[INFO] cloning repository https://github.com/Atte/discord-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Atte/discord-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtte%2Fdiscord-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtte%2Fdiscord-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92777dc5510d1b5442a2646d8b78acb763aab677
[INFO] checking Atte/discord-bot against 1.55.0 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAtte%2Fdiscord-bot" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Atte/discord-bot on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Atte/discord-bot
[INFO] finished tweaking git repo https://github.com/Atte/discord-bot
[INFO] tweaked toml for git repo https://github.com/Atte/discord-bot written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/Atte/discord-bot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded includedir_codegen v0.6.0
[INFO] [stderr]   Downloaded mock_instant v0.2.1
[INFO] [stderr]   Downloaded no-std-compat v0.4.1
[INFO] [stderr]   Downloaded nonzero_ext v0.2.0
[INFO] [stderr]   Downloaded governor v0.3.2
[INFO] [stderr]   Downloaded crypto-mac v0.10.1
[INFO] [stderr]   Downloaded async-compression v0.3.8
[INFO] [stderr]   Downloaded uwl v0.6.0
[INFO] [stderr]   Downloaded ctr v0.6.0
[INFO] [stderr]   Downloaded aes-gcm v0.8.0
[INFO] [stderr]   Downloaded hkdf v0.10.0
[INFO] [stderr]   Downloaded siphasher v0.3.7
[INFO] [stderr]   Downloaded aes-soft v0.6.4
[INFO] [stderr]   Downloaded darling_macro v0.13.0
[INFO] [stderr]   Downloaded serde_with_macros v1.5.0
[INFO] [stderr]   Downloaded darling v0.13.0
[INFO] [stderr]   Downloaded darling_core v0.13.0
[INFO] [stderr]   Downloaded typed-builder v0.9.1
[INFO] [stderr]   Downloaded mongodb v2.0.0
[INFO] [stderr]   Downloaded aes v0.6.0
[INFO] [stderr]   Downloaded async-tungstenite v0.11.0
[INFO] [stderr]   Downloaded serde-aux v2.3.0
[INFO] [stderr]   Downloaded meval v0.2.0
[INFO] [stderr]   Downloaded tabwriter v1.2.1
[INFO] [stderr]   Downloaded serde_with v1.10.0
[INFO] [stderr]   Downloaded nonzero_ext v0.3.0
[INFO] [stderr]   Downloaded oauth2 v4.1.0
[INFO] [stderr]   Downloaded command_attr v0.3.7
[INFO] [stderr]   Downloaded serde_path_to_error v0.1.5
[INFO] [stderr]   Downloaded aesni v0.10.0
[INFO] [stderr]   Downloaded serenity v0.10.9
[INFO] [stderr]   Downloaded sha2 v0.9.8
[INFO] [stderr]   Downloaded quanta v0.4.1
[INFO] [stderr]   Downloaded includedir v0.6.0
[INFO] [stderr]   Downloaded bson v2.0.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.16
[INFO] [stderr]   Downloaded md-5 v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e8ef3ba8d6948ce7e93dd4f0864b1f5e37bcea3db0296f6c5a234e85235b562c
[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" "e8ef3ba8d6948ce7e93dd4f0864b1f5e37bcea3db0296f6c5a234e85235b562c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8ef3ba8d6948ce7e93dd4f0864b1f5e37bcea3db0296f6c5a234e85235b562c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8ef3ba8d6948ce7e93dd4f0864b1f5e37bcea3db0296f6c5a234e85235b562c", kill_on_drop: false }`
[INFO] [stdout] e8ef3ba8d6948ce7e93dd4f0864b1f5e37bcea3db0296f6c5a234e85235b562c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--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] 561d5c863fb2f9f176295cae30840d528fab86f78bde82087d93ff65d066682f
[INFO] running `Command { std: "docker" "start" "-a" "561d5c863fb2f9f176295cae30840d528fab86f78bde82087d93ff65d066682f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.44
[INFO] [stderr]    Compiling serenity v0.10.9
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking nonzero_ext v0.3.0
[INFO] [stderr]     Checking mock_instant v0.2.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking input_buffer v0.3.1
[INFO] [stderr]     Checking tabwriter v1.2.1
[INFO] [stderr]     Checking meval v0.2.0
[INFO] [stderr]     Checking os_info v3.0.7
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking stringprep v0.1.2
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]     Checking conv v0.3.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.61
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking resolv-conf v0.7.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking ahash v0.7.4
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking tungstenite v0.11.1
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]     Checking webpki-roots v0.21.1
[INFO] [stderr]     Checking webpki-roots v0.20.0
[INFO] [stderr]    Compiling includedir_codegen v0.6.0
[INFO] [stderr]    Compiling discord-bot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling darling_core v0.13.0
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling tracing-attributes v0.1.16
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling typed-builder v0.9.1
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling command_attr v0.3.7
[INFO] [stderr]    Compiling darling_macro v0.13.0
[INFO] [stderr]     Checking tokio v1.12.0
[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-1.0.130/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=19b97e288db6bfc0 -C extra-filename=-19b97e288db6bfc0 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-06e97d6f0dfb172f.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-1b457121b46aa6b0.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-a3409ec393e89137.rlib --extern proc_macro --cap-lints allow --cap-lints=warn --cfg underscore_consts --cfg ptr_addr_of` (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" "561d5c863fb2f9f176295cae30840d528fab86f78bde82087d93ff65d066682f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561d5c863fb2f9f176295cae30840d528fab86f78bde82087d93ff65d066682f", kill_on_drop: false }`
[INFO] [stdout] 561d5c863fb2f9f176295cae30840d528fab86f78bde82087d93ff65d066682f