[INFO] fetching crate symbolic 7.5.0...
[INFO] checking symbolic-7.5.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate symbolic 7.5.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate symbolic 7.5.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate symbolic 7.5.0
[INFO] removed 5 missing examples
[INFO] finished tweaking crates.io crate symbolic 7.5.0
[INFO] tweaked toml for crates.io crate symbolic 7.5.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate symbolic 7.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v1.4.2
[INFO] [stderr]   Downloaded flate2 v1.0.17
[INFO] [stderr]   Downloaded symbolic-proguard v7.5.0
[INFO] [stderr]   Downloaded time v0.1.43
[INFO] [stderr]   Downloaded string_cache v0.8.0
[INFO] [stderr]   Downloaded miniz_oxide v0.4.0
[INFO] [stderr]   Downloaded symbolic-symcache v7.5.0
[INFO] [stderr]   Downloaded addr2line v0.13.0
[INFO] [stderr]   Downloaded num-integer v0.1.43
[INFO] [stderr]   Downloaded chrono v0.4.15
[INFO] [stderr]   Downloaded scroll_derive v0.10.2
[INFO] [stderr]   Downloaded dmsort v1.0.0
[INFO] [stderr]   Downloaded cpp_demangle v0.3.0
[INFO] [stderr]   Downloaded num-iter v0.1.41
[INFO] [stderr]   Downloaded symbolic-unreal v7.5.0
[INFO] [stderr]   Downloaded symbolic-minidump v7.5.0
[INFO] [stderr]   Downloaded symbolic-demangle v7.5.0
[INFO] [stderr]   Downloaded backtrace v0.3.50
[INFO] [stderr]   Downloaded symbolic-sourcemap v7.5.0
[INFO] [stderr]   Downloaded object v0.20.0
[INFO] [stderr]   Downloaded gimli v0.22.0
[INFO] [stderr]   Downloaded syn v1.0.38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", 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] 5a6840cc5a81b20ff039ae07e8581fee68a4c55c2dfa469ce10b7d4161eecc38
[INFO] running `Command { std: "docker" "start" "-a" "5a6840cc5a81b20ff039ae07e8581fee68a4c55c2dfa469ce10b7d4161eecc38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a6840cc5a81b20ff039ae07e8581fee68a4c55c2dfa469ce10b7d4161eecc38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a6840cc5a81b20ff039ae07e8581fee68a4c55c2dfa469ce10b7d4161eecc38", kill_on_drop: false }`
[INFO] [stdout] 5a6840cc5a81b20ff039ae07e8581fee68a4c55c2dfa469ce10b7d4161eecc38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ac8dfbe3548b6430eb16c54ca5e59b3a8eee657086dd6369a7dd769dd3ac75
[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" "a7ac8dfbe3548b6430eb16c54ca5e59b3a8eee657086dd6369a7dd769dd3ac75", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking gimli v0.22.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]     Checking object v0.20.0
[INFO] [stderr]     Checking rustc-demangle v0.1.16
[INFO] [stderr]    Compiling serde v1.0.115
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking plain v0.2.3
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking podio v0.1.7
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking dmsort v1.0.0
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking miniz_oxide v0.4.0
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking flate2 v1.0.17
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.5.6
[INFO] [stderr]     Checking addr2line v0.13.0
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling scroll_derive v0.10.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking symbolic-common v7.5.0
[INFO] [stderr]     Checking scroll v0.10.1
[INFO] [stderr]     Checking pdb v0.6.0
[INFO] [stderr]     Checking goblin v0.2.3
[INFO] [stderr]     Checking symbolic-debuginfo v7.5.0
[INFO] [stderr]     Checking symbolic v7.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 16s
[INFO] running `Command { std: "docker" "inspect" "a7ac8dfbe3548b6430eb16c54ca5e59b3a8eee657086dd6369a7dd769dd3ac75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ac8dfbe3548b6430eb16c54ca5e59b3a8eee657086dd6369a7dd769dd3ac75", kill_on_drop: false }`
[INFO] [stdout] a7ac8dfbe3548b6430eb16c54ca5e59b3a8eee657086dd6369a7dd769dd3ac75