[INFO] cloning repository https://github.com/jackpot51/friar
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jackpot51/friar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackpot51%2Ffriar", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackpot51%2Ffriar'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d67dbb99eab867fa0a04191d312da3b6d75accf4
[INFO] testing jackpot51/friar against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjackpot51%2Ffriar" "/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/jackpot51/friar 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] removed /workspace/builds/worker-7/source/.cargo/config
[INFO] started tweaking git repo https://github.com/jackpot51/friar
[INFO] finished tweaking git repo https://github.com/jackpot51/friar
[INFO] tweaked toml for git repo https://github.com/jackpot51/friar written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jackpot51/friar already has a lockfile, it will not be regenerated
[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-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b3e57107bf2fe190a7fdd73887a30fae2c9d18d301b2f31427f342f026bbb23
[INFO] running `Command { std: "docker" "start" "-a" "2b3e57107bf2fe190a7fdd73887a30fae2c9d18d301b2f31427f342f026bbb23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b3e57107bf2fe190a7fdd73887a30fae2c9d18d301b2f31427f342f026bbb23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b3e57107bf2fe190a7fdd73887a30fae2c9d18d301b2f31427f342f026bbb23", kill_on_drop: false }`
[INFO] [stdout] 2b3e57107bf2fe190a7fdd73887a30fae2c9d18d301b2f31427f342f026bbb23
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7657c57df7e13f870bb1bde0388437411ebd445992fcf1c73f8602964a3a344a
[INFO] running `Command { std: "docker" "start" "-a" "7657c57df7e13f870bb1bde0388437411ebd445992fcf1c73f8602964a3a344a", 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]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling procedural-masquerade v0.1.5
[INFO] [stderr]    Compiling cast_trait v0.1.2
[INFO] [stderr]    Compiling pub-iterator-type v0.1.1
[INFO] [stderr]    Compiling podio v0.1.7
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]    Compiling protobuf v2.14.0
[INFO] [stderr]    Compiling addr2line v0.12.1
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling stb_truetype v0.3.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling sdl2-sys v0.32.6
[INFO] [stderr]    Compiling error-chain v0.12.2
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]    Compiling vec3 v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.48
[INFO] [stderr]    Compiling stb_truetype v0.2.8
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling par-map v0.1.4
[INFO] [stderr]    Compiling vec2 v0.2.1
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling rusttype v0.2.4
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling const-random v0.1.8
[INFO] [stderr]    Compiling polygon2 v0.3.0
[INFO] [stderr]    Compiling flate2 v0.2.20
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/polygon2-0.3.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(alloc)]
[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 `polygon2`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7657c57df7e13f870bb1bde0388437411ebd445992fcf1c73f8602964a3a344a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7657c57df7e13f870bb1bde0388437411ebd445992fcf1c73f8602964a3a344a", kill_on_drop: false }`
[INFO] [stdout] 7657c57df7e13f870bb1bde0388437411ebd445992fcf1c73f8602964a3a344a
