[INFO] cloning repository https://github.com/Mautriz/discord-mauro-bot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mautriz/discord-mauro-bot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMautriz%2Fdiscord-mauro-bot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMautriz%2Fdiscord-mauro-bot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a997791a71d5d5a0c2f70a168c3f336ca1fda8cb
[INFO] checking Mautriz/discord-mauro-bot/a997791a71d5d5a0c2f70a168c3f336ca1fda8cb against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMautriz%2Fdiscord-mauro-bot" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mautriz/discord-mauro-bot on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mautriz/discord-mauro-bot
[INFO] finished tweaking git repo https://github.com/Mautriz/discord-mauro-bot
[INFO] tweaked toml for git repo https://github.com/Mautriz/discord-mauro-bot written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Mautriz/discord-mauro-bot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6a82f7ef410a110e80b9e8670162e7b2bc4b0b6c610ecc2b336a95b46b971172
[INFO] running `Command { std: "docker" "start" "-a" "6a82f7ef410a110e80b9e8670162e7b2bc4b0b6c610ecc2b336a95b46b971172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6a82f7ef410a110e80b9e8670162e7b2bc4b0b6c610ecc2b336a95b46b971172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a82f7ef410a110e80b9e8670162e7b2bc4b0b6c610ecc2b336a95b46b971172", kill_on_drop: false }`
[INFO] [stdout] 6a82f7ef410a110e80b9e8670162e7b2bc4b0b6c610ecc2b336a95b46b971172
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da234a304e787b94c403981ff81e028aac1dae0c2e480dbfea07e882e02dd3da
[INFO] running `Command { std: "docker" "start" "-a" "da234a304e787b94c403981ff81e028aac1dae0c2e480dbfea07e882e02dd3da", kill_on_drop: false }`
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[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking cpufeatures v0.1.4
[INFO] [stderr]     Checking opaque-debug v0.3.0
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[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stdout] error[E0310]: the parameter type `T` may not live long enough
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/rustc-serialize-0.3.24/src/serialize.rs:1155:5
[INFO] [stdout]      |
[INFO] [stdout] 1155 |     fn decode<D: Decoder>(d: &mut D) -> Result<Cow<'static, T>, D::Error> {
[INFO] [stdout]      |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |     |
[INFO] [stdout]      |     the parameter type `T` must be valid for the static lifetime...
[INFO] [stdout]      |     ...so that the type `T` will meet its required lifetime bounds...
[INFO] [stdout]      |
[INFO] [stdout] note: ...that is required by this bound
[INFO] [stdout]     --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/borrow.rs:179:30
[INFO] [stdout] help: consider adding an explicit lifetime bound
[INFO] [stdout]      |
[INFO] [stdout] 1151 | impl<'a, T: ?Sized + 'static> Decodable for Cow<'a, T>
[INFO] [stdout]      |                    +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling libsqlite3-sys v0.22.2
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling whoami v1.1.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking sha-1 v0.9.6
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0310`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustc-serialize` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "da234a304e787b94c403981ff81e028aac1dae0c2e480dbfea07e882e02dd3da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da234a304e787b94c403981ff81e028aac1dae0c2e480dbfea07e882e02dd3da", kill_on_drop: false }`
[INFO] [stdout] da234a304e787b94c403981ff81e028aac1dae0c2e480dbfea07e882e02dd3da