[INFO] cloning repository https://github.com/347Online/ump_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/347Online/ump_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F347Online%2Fump_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F347Online%2Fump_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 144323a2ed7e286ca8ad1582f28391b328c3520d
[INFO] testing 347Online/ump_lang against 1.75.0 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F347Online%2Fump_lang" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/347Online/ump_lang 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 git repo https://github.com/347Online/ump_lang
[INFO] finished tweaking git repo https://github.com/347Online/ump_lang
[INFO] tweaked toml for git repo https://github.com/347Online/ump_lang written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/347Online/ump_lang 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" "+1.75.0" "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" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3baa9581329169c032625113f14e048a2a594d5dc3afe0d2b6d184db605ff4f8
[INFO] running `Command { std: "docker" "start" "-a" "3baa9581329169c032625113f14e048a2a594d5dc3afe0d2b6d184db605ff4f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3baa9581329169c032625113f14e048a2a594d5dc3afe0d2b6d184db605ff4f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3baa9581329169c032625113f14e048a2a594d5dc3afe0d2b6d184db605ff4f8", kill_on_drop: false }`
[INFO] [stdout] 3baa9581329169c032625113f14e048a2a594d5dc3afe0d2b6d184db605ff4f8
[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" "+1.75.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa4575a061d95fbd65303f8e096acf6a82cd1ef894ac30cf87ad56545e7849e4
[INFO] running `Command { std: "docker" "start" "-a" "fa4575a061d95fbd65303f8e096acf6a82cd1ef894ac30cf87ad56545e7849e4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling linux-raw-sys v0.4.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling uuid v1.5.0
[INFO] [stderr]    Compiling fd-lock v3.0.13
[INFO] [stderr]    Compiling rustyline v12.0.0
[INFO] [stderr]    Compiling umpteen v0.4.0 (/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(let_chains, box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/umpteen/repr/object.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `umpteen` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "fa4575a061d95fbd65303f8e096acf6a82cd1ef894ac30cf87ad56545e7849e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa4575a061d95fbd65303f8e096acf6a82cd1ef894ac30cf87ad56545e7849e4", kill_on_drop: false }`
[INFO] [stdout] fa4575a061d95fbd65303f8e096acf6a82cd1ef894ac30cf87ad56545e7849e4
[INFO] testing 347Online/ump_lang against beta-2023-12-22 for beta-1.76-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F347Online%2Fump_lang" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/347Online/ump_lang 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 git repo https://github.com/347Online/ump_lang
[INFO] finished tweaking git repo https://github.com/347Online/ump_lang
[INFO] tweaked toml for git repo https://github.com/347Online/ump_lang written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/347Online/ump_lang 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-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-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-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ae05f2258afbaa3cd85508bb2f6b75606d939d4158360020f7b3b30b6a7f2c7
[INFO] running `Command { std: "docker" "start" "-a" "9ae05f2258afbaa3cd85508bb2f6b75606d939d4158360020f7b3b30b6a7f2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ae05f2258afbaa3cd85508bb2f6b75606d939d4158360020f7b3b30b6a7f2c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ae05f2258afbaa3cd85508bb2f6b75606d939d4158360020f7b3b30b6a7f2c7", kill_on_drop: false }`
[INFO] [stdout] 9ae05f2258afbaa3cd85508bb2f6b75606d939d4158360020f7b3b30b6a7f2c7
[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-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce2ba9616a4e92c86c3f013501c0f15187cb6d0db10389da9b971df5418efb74
[INFO] running `Command { std: "docker" "start" "-a" "ce2ba9616a4e92c86c3f013501c0f15187cb6d0db10389da9b971df5418efb74", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling rustix v0.38.21
[INFO] [stderr]    Compiling linux-raw-sys v0.4.11
[INFO] [stderr]    Compiling smallvec v1.11.1
[INFO] [stderr]    Compiling bitflags v2.4.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling log v0.4.20
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling home v0.5.5
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling nix v0.26.4
[INFO] [stderr]    Compiling uuid v1.5.0
[INFO] [stderr]    Compiling fd-lock v3.0.13
[INFO] [stderr]    Compiling rustyline v12.0.0
[INFO] [stderr]    Compiling umpteen v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(let_chains, box_patterns)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/umpteen/repr/object.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     rc::Rc,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `umpteen` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ce2ba9616a4e92c86c3f013501c0f15187cb6d0db10389da9b971df5418efb74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2ba9616a4e92c86c3f013501c0f15187cb6d0db10389da9b971df5418efb74", kill_on_drop: false }`
[INFO] [stdout] ce2ba9616a4e92c86c3f013501c0f15187cb6d0db10389da9b971df5418efb74
