[INFO] cloning repository https://github.com/henryphamit/Rentalproperty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/henryphamit/Rentalproperty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryphamit%2FRentalproperty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryphamit%2FRentalproperty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c393a4245903367795d18c69176878ca71443eb
[INFO] checking henryphamit/Rentalproperty against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhenryphamit%2FRentalproperty" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/henryphamit/Rentalproperty on toolchain 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/henryphamit/Rentalproperty
[INFO] finished tweaking git repo https://github.com/henryphamit/Rentalproperty
[INFO] tweaked toml for git repo https://github.com/henryphamit/Rentalproperty written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/henryphamit/Rentalproperty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 675d6c225efafe5f3e758792aac4bfa2b5d6a3b650e67902fc7e7d3cf82d628e
[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" "675d6c225efafe5f3e758792aac4bfa2b5d6a3b650e67902fc7e7d3cf82d628e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675d6c225efafe5f3e758792aac4bfa2b5d6a3b650e67902fc7e7d3cf82d628e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675d6c225efafe5f3e758792aac4bfa2b5d6a3b650e67902fc7e7d3cf82d628e", kill_on_drop: false }`
[INFO] [stdout] 675d6c225efafe5f3e758792aac4bfa2b5d6a3b650e67902fc7e7d3cf82d628e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b6b7f2802a019ffaf1b691f20cf344a2d7ea4b558bffff4e5364ff8bb39327d
[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" "4b6b7f2802a019ffaf1b691f20cf344a2d7ea4b558bffff4e5364ff8bb39327d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling wee_alloc v0.4.4
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling byteorder v1.3.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling memory_units v0.4.0
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking fixed-hash v0.3.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]    Compiling libc v0.2.55
[INFO] [stderr]    Compiling crunchy v0.1.6
[INFO] [stderr]     Checking ink_utils v0.1.0 (https://github.com/paritytech/ink.git?rev=1748b51ad8364d71bbd18b67db587bb694fb1aef#1748b51a)
[INFO] [stderr]    Compiling tiny-keccak v1.4.2
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking uint v0.7.1
[INFO] [stderr]     Checking hashbrown v0.1.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling toml v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling parity-codec-derive v3.3.0
[INFO] [stderr]     Checking parity-codec v3.5.1
[INFO] [stderr]     Checking impl-codec v0.2.0
[INFO] [stderr]     Checking ink_core v0.1.0 (https://github.com/paritytech/ink.git?rev=1748b51ad8364d71bbd18b67db587bb694fb1aef#1748b51a)
[INFO] [stderr]     Checking primitive-types v0.2.4
[INFO] [stderr]     Checking contract-sdk v0.1.1 (https://github.com/cennznet/contract-sdk.git#cc47fbfb)
[INFO] [stderr]     Checking ink_model v0.1.0 (https://github.com/paritytech/ink.git?rev=1748b51ad8364d71bbd18b67db587bb694fb1aef#1748b51a)
[INFO] [stdout] error[E0635]: unknown feature `const_str_as_bytes`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/ink-1add513eda8f5a89/1748b51/model/src/lib.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(const_fn, const_str_as_bytes, core_intrinsics)]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ink_model`.
[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] [stdout] error[E0635]: unknown feature `const_str_as_bytes`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/ink-1add513eda8f5a89/1748b51/model/src/lib.rs:18:22
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(const_fn, const_str_as_bytes, core_intrinsics)]
[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 E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4b6b7f2802a019ffaf1b691f20cf344a2d7ea4b558bffff4e5364ff8bb39327d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6b7f2802a019ffaf1b691f20cf344a2d7ea4b558bffff4e5364ff8bb39327d", kill_on_drop: false }`
[INFO] [stdout] 4b6b7f2802a019ffaf1b691f20cf344a2d7ea4b558bffff4e5364ff8bb39327d