[INFO] cloning repository https://github.com/wycats/gkc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wycats/gkc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fgkc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fgkc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2eb20ef64bba898929acca18687291814f270090
[INFO] testing wycats/gkc against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fgkc" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wycats/gkc on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wycats/gkc
[INFO] finished tweaking git repo https://github.com/wycats/gkc
[INFO] tweaked toml for git repo https://github.com/wycats/gkc written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/wycats/gkc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded swc_atoms v0.2.5
[INFO] [stderr]   Downloaded gitignore v1.0.7
[INFO] [stderr]   Downloaded const-random-macro v0.1.12
[INFO] [stderr]   Downloaded swc_ecma_codegen_macros v0.5.0
[INFO] [stderr]   Downloaded const-random v0.1.12
[INFO] [stderr]   Downloaded jsdoc v0.11.0
[INFO] [stderr]   Downloaded swc_visit_macros v0.2.1
[INFO] [stderr]   Downloaded relative-path v1.3.2
[INFO] [stderr]   Downloaded dashmap v3.11.10
[INFO] [stderr]   Downloaded swc_ecma_utils v0.25.0
[INFO] [stderr]   Downloaded swc_common v0.10.6
[INFO] [stderr]   Downloaded swc_ecma_visit v0.21.0
[INFO] [stderr]   Downloaded swc_ecma_ast v0.35.0
[INFO] [stderr]   Downloaded swc_visit v0.2.2
[INFO] [stderr]   Downloaded swc_ecma_transforms_macros v0.1.1
[INFO] [stderr]   Downloaded swc_ecma_parser v0.43.1
[INFO] [stderr]   Downloaded swc_ecma_transforms v0.30.4
[INFO] [stderr]   Downloaded swc_ecmascript v0.15.0
[INFO] [stderr]   Downloaded swc_ecma_codegen v0.41.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b68a78d0fc8ef658b166a8e9eb9308dc48ad3266fc28ba8395125f562e20324c
[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" "b68a78d0fc8ef658b166a8e9eb9308dc48ad3266fc28ba8395125f562e20324c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b68a78d0fc8ef658b166a8e9eb9308dc48ad3266fc28ba8395125f562e20324c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b68a78d0fc8ef658b166a8e9eb9308dc48ad3266fc28ba8395125f562e20324c", kill_on_drop: false }`
[INFO] [stdout] b68a78d0fc8ef658b166a8e9eb9308dc48ad3266fc28ba8395125f562e20324c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--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] c7fbc58ee7e83394d047ee0087850b2dbf50b0cf2dd3425182f073b121d80386
[INFO] running `Command { std: "docker" "start" "-a" "c7fbc58ee7e83394d047ee0087850b2dbf50b0cf2dd3425182f073b121d80386", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling if_chain v1.0.1
[INFO] [stderr]    Compiling smallvec v1.5.0
[INFO] [stderr]    Compiling hashbrown v0.9.1
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling retain_mut v0.1.1
[INFO] [stderr]    Compiling linked-hash-map v0.5.3
[INFO] [stderr]    Compiling relative-path v1.3.2
[INFO] [stderr]    Compiling pathdiff v0.2.0
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling unicode-bidi v0.3.4
[INFO] [stderr]    Compiling tinyvec v1.1.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling form_urlencoded v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling yaml-rust v0.4.4
[INFO] [stderr]    Compiling gitignore v1.0.7
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling unicode-normalization v0.1.16
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling const-random-macro v0.1.12
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling ordered-float v1.1.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling const-random v0.1.12
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling dashmap v3.11.10
[INFO] [stderr]    Compiling url v2.2.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stderr]    Compiling swc_atoms v0.2.5
[INFO] [stderr]    Compiling globwalk v0.8.0
[INFO] [stderr]    Compiling pmutil v0.5.3
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling swc_macros_common v0.3.1
[INFO] [stderr]    Compiling swc_visit_macros v0.2.1
[INFO] [stderr]    Compiling from_variant v0.1.2
