[INFO] cloning repository https://github.com/bennufactory/golem-core-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bennufactory/golem-core-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbennufactory%2Fgolem-core-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbennufactory%2Fgolem-core-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4f18176ed78a36f689d5d705eec7841e720402f1
[INFO] checking bennufactory/golem-core-rs against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbennufactory%2Fgolem-core-rs" "/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/bennufactory/golem-core-rs on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bennufactory/golem-core-rs
[INFO] finished tweaking git repo https://github.com/bennufactory/golem-core-rs
[INFO] tweaked toml for git repo https://github.com/bennufactory/golem-core-rs written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/bennufactory/golem-core-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e51767a012ce86db7fc025491a795ee126dd8211823c82aef73d575b4be56070
[INFO] running `Command { std: "docker" "start" "-a" "e51767a012ce86db7fc025491a795ee126dd8211823c82aef73d575b4be56070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e51767a012ce86db7fc025491a795ee126dd8211823c82aef73d575b4be56070", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e51767a012ce86db7fc025491a795ee126dd8211823c82aef73d575b4be56070", kill_on_drop: false }`
[INFO] [stdout] e51767a012ce86db7fc025491a795ee126dd8211823c82aef73d575b4be56070
[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=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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 328b52b57b4937dde8e08faa9e63dc78529d6884c1d4cb30fc9f895988cea61e
[INFO] running `Command { std: "docker" "start" "-a" "328b52b57b4937dde8e08faa9e63dc78529d6884c1d4cb30fc9f895988cea61e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.17
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rustc-demangle v0.1.8
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling pulldown-cmark v0.1.2
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling itoa v0.4.1
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling bytecount v0.3.1
[INFO] [stderr]     Checking stable_deref_trait v1.1.0
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling cpython v0.1.0
[INFO] [stderr]     Checking spin v0.4.9
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking log v0.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/spin-0.4.9/src/lib.rs:6:43
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![cfg_attr(feature = "const_fn", feature(const_fn))]
[INFO] [stdout]   |                                           ^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: split into finer-grained feature gates
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling actix_derive v0.2.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking tokio-timer v0.2.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spin` 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" "328b52b57b4937dde8e08faa9e63dc78529d6884c1d4cb30fc9f895988cea61e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328b52b57b4937dde8e08faa9e63dc78529d6884c1d4cb30fc9f895988cea61e", kill_on_drop: false }`
[INFO] [stdout] 328b52b57b4937dde8e08faa9e63dc78529d6884c1d4cb30fc9f895988cea61e