[INFO] cloning repository https://github.com/DelSkayn/toyjs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DelSkayn/toyjs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDelSkayn%2Ftoyjs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDelSkayn%2Ftoyjs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9889bafdb4e5f0de475707685798cd353494d81
[INFO] testing DelSkayn/toyjs against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDelSkayn%2Ftoyjs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DelSkayn/toyjs on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DelSkayn/toyjs
[INFO] finished tweaking git repo https://github.com/DelSkayn/toyjs
[INFO] tweaked toml for git repo https://github.com/DelSkayn/toyjs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/DelSkayn/toyjs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded lexical-core v0.8.3
[INFO] [stderr]   Downloaded lexical-parse-integer v0.8.3
[INFO] [stderr]   Downloaded lexical-write-float v0.8.4
[INFO] [stderr]   Downloaded lexical-parse-float v0.8.3
[INFO] [stderr]   Downloaded lexical-util v0.8.3
[INFO] [stderr]   Downloaded lexical-write-integer v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18727f4570b84e1fd658967e54d77444691c5104eada12d2670f9bbf5f174e09
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "18727f4570b84e1fd658967e54d77444691c5104eada12d2670f9bbf5f174e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18727f4570b84e1fd658967e54d77444691c5104eada12d2670f9bbf5f174e09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18727f4570b84e1fd658967e54d77444691c5104eada12d2670f9bbf5f174e09", kill_on_drop: false }`
[INFO] [stdout] 18727f4570b84e1fd658967e54d77444691c5104eada12d2670f9bbf5f174e09
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d644f7c13f5f025ada9756b5e46939f436fd7335918aef8d91bf29097ea3fb8f
[INFO] running `Command { std: "docker" "start" "-a" "d644f7c13f5f025ada9756b5e46939f436fd7335918aef8d91bf29097ea3fb8f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.89
[INFO] [stderr]    Compiling bumpalo v3.9.1
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.74
[INFO] [stderr]    Compiling wasm-bindgen v0.2.74
[INFO] [stderr]    Compiling lexical-util v0.8.3
[INFO] [stderr]    Compiling quote v1.0.16
[INFO] [stderr]    Compiling toyjs_common v0.1.0 (/opt/rustwide/workdir/crates/common)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> crates/common/src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[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 `toyjs_common` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d644f7c13f5f025ada9756b5e46939f436fd7335918aef8d91bf29097ea3fb8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d644f7c13f5f025ada9756b5e46939f436fd7335918aef8d91bf29097ea3fb8f", kill_on_drop: false }`
[INFO] [stdout] d644f7c13f5f025ada9756b5e46939f436fd7335918aef8d91bf29097ea3fb8f