[INFO] cloning repository https://github.com/ardaku/one_alloc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ardaku/one_alloc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fardaku%2Fone_alloc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fardaku%2Fone_alloc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 09a516017557c4c9d8163f395a6c2fbcaa9e46b1
[INFO] checking ardaku/one_alloc against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fardaku%2Fone_alloc" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ardaku/one_alloc
[INFO] finished tweaking git repo https://github.com/ardaku/one_alloc
[INFO] tweaked toml for git repo https://github.com/ardaku/one_alloc written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ardaku/one_alloc 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/ardaku/one_alloc 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 441accb5a5d05d03400fa7d1de33733a13522e89128ee53bc4a8b808758d6daf
[INFO] running `Command { std: "docker" "start" "-a" "441accb5a5d05d03400fa7d1de33733a13522e89128ee53bc4a8b808758d6daf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "441accb5a5d05d03400fa7d1de33733a13522e89128ee53bc4a8b808758d6daf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "441accb5a5d05d03400fa7d1de33733a13522e89128ee53bc4a8b808758d6daf", kill_on_drop: false }`
[INFO] [stdout] 441accb5a5d05d03400fa7d1de33733a13522e89128ee53bc4a8b808758d6daf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cbb63761679a9c5cbaac49a14dd05cc2b50d1da8308217589b144254e3eb3f30
[INFO] running `Command { std: "docker" "start" "-a" "cbb63761679a9c5cbaac49a14dd05cc2b50d1da8308217589b144254e3eb3f30", kill_on_drop: false }`
[INFO] [stderr]     Checking one_alloc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `one_alloc` (example "main") due to 1 previous error; 3 warnings emitted
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> examples/main.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(lang_items)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: the feature `default_alloc_error_handler` has been stable since `1.68.0` and no longer requires an attribute to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `lang_items` is internal to the compiler or standard library
[INFO] [stdout]  --> examples/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(lang_items)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `default_alloc_error_handler` has been stable since 1.68.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(default_alloc_error_handler)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `core_c_str` has been stable since 1.64.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> examples/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(core_c_str)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cbb63761679a9c5cbaac49a14dd05cc2b50d1da8308217589b144254e3eb3f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbb63761679a9c5cbaac49a14dd05cc2b50d1da8308217589b144254e3eb3f30", kill_on_drop: false }`
[INFO] [stdout] cbb63761679a9c5cbaac49a14dd05cc2b50d1da8308217589b144254e3eb3f30
