[INFO] fetching crate cryptid 0.2.8...
[INFO] checking cryptid-0.2.8 against master#c0bb140a37c81cf59a0b40c21c9413059644e294 for pr-129249-1
[INFO] extracting crate cryptid 0.2.8 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate cryptid 0.2.8
[INFO] finished tweaking crates.io crate cryptid 0.2.8
[INFO] tweaked toml for crates.io crate cryptid 0.2.8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cryptid 0.2.8 on toolchain c0bb140a37c81cf59a0b40c21c9413059644e294
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c0bb140a37c81cf59a0b40c21c9413059644e294" "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" "+c0bb140a37c81cf59a0b40c21c9413059644e294" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 52 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.12.3 (available: v0.22.1)
[INFO] [stderr]       Adding curve25519-dalek v2.1.3 (available: v4.1.3)
[INFO] [stderr]       Adding num-bigint v0.2.6 (available: v0.4.6)
[INFO] [stderr]       Adding ring v0.16.20 (available: v0.17.14)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c0bb140a37c81cf59a0b40c21c9413059644e294" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded curve25519-dalek v2.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047
[INFO] running `Command { std: "docker" "start" "d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047" "/opt/rustwide/cargo-home/bin/cargo" "+c0bb140a37c81cf59a0b40c21c9413059644e294" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047" "/opt/rustwide/cargo-home/bin/cargo" "+c0bb140a37c81cf59a0b40c21c9413059644e294" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.1
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling shlex v2.0.1
[INFO] [stderr]     Checking typenum v1.20.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking memchr v2.8.2
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking zeroize v1.9.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]     Checking once_cell v1.21.4
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]    Compiling cc v1.2.64
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]     Checking serde_json v1.0.150
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking curve25519-dalek v2.1.3
[INFO] [stderr]     Checking cryptid v0.2.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `n` and `x_i` are never read
[INFO] [stdout]    --> src/curve.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub struct Polynomial {
[INFO] [stdout]     |            ---------- fields in this struct
[INFO] [stdout] 177 |     k: usize,
[INFO] [stdout] 178 |     n: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout] 179 |     pub x_i: Scalar,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Polynomial` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `n` is never read
[INFO] [stdout]    --> src/curve.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 176 | pub struct Polynomial {
[INFO] [stdout]     |            ---------- field in this struct
[INFO] [stdout] 177 |     k: usize,
[INFO] [stdout] 178 |     n: usize,
[INFO] [stdout]     |     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Polynomial` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 15.52s
[INFO] running `Command { std: "docker" "inspect" "d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047", kill_on_drop: false }`
[INFO] [stdout] d3d47877627531e2358acd03d3d0645f0a7cd7b796f139bf5ceaa1c8507dd047