[INFO] fetching crate xain-fl 0.8.0...
[INFO] checking xain-fl-0.8.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate xain-fl 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate xain-fl 0.8.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking crates.io crate xain-fl 0.8.0
[INFO] finished tweaking crates.io crate xain-fl 0.8.0
[INFO] tweaked toml for crates.io crate xain-fl 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate xain-fl 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded indoc v0.3.5
[INFO] [stderr]   Downloaded tracing v0.1.13
[INFO] [stderr]   Downloaded tracing-attributes v0.1.7
[INFO] [stderr]   Downloaded warp v0.2.2
[INFO] [stderr]   Downloaded tracing-subscriber v0.2.3
[INFO] [stderr]   Downloaded unindent v0.1.5
[INFO] [stderr]   Downloaded tracing-futures v0.2.3
[INFO] [stderr]   Downloaded arc-swap v0.4.5
[INFO] [stderr]   Downloaded tokio-serde v0.6.1
[INFO] [stderr]   Downloaded tarpc-plugins v0.7.0
[INFO] [stderr]   Downloaded fragile v0.3.0
[INFO] [stderr]   Downloaded mockall v0.6.0
[INFO] [stderr]   Downloaded influxdb_derive v0.1.0
[INFO] [stderr]   Downloaded mockall_derive v0.6.0
[INFO] [stderr]   Downloaded influxdb v0.1.0
[INFO] [stderr]   Downloaded tarpc v0.20.0
[INFO] [stderr]   Downloaded anyhow v1.0.27
[INFO] [stderr]   Downloaded opentelemetry-jaeger v0.1.0
[INFO] [stderr]   Downloaded pyo3cls v0.9.1
[INFO] [stderr]   Downloaded opentelemetry v0.2.0
[INFO] [stderr]   Downloaded pyo3-derive-backend v0.9.1
[INFO] [stderr]   Downloaded thiserror-impl v1.0.13
[INFO] [stderr]   Downloaded sharded-slab v0.0.8
[INFO] [stderr]   Downloaded inventory-impl v0.1.5
[INFO] [stderr]   Downloaded indoc-impl v0.3.5
[INFO] [stderr]   Downloaded integer-encoding v1.1.5
[INFO] [stderr]   Downloaded paste v0.1.8
[INFO] [stderr]   Downloaded tracing-opentelemetry v0.2.0
[INFO] [stderr]   Downloaded tracing-core v0.1.10
[INFO] [stderr]   Downloaded thrift v0.13.0
[INFO] [stderr]   Downloaded derivative v2.0.2
[INFO] [stderr]   Downloaded inventory v0.1.5
[INFO] [stderr]   Downloaded raii-counter v0.2.1
[INFO] [stderr]   Downloaded thiserror v1.0.13
[INFO] [stderr]   Downloaded pyo3 v0.9.1
[INFO] [stderr]   Downloaded paste-impl v0.1.8
[INFO] [stderr]   Downloaded stubborn-io v0.1.8
[INFO] [stderr]   Downloaded protobuf v2.11.0
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7d73b3a4b216c236a0d7ea6b002d14464ba1f01411d276892b55aaba2dcb40e4
[INFO] running `Command { std: "docker" "start" "-a" "7d73b3a4b216c236a0d7ea6b002d14464ba1f01411d276892b55aaba2dcb40e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d73b3a4b216c236a0d7ea6b002d14464ba1f01411d276892b55aaba2dcb40e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d73b3a4b216c236a0d7ea6b002d14464ba1f01411d276892b55aaba2dcb40e4", kill_on_drop: false }`
[INFO] [stdout] 7d73b3a4b216c236a0d7ea6b002d14464ba1f01411d276892b55aaba2dcb40e4
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff25e7f0007f5f1275e3a05a081560f086ebad2a6d063b53c73715f99ae08763
[INFO] running `Command { std: "docker" "start" "-a" "ff25e7f0007f5f1275e3a05a081560f086ebad2a6d063b53c73715f99ae08763", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling serde v1.0.105
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling ryu v1.0.3
[INFO] [stderr]    Compiling proc-macro-hack v0.5.14
[INFO] [stderr]     Checking futures-core v0.3.4
[INFO] [stderr]     Checking futures-sink v0.3.4
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking smallvec v1.2.0
[INFO] [stderr]     Checking pin-utils v0.1.0-alpha.4
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]     Checking arc-swap v0.4.5
[INFO] [stderr]     Checking futures-io v0.3.4
[INFO] [stderr]     Checking futures-task v0.3.4
[INFO] [stderr]     Checking pin-project-lite v0.1.4
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling regex-syntax v0.6.17
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]    Compiling unindent v0.1.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking static_assertions v0.3.4
[INFO] [stderr]    Compiling anyhow v1.0.27
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking raii-counter v0.2.1
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking normalize-line-endings v0.3.0
[INFO] [stderr]     Checking downcast v0.10.0
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]     Checking tracing-core v0.1.10
[INFO] [stderr]     Checking sharded-slab v0.0.8
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking lock_api v0.3.3
[INFO] [stderr]     Checking futures-channel v0.3.4
[INFO] [stderr]     Checking unicode-normalization v0.1.12
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]     Checking regex v1.3.6
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking float-cmp v0.6.0
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.3.3/src/lib.rs:89:42
[INFO] [stdout]    |
[INFO] [stdout] 89 | #![cfg_attr(feature = "nightly", 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] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lock_api` due to 2 previous errors
[INFO] [stdout] For more information about this error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ff25e7f0007f5f1275e3a05a081560f086ebad2a6d063b53c73715f99ae08763", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff25e7f0007f5f1275e3a05a081560f086ebad2a6d063b53c73715f99ae08763", kill_on_drop: false }`
[INFO] [stdout] ff25e7f0007f5f1275e3a05a081560f086ebad2a6d063b53c73715f99ae08763