[INFO] fetching crate cxmr-ta 0.0.1...
[INFO] checking cxmr-ta-0.0.1 against 1.95.0 for pr-155915
[INFO] extracting crate cxmr-ta 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate cxmr-ta 0.0.1
[INFO] finished tweaking crates.io crate cxmr-ta 0.0.1
[INFO] tweaked toml for crates.io crate cxmr-ta 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate cxmr-ta 0.0.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 57 packages to latest compatible versions
[INFO] [stderr]       Adding err-convert-macro v0.0.1 (available: v0.1.1)
[INFO] [stderr]       Adding rand v0.6.5 (available: v0.10.1)
[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]  Downloading crates ...
[INFO] [stderr]   Downloaded scopeguard v0.3.3
[INFO] [stderr]   Downloaded err-convert-macro v0.0.1
[INFO] [stderr]   Downloaded cxmr-orderbook v0.0.1
[INFO] [stderr]   Downloaded cxmr-ta-core v0.1.5
[INFO] [stderr]   Downloaded cxmr-exchanges v0.0.1
[INFO] [stderr]   Downloaded cxmr-balances v0.0.1
[INFO] [stderr]   Downloaded hashbrown v0.1.8
[INFO] [stderr]   Downloaded cxmr-feeds v0.0.1
[INFO] [stderr]   Downloaded cxmr-currency v0.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0189d197920f92a2165211822561de25d2b401ede14e3ac5fe8f65bc268192a4
[INFO] running `Command { std: "docker" "start" "-a" "0189d197920f92a2165211822561de25d2b401ede14e3ac5fe8f65bc268192a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0189d197920f92a2165211822561de25d2b401ede14e3ac5fe8f65bc268192a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0189d197920f92a2165211822561de25d2b401ede14e3ac5fe8f65bc268192a4", kill_on_drop: false }`
[INFO] [stdout] 0189d197920f92a2165211822561de25d2b401ede14e3ac5fe8f65bc268192a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc508bbf10f232bf8ac2ba7099e51960159e87efc2a546da1655a996228f5fca
[INFO] running `Command { std: "docker" "start" "-a" "dc508bbf10f232bf8ac2ba7099e51960159e87efc2a546da1655a996228f5fca", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]     Checking backtrace v0.3.76
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking err-convert-macro v0.0.1
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking error-chain v0.11.0
[INFO] [stderr]     Checking cxmr-ta-core v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking cxmr-currency v0.0.1
[INFO] [stderr]     Checking cxmr-balances v0.0.1
[INFO] [stderr]     Checking cxmr-exchanges v0.0.1
[INFO] [stderr]     Checking cxmr-feeds v0.0.1
[INFO] [stderr]     Checking cxmr-orderbook v0.0.1
[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/cxmr-orderbook-0.0.1/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cxmr-orderbook` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "dc508bbf10f232bf8ac2ba7099e51960159e87efc2a546da1655a996228f5fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc508bbf10f232bf8ac2ba7099e51960159e87efc2a546da1655a996228f5fca", kill_on_drop: false }`
[INFO] [stdout] dc508bbf10f232bf8ac2ba7099e51960159e87efc2a546da1655a996228f5fca