[INFO] crate webcord 0.0.0 is already in cache
[INFO] checking webcord-0.0.0 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] extracting crate webcord 0.0.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate webcord 0.0.0 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate webcord 0.0.0
[INFO] finished tweaking crates.io crate webcord 0.0.0
[INFO] tweaked toml for crates.io crate webcord 0.0.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate webcord 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1f7739812de0fbe3ac232c64e5a0c970349f3c00dc63cb2cf6cf47ec386d21a7
[INFO] running `"docker" "start" "-a" "1f7739812de0fbe3ac232c64e5a0c970349f3c00dc63cb2cf6cf47ec386d21a7"`
[INFO] [stderr]    Compiling v_htmlescape v0.4.5
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling serenity v0.7.3
[INFO] [stderr]     Checking uwl v0.4.2
[INFO] [stderr]    Compiling ring v0.16.9
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking bytestring v0.1.1
[INFO] [stderr]     Checking http v0.2.0
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking input_buffer v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking serde-hjson v0.9.1
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]     Checking tokio v0.2.4
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking tungstenite v0.9.2
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking nom v5.0.1
[INFO] [stderr]     Checking webpki v0.21.0
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking ct-logs v0.6.0
[INFO] [stderr]     Checking tokio-util v0.2.0
[INFO] [stderr]     Checking rustls v0.16.0
[INFO] [stderr]     Checking webpki-roots v0.17.0
[INFO] [stderr]     Checking actix-codec v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]     Checking tokio-rustls v0.10.2
[INFO] [stderr]     Checking hyper-rustls v0.17.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling actix-macros v0.1.0
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling async-trait v0.1.21
[INFO] [stderr]    Compiling v_escape_derive v0.5.6
[INFO] [stderr]    Compiling actix-web-codegen v0.2.0-alpha.2
[INFO] [stderr]    Compiling dirmod-codegen v0.2.0-alpha.1
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling command_attr v0.1.5
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr] error: could not compile `async-trait`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name async_trait --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/async-trait-0.1.21/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C debuginfo=2 -C metadata=c8b75a907b5ff6ff -C extra-filename=-c8b75a907b5ff6ff --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e6d13cf8f5fd2615.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-ffa9376cfddbe96d.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-bcbfd7f5338b5a3b.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `serde_derive`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.103/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C debuginfo=2 --cfg 'feature="default"' -C metadata=de798f97db1501c5 -C extra-filename=-de798f97db1501c5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-e6d13cf8f5fd2615.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-ffa9376cfddbe96d.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-bcbfd7f5338b5a3b.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1f7739812de0fbe3ac232c64e5a0c970349f3c00dc63cb2cf6cf47ec386d21a7"`
[INFO] running `"docker" "rm" "-f" "1f7739812de0fbe3ac232c64e5a0c970349f3c00dc63cb2cf6cf47ec386d21a7"`
[INFO] [stdout] 1f7739812de0fbe3ac232c64e5a0c970349f3c00dc63cb2cf6cf47ec386d21a7