[INFO] fetching crate lead 0.0.1...
[INFO] checking lead-0.0.1 against try#93086cfebfccb79083c59d0d3b2052944bba643c for pr-146440-1
[INFO] extracting crate lead 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate lead 0.0.1
[INFO] finished tweaking crates.io crate lead 0.0.1
[INFO] tweaked toml for crates.io crate lead 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lead 0.0.1 on toolchain 93086cfebfccb79083c59d0d3b2052944bba643c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate lead 0.0.1 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" "+93086cfebfccb79083c59d0d3b2052944bba643c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0627813a727986fecd47982e7a3dec290d49d9611bf36efb2fdb2f3444a2e86
[INFO] running `Command { std: "docker" "start" "-a" "b0627813a727986fecd47982e7a3dec290d49d9611bf36efb2fdb2f3444a2e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0627813a727986fecd47982e7a3dec290d49d9611bf36efb2fdb2f3444a2e86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0627813a727986fecd47982e7a3dec290d49d9611bf36efb2fdb2f3444a2e86", kill_on_drop: false }`
[INFO] [stdout] b0627813a727986fecd47982e7a3dec290d49d9611bf36efb2fdb2f3444a2e86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+93086cfebfccb79083c59d0d3b2052944bba643c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a414065b93d75bfb8025eb2cbc2a4d86ff91f18ef4fbfd7ad071c4f8b2c55438
[INFO] running `Command { std: "docker" "start" "-a" "a414065b93d75bfb8025eb2cbc2a4d86ff91f18ef4fbfd7ad071c4f8b2c55438", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]     Checking lead v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `WeakPbBuf` is never constructed
[INFO] [stdout]   --> src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct WeakPbBuf<T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct WeakPbBuf<T> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 19 |     buffer: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct WeakPb<'buf, T> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 24 |     buffer: &'buf [u8],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WireType` is never constructed
[INFO] [stdout]  --> src/codec/mod.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WireType(u8);
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/codec/mod.rs:7:15
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl WireType {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout]  7 |     pub const VARINT: Self = Self(0);
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]  8 |     pub const I64: Self = Self(1);
[INFO] [stdout]    |               ^^^
[INFO] [stdout]  9 |     pub const LEN: Self = Self(2);
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 10 |     pub const SGROUP: Self = Self(3);
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 11 |     pub const EGROUP: Self = Self(4);
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 12 |     pub const I32: Self = Self(5);
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 13 |
[INFO] [stdout] 14 |     pub const fn into_u8(self) -> u8 {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub const fn from_u8(num: u8) -> Option<Self> {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LEB128_CONTINUATION` is never used
[INFO] [stdout]   --> src/codec/decode.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 | const LEB128_CONTINUATION: u8 = 0b1000_0000;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `LEB128_MASK` is never used
[INFO] [stdout]   --> src/codec/decode.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const LEB128_MASK: u8 = 0b0111_1111;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `VarintError` is never used
[INFO] [stdout]   --> src/codec/decode.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub enum VarintError {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `complete_varint` is never used
[INFO] [stdout]   --> src/codec/decode.rs:27:14
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub const fn complete_varint(input: &[u8]) -> Result<(&[u8], u64), VarintError> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lead` (lib) due to 1 previous error; 8 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: struct `WeakPbBuf` is never constructed
[INFO] [stdout]   --> src/lib.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct WeakPbBuf<T> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]    = note: `#[deny(unused_unconstructable_pub_structs)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct WeakPbBuf<T> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 19 |     buffer: Vec<u8>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `buffer` is never read
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct WeakPb<'buf, T> {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 24 |     buffer: &'buf [u8],
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `WireType` is never constructed
[INFO] [stdout]  --> src/codec/mod.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct WireType(u8);
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]   --> src/codec/mod.rs:7:15
[INFO] [stdout]    |
[INFO] [stdout]  6 | impl WireType {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout]  7 |     pub const VARINT: Self = Self(0);
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout]  8 |     pub const I64: Self = Self(1);
[INFO] [stdout]    |               ^^^
[INFO] [stdout]  9 |     pub const LEN: Self = Self(2);
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 10 |     pub const SGROUP: Self = Self(3);
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 11 |     pub const EGROUP: Self = Self(4);
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 12 |     pub const I32: Self = Self(5);
[INFO] [stdout]    |               ^^^
[INFO] [stdout] 13 |
[INFO] [stdout] 14 |     pub const fn into_u8(self) -> u8 {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub const fn from_u8(num: u8) -> Option<Self> {
[INFO] [stdout]    |                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lead` (lib test) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a414065b93d75bfb8025eb2cbc2a4d86ff91f18ef4fbfd7ad071c4f8b2c55438", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a414065b93d75bfb8025eb2cbc2a4d86ff91f18ef4fbfd7ad071c4f8b2c55438", kill_on_drop: false }`
[INFO] [stdout] a414065b93d75bfb8025eb2cbc2a4d86ff91f18ef4fbfd7ad071c4f8b2c55438
