[INFO] cloning repository https://github.com/Nabeatsu/ryuki
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nabeatsu/ryuki" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNabeatsu%2Fryuki", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNabeatsu%2Fryuki'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a1ad9cb92b6802d1d85474941a310b9dd3ee9359
[INFO] testing Nabeatsu/ryuki against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNabeatsu%2Fryuki" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nabeatsu/ryuki on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Nabeatsu/ryuki
[INFO] finished tweaking git repo https://github.com/Nabeatsu/ryuki
[INFO] tweaked toml for git repo https://github.com/Nabeatsu/ryuki written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/Nabeatsu/ryuki already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.17
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.60
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.60
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.60
[INFO] [stderr]   Downloaded winreg v0.6.2
[INFO] [stderr]   Downloaded serde v1.0.105
[INFO] [stderr]   Downloaded itoa v0.4.5
[INFO] [stderr]   Downloaded rustc-serialize v0.3.24
[INFO] [stderr]   Downloaded libc v0.2.68
[INFO] [stderr]   Downloaded openssl v0.10.28
[INFO] [stderr]   Downloaded vcpkg v0.2.8
[INFO] [stderr]   Downloaded http-body v0.3.1
[INFO] [stderr]   Downloaded pin-project-internal v0.4.8
[INFO] [stderr]   Downloaded pin-project v0.4.8
[INFO] [stderr]   Downloaded hyper v0.13.4
[INFO] [stderr]   Downloaded pin-utils v0.1.0-alpha.4
[INFO] [stderr]   Downloaded futures-sink v0.3.4
[INFO] [stderr]   Downloaded futures-util v0.3.4
[INFO] [stderr]   Downloaded tokio-util v0.2.0
[INFO] [stderr]   Downloaded security-framework-sys v0.4.1
[INFO] [stderr]   Downloaded futures-task v0.3.4
[INFO] [stderr]   Downloaded security-framework v0.4.1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.6
[INFO] [stderr]   Downloaded mio v0.6.21
[INFO] [stderr]   Downloaded tokio-tls v0.3.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.12
[INFO] [stderr]   Downloaded bumpalo v3.2.1
[INFO] [stderr]   Downloaded js-sys v0.3.37
[INFO] [stderr]   Downloaded quote v1.0.3
[INFO] [stderr]   Downloaded hyper-tls v0.4.1
[INFO] [stderr]   Downloaded encoding_rs v0.8.22
[INFO] [stderr]   Downloaded time v0.1.42
[INFO] [stderr]   Downloaded remove_dir_all v0.5.2
[INFO] [stderr]   Downloaded want v0.3.0
[INFO] [stderr]   Downloaded mime v0.3.16
[INFO] [stderr]   Downloaded httparse v1.3.4
[INFO] [stderr]   Downloaded try-lock v0.2.2
[INFO] [stderr]   Downloaded unicode-xid v0.2.0
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.10
[INFO] [stderr]   Downloaded futures-channel v0.3.4
[INFO] [stderr]   Downloaded http v0.2.1
[INFO] [stderr]   Downloaded h2 v0.2.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.9
[INFO] [stderr]   Downloaded futures-core v0.3.4
[INFO] [stderr]   Downloaded pin-project-lite v0.1.4
[INFO] [stderr]   Downloaded url v2.1.1
[INFO] [stderr]   Downloaded idna v0.2.0
[INFO] [stderr]   Downloaded web-sys v0.3.37
[INFO] [stderr]   Downloaded tower-service v0.3.0
[INFO] [stderr]   Downloaded core-foundation-sys v0.7.0
[INFO] [stderr]   Downloaded matches v0.1.8
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.60
[INFO] [stderr]   Downloaded ryu v1.0.3
[INFO] [stderr]   Downloaded net2 v0.2.33
[INFO] [stderr]   Downloaded unicase v2.6.0
[INFO] [stderr]   Downloaded core-foundation v0.7.0
[INFO] [stderr]   Downloaded mime_guess v2.0.3
[INFO] [stderr]   Downloaded serde_urlencoded v0.6.1
[INFO] [stderr]   Downloaded openssl-probe v0.1.2
[INFO] [stderr]   Downloaded fnv v1.0.6
[INFO] [stderr]   Downloaded native-tls v0.2.4
[INFO] [stderr]   Downloaded tokio v0.2.13
[INFO] [stderr]   Downloaded reqwest v0.10.4
[INFO] [stderr]   Downloaded smallvec v1.2.0
[INFO] [stderr]   Downloaded indexmap v1.3.2
[INFO] [stderr]   Downloaded serde_json v1.0.50
[INFO] [stderr]   Downloaded schannel v0.1.18
[INFO] [stderr]   Downloaded version_check v0.9.1
[INFO] [stderr]   Downloaded dtoa v0.4.5
[INFO] [stderr]   Downloaded cc v1.0.50
[INFO] [stderr]   Downloaded openssl-sys v0.9.54
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 698abd5023071528fb967d64cbed56fe30d1b048d889ceafeeeec078b2ab21f5
[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" "698abd5023071528fb967d64cbed56fe30d1b048d889ceafeeeec078b2ab21f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "698abd5023071528fb967d64cbed56fe30d1b048d889ceafeeeec078b2ab21f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "698abd5023071528fb967d64cbed56fe30d1b048d889ceafeeeec078b2ab21f5", kill_on_drop: false }`
[INFO] [stdout] 698abd5023071528fb967d64cbed56fe30d1b048d889ceafeeeec078b2ab21f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "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] 65476ae4bd8eb1a81a97dd4609855c978b5f8e5381ec1d5ec523cb2e29e266d9
[INFO] running `Command { std: "docker" "start" "-a" "65476ae4bd8eb1a81a97dd4609855c978b5f8e5381ec1d5ec523cb2e29e266d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling pin-project-lite v0.1.4
[INFO] [stderr]    Compiling futures-core v0.3.4
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling openssl v0.10.28
[INFO] [stderr]    Compiling futures-task v0.3.4
[INFO] [stderr]    Compiling smallvec v1.2.0
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling futures-sink v0.3.4
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling encoding_rs v0.8.22
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling dtoa v0.4.5
[INFO] [stderr]    Compiling openssl-sys v0.9.54
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling url v2.1.1
[INFO] [stderr]    Compiling tokio v0.2.13
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.50
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling hyper v0.13.4
[INFO] [stderr]    Compiling hyper-tls v0.4.1
[INFO] [stderr]    Compiling reqwest v0.10.4
[INFO] [stderr]    Compiling ryuki v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rustc_serialize`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rustc_serialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read_to_string` found for opaque type `impl Future` in the current scope
[INFO] [stdout]   --> src/lib.rs:27:18
[INFO] [stdout]    |
[INFO] [stdout] 27 |         response.read_to_string(&mut buf).expect("Failed to read response");
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^ method not found in `impl Future`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/lib.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ryuki`
[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" "65476ae4bd8eb1a81a97dd4609855c978b5f8e5381ec1d5ec523cb2e29e266d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65476ae4bd8eb1a81a97dd4609855c978b5f8e5381ec1d5ec523cb2e29e266d9", kill_on_drop: false }`
[INFO] [stdout] 65476ae4bd8eb1a81a97dd4609855c978b5f8e5381ec1d5ec523cb2e29e266d9