[INFO] cloning repository https://github.com/vhdirk/gnome-class
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vhdirk/gnome-class" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvhdirk%2Fgnome-class", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvhdirk%2Fgnome-class'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d01a5b2e1ac893a3b3a118992e9943c9c01f67c0
[INFO] checking vhdirk/gnome-class against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvhdirk%2Fgnome-class" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vhdirk/gnome-class on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vhdirk/gnome-class
[INFO] finished tweaking git repo https://github.com/vhdirk/gnome-class
[INFO] tweaked toml for git repo https://github.com/vhdirk/gnome-class written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/vhdirk/gnome-class already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.2.2
[INFO] [stderr]   Downloaded parking_lot v0.5.4
[INFO] [stderr]   Downloaded getopts v0.2.17
[INFO] [stderr]   Downloaded atty v0.2.8
[INFO] [stderr]   Downloaded cc v1.0.10
[INFO] [stderr]   Downloaded proc-macro2 v0.3.6
[INFO] [stderr]   Downloaded env_logger v0.5.8
[INFO] [stderr]   Downloaded miow v0.3.1
[INFO] [stderr]   Downloaded regex-syntax v0.5.5
[INFO] [stderr]   Downloaded scoped-tls v0.1.1
[INFO] [stderr]   Downloaded serde v1.0.38
[INFO] [stderr]   Downloaded serde_json v1.0.14
[INFO] [stderr]   Downloaded owning_ref v0.3.3
[INFO] [stderr]   Downloaded serde_derive v1.0.38
[INFO] [stderr]   Downloaded cargo_metadata v0.5.4
[INFO] [stderr]   Downloaded smallvec v0.6.0
[INFO] [stderr]   Downloaded quote v0.5.1
[INFO] [stderr]   Downloaded regex v0.2.10
[INFO] [stderr]   Downloaded derive-new v0.5.4
[INFO] [stderr]   Downloaded diff v0.1.11
[INFO] [stderr]   Downloaded ena v0.9.2
[INFO] [stderr]   Downloaded rustc-demangle v0.1.7
[INFO] [stderr]   Downloaded parking_lot_core v0.2.13
[INFO] [stderr]   Downloaded backtrace v0.3.6
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v94.0.0
[INFO] [stderr]   Downloaded stable_deref_trait v1.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax_pos v94.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_cratesio_shim v94.0.0
[INFO] [stderr]   Downloaded rustc-ap-syntax v94.0.0
[INFO] [stderr]   Downloaded socket2 v0.3.5
[INFO] [stderr]   Downloaded rustc-ap-serialize v94.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v94.0.0
[INFO] [stderr]   Downloaded rustfmt-nightly v0.4.2
[INFO] [stderr]   Downloaded compiletest_rs v0.3.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 24b1c10a172b6d78fd1da52b7ba95bffb0de7c021c40886b9b8d6b9903003cd0
[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" "24b1c10a172b6d78fd1da52b7ba95bffb0de7c021c40886b9b8d6b9903003cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "24b1c10a172b6d78fd1da52b7ba95bffb0de7c021c40886b9b8d6b9903003cd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b1c10a172b6d78fd1da52b7ba95bffb0de7c021c40886b9b8d6b9903003cd0", kill_on_drop: false }`
[INFO] [stdout] 24b1c10a172b6d78fd1da52b7ba95bffb0de7c021c40886b9b8d6b9903003cd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--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] df69d34bd834f578425218c4ba5806ae3a349b1033a4c82d2689e66208881708
[INFO] running `Command { std: "docker" "start" "-a" "df69d34bd834f578425218c4ba5806ae3a349b1033a4c82d2689e66208881708", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.10
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking smallvec v0.6.0
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]    Compiling rustc-ap-syntax v94.0.0
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking serde v1.0.38
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]     Checking rustc-ap-serialize v94.0.0
[INFO] [stderr]     Checking scoped-tls v0.1.1
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stdout] error: `allow_internal_unstable` expects a list of feature names
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/scoped-tls-0.1.1/src/lib.rs:71:1
[INFO] [stdout]    |
[INFO] [stdout] 71 | #[allow_internal_unstable]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scoped-tls`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "df69d34bd834f578425218c4ba5806ae3a349b1033a4c82d2689e66208881708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df69d34bd834f578425218c4ba5806ae3a349b1033a4c82d2689e66208881708", kill_on_drop: false }`
[INFO] [stdout] df69d34bd834f578425218c4ba5806ae3a349b1033a4c82d2689e66208881708