[INFO] fetching crate jkcenum 0.2.0...
[INFO] testing jkcenum-0.2.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate jkcenum 0.2.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate jkcenum 0.2.0 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jkcenum 0.2.0
[INFO] finished tweaking crates.io crate jkcenum 0.2.0
[INFO] tweaked toml for crates.io crate jkcenum 0.2.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded jkcenum_derive v0.2.0
[INFO] [stderr]   Downloaded virtue v0.0.16
[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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f23bdcda5ad1455d562b2bfab423cde1d29ed6ba0f2c07e74900bc7312a08c5
[INFO] running `Command { std: "docker" "start" "-a" "1f23bdcda5ad1455d562b2bfab423cde1d29ed6ba0f2c07e74900bc7312a08c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f23bdcda5ad1455d562b2bfab423cde1d29ed6ba0f2c07e74900bc7312a08c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f23bdcda5ad1455d562b2bfab423cde1d29ed6ba0f2c07e74900bc7312a08c5", kill_on_drop: false }`
[INFO] [stdout] 1f23bdcda5ad1455d562b2bfab423cde1d29ed6ba0f2c07e74900bc7312a08c5
[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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7b8ab5c20bc1e0c329899a69788f752015e69357ef4b0d18b0ea0cc379fbf42
[INFO] running `Command { std: "docker" "start" "-a" "b7b8ab5c20bc1e0c329899a69788f752015e69357ef4b0d18b0ea0cc379fbf42", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling jkcenum v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 2.82s
[INFO] running `Command { std: "docker" "inspect" "b7b8ab5c20bc1e0c329899a69788f752015e69357ef4b0d18b0ea0cc379fbf42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7b8ab5c20bc1e0c329899a69788f752015e69357ef4b0d18b0ea0cc379fbf42", kill_on_drop: false }`
[INFO] [stdout] b7b8ab5c20bc1e0c329899a69788f752015e69357ef4b0d18b0ea0cc379fbf42
[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" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a33cd0d6ec81fed8cfbc9c04f1d01514ebf3b34a38903239b5fe4aa7fb3f515
[INFO] running `Command { std: "docker" "start" "-a" "2a33cd0d6ec81fed8cfbc9c04f1d01514ebf3b34a38903239b5fe4aa7fb3f515", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling virtue v0.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling jkcenum_derive v0.2.0
[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-6f17d22bba15001f/jkcenum_derive-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jkcenum_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2a33cd0d6ec81fed8cfbc9c04f1d01514ebf3b34a38903239b5fe4aa7fb3f515", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a33cd0d6ec81fed8cfbc9c04f1d01514ebf3b34a38903239b5fe4aa7fb3f515", kill_on_drop: false }`
[INFO] [stdout] 2a33cd0d6ec81fed8cfbc9c04f1d01514ebf3b34a38903239b5fe4aa7fb3f515
[INFO] testing jkcenum-0.2.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate jkcenum 0.2.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate jkcenum 0.2.0 on toolchain beta-2024-02-10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jkcenum 0.2.0
[INFO] finished tweaking crates.io crate jkcenum 0.2.0
[INFO] tweaked toml for crates.io crate jkcenum 0.2.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34e47a418f5e88cf8ebff05fbade35e7639cfbc7763b22a0c36ae4954d4497b9
[INFO] running `Command { std: "docker" "start" "-a" "34e47a418f5e88cf8ebff05fbade35e7639cfbc7763b22a0c36ae4954d4497b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34e47a418f5e88cf8ebff05fbade35e7639cfbc7763b22a0c36ae4954d4497b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34e47a418f5e88cf8ebff05fbade35e7639cfbc7763b22a0c36ae4954d4497b9", kill_on_drop: false }`
[INFO] [stdout] 34e47a418f5e88cf8ebff05fbade35e7639cfbc7763b22a0c36ae4954d4497b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6117f4779d811a9c19faa16e5ed0d8fff44e0123e730203d1c4f6d7c871e9bb7
[INFO] running `Command { std: "docker" "start" "-a" "6117f4779d811a9c19faa16e5ed0d8fff44e0123e730203d1c4f6d7c871e9bb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling jkcenum v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "6117f4779d811a9c19faa16e5ed0d8fff44e0123e730203d1c4f6d7c871e9bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6117f4779d811a9c19faa16e5ed0d8fff44e0123e730203d1c4f6d7c871e9bb7", kill_on_drop: false }`
[INFO] [stdout] 6117f4779d811a9c19faa16e5ed0d8fff44e0123e730203d1c4f6d7c871e9bb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41ae3a11351dfb5e8b05d0e406e1e3a64674f0b2eacfd42799deb4e0cf1240fc
[INFO] running `Command { std: "docker" "start" "-a" "41ae3a11351dfb5e8b05d0e406e1e3a64674f0b2eacfd42799deb4e0cf1240fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling virtue v0.0.16
[INFO] [stderr]    Compiling serde_derive v1.0.196
[INFO] [stderr]    Compiling jkcenum_derive v0.2.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/jkcenum_derive-0.2.0/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `jkcenum_derive` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "41ae3a11351dfb5e8b05d0e406e1e3a64674f0b2eacfd42799deb4e0cf1240fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41ae3a11351dfb5e8b05d0e406e1e3a64674f0b2eacfd42799deb4e0cf1240fc", kill_on_drop: false }`
[INFO] [stdout] 41ae3a11351dfb5e8b05d0e406e1e3a64674f0b2eacfd42799deb4e0cf1240fc
