[INFO] cloning repository https://github.com/SunDoge/smms
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SunDoge/smms" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSunDoge%2Fsmms", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSunDoge%2Fsmms'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6d0c8b968b9f3cf311e083d976a83a597dca993
[INFO] testing SunDoge/smms against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSunDoge%2Fsmms" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SunDoge/smms 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 git repo https://github.com/SunDoge/smms
[INFO] finished tweaking git repo https://github.com/SunDoge/smms
[INFO] tweaked toml for git repo https://github.com/SunDoge/smms written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/SunDoge/smms already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 470e85d1a48c7d2d679cc51d23f70c0a74b86a24bbec89a983797d66e02ecdf1
[INFO] running `Command { std: "docker" "start" "-a" "470e85d1a48c7d2d679cc51d23f70c0a74b86a24bbec89a983797d66e02ecdf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "470e85d1a48c7d2d679cc51d23f70c0a74b86a24bbec89a983797d66e02ecdf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470e85d1a48c7d2d679cc51d23f70c0a74b86a24bbec89a983797d66e02ecdf1", kill_on_drop: false }`
[INFO] [stdout] 470e85d1a48c7d2d679cc51d23f70c0a74b86a24bbec89a983797d66e02ecdf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 11c5cdec84b3c0e1e5f9d4d82639b7a59a6f477341e9bc0a6b443abc24d47cc3
[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" "11c5cdec84b3c0e1e5f9d4d82639b7a59a6f477341e9bc0a6b443abc24d47cc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures v0.1.25
[INFO] [stderr]    Compiling lazycell v1.2.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling openssl v0.10.15
[INFO] [stderr]    Compiling native-tls v0.2.2
[INFO] [stderr]    Compiling encoding_rs v0.8.10
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling openssl-sys v0.9.39
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]    Compiling base64 v0.9.3
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling bytes v0.4.10
[INFO] [stderr]    Compiling lock_api v0.1.4
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling libflate v0.1.18
[INFO] [stderr]    Compiling syn v0.15.14
[INFO] [stderr]    Compiling phf v0.7.23
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling http v0.1.13
[INFO] [stderr]    Compiling mime v0.3.12
[INFO] [stderr]    Compiling mio-uds v0.6.7
[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/futures-0.1.25/src/lib.rs:161:42
[INFO] [stdout]     |
[INFO] [stdout] 161 | #![cfg_attr(feature = "nightly", feature(pin))]
[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 `futures` 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" "11c5cdec84b3c0e1e5f9d4d82639b7a59a6f477341e9bc0a6b443abc24d47cc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11c5cdec84b3c0e1e5f9d4d82639b7a59a6f477341e9bc0a6b443abc24d47cc3", kill_on_drop: false }`
[INFO] [stdout] 11c5cdec84b3c0e1e5f9d4d82639b7a59a6f477341e9bc0a6b443abc24d47cc3