[INFO] fetching crate rust_poker 0.1.14...
[INFO] testing rust_poker-0.1.14 against 1.54.0 for beta-1.55-1
[INFO] extracting crate rust_poker 0.1.14 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rust_poker 0.1.14 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust_poker 0.1.14
[INFO] finished tweaking crates.io crate rust_poker 0.1.14
[INFO] tweaked toml for crates.io crate rust_poker 0.1.14 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fc35357774f6bbd3c265fd7e58b3bab7aba16944e1902959da5b545eb4484d1
[INFO] running `Command { std: "docker" "start" "-a" "8fc35357774f6bbd3c265fd7e58b3bab7aba16944e1902959da5b545eb4484d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fc35357774f6bbd3c265fd7e58b3bab7aba16944e1902959da5b545eb4484d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc35357774f6bbd3c265fd7e58b3bab7aba16944e1902959da5b545eb4484d1", kill_on_drop: false }`
[INFO] [stdout] 8fc35357774f6bbd3c265fd7e58b3bab7aba16944e1902959da5b545eb4484d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5d35b8cc2b96e68f5ac8055a72fcc2d62e8df71852ede83c89d27db522d57e1
[INFO] running `Command { std: "docker" "start" "-a" "a5d35b8cc2b96e68f5ac8055a72fcc2d62e8df71852ede83c89d27db522d57e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling read_write v0.1.2
[INFO] [stderr]    Compiling fastdivide v0.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.4.4
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling gen_eval_table v0.1.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rust_poker v0.1.14 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/equity_calculator/simulator.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_poker`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a5d35b8cc2b96e68f5ac8055a72fcc2d62e8df71852ede83c89d27db522d57e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5d35b8cc2b96e68f5ac8055a72fcc2d62e8df71852ede83c89d27db522d57e1", kill_on_drop: false }`
[INFO] [stdout] a5d35b8cc2b96e68f5ac8055a72fcc2d62e8df71852ede83c89d27db522d57e1
