[INFO] fetching crate trait-union 0.1.4... [INFO] testing trait-union-0.1.4 against 1.60.0 for beta-1.61-1 [INFO] extracting crate trait-union 0.1.4 into /workspace/builds/worker-56/source [INFO] validating manifest of crates.io crate trait-union 0.1.4 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate trait-union 0.1.4 [INFO] finished tweaking crates.io crate trait-union 0.1.4 [INFO] tweaked toml for crates.io crate trait-union 0.1.4 written to /workspace/builds/worker-56/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded trait-union-proc v0.1.4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] df742bde41ca584723e03c7e27f5d376b3d332a812cab351fb816ca74066f8f9 [INFO] running `Command { std: "docker" "start" "-a" "df742bde41ca584723e03c7e27f5d376b3d332a812cab351fb816ca74066f8f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "df742bde41ca584723e03c7e27f5d376b3d332a812cab351fb816ca74066f8f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df742bde41ca584723e03c7e27f5d376b3d332a812cab351fb816ca74066f8f9", kill_on_drop: false }` [INFO] [stdout] df742bde41ca584723e03c7e27f5d376b3d332a812cab351fb816ca74066f8f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a0038e2982c4ed5990ebc2234e94bccae78749fd82d7af7f171640db6ea1263a [INFO] running `Command { std: "docker" "start" "-a" "a0038e2982c4ed5990ebc2234e94bccae78749fd82d7af7f171640db6ea1263a", kill_on_drop: false }` [INFO] [stderr] Compiling trait-union-proc v0.1.4 [INFO] [stderr] Compiling trait-union v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.00s [INFO] running `Command { std: "docker" "inspect" "a0038e2982c4ed5990ebc2234e94bccae78749fd82d7af7f171640db6ea1263a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a0038e2982c4ed5990ebc2234e94bccae78749fd82d7af7f171640db6ea1263a", kill_on_drop: false }` [INFO] [stdout] a0038e2982c4ed5990ebc2234e94bccae78749fd82d7af7f171640db6ea1263a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 40036fd466e24607b5e6fe7eed188112a3a00852146aa3bd440a12d714208b20 [INFO] running `Command { std: "docker" "start" "-a" "40036fd466e24607b5e6fe7eed188112a3a00852146aa3bd440a12d714208b20", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling trybuild v1.0.59 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling termcolor v1.1.3 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling toml v0.5.8 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling trait-union v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:2:19 [INFO] [stdout] | [INFO] [stdout] 2 | #![cfg_attr(test, feature(untagged_unions))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `trait-union` due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "40036fd466e24607b5e6fe7eed188112a3a00852146aa3bd440a12d714208b20", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40036fd466e24607b5e6fe7eed188112a3a00852146aa3bd440a12d714208b20", kill_on_drop: false }` [INFO] [stdout] 40036fd466e24607b5e6fe7eed188112a3a00852146aa3bd440a12d714208b20