[INFO] cloning repository https://github.com/anellie/chevii
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anellie/chevii" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanellie%2Fchevii", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanellie%2Fchevii'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c1eb5a568aee4e59d4cd1a4391ece7cbb4d06b03
[INFO] testing anellie/chevii against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanellie%2Fchevii" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anellie/chevii on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anellie/chevii
[INFO] finished tweaking git repo https://github.com/anellie/chevii
[INFO] tweaked toml for git repo https://github.com/anellie/chevii written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/anellie/chevii already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded link-cplusplus v1.0.6
[INFO] [stderr]   Downloaded scratch v1.0.0
[INFO] [stderr]   Downloaded cxx-build v1.0.60
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.60
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.60
[INFO] [stderr]   Downloaded cxx v1.0.60
[INFO] [stderr]   Downloaded chess v3.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6434db135284639f277cde2fd8323e5a946f44a48cd91aeafbec5a18ba93f5c2
[INFO] running `Command { std: "docker" "start" "-a" "6434db135284639f277cde2fd8323e5a946f44a48cd91aeafbec5a18ba93f5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6434db135284639f277cde2fd8323e5a946f44a48cd91aeafbec5a18ba93f5c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6434db135284639f277cde2fd8323e5a946f44a48cd91aeafbec5a18ba93f5c2", kill_on_drop: false }`
[INFO] [stdout] 6434db135284639f277cde2fd8323e5a946f44a48cd91aeafbec5a18ba93f5c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2703b0acd40cbff0a8cad3499aa4b48a3d61610fa029d14330d108ef6893895e
[INFO] running `Command { std: "docker" "start" "-a" "2703b0acd40cbff0a8cad3499aa4b48a3d61610fa029d14330d108ef6893895e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.34
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling scratch v1.0.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling cxxbridge-flags v1.0.60
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling codespan-reporting v0.11.1
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling link-cplusplus v1.0.6
[INFO] [stderr]    Compiling cxx v1.0.60
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling cxx-build v1.0.60
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling cxxbridge-macro v1.0.60
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling chevii v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling chess v3.2.0
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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 `chevii` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2703b0acd40cbff0a8cad3499aa4b48a3d61610fa029d14330d108ef6893895e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2703b0acd40cbff0a8cad3499aa4b48a3d61610fa029d14330d108ef6893895e", kill_on_drop: false }`
[INFO] [stdout] 2703b0acd40cbff0a8cad3499aa4b48a3d61610fa029d14330d108ef6893895e