[INFO] fetching crate mox 0.10.0...
[INFO] checking mox-0.10.0 against try#9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c for pr-79472
[INFO] extracting crate mox 0.10.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mox 0.10.0 on toolchain 9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mox 0.10.0
[INFO] finished tweaking crates.io crate mox 0.10.0
[INFO] tweaked toml for crates.io crate mox 0.10.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mox-impl v0.10.0
[INFO] [stderr]   Downloaded topo v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c976e4ef814b8112d04457cca2547c0cda6e08aa4dadfa6d9a2d7e8aab0a3eb
[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" "6c976e4ef814b8112d04457cca2547c0cda6e08aa4dadfa6d9a2d7e8aab0a3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c976e4ef814b8112d04457cca2547c0cda6e08aa4dadfa6d9a2d7e8aab0a3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c976e4ef814b8112d04457cca2547c0cda6e08aa4dadfa6d9a2d7e8aab0a3eb", kill_on_drop: false }`
[INFO] [stdout] 6c976e4ef814b8112d04457cca2547c0cda6e08aa4dadfa6d9a2d7e8aab0a3eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+9b49d8c6c904f63eb486fe51b14bbe0aa2feda4c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cdc4cc8b7c99271492e1cbbaf7b26b726cbc7e3edf401f5d2e665ef8ebbd8cde
[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" "cdc4cc8b7c99271492e1cbbaf7b26b726cbc7e3edf401f5d2e665ef8ebbd8cde", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking hash_hasher v2.0.3
[INFO] [stderr]    Compiling snax v0.3.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking parking_lot_core v0.8.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling illicit-macro v1.0.0
[INFO] [stderr]    Compiling topo-macro v0.10.0
[INFO] [stderr]    Compiling mox-impl v0.10.0
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking illicit v1.1.1
[INFO] [stderr]     Checking topo v0.11.0
[INFO] [stderr]     Checking mox v0.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.00s
[INFO] running `Command { std: "docker" "inspect" "cdc4cc8b7c99271492e1cbbaf7b26b726cbc7e3edf401f5d2e665ef8ebbd8cde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc4cc8b7c99271492e1cbbaf7b26b726cbc7e3edf401f5d2e665ef8ebbd8cde", kill_on_drop: false }`
[INFO] [stdout] cdc4cc8b7c99271492e1cbbaf7b26b726cbc7e3edf401f5d2e665ef8ebbd8cde