[INFO] fetching crate tari_mmr 0.2.7...
[INFO] testing tari_mmr-0.2.7 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate tari_mmr 0.2.7 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate tari_mmr 0.2.7 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tari_mmr 0.2.7
[INFO] finished tweaking crates.io crate tari_mmr 0.2.7
[INFO] tweaked toml for crates.io crate tari_mmr 0.2.7 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded croaring v0.4.5
[INFO] [stderr]   Downloaded croaring-sys v0.4.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d79af952798180f6b8fe612a01ba13adbbc06c8f185431054b62ba7b27f4a7c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7d79af952798180f6b8fe612a01ba13adbbc06c8f185431054b62ba7b27f4a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d79af952798180f6b8fe612a01ba13adbbc06c8f185431054b62ba7b27f4a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d79af952798180f6b8fe612a01ba13adbbc06c8f185431054b62ba7b27f4a7c", kill_on_drop: false }`
[INFO] [stdout] 7d79af952798180f6b8fe612a01ba13adbbc06c8f185431054b62ba7b27f4a7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a47f9a16be086fd5a3320487f51f1c18b5a4f994939c0ac80ef3688d4ec86aad
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a47f9a16be086fd5a3320487f51f1c18b5a4f994939c0ac80ef3688d4ec86aad", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]    Compiling newtype-ops v0.1.4
[INFO] [stderr]    Compiling clear_on_drop v0.2.4
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clear_on_drop-0.2.4/src/lib.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![cfg_attr(feature = "nightly", feature(llvm_asm, i128_type, specialization))]
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `clear_on_drop`
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a47f9a16be086fd5a3320487f51f1c18b5a4f994939c0ac80ef3688d4ec86aad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a47f9a16be086fd5a3320487f51f1c18b5a4f994939c0ac80ef3688d4ec86aad", kill_on_drop: false }`
[INFO] [stdout] a47f9a16be086fd5a3320487f51f1c18b5a4f994939c0ac80ef3688d4ec86aad
