[INFO] crate topo 0.13.0 is already in cache
[INFO] testing topo-0.13.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate topo 0.13.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate topo 0.13.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate topo 0.13.0
[INFO] finished tweaking crates.io crate topo 0.13.0
[INFO] tweaked toml for crates.io crate topo 0.13.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03f1c93a841168bf7bb072b3a4f05c6f48e9696b09ef042f661a7aeac5354ee6
[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" "03f1c93a841168bf7bb072b3a4f05c6f48e9696b09ef042f661a7aeac5354ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03f1c93a841168bf7bb072b3a4f05c6f48e9696b09ef042f661a7aeac5354ee6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03f1c93a841168bf7bb072b3a4f05c6f48e9696b09ef042f661a7aeac5354ee6", kill_on_drop: false }`
[INFO] [stdout] 03f1c93a841168bf7bb072b3a4f05c6f48e9696b09ef042f661a7aeac5354ee6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 177fe651b9c5ac1afec1818923124bba6d458ee201e9e6668bc4cae3bf41a1f9
[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" "177fe651b9c5ac1afec1818923124bba6d458ee201e9e6668bc4cae3bf41a1f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling hash_hasher v2.0.3
[INFO] [stderr]    Compiling lock_api v0.4.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling topo-macro v0.10.0
[INFO] [stderr]    Compiling parking_lot v0.11.0
[INFO] [stderr]    Compiling illicit-macro v1.0.0
[INFO] [stderr]    Compiling dyn-cache v0.10.0
[INFO] [stderr]    Compiling illicit v1.1.0
[INFO] [stdout] error[E0658]: the `#[track_caller]` attribute is an experimental feature
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/illicit-1.1.0/src/anon_rc.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     #[track_caller]
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #47809 <https://github.com/rust-lang/rust/issues/47809> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `#[track_caller]` attribute is an experimental feature
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/illicit-1.1.0/src/lib.rs:279:1
[INFO] [stdout]     |
[INFO] [stdout] 279 | #[track_caller]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #47809 <https://github.com/rust-lang/rust/issues/47809> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `#[track_caller]` attribute is an experimental feature
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/illicit-1.1.0/src/lib.rs:352:5
[INFO] [stdout]     |
[INFO] [stdout] 352 |     #[track_caller]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #47809 <https://github.com/rust-lang/rust/issues/47809> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `#[track_caller]` attribute is an experimental feature
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/illicit-1.1.0/src/lib.rs:369:5
[INFO] [stdout]     |
[INFO] [stdout] 369 |     #[track_caller]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #47809 <https://github.com/rust-lang/rust/issues/47809> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: the `#[track_caller]` attribute is an experimental feature
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/illicit-1.1.0/src/lib.rs:389:5
[INFO] [stdout]     |
[INFO] [stdout] 389 |     #[track_caller]
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #47809 <https://github.com/rust-lang/rust/issues/47809> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'track_caller': uses #[track_caller] which is not yet stable
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/illicit-1.1.0/src/anon_rc.rs:29:23
[INFO] [stdout]    |
[INFO] [stdout] 29 |             location: Location::caller(),
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #47809 <https://github.com/rust-lang/rust/issues/47809> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0658`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `illicit`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "177fe651b9c5ac1afec1818923124bba6d458ee201e9e6668bc4cae3bf41a1f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "177fe651b9c5ac1afec1818923124bba6d458ee201e9e6668bc4cae3bf41a1f9", kill_on_drop: false }`
[INFO] [stdout] 177fe651b9c5ac1afec1818923124bba6d458ee201e9e6668bc4cae3bf41a1f9