[INFO] fetching crate frepl 0.7.2...
[INFO] checking frepl-0.7.2 against 1.55.0 for beta-1.56-3
[INFO] extracting crate frepl 0.7.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate frepl 0.7.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate frepl 0.7.2
[INFO] finished tweaking crates.io crate frepl 0.7.2
[INFO] tweaked toml for crates.io crate frepl 0.7.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate frepl 0.7.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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 wasmer-clif-backend-fl v0.17.0
[INFO] [stderr]   Downloaded safe-transmute v0.11.1
[INFO] [stderr]   Downloaded wasmer-runtime-core v0.17.1
[INFO] [stderr]   Downloaded fluence-it-types v0.3.0
[INFO] [stderr]   Downloaded fce-utils v0.2.0
[INFO] [stderr]   Downloaded fce-wit-generator v0.4.0
[INFO] [stderr]   Downloaded fce-wit-interfaces v0.3.0
[INFO] [stderr]   Downloaded walrus-macro v0.18.0
[INFO] [stderr]   Downloaded walrus v0.18.0
[INFO] [stderr]   Downloaded fce v0.5.0
[INFO] [stderr]   Downloaded check-latest v1.0.0
[INFO] [stderr]   Downloaded fce-module-info-parser v0.1.0
[INFO] [stderr]   Downloaded wasmer-interface-types-fl v0.20.1
[INFO] [stderr]   Downloaded wast v8.0.0
[INFO] [stderr]   Downloaded fce-timestamp-macro v0.6.1
[INFO] [stderr]   Downloaded fluence-faas v0.7.0
[INFO] [stderr]   Downloaded fce-wit-parser v0.5.0
[INFO] [stderr]   Downloaded wasmer-win-exception-handler v0.17.1
[INFO] [stderr]   Downloaded wasmer-wasi-fl v0.17.1
[INFO] [stderr]   Downloaded fluence-sdk-macro v0.6.1
[INFO] [stderr]   Downloaded fluence-sdk-main v0.6.1
[INFO] [stderr]   Downloaded skim v0.7.0
[INFO] [stderr]   Downloaded wasmer-runtime-fl v0.17.0
[INFO] [stderr]   Downloaded tuikit v0.2.9
[INFO] [stderr]   Downloaded rustyline v6.3.0
[INFO] [stderr]   Downloaded cmd_lib v0.7.8
[INFO] [stderr]   Downloaded fluence v0.6.2
[INFO] [stderr]   Downloaded rustop v1.1.1
[INFO] [stderr]   Downloaded typetag-impl v0.1.7
[INFO] [stderr]   Downloaded typetag v0.1.7
[INFO] [stderr]   Downloaded dirs-next v1.0.2
[INFO] [stderr]   Downloaded fluence-sdk-wit v0.6.1
[INFO] [stderr]   Downloaded rustyline-derive v0.3.1
[INFO] [stderr]   Downloaded it-lilo v0.1.0
[INFO] [stderr]   Downloaded fluence-app-service v0.7.0
[INFO] [stderr]   Downloaded wasmer-runtime-core-fl v0.17.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91116b63565a3114bd57f6d2f96000de2f95607f93e8ec019a279632ddc156c4
[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" "91116b63565a3114bd57f6d2f96000de2f95607f93e8ec019a279632ddc156c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91116b63565a3114bd57f6d2f96000de2f95607f93e8ec019a279632ddc156c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91116b63565a3114bd57f6d2f96000de2f95607f93e8ec019a279632ddc156c4", kill_on_drop: false }`
[INFO] [stdout] 91116b63565a3114bd57f6d2f96000de2f95607f93e8ec019a279632ddc156c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff2c5ff6e3450fbd49d8920997dfdf8c00d64300b8af220fd8a444e5689e10b6
[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" "ff2c5ff6e3450fbd49d8920997dfdf8c00d64300b8af220fd8a444e5689e10b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.59.0
[INFO] [stderr]    Compiling cranelift-entity v0.59.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking wasmparser v0.51.4
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking it-to-bytes v0.1.0
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking id-arena v2.2.1
[INFO] [stderr]     Checking safe-transmute v0.11.1
[INFO] [stderr]     Checking wasmparser v0.59.0
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking fce-utils v0.2.0
[INFO] [stderr]     Checking boolinator v2.4.0
[INFO] [stderr]     Checking utf8parse v0.1.1
[INFO] [stderr]     Checking cmd_lib v0.7.8
[INFO] [stderr]     Checking rustop v1.1.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.3
[INFO] [stderr]    Compiling memoffset v0.6.3
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling openssl-sys v0.9.62
[INFO] [stderr]     Checking wast v8.0.0
[INFO] [stderr]     Checking cranelift-bforest v0.59.0
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.59.0
