[INFO] fetching crate dusk-abi 0.11.0...
[INFO] checking dusk-abi-0.11.0 against 1.95.0 for pr-155915
[INFO] extracting crate dusk-abi 0.11.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate dusk-abi 0.11.0
[INFO] finished tweaking crates.io crate dusk-abi 0.11.0
[INFO] tweaked toml for crates.io crate dusk-abi 0.11.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate dusk-abi 0.11.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "generate-lockfile" "--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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 33 packages to latest compatible versions
[INFO] [stderr]       Adding arbitrary v0.3.3 (available: v1.4.2)
[INFO] [stderr]       Adding cfg-if v0.1.10 (available: v1.0.4)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "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 canonical_derive v0.7.0
[INFO] [stderr]   Downloaded canonical v0.7.1
[INFO] [stderr]   Downloaded arbitrary v0.3.3
[INFO] [stderr]   Downloaded dusk-varint v0.1.0
[INFO] [stderr]   Downloaded blake2b_simd v0.3.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 422737fc0ce4e6053f99481856b92d7c1dc59d619b9601061d798be716f352d7
[INFO] running `Command { std: "docker" "start" "-a" "422737fc0ce4e6053f99481856b92d7c1dc59d619b9601061d798be716f352d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "422737fc0ce4e6053f99481856b92d7c1dc59d619b9601061d798be716f352d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "422737fc0ce4e6053f99481856b92d7c1dc59d619b9601061d798be716f352d7", kill_on_drop: false }`
[INFO] [stdout] 422737fc0ce4e6053f99481856b92d7c1dc59d619b9601061d798be716f352d7
[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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c7be81dc02cf571af0833225b05e30ecdf4a651a82550cfe8bc26a5413479e9
[INFO] running `Command { std: "docker" "start" "-a" "6c7be81dc02cf571af0833225b05e30ecdf4a651a82550cfe8bc26a5413479e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling arrayref v0.3.9
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arbitrary v1.4.2
[INFO] [stderr]    Compiling wee_alloc v0.4.5
[INFO] [stderr]    Compiling array-init v2.1.0
[INFO] [stderr]    Compiling dusk-varint v0.1.0
[INFO] [stderr]     Checking memory_units v0.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking arbitrary v0.3.3
[INFO] [stderr]     Checking blake2b_simd v0.3.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling parking_lot v0.12.5
[INFO] [stderr]    Compiling canonical v0.7.1
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/canonical-0.7.1/src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(never_type)]
[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/index.crates.io-1949cf8c6b5b557f/canonical-0.7.1/src/lib.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #![feature(never_type)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `canonical` (lib) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `canonical` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "6c7be81dc02cf571af0833225b05e30ecdf4a651a82550cfe8bc26a5413479e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c7be81dc02cf571af0833225b05e30ecdf4a651a82550cfe8bc26a5413479e9", kill_on_drop: false }`
[INFO] [stdout] 6c7be81dc02cf571af0833225b05e30ecdf4a651a82550cfe8bc26a5413479e9