[INFO] cloning repository https://github.com/Esu0/doubly-linked-list
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Esu0/doubly-linked-list" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEsu0%2Fdoubly-linked-list", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEsu0%2Fdoubly-linked-list'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 308aefceccb5f728c89f7a6ef1f9a2ee71a80734
[INFO] checking Esu0/doubly-linked-list against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEsu0%2Fdoubly-linked-list" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/Esu0/doubly-linked-list
[INFO] finished tweaking git repo https://github.com/Esu0/doubly-linked-list
[INFO] tweaked toml for git repo https://github.com/Esu0/doubly-linked-list written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Esu0/doubly-linked-list on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Esu0/doubly-linked-list 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/Esu0/debug-allocator`
[INFO] [stderr]     Updating git repository `https://github.com/Esu0/detect-drop`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thin-dst v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b84e21a6b6ea0be3050131209db1d0a1c1f5f22bb4bd0a49420631bd6c0dc134
[INFO] running `Command { std: "docker" "start" "-a" "b84e21a6b6ea0be3050131209db1d0a1c1f5f22bb4bd0a49420631bd6c0dc134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b84e21a6b6ea0be3050131209db1d0a1c1f5f22bb4bd0a49420631bd6c0dc134", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b84e21a6b6ea0be3050131209db1d0a1c1f5f22bb4bd0a49420631bd6c0dc134", kill_on_drop: false }`
[INFO] [stdout] b84e21a6b6ea0be3050131209db1d0a1c1f5f22bb4bd0a49420631bd6c0dc134
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06681d19049aeef1ec946986053a7744b2dedaeaa44078d6d72fb567bbbef7c8
[INFO] running `Command { std: "docker" "start" "-a" "06681d19049aeef1ec946986053a7744b2dedaeaa44078d6d72fb567bbbef7c8", kill_on_drop: false }`
[INFO] [stderr]     Checking thin-dst v1.1.0
[INFO] [stderr]     Checking debug-allocator v0.1.2 (https://github.com/Esu0/debug-allocator#45877450)
[INFO] [stderr]     Checking detect-drop v0.1.0 (https://github.com/Esu0/detect-drop#10b9a549)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/debug-allocator-94d93dd278ce6a5b/4587745/src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `debug-allocator` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "06681d19049aeef1ec946986053a7744b2dedaeaa44078d6d72fb567bbbef7c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06681d19049aeef1ec946986053a7744b2dedaeaa44078d6d72fb567bbbef7c8", kill_on_drop: false }`
[INFO] [stdout] 06681d19049aeef1ec946986053a7744b2dedaeaa44078d6d72fb567bbbef7c8