[INFO] fetching crate odra-core 2.6.0...
[INFO] checking odra-core-2.6.0 against 1.95.0 for pr-155915
[INFO] extracting crate odra-core 2.6.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate odra-core 2.6.0
[INFO] finished tweaking crates.io crate odra-core 2.6.0
[INFO] tweaked toml for crates.io crate odra-core 2.6.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate odra-core 2.6.0 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] crate crates.io crate odra-core 2.6.0 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded casper-contract v5.1.1
[INFO] [stderr]   Downloaded casper-event-standard-macro v0.7.0
[INFO] [stderr]   Downloaded serde-map-to-array v1.1.1
[INFO] [stderr]   Downloaded casper-event-standard v0.7.0
[INFO] [stderr]   Downloaded blake2 v0.9.2
[INFO] [stderr]   Downloaded casper-types v6.1.0
[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] 1943cf7c83d6fe1fac4d65157a88e47fe659cb60e335c1c71e698b754225c5e7
[INFO] running `Command { std: "docker" "start" "-a" "1943cf7c83d6fe1fac4d65157a88e47fe659cb60e335c1c71e698b754225c5e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1943cf7c83d6fe1fac4d65157a88e47fe659cb60e335c1c71e698b754225c5e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1943cf7c83d6fe1fac4d65157a88e47fe659cb60e335c1c71e698b754225c5e7", kill_on_drop: false }`
[INFO] [stdout] 1943cf7c83d6fe1fac4d65157a88e47fe659cb60e335c1c71e698b754225c5e7
[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] b18aba10ef673cd91bcc72e7e5f4c62a1846b93e1deb3dfa5d7fd7b6d183da56
[INFO] running `Command { std: "docker" "start" "-a" "b18aba10ef673cd91bcc72e7e5f4c62a1846b93e1deb3dfa5d7fd7b6d183da56", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.9
[INFO] [stderr]     Checking zeroize v1.8.2
[INFO] [stderr]     Checking subtle v2.6.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]    Compiling curve25519-dalek v4.1.3
[INFO] [stderr]    Compiling crunchy v0.2.4
[INFO] [stderr]    Compiling curve25519-dalek-derive v0.1.1
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]     Checking der v0.7.10
[INFO] [stderr]     Checking ff v0.13.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking tracing-core v0.1.36
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking tracing v0.1.44
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sec1 v0.7.3
[INFO] [stderr]     Checking signature v2.2.0
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking crypto-bigint v0.5.5
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking sha2 v0.10.9
[INFO] [stderr]     Checking ed25519 v2.2.3
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling anyhow v1.0.102
[INFO] [stderr]     Checking rand_core v0.9.5
[INFO] [stderr]    Compiling mockall_derive v0.14.0
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]     Checking predicates-core v1.0.10
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking anstyle v1.0.14
[INFO] [stderr]    Compiling mockall v0.14.0
[INFO] [stderr]     Checking serde_bytes v0.11.19
[INFO] [stderr]     Checking ed25519-dalek v2.2.0
[INFO] [stderr]     Checking termtree v0.5.1
[INFO] [stderr]     Checking predicates v3.1.4
[INFO] [stderr]     Checking predicates-tree v1.0.13
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking fragile v2.1.0
[INFO] [stderr]     Checking elliptic-curve v0.13.8
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking serde-map-to-array v1.1.1
[INFO] [stderr]     Checking ecdsa v0.16.9
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]    Compiling casper-event-standard-macro v0.7.0
[INFO] [stderr]     Checking k256 v0.13.4
[INFO] [stderr]     Checking casper-types v6.1.0
[INFO] [stderr]     Checking casper-event-standard v0.7.0
[INFO] [stderr]     Checking odra-core v2.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:19
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(test, 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 `odra-core` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "b18aba10ef673cd91bcc72e7e5f4c62a1846b93e1deb3dfa5d7fd7b6d183da56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b18aba10ef673cd91bcc72e7e5f4c62a1846b93e1deb3dfa5d7fd7b6d183da56", kill_on_drop: false }`
[INFO] [stdout] b18aba10ef673cd91bcc72e7e5f4c62a1846b93e1deb3dfa5d7fd7b6d183da56
