[INFO] cloning repository https://github.com/gear-tech/apps
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gear-tech/apps" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgear-tech%2Fapps", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgear-tech%2Fapps'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 080ff7a4b63b81fcb4177ef3822d713b3deecfa2
[INFO] testing gear-tech/apps against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgear-tech%2Fapps" "/workspace/builds/worker-117/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-117/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gear-tech/apps 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] removed /workspace/builds/worker-117/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/gear-tech/apps
[INFO] finished tweaking git repo https://github.com/gear-tech/apps
[INFO] tweaked toml for git repo https://github.com/gear-tech/apps written to /workspace/builds/worker-117/source/Cargo.toml
[INFO] crate git repo https://github.com/gear-tech/apps 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] [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-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 8fa25e0f3a1e9c63beadc996a8150ab4e6aa6834710b9ccfc10c5bad7f0a891b
[INFO] running `Command { std: "docker" "start" "-a" "8fa25e0f3a1e9c63beadc996a8150ab4e6aa6834710b9ccfc10c5bad7f0a891b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fa25e0f3a1e9c63beadc996a8150ab4e6aa6834710b9ccfc10c5bad7f0a891b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fa25e0f3a1e9c63beadc996a8150ab4e6aa6834710b9ccfc10c5bad7f0a891b", kill_on_drop: false }`
[INFO] [stdout] 8fa25e0f3a1e9c63beadc996a8150ab4e6aa6834710b9ccfc10c5bad7f0a891b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-117/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] 66438e320cb37063d941c8341eee346682d3c3c959764ea2654099cc20cc9e42
[INFO] running `Command { std: "docker" "start" "-a" "66438e320cb37063d941c8341eee346682d3c3c959764ea2654099cc20cc9e42", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling libc v0.2.116
[INFO] [stderr]    Compiling futures-core v0.3.19
[INFO] [stderr]    Compiling byte-slice-cast v1.2.0
[INFO] [stderr]    Compiling futures-task v0.3.19
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling futures-sink v0.3.19
[INFO] [stderr]    Compiling futures-util v0.3.19
[INFO] [stderr]    Compiling dlmalloc v0.1.4 (https://github.com/gear-tech/dlmalloc-rust.git?rev=a981bb84ed1e6edcceb4db6f93450551353c31dc#a981bb84)
[INFO] [stderr]    Compiling futures-channel v0.3.19
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.8
[INFO] [stderr]    Compiling str-buf v2.0.4
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling futures-io v0.3.19
[INFO] [stderr]    Compiling bs58 v0.4.0
[INFO] [stderr]    Compiling gcore v0.1.0 (https://github.com/gear-tech/gear.git#e562ef66)
[INFO] [stderr]    Compiling sp-std v4.0.0-dev (https://github.com/paritytech/substrate?branch=polkadot-v0.9.12#d76f3999)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling fixed-hash v0.7.0
[INFO] [stderr]    Compiling uint v0.9.2
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling libc_print v0.1.16 (https://github.com/grishasobol/rust-libc-print.git#b3008048)
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling galloc v0.1.0 (https://github.com/gear-tech/gear.git#e562ef66)
[INFO] [stderr]    Compiling integer-sqrt v0.1.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling impl-trait-for-tuples v0.2.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling gstd-codegen v0.1.0 (https://github.com/gear-tech/gear.git#e562ef66)
[INFO] [stderr]    Compiling sp-debug-derive v3.0.0 (https://github.com/paritytech/substrate?branch=polkadot-v0.9.12#d76f3999)
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling parity-scale-codec-derive v2.3.1
[INFO] [stderr]    Compiling scale-info-derive v1.0.0
[INFO] [stderr]    Compiling parity-scale-codec v2.3.1
[INFO] [stderr]    Compiling scale-info v1.0.0
[INFO] [stderr]    Compiling impl-codec v0.5.1
[INFO] [stderr]    Compiling primitive-types v0.10.1
[INFO] [stderr]    Compiling sp-arithmetic v4.0.0-dev (https://github.com/paritytech/substrate?branch=polkadot-v0.9.12#d76f3999)
[INFO] [stderr]    Compiling gstd v0.1.0 (https://github.com/gear-tech/gear.git#e562ef66)
[INFO] [stderr]    Compiling fungible-token-messages v0.1.0 (/opt/rustwide/workdir/fungible-token-messages)
[INFO] [stderr]    Compiling non-fungible-token v0.1.0 (/opt/rustwide/workdir/non-fungible-token)
[INFO] [stderr]    Compiling nft-example-io v0.1.0 (/opt/rustwide/workdir/nft-example/io)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> non-fungible-token/src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(const_btree_new)]
[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 `non-fungible-token` 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" "66438e320cb37063d941c8341eee346682d3c3c959764ea2654099cc20cc9e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66438e320cb37063d941c8341eee346682d3c3c959764ea2654099cc20cc9e42", kill_on_drop: false }`
[INFO] [stdout] 66438e320cb37063d941c8341eee346682d3c3c959764ea2654099cc20cc9e42