[INFO] [stderr]     Checking proc-macro2 v1.0.26
[INFO] [stderr]     Checking vte v0.3.3
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]     Checking fuzzy-matcher v0.3.7
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking pwasm-utils v0.12.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking lexical-core v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling raw-cpuid v7.0.4
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling openssl v0.10.34
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking nom v5.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling wasmer-runtime-core-fl v0.17.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking page_size v0.4.2
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking nix v0.18.0
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking dirs-next v1.0.2
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]     Checking tuikit v0.2.9
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]    Compiling cranelift-codegen v0.59.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling walrus-macro v0.18.0
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling inventory-impl v0.1.10
[INFO] [stderr]    Compiling ghost v0.1.2
[INFO] [stderr]    Compiling typetag-impl v0.1.7
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling rustyline-derive v0.3.1
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking inventory v0.1.10
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking walrus v0.18.0
[INFO] [stderr]     Checking serde-bench v0.0.7
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking fluence-it-types v0.3.0
[INFO] [stderr]     Checking multimap v0.8.3
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking erased-serde v0.3.13
[INFO] [stderr]     Checking generational-arena v0.2.8
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking it-lilo v0.1.0
[INFO] [stderr]     Checking gimli v0.20.0
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking typetag v0.1.7
[INFO] [stderr]     Checking wasmer-interface-types-fl v0.20.1
[INFO] [stderr]     Checking fluence-sdk-wit v0.6.1
[INFO] [stderr]     Checking cargo_toml v0.8.1
[INFO] [stderr]     Checking timer v0.2.0
[INFO] [stderr]     Checking skim v0.7.0
[INFO] [stderr]    Compiling fce-timestamp-macro v0.6.1
[INFO] [stderr]     Checking rustyline v6.3.0
[INFO] [stderr]     Checking fce-wit-interfaces v0.3.0
[INFO] [stderr]    Compiling fluence-sdk-macro v0.6.1
[INFO] [stderr]     Checking hyper v0.14.7
[INFO] [stderr]     Checking fluence-sdk-main v0.6.1
[INFO] [stderr]     Checking fce-wit-parser v0.5.0
[INFO] [stderr]     Checking wasmer-wasi-fl v0.17.1
[INFO] [stderr]     Checking fce-module-info-parser v0.1.0
[INFO] [stderr]     Checking fluence v0.6.2
[INFO] [stderr]     Checking fce-wit-generator v0.4.0
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.3
[INFO] [stderr]     Checking check-latest v1.0.0
[INFO] [stderr]     Checking wasmer-clif-fork-frontend v0.59.0
[INFO] [stderr]     Checking cranelift-native v0.59.0
[INFO] [stderr]     Checking wasmer-clif-fork-wasm v0.59.0
[INFO] [stderr]     Checking wasmer-clif-backend-fl v0.17.0
[INFO] [stderr]     Checking wasmer-runtime-fl v0.17.0
[INFO] [stderr]     Checking fce v0.5.0
[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/fce-0.5.0/src/lib.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | #![feature(get_mut_unchecked)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/fce-0.5.0/src/lib.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | #![feature(new_uninit)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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/fce-0.5.0/src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![feature(stmt_expr_attributes)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fce` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "ff2c5ff6e3450fbd49d8920997dfdf8c00d64300b8af220fd8a444e5689e10b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff2c5ff6e3450fbd49d8920997dfdf8c00d64300b8af220fd8a444e5689e10b6", kill_on_drop: false }`
[INFO] [stdout] ff2c5ff6e3450fbd49d8920997dfdf8c00d64300b8af220fd8a444e5689e10b6
