[INFO] fetching crate reverie-zk 0.3.2...
[INFO] testing reverie-zk-0.3.2 against 1.91.0 for beta-1.92-2
[INFO] extracting crate reverie-zk 0.3.2 into /workspace/builds/worker-6-tc1/source
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate reverie-zk 0.3.2
[INFO] finished tweaking crates.io crate reverie-zk 0.3.2
[INFO] tweaked toml for crates.io crate reverie-zk 0.3.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate reverie-zk 0.3.2 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate reverie-zk 0.3.2 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded variant_count v1.1.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded lexpr-macros v0.2.1
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[INFO] [stderr]   Downloaded cipher v0.4.3
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[INFO] [stderr]   Downloaded async-executor v1.4.1
[INFO] [stderr]   Downloaded async-channel v1.7.1
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[INFO] [stderr]   Downloaded async-task v4.3.0
[INFO] [stderr]   Downloaded polling v2.4.0
[INFO] [stderr]   Downloaded async-io v1.10.0
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded aes v0.8.2
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[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded kv-log-macro v1.0.7
[INFO] [stderr]   Downloaded toml v0.5.9
[INFO] [stderr]   Downloaded cargo-lock v7.1.0
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded concurrent-queue v1.2.4
[INFO] [stderr]   Downloaded wepoll-ffi v0.1.2
[INFO] [stderr]   Downloaded parking v2.0.0
[INFO] [stderr]   Downloaded gloo-timers v0.2.4
[INFO] [stderr]   Downloaded digest v0.10.5
[INFO] [stderr]   Downloaded atomic-waker v1.0.0
[INFO] [stderr]   Downloaded blocking v1.2.0
[INFO] [stderr]   Downloaded cache-padded v1.2.0
[INFO] [stderr]   Downloaded async-lock v2.6.0
[INFO] [stderr]   Downloaded built v0.5.1
[INFO] [stderr]   Downloaded libgit2-sys v0.12.26+1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ab84854d92cfa27483b7564623008185a08e11c6b395b8a08b2fc4aaaa966f2
[INFO] running `Command { std: "docker" "start" "-a" "1ab84854d92cfa27483b7564623008185a08e11c6b395b8a08b2fc4aaaa966f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ab84854d92cfa27483b7564623008185a08e11c6b395b8a08b2fc4aaaa966f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ab84854d92cfa27483b7564623008185a08e11c6b395b8a08b2fc4aaaa966f2", kill_on_drop: false }`
[INFO] [stdout] 1ab84854d92cfa27483b7564623008185a08e11c6b395b8a08b2fc4aaaa966f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7997a44a368b1027e29d7faedcaebf0282c1c63848efd9772065b5930cb7f4e6
[INFO] running `Command { std: "docker" "start" "-a" "7997a44a368b1027e29d7faedcaebf0282c1c63848efd9772065b5930cb7f4e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling futures-io v0.3.25
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling cache-padded v1.2.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling concurrent-queue v1.2.4
[INFO] [stderr]    Compiling polling v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling async-io v1.10.0
[INFO] [stderr]    Compiling async-task v4.3.0
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling futures-lite v1.12.0
[INFO] [stderr]    Compiling async-channel v1.7.1
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling keystream v1.0.0
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling chacha v0.3.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling jobserver v0.1.25
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling clap v4.0.18
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling cc v1.0.74
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling lexpr-macros v0.2.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling lexpr v0.2.6
[INFO] [stderr]    Compiling async-lock v2.6.0
[INFO] [stderr]    Compiling async-executor v1.4.1
[INFO] [stderr]    Compiling blocking v1.2.0
[INFO] [stderr]    Compiling chrono v0.4.22
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling inout v0.1.3
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling libgit2-sys v0.12.26+1.3.0
[INFO] [stderr]    Compiling blake3 v1.3.1
[INFO] [stderr]    Compiling digest v0.10.5
[INFO] [stderr]    Compiling cipher v0.4.3
[INFO] [stderr]    Compiling ctr v0.9.2
[INFO] [stderr]    Compiling aes v0.8.2
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling variant_count v1.1.0
[INFO] [stderr]    Compiling git2 v0.13.25
[INFO] [stderr]    Compiling kv-log-macro v1.0.7
[INFO] [stderr]    Compiling async-global-executor v2.3.1
[INFO] [stderr]    Compiling async-std v1.12.0
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling serde_json v1.0.87
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling cargo-lock v7.1.0
[INFO] [stderr]    Compiling mcircuit v0.1.10
[INFO] [stderr]    Compiling built v0.5.1
[INFO] [stderr]    Compiling reverie-zk v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `reverie-zk` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "7997a44a368b1027e29d7faedcaebf0282c1c63848efd9772065b5930cb7f4e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7997a44a368b1027e29d7faedcaebf0282c1c63848efd9772065b5930cb7f4e6", kill_on_drop: false }`
[INFO] [stdout] 7997a44a368b1027e29d7faedcaebf0282c1c63848efd9772065b5930cb7f4e6