[INFO] cloning repository https://github.com/mercode-org/fireframe
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mercode-org/fireframe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmercode-org%2Ffireframe", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmercode-org%2Ffireframe'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9747177939f8de29e4826880476475b8de763465
[INFO] checking mercode-org/fireframe against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmercode-org%2Ffireframe" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mercode-org/fireframe on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mercode-org/fireframe
[INFO] finished tweaking git repo https://github.com/mercode-org/fireframe
[INFO] tweaked toml for git repo https://github.com/mercode-org/fireframe written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mercode-org/fireframe already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] eca42b099e237622f0ad866876b3bd7afd26d435b78c74d51d038fa2da7d125c
[INFO] running `Command { std: "docker" "start" "-a" "eca42b099e237622f0ad866876b3bd7afd26d435b78c74d51d038fa2da7d125c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eca42b099e237622f0ad866876b3bd7afd26d435b78c74d51d038fa2da7d125c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca42b099e237622f0ad866876b3bd7afd26d435b78c74d51d038fa2da7d125c", kill_on_drop: false }`
[INFO] [stdout] eca42b099e237622f0ad866876b3bd7afd26d435b78c74d51d038fa2da7d125c
[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" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9a1254a50326e435a48aea75d4756e092d690b2cca3a37db2009f31fa76cc068
[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" "9a1254a50326e435a48aea75d4756e092d690b2cca3a37db2009f31fa76cc068", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking nodrop v0.1.12
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.16
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]     Checking opaque-debug v0.2.1
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]     Checking dtoa v0.4.5
[INFO] [stderr]     Checking utf-8 v0.7.5
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking base64 v0.12.0
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking smallbitvec v2.5.0
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]    Compiling libloading v0.6.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]     Checking getopts v0.2.17
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking downcast-rs v1.1.1
[INFO] [stderr]    Compiling quick-error v1.2.1
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling bindgen v0.53.3
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling fs_extra v1.1.0
[INFO] [stderr]     Checking servo-media-traits v0.1.0 (https://github.com/servo/media#cdf82da4)
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking byte-slice-cast v0.2.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking speexdsp-resampler v0.1.0
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking atomic_refcell v0.1.6
[INFO] [stderr]     Checking signpost v0.1.0 (https://github.com/pcwalton/signpost.git#7ed71250)
[INFO] [stderr]     Checking lazycell v1.2.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling cfg_aliases v0.1.0
[INFO] [stderr]    Compiling gimli v0.22.0
[INFO] [stderr]    Compiling encoding_c v0.9.7
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]     Checking ucd v0.1.1
[INFO] [stderr]     Checking bytes v0.5.5
[INFO] [stderr]    Compiling object v0.20.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]    Compiling encoding_c_mem v0.2.6
[INFO] [stderr]     Checking futures-core v0.3.5
[INFO] [stderr]    Compiling procedural-masquerade v0.1.7
[INFO] [stderr]     Checking futures-sink v0.3.5
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking surfman-chains-api v0.2.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]     Checking binary-space-partition v0.1.2
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking float-ord v0.2.0
[INFO] [stderr]     Checking sw-composite v0.7.10
[INFO] [stderr]     Checking pin-project-lite v0.1.7
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking openssl-probe v0.1.2
[INFO] [stderr]     Checking svg_fmt v0.4.0
[INFO] [stderr]     Checking alloc-no-stdlib v2.0.1
[INFO] [stderr]     Checking tracy-rs v0.1.2
[INFO] [stderr]     Checking half v1.0.0
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking mitochondria v1.1.2
[INFO] [stderr]     Checking moite_moite v0.2.0
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]    Compiling net v0.0.1 (https://github.com/servo/servo?rev=39c3f46375f2baf33c46d92ab5c110766330a6d8#39c3f463)
[INFO] [stderr]    Compiling script_plugins v0.0.1 (https://github.com/servo/servo?rev=39c3f46375f2baf33c46d92ab5c110766330a6d8#39c3f463)
[INFO] [stderr]     Checking ref_slice v1.2.0
[INFO] [stderr]     Checking swapper v0.1.0
[INFO] [stderr]     Checking ref_filter_map v1.0.1
[INFO] [stdout] error[E0463]: can't find crate for `rustc_ast`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/git/checkouts/servo-12bfca331f128de3/39c3f46/components/script_plugins/lib.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | extern crate rustc_ast;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `script_plugins`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9a1254a50326e435a48aea75d4756e092d690b2cca3a37db2009f31fa76cc068", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a1254a50326e435a48aea75d4756e092d690b2cca3a37db2009f31fa76cc068", kill_on_drop: false }`
[INFO] [stdout] 9a1254a50326e435a48aea75d4756e092d690b2cca3a37db2009f31fa76cc068