[INFO] cloning repository https://github.com/approvers/MeigenBot-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/approvers/MeigenBot-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2FMeigenBot-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2FMeigenBot-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a6e4be4fcffa21a83026004c38a44daf7b4d0bac
[INFO] checking approvers/MeigenBot-Rust against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapprovers%2FMeigenBot-Rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/approvers/MeigenBot-Rust on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/approvers/MeigenBot-Rust
[INFO] finished tweaking git repo https://github.com/approvers/MeigenBot-Rust
[INFO] tweaked toml for git repo https://github.com/approvers/MeigenBot-Rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/approvers/MeigenBot-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/serenity-rs/serenity`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded async-tungstenite v0.8.0
[INFO] [stderr]   Downloaded enum-as-inner v0.3.3
[INFO] [stderr]   Downloaded async-tls v0.9.0
[INFO] [stderr]   Downloaded os_info v2.0.8
[INFO] [stderr]   Downloaded typemap_rev v0.1.3
[INFO] [stderr]   Downloaded warp v0.2.4
[INFO] [stderr]   Downloaded tracing-futures v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0151d4842b91f6cbf21f5356f5c982d02e7c6133c1185d96f91353496e5c7c0e
[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" "0151d4842b91f6cbf21f5356f5c982d02e7c6133c1185d96f91353496e5c7c0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0151d4842b91f6cbf21f5356f5c982d02e7c6133c1185d96f91353496e5c7c0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0151d4842b91f6cbf21f5356f5c982d02e7c6133c1185d96f91353496e5c7c0e", kill_on_drop: false }`
[INFO] [stdout] 0151d4842b91f6cbf21f5356f5c982d02e7c6133c1185d96f91353496e5c7c0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 536ca43a7678ba44f77f4d2050b39dbb20a76913c98c18c3c28f1c45955c4d5e
[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" "536ca43a7678ba44f77f4d2050b39dbb20a76913c98c18c3c28f1c45955c4d5e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling syn v1.0.38
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking base64 v0.11.0
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]    Compiling serenity v0.9.0-rc.0 (https://github.com/serenity-rs/serenity?branch=next#b414f297)
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking typemap_rev v0.1.3
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking http v0.2.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ring v0.16.15
[INFO] [stderr]     Checking futures-channel v0.3.5
[INFO] [stderr]     Checking lru-cache v0.1.2
[INFO] [stderr]     Checking tracing-core v0.1.14
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking encoding_rs v0.8.23
[INFO] [stderr]     Checking crc32fast v1.2.0
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking socket2 v0.3.12
[INFO] [stderr]     Checking backtrace v0.3.50
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking flate2 v1.0.16
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking os_info v2.0.8
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking resolv-conf v0.6.3
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking http-body v0.3.1
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking hmac v0.7.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking headers v0.3.2
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]     Checking tungstenite v0.10.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking rustls v0.18.0
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking multipart v0.16.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]    Compiling async-trait v0.1.36
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling readonly v0.1.6
[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-0.1.36/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -Cembed-bitcode=no -C debuginfo=2 -C metadata=74786899bced52ae -C extra-filename=-74786899bced52ae --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-71c5aa24984e0547.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-86659819dd43cd20.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-064f6729d05b5dbe.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 `Command { std: "docker" "inspect" "536ca43a7678ba44f77f4d2050b39dbb20a76913c98c18c3c28f1c45955c4d5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "536ca43a7678ba44f77f4d2050b39dbb20a76913c98c18c3c28f1c45955c4d5e", kill_on_drop: false }`
[INFO] [stdout] 536ca43a7678ba44f77f4d2050b39dbb20a76913c98c18c3c28f1c45955c4d5e
