[INFO] fetching crate sphrs 0.1.3...
[INFO] checking sphrs-0.1.3 against 1.55.0 for beta-1.56-3
[INFO] extracting crate sphrs 0.1.3 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate sphrs 0.1.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sphrs 0.1.3
[INFO] finished tweaking crates.io crate sphrs 0.1.3
[INFO] tweaked toml for crates.io crate sphrs 0.1.3 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate sphrs 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7efb82f9a815bc9a606c4e325c8d0ab09b2c4441155aec19f2ef21cecaa2300
[INFO] running `Command { std: "docker" "start" "-a" "a7efb82f9a815bc9a606c4e325c8d0ab09b2c4441155aec19f2ef21cecaa2300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7efb82f9a815bc9a606c4e325c8d0ab09b2c4441155aec19f2ef21cecaa2300", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7efb82f9a815bc9a606c4e325c8d0ab09b2c4441155aec19f2ef21cecaa2300", kill_on_drop: false }`
[INFO] [stdout] a7efb82f9a815bc9a606c4e325c8d0ab09b2c4441155aec19f2ef21cecaa2300
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e24ac6268d30fd4d1c35ee8b7a49e93cdddecc12b56a6e900d229c451c0f272
[INFO] running `Command { std: "docker" "start" "-a" "5e24ac6268d30fd4d1c35ee8b7a49e93cdddecc12b56a6e900d229c451c0f272", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking sphrs v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> benches/bench.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(test)]
[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 `sphrs` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5e24ac6268d30fd4d1c35ee8b7a49e93cdddecc12b56a6e900d229c451c0f272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e24ac6268d30fd4d1c35ee8b7a49e93cdddecc12b56a6e900d229c451c0f272", kill_on_drop: false }`
[INFO] [stdout] 5e24ac6268d30fd4d1c35ee8b7a49e93cdddecc12b56a6e900d229c451c0f272
