[INFO] fetching crate writedown 0.1.0...
[INFO] testing writedown-0.1.0 against 1.76.0 for beta-1.77-1
[INFO] extracting crate writedown 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate writedown 0.1.0 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 writedown 0.1.0
[INFO] finished tweaking crates.io crate writedown 0.1.0
[INFO] tweaked toml for crates.io crate writedown 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate writedown 0.1.0 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a03eb90a2f4f763a7659496b629fae077609d7c588749ed322e5a2da434904d1
[INFO] running `Command { std: "docker" "start" "-a" "a03eb90a2f4f763a7659496b629fae077609d7c588749ed322e5a2da434904d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a03eb90a2f4f763a7659496b629fae077609d7c588749ed322e5a2da434904d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03eb90a2f4f763a7659496b629fae077609d7c588749ed322e5a2da434904d1", kill_on_drop: false }`
[INFO] [stdout] a03eb90a2f4f763a7659496b629fae077609d7c588749ed322e5a2da434904d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 25312eb0ec10874eca4db8be4d983a339a1463edb22e2acbc8491c1c01b43bf7
[INFO] running `Command { std: "docker" "start" "-a" "25312eb0ec10874eca4db8be4d983a339a1463edb22e2acbc8491c1c01b43bf7", kill_on_drop: false }`
[INFO] [stderr]    Compiling writedown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(assert_matches)]
[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 `writedown` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "25312eb0ec10874eca4db8be4d983a339a1463edb22e2acbc8491c1c01b43bf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25312eb0ec10874eca4db8be4d983a339a1463edb22e2acbc8491c1c01b43bf7", kill_on_drop: false }`
[INFO] [stdout] 25312eb0ec10874eca4db8be4d983a339a1463edb22e2acbc8491c1c01b43bf7
[INFO] testing writedown-0.1.0 against beta-2024-02-10 for beta-1.77-1
[INFO] extracting crate writedown 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate writedown 0.1.0 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 writedown 0.1.0
[INFO] finished tweaking crates.io crate writedown 0.1.0
[INFO] tweaked toml for crates.io crate writedown 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate writedown 0.1.0 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" "+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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0018e4bea13e586f39ef5ae812057af4d550182ed41834b4eea300c59d894c96
[INFO] running `Command { std: "docker" "start" "-a" "0018e4bea13e586f39ef5ae812057af4d550182ed41834b4eea300c59d894c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0018e4bea13e586f39ef5ae812057af4d550182ed41834b4eea300c59d894c96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0018e4bea13e586f39ef5ae812057af4d550182ed41834b4eea300c59d894c96", kill_on_drop: false }`
[INFO] [stdout] 0018e4bea13e586f39ef5ae812057af4d550182ed41834b4eea300c59d894c96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2cc1e26033de0a9a54c7e4f5e8a37431382b55ee4e90da4b468b6a7ffc5283fd
[INFO] running `Command { std: "docker" "start" "-a" "2cc1e26033de0a9a54c7e4f5e8a37431382b55ee4e90da4b468b6a7ffc5283fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling writedown v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(assert_matches)]
[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 `writedown` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "2cc1e26033de0a9a54c7e4f5e8a37431382b55ee4e90da4b468b6a7ffc5283fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cc1e26033de0a9a54c7e4f5e8a37431382b55ee4e90da4b468b6a7ffc5283fd", kill_on_drop: false }`
[INFO] [stdout] 2cc1e26033de0a9a54c7e4f5e8a37431382b55ee4e90da4b468b6a7ffc5283fd
