[INFO] fetching crate tokio-mc 0.1.4...
[INFO] building tokio-mc-0.1.4 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate tokio-mc 0.1.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tokio-mc 0.1.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate tokio-mc 0.1.4
[INFO] tweaked toml for crates.io crate tokio-mc 0.1.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-mc 0.1.4 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tokio-mc 0.1.4 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f3f73a11a0bc7cc9ab3b2177692235795c26857c8df022e14cb35bd144f809f
[INFO] running `Command { std: "docker" "start" "-a" "8f3f73a11a0bc7cc9ab3b2177692235795c26857c8df022e14cb35bd144f809f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f3f73a11a0bc7cc9ab3b2177692235795c26857c8df022e14cb35bd144f809f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f3f73a11a0bc7cc9ab3b2177692235795c26857c8df022e14cb35bd144f809f", kill_on_drop: false }`
[INFO] [stdout] 8f3f73a11a0bc7cc9ab3b2177692235795c26857c8df022e14cb35bd144f809f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f741d80ec02b56b260e66d8622f19b81f30df350229f5c552c3ffc401e06818e
[INFO] running `Command { std: "docker" "start" "-a" "f741d80ec02b56b260e66d8622f19b81f30df350229f5c552c3ffc401e06818e", kill_on_drop: false }`
[INFO] [stderr]    Compiling bytes v1.7.2
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling mio v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.12
[INFO] [stderr]    Compiling async-trait v0.1.83
[INFO] [stderr]    Compiling tokio v1.40.0
[INFO] [stderr]    Compiling thiserror v2.0.12
[INFO] [stderr]    Compiling tokio-util v0.7.14
[INFO] [stderr]    Compiling tokio-mc v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/codec/mod.rs:188:14
[INFO] [stdout]     |
[INFO] [stdout] 188 |         for (i, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 188 |         for (_i, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |              +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `REQUEST_BYTE_LAST_LEN`
[INFO] [stdout]     |
[INFO] [stdout] 188 -         for (i, byte) in bytes.iter().enumerate() {
[INFO] [stdout] 188 +         for (frame::types::REQUEST_BYTE_LAST_LEN, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `McClientDecoder` is never constructed
[INFO] [stdout]   --> src/codec/tcp.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct McClientDecoder;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `McClientCodec` is never constructed
[INFO] [stdout]   --> src/codec/tcp.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct McClientCodec {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/codec/tcp.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl McClientCodec {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 27 |     pub(crate) const fn new() -> Self {
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ResponseHeader` is never constructed
[INFO] [stdout]   --> src/header.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ResponseHeader(pub HeaderByte);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `len` are never used
[INFO] [stdout]   --> src/header.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl ResponseHeader {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 40 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.19s
[INFO] running `Command { std: "docker" "inspect" "f741d80ec02b56b260e66d8622f19b81f30df350229f5c552c3ffc401e06818e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f741d80ec02b56b260e66d8622f19b81f30df350229f5c552c3ffc401e06818e", kill_on_drop: false }`
[INFO] [stdout] f741d80ec02b56b260e66d8622f19b81f30df350229f5c552c3ffc401e06818e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80527d18c0514e6f3c8d8e1b9b38a1927626b5605d4adc5c0a719f97a57b04d0
[INFO] running `Command { std: "docker" "start" "-a" "80527d18c0514e6f3c8d8e1b9b38a1927626b5605d4adc5c0a719f97a57b04d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.27
[INFO] [stderr]    Compiling colorchoice v1.0.4
[INFO] [stderr]    Compiling anstyle v1.0.11
[INFO] [stderr]    Compiling anstyle-parse v0.2.7
[INFO] [stderr]    Compiling anstyle-query v1.1.3
[INFO] [stderr]    Compiling humantime v2.2.0
[INFO] [stderr]    Compiling regex-automata v0.4.8
[INFO] [stderr]    Compiling tokio-mc v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling anstream v0.6.19
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/codec/mod.rs:188:14
[INFO] [stdout]     |
[INFO] [stdout] 188 |         for (i, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 188 |         for (_i, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |              +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `REQUEST_BYTE_LAST_LEN`
[INFO] [stdout]     |
[INFO] [stdout] 188 -         for (i, byte) in bytes.iter().enumerate() {
[INFO] [stdout] 188 +         for (frame::types::REQUEST_BYTE_LAST_LEN, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `McClientDecoder` is never constructed
[INFO] [stdout]   --> src/codec/tcp.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct McClientDecoder;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `McClientCodec` is never constructed
[INFO] [stdout]   --> src/codec/tcp.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct McClientCodec {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/codec/tcp.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl McClientCodec {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 27 |     pub(crate) const fn new() -> Self {
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ResponseHeader` is never constructed
[INFO] [stdout]   --> src/header.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ResponseHeader(pub HeaderByte);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `len` are never used
[INFO] [stdout]   --> src/header.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl ResponseHeader {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 40 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/codec/mod.rs:188:14
[INFO] [stdout]     |
[INFO] [stdout] 188 |         for (i, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: if this is intentional, prefix it with an underscore
[INFO] [stdout]     |
[INFO] [stdout] 188 |         for (_i, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |              +
[INFO] [stdout] help: you might have meant to pattern match on the similarly named constant `REQUEST_BYTE_LAST_LEN`
[INFO] [stdout]     |
[INFO] [stdout] 188 -         for (i, byte) in bytes.iter().enumerate() {
[INFO] [stdout] 188 +         for (frame::types::REQUEST_BYTE_LAST_LEN, byte) in bytes.iter().enumerate() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `McClientDecoder` is never constructed
[INFO] [stdout]   --> src/codec/tcp.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub(crate) struct McClientDecoder;
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `McClientCodec` is never constructed
[INFO] [stdout]   --> src/codec/tcp.rs:22:19
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(crate) struct McClientCodec {
[INFO] [stdout]    |                   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/codec/tcp.rs:27:25
[INFO] [stdout]    |
[INFO] [stdout] 26 | impl McClientCodec {
[INFO] [stdout]    | ------------------ associated function in this implementation
[INFO] [stdout] 27 |     pub(crate) const fn new() -> Self {
[INFO] [stdout]    |                         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ResponseHeader` is never constructed
[INFO] [stdout]   --> src/header.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct ResponseHeader(pub HeaderByte);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `len` are never used
[INFO] [stdout]   --> src/header.rs:40:12
[INFO] [stdout]    |
[INFO] [stdout] 39 | impl ResponseHeader {
[INFO] [stdout]    | ------------------- associated items in this implementation
[INFO] [stdout] 40 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 68 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.43s
[INFO] running `Command { std: "docker" "inspect" "80527d18c0514e6f3c8d8e1b9b38a1927626b5605d4adc5c0a719f97a57b04d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80527d18c0514e6f3c8d8e1b9b38a1927626b5605d4adc5c0a719f97a57b04d0", kill_on_drop: false }`
[INFO] [stdout] 80527d18c0514e6f3c8d8e1b9b38a1927626b5605d4adc5c0a719f97a57b04d0