[INFO] fetching crate scratchstack-aws-signature 0.10.2... [INFO] testing scratchstack-aws-signature-0.10.2 against 1.55.0 for beta-1.56-1 [INFO] extracting crate scratchstack-aws-signature 0.10.2 into /workspace/builds/worker-29/source [INFO] validating manifest of crates.io crate scratchstack-aws-signature 0.10.2 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 scratchstack-aws-signature 0.10.2 [INFO] finished tweaking crates.io crate scratchstack-aws-signature 0.10.2 [INFO] tweaked toml for crates.io crate scratchstack-aws-signature 0.10.2 written to /workspace/builds/worker-29/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] e4dbb72e914255e617a7ae619a271bd2446fd7e1c6e34537991888163d1f8b6c [INFO] running `Command { std: "docker" "start" "-a" "e4dbb72e914255e617a7ae619a271bd2446fd7e1c6e34537991888163d1f8b6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4dbb72e914255e617a7ae619a271bd2446fd7e1c6e34537991888163d1f8b6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4dbb72e914255e617a7ae619a271bd2446fd7e1c6e34537991888163d1f8b6c", kill_on_drop: false }` [INFO] [stdout] e4dbb72e914255e617a7ae619a271bd2446fd7e1c6e34537991888163d1f8b6c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-29/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] 7a0ccd76ff111367a2d86a650c70f6c5e4cc0395e095ec0c32e4a539403538e7 [INFO] running `Command { std: "docker" "start" "-a" "7a0ccd76ff111367a2d86a650c70f6c5e4cc0395e095ec0c32e4a539403538e7", 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 syn v1.0.76 [INFO] [stderr] Compiling futures-core v0.3.17 [INFO] [stderr] Compiling futures-task v0.3.17 [INFO] [stderr] Compiling pin-project-lite v0.2.7 [INFO] [stderr] Compiling pin-utils v0.1.0 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling tower-layer v0.3.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling once_cell v1.8.0 [INFO] [stderr] Compiling tower-service v0.3.1 [INFO] [stderr] Compiling untrusted v0.7.1 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling bytes v1.1.0 [INFO] [stderr] Compiling hex v0.4.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling tracing-core v0.1.19 [INFO] [stderr] Compiling ring v0.16.20 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling time v0.1.44 [INFO] [stderr] Compiling scratchstack-aws-principal v0.3.1 [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/scratchstack-aws-principal-0.3.1/src/lib.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(doc_cfg)] [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 `scratchstack-aws-principal` 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" "7a0ccd76ff111367a2d86a650c70f6c5e4cc0395e095ec0c32e4a539403538e7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a0ccd76ff111367a2d86a650c70f6c5e4cc0395e095ec0c32e4a539403538e7", kill_on_drop: false }` [INFO] [stdout] 7a0ccd76ff111367a2d86a650c70f6c5e4cc0395e095ec0c32e4a539403538e7