[INFO] fetching crate stemjail 0.4.1...
[INFO] testing stemjail-0.4.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate stemjail 0.4.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate stemjail 0.4.1
[INFO] finished tweaking crates.io crate stemjail 0.4.1
[INFO] tweaked toml for crates.io crate stemjail 0.4.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stemjail 0.4.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 44 packages to latest compatible versions
[INFO] [stderr]       Adding bincode v0.5.9 (available: v3.0.0)
[INFO] [stderr]       Adding bitflags v0.5.0 (available: v2.11.1)
[INFO] [stderr]       Adding byteorder v0.5.3 (available: v1.5.0)
[INFO] [stderr]       Adding env_logger v0.3.5 (available: v0.11.10)
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.29)
[INFO] [stderr]       Adding rand v0.3.23 (available: v0.10.1)
[INFO] [stderr]       Adding toml v0.1.30 (available: v1.1.2+spec-1.1.0)
[INFO] [stderr]       Adding tty v0.4.5 (available: v0.5.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4e12b452f6e3730bc5319e3a3f481b4896ba41b643665a4af75a3e0fb9cb5480
[INFO] running `Command { std: "docker" "start" "-a" "4e12b452f6e3730bc5319e3a3f481b4896ba41b643665a4af75a3e0fb9cb5480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4e12b452f6e3730bc5319e3a3f481b4896ba41b643665a4af75a3e0fb9cb5480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e12b452f6e3730bc5319e3a3f481b4896ba41b643665a4af75a3e0fb9cb5480", kill_on_drop: false }`
[INFO] [stdout] 4e12b452f6e3730bc5319e3a3f481b4896ba41b643665a4af75a3e0fb9cb5480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04da6095b765ced741da12f25231e53ccd489098c6ddd207161f795f0cbe315d
[INFO] running `Command { std: "docker" "start" "-a" "04da6095b765ced741da12f25231e53ccd489098c6ddd207161f795f0cbe315d", kill_on_drop: false }`
[INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024`
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling dot v0.1.4
[INFO] [stderr]    Compiling serde v0.7.15
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling getopts v0.2.24
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling fd v0.2.3
[INFO] [stderr]    Compiling unix_socket v0.5.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling termios v0.2.2
[INFO] [stderr]    Compiling mnt v0.3.1
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling fdpass v0.1.0
[INFO] [stderr]    Compiling tty v0.4.5
[INFO] [stderr]    Compiling stemflow v0.5.3
[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-1949cf8c6b5b557f/tty-0.4.5/src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | #![feature(process_exec)]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0463]: can't find crate for `collections`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stemflow-0.5.3/src/lib.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 | extern crate collections;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tty` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `stemflow` (lib) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "04da6095b765ced741da12f25231e53ccd489098c6ddd207161f795f0cbe315d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04da6095b765ced741da12f25231e53ccd489098c6ddd207161f795f0cbe315d", kill_on_drop: false }`
[INFO] [stdout] 04da6095b765ced741da12f25231e53ccd489098c6ddd207161f795f0cbe315d
