.io crate bn254_blackbox_solver 0.46.0
[INFO] tweaked toml for crates.io crate bn254_blackbox_solver 0.46.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate bn254_blackbox_solver 0.46.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "ace218a0086b6fbf18beb97a882227d3d546db9fb81cee25aeccdece7c3df373", kill_on_drop: false }`
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[INFO] [stdout] warning: struct `BackendError` is never constructed
[INFO] [stdout]   --> src/wasm/mod.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct BackendError(#[from] Error);
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `construct_signature` and `construct_public_key` are never used
[INFO] [stdout]  --> src/wasm/schnorr.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait SchnorrSig {
[INFO] [stdout]   |                  ---------- methods in this trait
[INFO] [stdout] 4 |     fn construct_signature(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fn construct_public_key(&self, private_key: [u8; 32]) -> Result<[u8; 64], Error>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `BackendError` is never constructed
[INFO] [stdout]   --> src/wasm/mod.rs:39:19
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) struct BackendError(#[from] Error);
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `construct_signature` and `construct_public_key` are never used
[INFO] [stdout]  --> src/wasm/schnorr.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(crate) trait SchnorrSig {
[INFO] [stdout]   |                  ---------- methods in this trait
[INFO] [stdout] 4 |     fn construct_signature(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     fn construct_public_key(&self, private_key: [u8; 32]) -> Result<[u8; 64], Error>;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
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