[INFO] fetching crate iomrascalai 0.1.7...
[INFO] testing iomrascalai-0.1.7 against 1.75.0 for beta-1.76-1
[INFO] extracting crate iomrascalai 0.1.7 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate iomrascalai 0.1.7 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iomrascalai 0.1.7
[INFO] finished tweaking crates.io crate iomrascalai 0.1.7
[INFO] tweaked toml for crates.io crate iomrascalai 0.1.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "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" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded regex_macros v0.2.0
[INFO] [stderr]   Downloaded strenum v0.0.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6fee78ff5b12e376e7f0ce869e2fab35fd34c2d70cf4f7f0e2e9d8afb81a1f6
[INFO] running `Command { std: "docker" "start" "-a" "d6fee78ff5b12e376e7f0ce869e2fab35fd34c2d70cf4f7f0e2e9d8afb81a1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6fee78ff5b12e376e7f0ce869e2fab35fd34c2d70cf4f7f0e2e9d8afb81a1f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6fee78ff5b12e376e7f0ce869e2fab35fd34c2d70cf4f7f0e2e9d8afb81a1f6", kill_on_drop: false }`
[INFO] [stdout] d6fee78ff5b12e376e7f0ce869e2fab35fd34c2d70cf4f7f0e2e9d8afb81a1f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8ab1318290cb761cb35b62a3aa3c835bd92cb77f9e816233f67ecb411c29d74a
[INFO] running `Command { std: "docker" "start" "-a" "8ab1318290cb761cb35b62a3aa3c835bd92cb77f9e816233f67ecb411c29d74a", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling time v0.3.31
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[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/regex-0.2.11/src/lib.rs:522:42
[INFO] [stdout]     |
[INFO] [stdout] 522 | #![cfg_attr(feature = "pattern", feature(pattern))]
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 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 `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8ab1318290cb761cb35b62a3aa3c835bd92cb77f9e816233f67ecb411c29d74a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab1318290cb761cb35b62a3aa3c835bd92cb77f9e816233f67ecb411c29d74a", kill_on_drop: false }`
[INFO] [stdout] 8ab1318290cb761cb35b62a3aa3c835bd92cb77f9e816233f67ecb411c29d74a
[INFO] testing iomrascalai-0.1.7 against beta-2023-12-22 for beta-1.76-1
[INFO] extracting crate iomrascalai 0.1.7 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate iomrascalai 0.1.7 on toolchain beta-2023-12-22
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iomrascalai 0.1.7
[INFO] finished tweaking crates.io crate iomrascalai 0.1.7
[INFO] tweaked toml for crates.io crate iomrascalai 0.1.7 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "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-2023-12-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd5e833080d1eee05f56fa954584a6abbad2fed93097b170dd4cdb132b09d272
[INFO] running `Command { std: "docker" "start" "-a" "cd5e833080d1eee05f56fa954584a6abbad2fed93097b170dd4cdb132b09d272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd5e833080d1eee05f56fa954584a6abbad2fed93097b170dd4cdb132b09d272", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd5e833080d1eee05f56fa954584a6abbad2fed93097b170dd4cdb132b09d272", kill_on_drop: false }`
[INFO] [stdout] cd5e833080d1eee05f56fa954584a6abbad2fed93097b170dd4cdb132b09d272
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 012f5e99c48122c5af8db1018832e283c1acab069985527999ef5f5c35656e43
[INFO] running `Command { std: "docker" "start" "-a" "012f5e99c48122c5af8db1018832e283c1acab069985527999ef5f5c35656e43", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling ucd-util v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.5
[INFO] [stderr]    Compiling powerfmt v0.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling deranged v0.3.11
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling time-core v0.1.2
[INFO] [stderr]    Compiling getrandom v0.2.11
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling num-complex v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]    Compiling enum_primitive v0.1.1
[INFO] [stderr]    Compiling rand v0.8.5
[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/regex-0.2.11/src/lib.rs:522:42
[INFO] [stdout]     |
[INFO] [stdout] 522 | #![cfg_attr(feature = "pattern", feature(pattern))]
[INFO] [stdout]     |                                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling time v0.3.31
[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 `regex` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "012f5e99c48122c5af8db1018832e283c1acab069985527999ef5f5c35656e43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "012f5e99c48122c5af8db1018832e283c1acab069985527999ef5f5c35656e43", kill_on_drop: false }`
[INFO] [stdout] 012f5e99c48122c5af8db1018832e283c1acab069985527999ef5f5c35656e43
