[INFO] fetching crate dochy_compaction 0.7.1...
[INFO] testing dochy_compaction-0.7.1 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate dochy_compaction 0.7.1 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate dochy_compaction 0.7.1 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dochy_compaction 0.7.1
[INFO] finished tweaking crates.io crate dochy_compaction 0.7.1
[INFO] tweaked toml for crates.io crate dochy_compaction 0.7.1 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 90d6edc1e2880062dacd2dec7ee136b924d7a880f8266a261e4e265ed3be5ba7
[INFO] running `Command { std: "docker" "start" "-a" "90d6edc1e2880062dacd2dec7ee136b924d7a880f8266a261e4e265ed3be5ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "90d6edc1e2880062dacd2dec7ee136b924d7a880f8266a261e4e265ed3be5ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90d6edc1e2880062dacd2dec7ee136b924d7a880f8266a261e4e265ed3be5ba7", kill_on_drop: false }`
[INFO] [stdout] 90d6edc1e2880062dacd2dec7ee136b924d7a880f8266a261e4e265ed3be5ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51ee77d30888b789f4fec677d2ac87d6de86d48c4bd0f847a5f231df7876dc72
[INFO] running `Command { std: "docker" "start" "-a" "51ee77d30888b789f4fec677d2ac87d6de86d48c4bd0f847a5f231df7876dc72", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling with_capacity_safe v0.3.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[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/with_capacity_safe-0.3.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_reserve)]
[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 `with_capacity_safe` 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" "51ee77d30888b789f4fec677d2ac87d6de86d48c4bd0f847a5f231df7876dc72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ee77d30888b789f4fec677d2ac87d6de86d48c4bd0f847a5f231df7876dc72", kill_on_drop: false }`
[INFO] [stdout] 51ee77d30888b789f4fec677d2ac87d6de86d48c4bd0f847a5f231df7876dc72
