[INFO] fetching crate shovel 0.1.0...
[INFO] testing shovel-0.1.0 against 1.95.0 for beta-1.96-2
[INFO] extracting crate shovel 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate shovel 0.1.0
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate shovel 0.1.0
[INFO] tweaked toml for crates.io crate shovel 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate shovel 0.1.0 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] crate crates.io crate shovel 0.1.0 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 shovel_macros v0.1.0
[INFO] [stderr]   Downloaded unwind v0.4.2
[INFO] [stderr]   Downloaded unwind-sys v0.1.4
[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] 37f68bc4b3bfe549362ea36bb2df25fcae75b9a61ccd2a5faec9b0a6bf686013
[INFO] running `Command { std: "docker" "start" "-a" "37f68bc4b3bfe549362ea36bb2df25fcae75b9a61ccd2a5faec9b0a6bf686013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37f68bc4b3bfe549362ea36bb2df25fcae75b9a61ccd2a5faec9b0a6bf686013", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37f68bc4b3bfe549362ea36bb2df25fcae75b9a61ccd2a5faec9b0a6bf686013", kill_on_drop: false }`
[INFO] [stdout] 37f68bc4b3bfe549362ea36bb2df25fcae75b9a61ccd2a5faec9b0a6bf686013
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed054a877784dd6514ca6d14b43948b87481b6a2644b5a4537ee1824ec1f96fa
[INFO] running `Command { std: "docker" "start" "-a" "ed054a877784dd6514ca6d14b43948b87481b6a2644b5a4537ee1824ec1f96fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling shovel_macros v0.1.0
[INFO] [stderr]    Compiling shovel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `Command { std: "docker" "inspect" "ed054a877784dd6514ca6d14b43948b87481b6a2644b5a4537ee1824ec1f96fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed054a877784dd6514ca6d14b43948b87481b6a2644b5a4537ee1824ec1f96fa", kill_on_drop: false }`
[INFO] [stdout] ed054a877784dd6514ca6d14b43948b87481b6a2644b5a4537ee1824ec1f96fa
[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=warn" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3189f3eca4491cb8ae391c0fe9b77dee9bcee0c54926738796d53f5353450686
[INFO] running `Command { std: "docker" "start" "-a" "3189f3eca4491cb8ae391c0fe9b77dee9bcee0c54926738796d53f5353450686", kill_on_drop: false }`
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling unwind v0.4.2
[INFO] [stderr]    Compiling unwind-sys v0.1.4
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling foreign-types-macros v0.2.3
[INFO] [stderr]    Compiling shovel_macros v0.1.0
[INFO] [stderr]    Compiling foreign-types v0.5.0
[INFO] [stderr]    Compiling shovel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> examples/no-std-adder.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(lang_items, core_intrinsics, rustc_private)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shovel` (example "no-std-adder") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3189f3eca4491cb8ae391c0fe9b77dee9bcee0c54926738796d53f5353450686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3189f3eca4491cb8ae391c0fe9b77dee9bcee0c54926738796d53f5353450686", kill_on_drop: false }`
[INFO] [stdout] 3189f3eca4491cb8ae391c0fe9b77dee9bcee0c54926738796d53f5353450686
