[INFO] fetching crate symbolic-unreal 7.5.0...
[INFO] checking symbolic-unreal-7.5.0 against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] extracting crate symbolic-unreal 7.5.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate symbolic-unreal 7.5.0 on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate symbolic-unreal 7.5.0
[INFO] finished tweaking crates.io crate symbolic-unreal 7.5.0
[INFO] tweaked toml for crates.io crate symbolic-unreal 7.5.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "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" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 844f0f99b2241d4adbad14987bee1fee589658762fa28ca02efe780b5183c689
[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" "844f0f99b2241d4adbad14987bee1fee589658762fa28ca02efe780b5183c689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "844f0f99b2241d4adbad14987bee1fee589658762fa28ca02efe780b5183c689", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "844f0f99b2241d4adbad14987bee1fee589658762fa28ca02efe780b5183c689", kill_on_drop: false }`
[INFO] [stdout] 844f0f99b2241d4adbad14987bee1fee589658762fa28ca02efe780b5183c689
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83cb2fb07ec60b5bf8a48ce0643284f43ffe360cb018bd1146d6d3e4772d8f0a
[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" "83cb2fb07ec60b5bf8a48ce0643284f43ffe360cb018bd1146d6d3e4772d8f0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking siphasher v0.3.3
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking terminal_size v0.1.13
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking console v0.10.3
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]     Checking anylog v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking serde_yaml v0.8.13
[INFO] [stderr]     Checking elementtree v0.5.0
[INFO] [stderr]     Checking symbolic-unreal v7.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking insta v0.15.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "83cb2fb07ec60b5bf8a48ce0643284f43ffe360cb018bd1146d6d3e4772d8f0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83cb2fb07ec60b5bf8a48ce0643284f43ffe360cb018bd1146d6d3e4772d8f0a", kill_on_drop: false }`
[INFO] [stdout] 83cb2fb07ec60b5bf8a48ce0643284f43ffe360cb018bd1146d6d3e4772d8f0a