[INFO] cloning repository https://github.com/grass-dev-pa/oasis-core-009
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/grass-dev-pa/oasis-core-009" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrass-dev-pa%2Foasis-core-009", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrass-dev-pa%2Foasis-core-009'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 24408ff042d1749e9b15c4d3b76d08334fb7038d
[INFO] testing grass-dev-pa/oasis-core-009 against 1.95.0 for beta-1.96-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgrass-dev-pa%2Foasis-core-009" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/grass-dev-pa/oasis-core-009
[INFO] finished tweaking git repo https://github.com/grass-dev-pa/oasis-core-009
[INFO] tweaked toml for git repo https://github.com/grass-dev-pa/oasis-core-009 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/grass-dev-pa/oasis-core-009 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 git repo https://github.com/grass-dev-pa/oasis-core-009 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] bd477b15d49927532f0199d14111bff9a0d5cd2faf4a3e55ebc801232598d699
[INFO] running `Command { std: "docker" "start" "-a" "bd477b15d49927532f0199d14111bff9a0d5cd2faf4a3e55ebc801232598d699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd477b15d49927532f0199d14111bff9a0d5cd2faf4a3e55ebc801232598d699", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd477b15d49927532f0199d14111bff9a0d5cd2faf4a3e55ebc801232598d699", kill_on_drop: false }`
[INFO] [stdout] bd477b15d49927532f0199d14111bff9a0d5cd2faf4a3e55ebc801232598d699
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 465c307ee33f2ee591e88081c26627a8031c27a67cd2a337a3cce48468cbe915
[INFO] running `Command { std: "docker" "start" "-a" "465c307ee33f2ee591e88081c26627a8031c27a67cd2a337a3cce48468cbe915", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tracing-core v0.1.36
[INFO] [stderr]    Compiling oasis-cbor-value v0.5.1
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[INFO] [stderr]    Compiling allocator-api2 v0.2.21
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling oasis-cbor-derive v0.5.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/oasis-cbor-derive-0.5.1/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hashbrown v0.15.5
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `oasis-cbor-derive` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "465c307ee33f2ee591e88081c26627a8031c27a67cd2a337a3cce48468cbe915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "465c307ee33f2ee591e88081c26627a8031c27a67cd2a337a3cce48468cbe915", kill_on_drop: false }`
[INFO] [stdout] 465c307ee33f2ee591e88081c26627a8031c27a67cd2a337a3cce48468cbe915