[INFO] fetching crate cxc 0.3.1...
[INFO] testing cxc-0.3.1 against 1.75.0 for beta-1.76-1
[INFO] extracting crate cxc 0.3.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cxc 0.3.1 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cxc 0.3.1
[INFO] finished tweaking crates.io crate cxc 0.3.1
[INFO] tweaked toml for crates.io crate cxc 0.3.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cxc 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded region v2.2.0
[INFO] [stderr]   Downloaded inkwell_internals v0.8.0
[INFO] [stderr]   Downloaded target-lexicon v0.12.7
[INFO] [stderr]   Downloaded cranelift-frontend v0.101.3
[INFO] [stderr]   Downloaded regalloc2 v0.9.3
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.101.3
[INFO] [stderr]   Downloaded inkwell v0.2.0
[INFO] [stderr]   Downloaded cranelift-native v0.101.3
[INFO] [stderr]   Downloaded wasmtime-jit-icache-coherence v14.0.3
[INFO] [stderr]   Downloaded cranelift-codegen-shared v0.101.3
[INFO] [stderr]   Downloaded cxc_derive v0.2.0
[INFO] [stderr]   Downloaded passable v1.0.0
[INFO] [stderr]   Downloaded cranelift v0.101.3
[INFO] [stderr]   Downloaded cranelift-module v0.101.3
[INFO] [stderr]   Downloaded cranelift-control v0.101.3
[INFO] [stderr]   Downloaded llvm-sys v150.0.5
[INFO] [stderr]   Downloaded cranelift-bforest v0.101.3
[INFO] [stderr]   Downloaded cranelift-jit v0.101.3
[INFO] [stderr]   Downloaded cranelift-entity v0.101.3
[INFO] [stderr]   Downloaded cranelift-isle v0.101.3
[INFO] [stderr]   Downloaded cranelift-codegen v0.101.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af1d957b8a9b2dfb3cd4292a279e8e19b0720361806cc863ef9dff0e0a9e9161
[INFO] running `Command { std: "docker" "start" "-a" "af1d957b8a9b2dfb3cd4292a279e8e19b0720361806cc863ef9dff0e0a9e9161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af1d957b8a9b2dfb3cd4292a279e8e19b0720361806cc863ef9dff0e0a9e9161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af1d957b8a9b2dfb3cd4292a279e8e19b0720361806cc863ef9dff0e0a9e9161", kill_on_drop: false }`
[INFO] [stdout] af1d957b8a9b2dfb3cd4292a279e8e19b0720361806cc863ef9dff0e0a9e9161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaed66e52fd35276680598511326791f08289f995eaf5c723773376fa0982fb5
[INFO] running `Command { std: "docker" "start" "-a" "eaed66e52fd35276680598511326791f08289f995eaf5c723773376fa0982fb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]    Compiling cranelift-isle v0.101.3
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.101.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling target-lexicon v0.12.7
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.14.2
[INFO] [stderr]    Compiling cranelift-entity v0.101.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.60
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling slice-group-by v0.3.1
[INFO] [stderr]    Compiling arbitrary v1.3.2
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.101.3
[INFO] [stderr]    Compiling bumpalo v3.12.2
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cranelift-bforest v0.101.3
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling region v2.2.0
[INFO] [stderr]    Compiling wasmtime-jit-icache-coherence v14.0.3
[INFO] [stderr]    Compiling hashbrown v0.13.2
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling region v3.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling passable v1.0.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling cranelift-control v0.101.3
[INFO] [stderr]    Compiling regalloc2 v0.9.3
[INFO] [stderr]    Compiling gimli v0.28.0
[INFO] [stderr]    Compiling cranelift-codegen v0.101.3
[INFO] [stderr]    Compiling logos-derive v0.12.1
[INFO] [stderr]    Compiling cxc_derive v0.2.0
[INFO] [stderr]    Compiling logos v0.12.1
[INFO] [stderr]    Compiling cranelift-frontend v0.101.3
[INFO] [stderr]    Compiling cranelift-native v0.101.3
[INFO] [stderr]    Compiling cranelift-module v0.101.3
[INFO] [stderr]    Compiling cranelift-jit v0.101.3
[INFO] [stderr]    Compiling cranelift v0.101.3
[INFO] [stderr]    Compiling cxc v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(type_name_of_val)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(int_roundings)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(if_let_guard)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(unboxed_closures)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(fn_traits)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(tuple_trait)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 | #![feature(exclusive_range_pattern)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(concat_idents)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(type_name_of_val)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(int_roundings)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(fn_traits)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | #![feature(tuple_trait)]
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | #![feature(concat_idents)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 14 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 `cxc` (lib) due to 15 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "eaed66e52fd35276680598511326791f08289f995eaf5c723773376fa0982fb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaed66e52fd35276680598511326791f08289f995eaf5c723773376fa0982fb5", kill_on_drop: false }`
[INFO] [stdout] eaed66e52fd35276680598511326791f08289f995eaf5c723773376fa0982fb5
