[INFO] cloning repository https://github.com/RunThem/libu.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RunThem/libu.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRunThem%2Flibu.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRunThem%2Flibu.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea7fcb0d79d8c013013a8f7c67fdda8ad6b9b2d1
[INFO] checking RunThem/libu.rs against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRunThem%2Flibu.rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RunThem/libu.rs
[INFO] finished tweaking git repo https://github.com/RunThem/libu.rs
[INFO] tweaked toml for git repo https://github.com/RunThem/libu.rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RunThem/libu.rs 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] crate git repo https://github.com/RunThem/libu.rs 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded colored v3.0.0
[INFO] [stderr]   Downloaded extend v1.2.0
[INFO] [stderr]   Downloaded find-msvc-tools v0.1.1
[INFO] [stderr]   Downloaded windows-strings v0.5.0
[INFO] [stderr]   Downloaded windows-result v0.4.0
[INFO] [stderr]   Downloaded tynm v0.2.0
[INFO] [stderr]   Downloaded windows-core v0.62.0
[INFO] [stderr]   Downloaded cc v1.2.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 6da8b60b2f7701ba5b7a26f1df46230e37bd85a40d66daf1dff962a8877ba29e
[INFO] running `Command { std: "docker" "start" "-a" "6da8b60b2f7701ba5b7a26f1df46230e37bd85a40d66daf1dff962a8877ba29e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6da8b60b2f7701ba5b7a26f1df46230e37bd85a40d66daf1dff962a8877ba29e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6da8b60b2f7701ba5b7a26f1df46230e37bd85a40d66daf1dff962a8877ba29e", kill_on_drop: false }`
[INFO] [stdout] 6da8b60b2f7701ba5b7a26f1df46230e37bd85a40d66daf1dff962a8877ba29e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 05090c56ab5508ee0f9c38308aa8a883f1178a983b4f5f93df46bdeb8e556afa
[INFO] running `Command { std: "docker" "start" "-a" "05090c56ab5508ee0f9c38308aa8a883f1178a983b4f5f93df46bdeb8e556afa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking strsim v0.11.1
[INFO] [stderr]     Checking colored v3.0.0
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]     Checking libu-macro v0.1.0 (/opt/rustwide/workdir/libu-macro)
[INFO] [stderr]     Checking libu-log v0.1.0 (/opt/rustwide/workdir/libu-log)
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.106
[INFO] [stderr]     Checking darling_core v0.21.3
[INFO] [stderr]     Checking tynm v0.2.0
[INFO] [stderr]     Checking libu-chan v0.1.0 (/opt/rustwide/workdir/libu-chan)
[INFO] [stderr]    Compiling extend v1.2.0
[INFO] [stderr]     Checking libu-point v0.1.0 (/opt/rustwide/workdir/libu-point)
[INFO] [stderr]     Checking libu-trait v0.1.0 (/opt/rustwide/workdir/libu-trait)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> libu-trait/src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> libu-trait/src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> libu-trait/src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]   --> libu-trait/src/lib.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::cell::RefCell;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]   --> libu-trait/src/lib.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use std::rc::Rc;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc` and `Mutex`
[INFO] [stdout]   --> libu-trait/src/lib.rs:18:17
[INFO] [stdout]    |
[INFO] [stdout] 18 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]     Checking libu-derive v0.1.0 (/opt/rustwide/workdir/libu-derive)
[INFO] [stderr]     Checking libu-timer v0.1.0 (/opt/rustwide/workdir/libu-timer)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> libu-timer/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> libu-timer/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libu-timer` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `libu-timer` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "05090c56ab5508ee0f9c38308aa8a883f1178a983b4f5f93df46bdeb8e556afa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05090c56ab5508ee0f9c38308aa8a883f1178a983b4f5f93df46bdeb8e556afa", kill_on_drop: false }`
[INFO] [stdout] 05090c56ab5508ee0f9c38308aa8a883f1178a983b4f5f93df46bdeb8e556afa
