[INFO] cloning repository https://github.com/KerrMetric/virtue [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KerrMetric/virtue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKerrMetric%2Fvirtue", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKerrMetric%2Fvirtue'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ace5e07cabfea2cf22f43e6e7c984e77ac9a8443 [INFO] testing KerrMetric/virtue against 1.55.0 for beta-1.56-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKerrMetric%2Fvirtue" "/workspace/builds/worker-104/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-104/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/KerrMetric/virtue 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] removed /workspace/builds/worker-104/source/.cargo/config [INFO] started tweaking git repo https://github.com/KerrMetric/virtue [INFO] finished tweaking git repo https://github.com/KerrMetric/virtue [INFO] tweaked toml for git repo https://github.com/KerrMetric/virtue written to /workspace/builds/worker-104/source/Cargo.toml [INFO] crate git repo https://github.com/KerrMetric/virtue 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded tiny-keccak v1.5.0 [INFO] [stderr] Downloaded byte-slice-cast v0.3.2 [INFO] [stderr] Downloaded bitvec v0.14.0 [INFO] [stderr] Downloaded parity-scale-codec v1.0.6 [INFO] [stderr] Downloaded parity-scale-codec-derive v1.0.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] beaaae987840f603abe8eea4345aa9104fe055369455459c440e1709082b8659 [INFO] running `Command { std: "docker" "start" "-a" "beaaae987840f603abe8eea4345aa9104fe055369455459c440e1709082b8659", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "beaaae987840f603abe8eea4345aa9104fe055369455459c440e1709082b8659", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "beaaae987840f603abe8eea4345aa9104fe055369455459c440e1709082b8659", kill_on_drop: false }` [INFO] [stdout] beaaae987840f603abe8eea4345aa9104fe055369455459c440e1709082b8659 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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] 55aedd834f33c4c7aa499b5b715608b80b111961125066ed9481826c20fb0bb7 [INFO] running `Command { std: "docker" "start" "-a" "55aedd834f33c4c7aa499b5b715608b80b111961125066ed9481826c20fb0bb7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.5 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.5 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling serde v1.0.101 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Compiling crunchy v0.2.2 [INFO] [stderr] Compiling wee_alloc v0.4.5 [INFO] [stderr] Compiling arrayvec v0.4.11 [INFO] [stderr] Compiling nodrop v0.1.13 [INFO] [stderr] Compiling memory_units v0.4.0 [INFO] [stderr] Compiling byte-slice-cast v0.3.2 [INFO] [stderr] Compiling bitvec v0.14.0 [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.3.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/smallvec-0.6.10/lib.rs:33:32 [INFO] [stdout] | [INFO] [stdout] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling itertools v0.8.0 [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 `smallvec` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "55aedd834f33c4c7aa499b5b715608b80b111961125066ed9481826c20fb0bb7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "55aedd834f33c4c7aa499b5b715608b80b111961125066ed9481826c20fb0bb7", kill_on_drop: false }` [INFO] [stdout] 55aedd834f33c4c7aa499b5b715608b80b111961125066ed9481826c20fb0bb7