[INFO] fetching crate rust_graphics_log 0.1.7...
[INFO] testing rust_graphics_log-0.1.7 against 1.55.0 for beta-1.56-1
[INFO] extracting crate rust_graphics_log 0.1.7 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate rust_graphics_log 0.1.7 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_graphics_log 0.1.7
[INFO] finished tweaking crates.io crate rust_graphics_log 0.1.7
[INFO] tweaked toml for crates.io crate rust_graphics_log 0.1.7 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate crates.io crate rust_graphics_log 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b42e975cd5d5b4dcf19be5c9e5df46e870c68369e29a6e1b11531a8f5cab4b6a
[INFO] running `Command { std: "docker" "start" "-a" "b42e975cd5d5b4dcf19be5c9e5df46e870c68369e29a6e1b11531a8f5cab4b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b42e975cd5d5b4dcf19be5c9e5df46e870c68369e29a6e1b11531a8f5cab4b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b42e975cd5d5b4dcf19be5c9e5df46e870c68369e29a6e1b11531a8f5cab4b6a", kill_on_drop: false }`
[INFO] [stdout] b42e975cd5d5b4dcf19be5c9e5df46e870c68369e29a6e1b11531a8f5cab4b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 38dfd2910de8dfa828c36bfcd865b9164083888ddd439b2cde59d83d253ae69f
[INFO] running `Command { std: "docker" "start" "-a" "38dfd2910de8dfa828c36bfcd865b9164083888ddd439b2cde59d83d253ae69f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_graphics_log v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(thread_id_value)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn get_thread_id() -> u64 {
[INFO] [stdout]   |                           --- expected `u64` because of return type
[INFO] [stdout] 4 |     return std::thread::current().id().as_u64();
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `u64`, found struct `NonZeroU64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_graphics_log` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "38dfd2910de8dfa828c36bfcd865b9164083888ddd439b2cde59d83d253ae69f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38dfd2910de8dfa828c36bfcd865b9164083888ddd439b2cde59d83d253ae69f", kill_on_drop: false }`
[INFO] [stdout] 38dfd2910de8dfa828c36bfcd865b9164083888ddd439b2cde59d83d253ae69f