[INFO] cloning repository https://github.com/vain0x/competo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vain0x/competo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvain0x%2Fcompeto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvain0x%2Fcompeto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2eabac9240c6105965d99e41f8ea0e2d5a59cbfc
[INFO] checking vain0x/competo against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvain0x%2Fcompeto" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vain0x/competo on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vain0x/competo
[INFO] finished tweaking git repo https://github.com/vain0x/competo
[INFO] tweaked toml for git repo https://github.com/vain0x/competo written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/vain0x/competo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 841308ae638e11822062b71b44acf64caceadaf99ea011e63d0241baaffdae79
[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" "841308ae638e11822062b71b44acf64caceadaf99ea011e63d0241baaffdae79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "841308ae638e11822062b71b44acf64caceadaf99ea011e63d0241baaffdae79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841308ae638e11822062b71b44acf64caceadaf99ea011e63d0241baaffdae79", kill_on_drop: false }`
[INFO] [stdout] 841308ae638e11822062b71b44acf64caceadaf99ea011e63d0241baaffdae79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "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] f89e1c80d876f603fb3387e3dbc3f524d2d7093b9d8bbd81a93be9db29fb19cd
[INFO] running `Command { std: "docker" "start" "-a" "f89e1c80d876f603fb3387e3dbc3f524d2d7093b9d8bbd81a93be9db29fb19cd", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking lazy_static v1.0.2
[INFO] [stderr]    Compiling rustc-rayon-core v0.1.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking stable_deref_trait v1.1.0
[INFO] [stderr]    Compiling serde v1.0.70
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking rustc-ap-serialize v196.0.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling rustc-ap-rustc_target v196.0.0
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]    Compiling rustc-ap-syntax v196.0.0
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]    Compiling rustfmt-nightly v0.8.3
[INFO] [stderr]     Checking vec_map v0.8.1
[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-0.1.2/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" "f89e1c80d876f603fb3387e3dbc3f524d2d7093b9d8bbd81a93be9db29fb19cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89e1c80d876f603fb3387e3dbc3f524d2d7093b9d8bbd81a93be9db29fb19cd", kill_on_drop: false }`
[INFO] [stdout] f89e1c80d876f603fb3387e3dbc3f524d2d7093b9d8bbd81a93be9db29fb19cd