[INFO] cloning repository https://github.com/walterpie/circus-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/walterpie/circus-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalterpie%2Fcircus-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalterpie%2Fcircus-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb861e31e40b26dc3537d239a28f24aa35c646ee
[INFO] testing walterpie/circus-backend against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwalterpie%2Fcircus-backend" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/walterpie/circus-backend 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/walterpie/circus-backend
[INFO] finished tweaking git repo https://github.com/walterpie/circus-backend
[INFO] tweaked toml for git repo https://github.com/walterpie/circus-backend written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/walterpie/circus-backend 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 siphasher v0.3.2
[INFO] [stderr]   Downloaded base64 v0.12.0
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[INFO] [stderr]   Downloaded postgres-types v0.1.1
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[INFO] [stderr]   Downloaded actix-identity v0.2.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.34
[INFO] [stderr]   Downloaded pdcurses-sys v0.7.1
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[INFO] [stderr]   Downloaded postgres-protocol v0.5.1
[INFO] [stderr]   Downloaded tokio-postgres v0.5.3
[INFO] [stderr]   Downloaded async-trait v0.1.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] 273c78e4ce8cc3fb3c9e9676274d7ff630015b477a013c8c8e2e452482e75b93
[INFO] running `Command { std: "docker" "start" "-a" "273c78e4ce8cc3fb3c9e9676274d7ff630015b477a013c8c8e2e452482e75b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "273c78e4ce8cc3fb3c9e9676274d7ff630015b477a013c8c8e2e452482e75b93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "273c78e4ce8cc3fb3c9e9676274d7ff630015b477a013c8c8e2e452482e75b93", kill_on_drop: false }`
[INFO] [stdout] 273c78e4ce8cc3fb3c9e9676274d7ff630015b477a013c8c8e2e452482e75b93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] f85bae667e5fc7d65809961d4906201335838eb0654816770d9ac0efeaf00ec9
[INFO] running `Command { std: "docker" "start" "-a" "f85bae667e5fc7d65809961d4906201335838eb0654816770d9ac0efeaf00ec9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]    Compiling futures v0.3.4
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[INFO] [stderr]    Compiling tokio-rustls v0.12.2
[INFO] [stderr]    Compiling trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling tokio-postgres v0.5.3
[INFO] [stderr]    Compiling actix-codec v0.2.0
[INFO] [stderr]    Compiling h2 v0.2.2
[INFO] [stderr]    Compiling actix-utils v1.0.6
[INFO] [stderr]    Compiling actix-tls v1.0.0
[INFO] [stderr]    Compiling actix-server v1.0.2
[INFO] [stderr]    Compiling trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]    Compiling actix-testing v1.0.0
[INFO] [stderr]    Compiling postgres-native-tls v0.3.0
[INFO] [stderr]    Compiling actix-connect v1.0.2
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling actix-router v0.2.4
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling blake2b_simd v0.5.10
[INFO] [stderr]    Compiling actix-http v1.0.1
[INFO] [stderr]    Compiling rust-argon2 v0.8.2
[INFO] [stderr]    Compiling awc v1.0.1
[INFO] [stderr]    Compiling actix-web v2.0.0
[INFO] [stderr]    Compiling actix-identity v0.2.1
[INFO] [stderr]    Compiling circus-backend v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_closure)]
[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 `circus-backend` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f85bae667e5fc7d65809961d4906201335838eb0654816770d9ac0efeaf00ec9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f85bae667e5fc7d65809961d4906201335838eb0654816770d9ac0efeaf00ec9", kill_on_drop: false }`
[INFO] [stdout] f85bae667e5fc7d65809961d4906201335838eb0654816770d9ac0efeaf00ec9