[INFO] cloning repository https://github.com/0xJepsen/matchmaker-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xJepsen/matchmaker-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xJepsen%2Fmatchmaker-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xJepsen%2Fmatchmaker-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8f4249ef7f2fbdc21312acdb12ce797546652383
[INFO] checking 0xJepsen/matchmaker-rs against master#8b6b15b877fbceb1ee5d9a5a4746e7515901574a for pr-147294
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xJepsen%2Fmatchmaker-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/0xJepsen/matchmaker-rs
[INFO] finished tweaking git repo https://github.com/0xJepsen/matchmaker-rs
[INFO] tweaked toml for git repo https://github.com/0xJepsen/matchmaker-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/0xJepsen/matchmaker-rs on toolchain 8b6b15b877fbceb1ee5d9a5a4746e7515901574a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/0xJepsen/matchmaker-rs 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" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1454b3d4c89d963275375d4ddf298c1ad515c79cf0be74e3b15d6a74e4365e49
[INFO] running `Command { std: "docker" "start" "-a" "1454b3d4c89d963275375d4ddf298c1ad515c79cf0be74e3b15d6a74e4365e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1454b3d4c89d963275375d4ddf298c1ad515c79cf0be74e3b15d6a74e4365e49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1454b3d4c89d963275375d4ddf298c1ad515c79cf0be74e3b15d6a74e4365e49", kill_on_drop: false }`
[INFO] [stdout] 1454b3d4c89d963275375d4ddf298c1ad515c79cf0be74e3b15d6a74e4365e49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+8b6b15b877fbceb1ee5d9a5a4746e7515901574a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e178e7aeb6b1ccc752432d3d8ec544674852dbe4d322e9b0e63c2559564dd6e4
[INFO] running `Command { std: "docker" "start" "-a" "e178e7aeb6b1ccc752432d3d8ec544674852dbe4d322e9b0e63c2559564dd6e4", kill_on_drop: false }`
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[INFO] [stderr]     Checking httpdate v1.0.2
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking idna v0.4.0
[INFO] [stderr]    Compiling async-trait v0.1.68
[INFO] [stderr]     Checking regex v1.8.4
[INFO] [stderr]     Checking bs58 v0.4.0
[INFO] [stderr]     Checking rustls-pemfile v1.0.2
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]    Compiling indenter v0.3.3
[INFO] [stderr]     Checking url v2.4.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.86
[INFO] [stderr]     Checking rustls-webpki v0.100.2
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking webpki v0.22.2
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/bin/rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-1.0.109/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=220f33fccc4a1a9b -C extra-filename=-826d2936caa7394d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1bf040fcc5cd60fd.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f7daad9b4910fce3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6984f38657b6eff3.rmeta --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 `syn` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/8b6b15b877fbceb1ee5d9a5a4746e7515901574a/bin/rustc --crate-name syn --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/syn-2.0.18/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 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' --cfg 'feature="visit-mut"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("clone-impls", "default", "derive", "extra-traits", "fold", "full", "parsing", "printing", "proc-macro", "quote", "test", "visit", "visit-mut"))' -C metadata=5ba8c83bfdf4ac8d -C extra-filename=-7b0880ae0f04d476 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-1bf040fcc5cd60fd.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-f7daad9b4910fce3.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-6984f38657b6eff3.rmeta --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "e178e7aeb6b1ccc752432d3d8ec544674852dbe4d322e9b0e63c2559564dd6e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e178e7aeb6b1ccc752432d3d8ec544674852dbe4d322e9b0e63c2559564dd6e4", kill_on_drop: false }`
[INFO] [stdout] e178e7aeb6b1ccc752432d3d8ec544674852dbe4d322e9b0e63c2559564dd6e4
