[INFO] fetching crate sonos 0.1.4...
[INFO] testing sonos-0.1.4 against 1.59.0 for beta-1.60-1
[INFO] extracting crate sonos 0.1.4 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate sonos 0.1.4 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sonos 0.1.4
[INFO] finished tweaking crates.io crate sonos 0.1.4
[INFO] tweaked toml for crates.io crate sonos 0.1.4 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33a90159241866d1294e13288ceb208ed30403c6f06ad60714381e7ffa58cc39
[INFO] running `Command { std: "docker" "start" "-a" "33a90159241866d1294e13288ceb208ed30403c6f06ad60714381e7ffa58cc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33a90159241866d1294e13288ceb208ed30403c6f06ad60714381e7ffa58cc39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33a90159241866d1294e13288ceb208ed30403c6f06ad60714381e7ffa58cc39", kill_on_drop: false }`
[INFO] [stdout] 33a90159241866d1294e13288ceb208ed30403c6f06ad60714381e7ffa58cc39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee016f0abe88aebf94620475ce8d8a59feb0d67e7447b4becb0e2d801a73bb44
[INFO] running `Command { std: "docker" "start" "-a" "ee016f0abe88aebf94620475ce8d8a59feb0d67e7447b4becb0e2d801a73bb44", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling futures-channel v0.3.21
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling safemem v0.3.3
[INFO] [stderr]    Compiling typeable v0.1.2
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling get_if_addrs v0.5.3
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling xmltree v0.10.3
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.1
[INFO] [stderr]    Compiling ssdp v0.7.0
[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/ssdp-0.7.0/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(ip)]
[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 `ssdp` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ee016f0abe88aebf94620475ce8d8a59feb0d67e7447b4becb0e2d801a73bb44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee016f0abe88aebf94620475ce8d8a59feb0d67e7447b4becb0e2d801a73bb44", kill_on_drop: false }`
[INFO] [stdout] ee016f0abe88aebf94620475ce8d8a59feb0d67e7447b4becb0e2d801a73bb44