[INFO] fetching crate mcproto-rs 0.2.0...
[INFO] checking mcproto-rs-0.2.0 against 1.95.0 for pr-155915
[INFO] extracting crate mcproto-rs 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate mcproto-rs 0.2.0
[INFO] finished tweaking crates.io crate mcproto-rs 0.2.0
[INFO] tweaked toml for crates.io crate mcproto-rs 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mcproto-rs 0.2.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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" "+1.95.0" "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 28 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.12.3 (available: v0.22.1)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.10.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73952618f26ce0f13b83142360279d667282b5d4a7813fce3710562aa0822c36
[INFO] running `Command { std: "docker" "start" "-a" "73952618f26ce0f13b83142360279d667282b5d4a7813fce3710562aa0822c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73952618f26ce0f13b83142360279d667282b5d4a7813fce3710562aa0822c36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73952618f26ce0f13b83142360279d667282b5d4a7813fce3710562aa0822c36", kill_on_drop: false }`
[INFO] [stdout] 73952618f26ce0f13b83142360279d667282b5d4a7813fce3710562aa0822c36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 820731b8650c3eabac2673cc1fdda6f04af7e5b394c80a17d3d4ec1410c95019
[INFO] running `Command { std: "docker" "start" "-a" "820731b8650c3eabac2673cc1fdda6f04af7e5b394c80a17d3d4ec1410c95019", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mcproto-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "bench", feature(test))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(feature = "bench", feature(test))]
[INFO] [stdout]   |                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]     --> src/types.rs:903:1
[INFO] [stdout]      |
[INFO] [stdout]  903 | / mod tests {
[INFO] [stdout]  904 | |     use super::*;
[INFO] [stdout]  905 | |     use alloc::fmt::Debug;
[INFO] [stdout]  906 | |     use alloc::borrow::ToOwned;
[INFO] [stdout] ...    |
[INFO] [stdout] 1112 | | }
[INFO] [stdout]      | |_^
[INFO] [stdout]      |
[INFO] [stdout] note: the name `tests` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]     --> src/types.rs:8:9
[INFO] [stdout]      |
[INFO] [stdout]    8 | pub use super::chat::*;
[INFO] [stdout]      |         ^^^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]     --> src/types.rs:903:1
[INFO] [stdout]      |
[INFO] [stdout]  903 | / mod tests {
[INFO] [stdout]  904 | |     use super::*;
[INFO] [stdout]  905 | |     use alloc::fmt::Debug;
[INFO] [stdout]  906 | |     use alloc::borrow::ToOwned;
[INFO] [stdout] ...    |
[INFO] [stdout] 1112 | | }
[INFO] [stdout]      | |_^
[INFO] [stdout]      = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcproto-rs` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcproto-rs` (lib test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "820731b8650c3eabac2673cc1fdda6f04af7e5b394c80a17d3d4ec1410c95019", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "820731b8650c3eabac2673cc1fdda6f04af7e5b394c80a17d3d4ec1410c95019", kill_on_drop: false }`
[INFO] [stdout] 820731b8650c3eabac2673cc1fdda6f04af7e5b394c80a17d3d4ec1410c95019
