[INFO] cloning repository https://github.com/jansc/ncgopher
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jansc/ncgopher" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6ee824379bcbd004c5e8f65027b85a871f373599
[INFO] testing jansc/ncgopher against master#159ba8a92c9e2fa4121f106176309521f4af87e9+rustflags=-Copt-level=3 for pr-107051
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jansc/ncgopher on toolchain 159ba8a92c9e2fa4121f106176309521f4af87e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jansc/ncgopher
[INFO] finished tweaking git repo https://github.com/jansc/ncgopher
[INFO] tweaked toml for git repo https://github.com/jansc/ncgopher written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jansc/ncgopher 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" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gemtext v0.2.1
[INFO] [stderr]   Downloaded linkify v0.9.0
[INFO] [stderr]   Downloaded cursive_core v0.3.2
[INFO] [stderr]   Downloaded libsqlite3-sys v0.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9572ff375977e5bedb2b08c99a838bd50cf861cd46bcb9d8d8ffe8836046cc25
[INFO] running `Command { std: "docker" "start" "-a" "9572ff375977e5bedb2b08c99a838bd50cf861cd46bcb9d8d8ffe8836046cc25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9572ff375977e5bedb2b08c99a838bd50cf861cd46bcb9d8d8ffe8836046cc25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9572ff375977e5bedb2b08c99a838bd50cf861cd46bcb9d8d8ffe8836046cc25", kill_on_drop: false }`
[INFO] [stdout] 9572ff375977e5bedb2b08c99a838bd50cf861cd46bcb9d8d8ffe8836046cc25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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@sha256:7c93e6f9a94679f34221d1005849d4c83862f85b14a264fa0883942f4d043a66" "/opt/rustwide/cargo-home/bin/cargo" "+159ba8a92c9e2fa4121f106176309521f4af87e9" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c24deb35ba933aa129b7bc3cc007d729f55c50af89994fe8a2d4e1f5ae5c8dd
[INFO] running `Command { std: "docker" "start" "-a" "6c24deb35ba933aa129b7bc3cc007d729f55c50af89994fe8a2d4e1f5ae5c8dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.104
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling once_cell v1.12.0
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling rustix v0.36.4
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling openssl v0.10.40
[INFO] [stderr]    Compiling base64 v0.13.1
[INFO] [stderr]    Compiling signal-hook v0.3.14
[INFO] [stderr]    Compiling linux-raw-sys v0.1.3
[INFO] [stderr]    Compiling oid-registry v0.6.0
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling unicode-normalization v0.1.19
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling ahash v0.8.0
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling hashbrown v0.12.2
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling idna v0.3.0
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling num-complex v0.4.1
[INFO] [stderr]    Compiling rusticata-macros v4.1.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling foreign-types v0.3.2
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.27.0
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling os_str_bytes v6.0.1
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling xi-unicode v0.3.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]    Compiling is-terminal v0.4.1
[INFO] [stderr]    Compiling clap_lex v0.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling hashlink v0.8.0
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling pem v1.1.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling object v0.30.0
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling smallvec v1.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling addr2line v0.19.0
[INFO] [stderr]    Compiling linkify v0.9.0
[INFO] [stderr]    Compiling libsqlite3-sys v0.25.0
[INFO] [stderr]    Compiling openssl-sys v0.9.73
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling backtrace v0.3.67
[INFO] [stderr]    Compiling urlencoding v2.1.2
[INFO] [stderr]    Compiling regex v1.7.1
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling base64 v0.21.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.104/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="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"' -C metadata=0cff36d9028ffeed -C extra-filename=-0cff36d9028ffeed --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-ce93c879907a70ed.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c32db7cdb6de369b.rmeta --extern unicode_ident=/opt/rustwide/target/debug/deps/libunicode_ident-0ffae4fba3cf9146.rmeta --cap-lints allow --cap-lints=forbid -Copt-level=3` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6c24deb35ba933aa129b7bc3cc007d729f55c50af89994fe8a2d4e1f5ae5c8dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c24deb35ba933aa129b7bc3cc007d729f55c50af89994fe8a2d4e1f5ae5c8dd", kill_on_drop: false }`
[INFO] [stdout] 6c24deb35ba933aa129b7bc3cc007d729f55c50af89994fe8a2d4e1f5ae5c8dd