[INFO] cloning repository https://github.com/thea0032/discordapp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thea0032/discordapp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthea0032%2Fdiscordapp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthea0032%2Fdiscordapp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 893b629333b5f6cf5aa37d57da61cfd3e7fd0fc5
[INFO] checking thea0032/discordapp against try#218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa for pr-92594
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthea0032%2Fdiscordapp" "/workspace/builds/worker-38/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-38/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thea0032/discordapp on toolchain 218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thea0032/discordapp
[INFO] finished tweaking git repo https://github.com/thea0032/discordapp
[INFO] tweaked toml for git repo https://github.com/thea0032/discordapp written to /workspace/builds/worker-38/source/Cargo.toml
[INFO] crate git repo https://github.com/thea0032/discordapp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded signal-hook-mio v0.2.1
[INFO] [stderr]   Downloaded crossterm v0.20.0
[INFO] [stderr]   Downloaded crossterm_winapi v0.8.0
[INFO] [stderr]   Downloaded serenity v0.10.8
[INFO] [stderr]   Downloaded tokio v1.8.0
[INFO] [stderr]   Downloaded grid_ui v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b6e659aeaf16cb7bf36b68388d757f2334c1c3c01d69a9abc4e2b60f0f5b4fa
[INFO] running `Command { std: "docker" "start" "-a" "4b6e659aeaf16cb7bf36b68388d757f2334c1c3c01d69a9abc4e2b60f0f5b4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b6e659aeaf16cb7bf36b68388d757f2334c1c3c01d69a9abc4e2b60f0f5b4fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b6e659aeaf16cb7bf36b68388d757f2334c1c3c01d69a9abc4e2b60f0f5b4fa", kill_on_drop: false }`
[INFO] [stdout] 4b6e659aeaf16cb7bf36b68388d757f2334c1c3c01d69a9abc4e2b60f0f5b4fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-38/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+218e3b1b9f68e7a8b7fb8fcbff627c64536eebaa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da4c669e9b5997294ea59dd323c93f5a01f563d0654dc562048cc093c80bcd73
[INFO] running `Command { std: "docker" "start" "-a" "da4c669e9b5997294ea59dd323c93f5a01f563d0654dc562048cc093c80bcd73", 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] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking untrusted v0.7.1
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking cpufeatures v0.1.5
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling signal-hook v0.3.9
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]    Compiling serenity v0.10.8
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking uwl v0.6.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking typemap_rev v0.1.5
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.8.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking tracing-core v0.1.18
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking tinyvec v1.2.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr] error: could not compile `proc-macro2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name proc_macro2 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.27/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="proc-macro"' -C metadata=c22f143857bd0eb1 -C extra-filename=-c22f143857bd0eb1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.rmeta --cap-lints allow --cap-lints=forbid --cfg lexerror_display --cfg hygiene --cfg use_proc_macro --cfg wrap_proc_macro --cfg proc_macro_span` (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" "da4c669e9b5997294ea59dd323c93f5a01f563d0654dc562048cc093c80bcd73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da4c669e9b5997294ea59dd323c93f5a01f563d0654dc562048cc093c80bcd73", kill_on_drop: false }`
[INFO] [stdout] da4c669e9b5997294ea59dd323c93f5a01f563d0654dc562048cc093c80bcd73