[INFO] [stderr]    Compiling enum_kind v0.2.0
[INFO] [stderr]    Compiling string_enum v0.3.0
[INFO] [stderr]    Compiling is-macro v0.1.8
[INFO] [stderr]    Compiling swc_ecma_parser_macros v0.4.1
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling swc_ecma_codegen_macros v0.5.0
[INFO] [stderr]    Compiling swc_ecma_transforms_macros v0.1.1
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling ast_node v0.7.0
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling swc_visit v0.2.2
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling swc_common v0.10.6
[INFO] [stderr]    Compiling sourcemap v6.0.1
[INFO] [stderr]    Compiling swc_ecma_ast v0.35.0
[INFO] [stderr]    Compiling jsdoc v0.11.0
[INFO] [stderr]    Compiling swc_ecma_visit v0.21.0
[INFO] [stderr]    Compiling swc_ecma_codegen v0.41.3
[INFO] [stderr]    Compiling swc_ecmascript v0.15.0
[INFO] [stderr]    Compiling swc_ecma_parser v0.43.1
[INFO] [stderr]    Compiling swc_ecma_utils v0.25.0
[INFO] [stderr]    Compiling swc_ecma_transforms v0.30.4
[INFO] [stderr]    Compiling glimmerkit-build v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `file`
[INFO] [stdout]   --> src/stats.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     file: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `swc_ecma_transforms`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name swc_ecma_transforms --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/swc_ecma_transforms-0.30.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=8213dd0bee14395d -C extra-filename=-8213dd0bee14395d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern inflector=/opt/rustwide/target/debug/deps/libinflector-701413e79e79a0d4.rmeta --extern arrayvec=/opt/rustwide/target/debug/deps/libarrayvec-f13f4f0dbb450543.rmeta --extern either=/opt/rustwide/target/debug/deps/libeither-bdbb982f7ccc1550.rmeta --extern fxhash=/opt/rustwide/target/debug/deps/libfxhash-c2bd72848bedb4c6.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-c1a75bb345ce5249.rmeta --extern is_macro=/opt/rustwide/target/debug/deps/libis_macro-f5a3e953349d64bc.so --extern jsdoc=/opt/rustwide/target/debug/deps/libjsdoc-2ce18ea68d84cd4f.rmeta --extern log=/opt/rustwide/target/debug/deps/liblog-d6d50815b8652f33.rmeta --extern num_bigint=/opt/rustwide/target/debug/deps/libnum_bigint-e2fb04f4f6060754.rmeta --extern once_cell=/opt/rustwide/target/debug/deps/libonce_cell-dc85fb7e1f85098c.rmeta --extern ordered_float=/opt/rustwide/target/debug/deps/libordered_float-a40689a52ca8e59b.rmeta --extern phf=/opt/rustwide/target/debug/deps/libphf-1c32a975c6786afd.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-88a1e75c7e2bfbce.rmeta --extern retain_mut=/opt/rustwide/target/debug/deps/libretain_mut-819d7ea6605e0de3.rmeta --extern scoped_tls=/opt/rustwide/target/debug/deps/libscoped_tls-09a0f6df3274fe1f.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-42c91531a5612a0c.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-93720d4d937ade3e.rmeta --extern smallvec=/opt/rustwide/target/debug/deps/libsmallvec-d599a05b5ab36173.rmeta --extern swc_atoms=/opt/rustwide/target/debug/deps/libswc_atoms-e71ca3bd85f36097.rmeta --extern swc_common=/opt/rustwide/target/debug/deps/libswc_common-6505a29266c2a928.rmeta --extern swc_ecma_ast=/opt/rustwide/target/debug/deps/libswc_ecma_ast-b13b17672a8a603e.rmeta --extern swc_ecma_parser=/opt/rustwide/target/debug/deps/libswc_ecma_parser-01a6aece60237a0d.rmeta --extern swc_ecma_transforms_macros=/opt/rustwide/target/debug/deps/libswc_ecma_transforms_macros-69dd12146d1ed312.so --extern swc_ecma_utils=/opt/rustwide/target/debug/deps/libswc_ecma_utils-78fc84ce9f19edda.rmeta --extern swc_ecma_visit=/opt/rustwide/target/debug/deps/libswc_ecma_visit-fa24c4bd39337f44.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-5ee0227a60781e0f.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "c7fbc58ee7e83394d047ee0087850b2dbf50b0cf2dd3425182f073b121d80386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7fbc58ee7e83394d047ee0087850b2dbf50b0cf2dd3425182f073b121d80386", kill_on_drop: false }`
[INFO] [stdout] c7fbc58ee7e83394d047ee0087850b2dbf50b0cf2dd3425182f073b121d80386