[INFO] cloning repository https://github.com/yugonsan/halo2_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yugonsan/halo2_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyugonsan%2Fhalo2_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyugonsan%2Fhalo2_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9e57a0c73014b9f936b12dd0729bf25e94fa7d92
[INFO] checking yugonsan/halo2_practice against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyugonsan%2Fhalo2_practice" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  94% (1265/1342)
Updating files:  95% (1275/1342)
Updating files:  96% (1289/1342)
Updating files:  97% (1302/1342)
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Updating files: 100% (1342/1342)
Updating files: 100% (1342/1342), done.
[INFO] started tweaking git repo https://github.com/yugonsan/halo2_practice
[INFO] finished tweaking git repo https://github.com/yugonsan/halo2_practice
[INFO] tweaked toml for git repo https://github.com/yugonsan/halo2_practice written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/yugonsan/halo2_practice 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 git repo https://github.com/yugonsan/halo2_practice 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 git repository `https://github.com/qope/halo2-lib`
[INFO] [stderr]     Updating git repository `https://github.com/zcash/halo2.git`
[INFO] [stderr]     Updating git repository `https://github.com/qope/poseidon-circuit`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/qope/halo2.git`
[INFO] [stderr]     Updating git repository `https://github.com/privacy-scaling-explorations/halo2curves.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded derive_builder_core v0.9.0
[INFO] [stderr]   Downloaded blake2b_simd v1.0.1
[INFO] [stderr]   Downloaded derive_builder v0.9.0
[INFO] [stderr]   Downloaded pest v2.6.0
[INFO] [stderr]   Downloaded once_cell v1.17.2
[INFO] [stderr]   Downloaded yeslogic-fontconfig-sys v3.2.0
[INFO] [stderr]   Downloaded regex v1.8.3
[INFO] [stderr]   Downloaded float-ord v0.2.0
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded fdeflate v0.3.0
[INFO] [stderr]   Downloaded const-cstr v0.3.0
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded regex-syntax v0.7.2
[INFO] [stderr]   Downloaded ttf-parser v0.15.2
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded freetype v0.7.0
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded pasta_curves v0.4.1
[INFO] [stderr]   Downloaded constant_time_eq v0.2.5
[INFO] [stderr]   Downloaded tabbycat v0.1.2
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded log v0.4.18
[INFO] [stderr]   Downloaded png v0.17.8
[INFO] [stderr]   Downloaded font-kit v0.11.0
[INFO] [stderr]   Downloaded web-sys v0.3.63
[INFO] [stderr]   Downloaded syn v2.0.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 555db2bd9fdd8e1f304aa747a4b67a59e3c086af4bbbbd6ee5473298f18bea99
[INFO] running `Command { std: "docker" "start" "-a" "555db2bd9fdd8e1f304aa747a4b67a59e3c086af4bbbbd6ee5473298f18bea99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "555db2bd9fdd8e1f304aa747a4b67a59e3c086af4bbbbd6ee5473298f18bea99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "555db2bd9fdd8e1f304aa747a4b67a59e3c086af4bbbbd6ee5473298f18bea99", kill_on_drop: false }`
[INFO] [stdout] 555db2bd9fdd8e1f304aa747a4b67a59e3c086af4bbbbd6ee5473298f18bea99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4015fa14ac9b5151199d20031e658df228e9a34baa3896147d08c90840672856
[INFO] running `Command { std: "docker" "start" "-a" "4015fa14ac9b5151199d20031e658df228e9a34baa3896147d08c90840672856", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking constant_time_eq v0.2.5
[INFO] [stderr]     Checking arrayref v0.3.7
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling halo2curves v0.3.1 (https://github.com/privacy-scaling-explorations/halo2curves.git?tag=0.3.1#9b67e19b)
[INFO] [stderr]     Checking once_cell v1.17.2
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking pin-project-lite v0.2.10
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking blake2b_simd v1.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling syn v2.0.18
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking pasta_curves v0.4.1
[INFO] [stderr]     Checking halo2_proofs v0.1.0 (https://github.com/zcash/halo2.git?rev=a898d65ae3ad3d41987666f6a03cfc15edae01c4#a898d65a)
[INFO] [stderr]    Compiling tracing-attributes v0.1.26
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking halo2_proofs v0.2.0 (https://github.com/qope/halo2.git?branch=nuno-fix#55ea456e)
[INFO] [stderr]     Checking poseidon-circuit v0.1.0 (https://github.com/qope/poseidon-circuit#f896fcac)
[INFO] [stderr]     Checking halo2-base v0.2.2 (https://github.com/qope/halo2-lib?branch=0.2.2#3b762aa0)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/halo2-lib-e5ce8afef849a761/3b762aa/halo2-base/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(stmt_expr_attributes)]
[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 `halo2-base` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "4015fa14ac9b5151199d20031e658df228e9a34baa3896147d08c90840672856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4015fa14ac9b5151199d20031e658df228e9a34baa3896147d08c90840672856", kill_on_drop: false }`
[INFO] [stdout] 4015fa14ac9b5151199d20031e658df228e9a34baa3896147d08c90840672856
