[INFO] cloning repository https://github.com/Windfisch/rocket-longpolling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Windfisch/rocket-longpolling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Frocket-longpolling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Frocket-longpolling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a674d5cec10fd76cb40023295e28b02007a550b8
[INFO] testing Windfisch/rocket-longpolling against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWindfisch%2Frocket-longpolling" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Windfisch/rocket-longpolling 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/Windfisch/rocket-longpolling
[INFO] finished tweaking git repo https://github.com/Windfisch/rocket-longpolling
[INFO] tweaked toml for git repo https://github.com/Windfisch/rocket-longpolling written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Windfisch/rocket-longpolling 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]     Updating git repository `https://github.com/SergioBenitez/proc-macro2-diagnostics.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-mutex v1.2.0
[INFO] [stderr]   Downloaded polling v0.1.8
[INFO] [stderr]   Downloaded async-notify v0.2.0
[INFO] [stderr]   Downloaded time v0.2.17
[INFO] [stderr]   Downloaded ubyte v0.9.1
[INFO] [stderr]   Downloaded dashmap v4.0.0-rc6
[INFO] [stderr]   Downloaded inlinable_string v0.1.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "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] 3381fea38de3f1f45ad6c344566177fa0fe6f69c433b2b2287339724cdc0febb
[INFO] running `Command { std: "docker" "start" "-a" "3381fea38de3f1f45ad6c344566177fa0fe6f69c433b2b2287339724cdc0febb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3381fea38de3f1f45ad6c344566177fa0fe6f69c433b2b2287339724cdc0febb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3381fea38de3f1f45ad6c344566177fa0fe6f69c433b2b2287339724cdc0febb", kill_on_drop: false }`
[INFO] [stdout] 3381fea38de3f1f45ad6c344566177fa0fe6f69c433b2b2287339724cdc0febb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df76282305a1dc8e10005902cd94f7e2410a147d5b8193558617a5e34ef26c7e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df76282305a1dc8e10005902cd94f7e2410a147d5b8193558617a5e34ef26c7e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling subtle v2.2.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling fastrand v1.3.5
[INFO] [stderr]    Compiling inlinable_string v0.1.11
[INFO] [stderr]    Compiling event-listener v2.4.0
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]    Compiling vec-arena v0.5.2
[INFO] [stderr]    Compiling async-task v3.0.0
[INFO] [stderr]    Compiling state v0.4.1
[INFO] [stderr]    Compiling parking v1.0.6
[INFO] [stderr]    Compiling ubyte v0.9.1
[INFO] [stderr]    Compiling atomic v0.4.6
[INFO] [stderr]    Compiling binascii v0.1.4
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling proc-macro2-diagnostics v0.1.0 (https://github.com/SergioBenitez/proc-macro2-diagnostics.git?rev=13fbb43#13fbb43d)
[INFO] [stderr]    Compiling time v0.2.17
[INFO] [stderr]    Compiling cookie v0.15.0-dev (https://github.com/SergioBenitez/cookie-rs.git?rev=3795f2e#3795f2e6)
[INFO] [stderr]    Compiling rocket_http v0.5.0-dev (https://github.com/SergioBenitez/Rocket?branch=master#dc2c6ecd)
[INFO] [stderr]    Compiling indexmap v1.5.2
[INFO] [stderr]    Compiling dashmap v4.0.0-rc6
[INFO] [stderr]    Compiling rocket v0.5.0-dev (https://github.com/SergioBenitez/Rocket?branch=master#dc2c6ecd)
[INFO] [stderr]    Compiling async-mutex v1.2.0
[INFO] [stderr]    Compiling async-channel v1.4.2
[INFO] [stderr]    Compiling multitask v0.2.0
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling futures-lite v0.1.11
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling tracing v0.1.19
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling polling v0.1.8
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling blocking v0.5.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling async-io v0.1.11
[INFO] [stderr]    Compiling block-cipher v0.7.1
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling polyval v0.4.0
[INFO] [stderr]    Compiling aes-soft v0.4.0
[INFO] [stderr]    Compiling hmac v0.8.1
[INFO] [stderr]    Compiling sha2 v0.9.1
[INFO] [stderr]    Compiling hkdf v0.9.0
[INFO] [stderr]    Compiling ghash v0.3.0
[INFO] [stderr]    Compiling async-executor v0.1.2
[INFO] [stderr]    Compiling aes v0.4.0
[INFO] [stderr]    Compiling aes-gcm v0.6.0
[INFO] [stderr]    Compiling async-std v1.6.3
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling devise_core v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=1e42a2691#1e42a269)
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling pear_codegen v0.2.0-dev (https://github.com/SergioBenitez/Pear.git?rev=4b68055#4b680556)
[INFO] [stderr]    Compiling ref-cast-impl v1.0.2
[INFO] [stderr]    Compiling devise_codegen v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=1e42a2691#1e42a269)
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling ref-cast v1.0.2
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling pear v0.2.0-dev (https://github.com/SergioBenitez/Pear.git?rev=4b68055#4b680556)
[INFO] [stderr]    Compiling tokio v0.2.22
[INFO] [stderr]    Compiling devise v0.3.0 (https://github.com/SergioBenitez/Devise.git?rev=1e42a2691#1e42a269)
[INFO] [stderr]    Compiling pin-project v0.4.23
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling h2 v0.2.6
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling async-notify v0.2.0
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling hyper v0.13.7
[INFO] [stderr]    Compiling rocket_codegen v0.5.0-dev (https://github.com/SergioBenitez/Rocket?branch=master#dc2c6ecd)
[INFO] [stderr]    Compiling rocket-longpolling v1.0.0 (/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(proc_macro_hygiene)]
[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 `rocket-longpolling` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "df76282305a1dc8e10005902cd94f7e2410a147d5b8193558617a5e34ef26c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df76282305a1dc8e10005902cd94f7e2410a147d5b8193558617a5e34ef26c7e", kill_on_drop: false }`
[INFO] [stdout] df76282305a1dc8e10005902cd94f7e2410a147d5b8193558617a5e34ef26c7e