[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] 803d29c026c020fb23c4e4c5331e9b702e0040bd
[INFO] checking jansc/ncgopher against master#1be5c8f90912c446ecbdc405cbc4a89f9acd20fd for pr-93394
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjansc%2Fncgopher" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jansc/ncgopher on toolchain 1be5c8f90912c446ecbdc405cbc4a89f9acd20fd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "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-10/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: "/workspace/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "fetch" "--manifest-path" "Cargo.toml", 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rusticata-macros v3.2.0
[INFO] [stderr]   Downloaded block-buffer v0.10.0
[INFO] [stderr]   Downloaded sha2 v0.10.1
[INFO] [stderr]   Downloaded dirs v4.0.0
[INFO] [stderr]   Downloaded pancurses v0.16.1
[INFO] [stderr]   Downloaded enum-map-derive v0.4.6
[INFO] [stderr]   Downloaded array-macro v1.0.5
[INFO] [stderr]   Downloaded cursive v0.16.3
[INFO] [stderr]   Downloaded x509-parser v0.9.2
[INFO] [stderr]   Downloaded crypto-common v0.1.0
[INFO] [stderr]   Downloaded der-parser v5.1.2
[INFO] [stderr]   Downloaded gemtext v0.2.1
[INFO] [stderr]   Downloaded oid-registry v0.1.5
[INFO] [stderr]   Downloaded wasmer_enumset_derive v0.5.0
[INFO] [stderr]   Downloaded xi-unicode v0.3.0
[INFO] [stderr]   Downloaded wasmer_enumset v1.0.1
[INFO] [stderr]   Downloaded digest v0.10.0
[INFO] [stderr]   Downloaded cursive_core v0.2.2
[INFO] [stderr]   Downloaded backtrace v0.3.63
[INFO] [stderr]   Downloaded enum-map v0.6.4
[INFO] [stderr]   Downloaded der-oid-macro v0.4.0
[INFO] [stderr]   Downloaded rusqlite v0.26.2
[INFO] [stderr]   Downloaded libsqlite3-sys v0.23.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a22f9a5a0f6c89573642d3166256e0fc224d2e56028734569641507d9a888ea2
[INFO] running `Command { std: "docker" "start" "-a" "a22f9a5a0f6c89573642d3166256e0fc224d2e56028734569641507d9a888ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a22f9a5a0f6c89573642d3166256e0fc224d2e56028734569641507d9a888ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a22f9a5a0f6c89573642d3166256e0fc224d2e56028734569641507d9a888ea2", kill_on_drop: false }`
[INFO] [stdout] a22f9a5a0f6c89573642d3166256e0fc224d2e56028734569641507d9a888ea2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1be5c8f90912c446ecbdc405cbc4a89f9acd20fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 684f1f54aa909644947a108bbde6f67453bbe31276eacdf7e049588f5e0fb6d3
[INFO] running `Command { std: "docker" "start" "-a" "684f1f54aa909644947a108bbde6f67453bbe31276eacdf7e049588f5e0fb6d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]     Checking foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling oid-registry v0.1.5
[INFO] [stderr]     Checking array-macro v1.0.5
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling signal-hook v0.3.10
[INFO] [stderr]     Checking xi-unicode v0.3.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking unicode-segmentation v1.8.0
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking data-encoding v2.3.2
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking gemtext v0.2.1
[INFO] [stderr]     Checking memchr v2.4.1
[INFO] [stderr]     Checking radium v0.5.3
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking foreign-types v0.3.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]    Compiling nom v6.1.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling ahash v0.6.3
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.2
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking bitvec v0.19.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.2
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]    Compiling ncurses v5.101.0
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.6
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking dirs v4.0.0
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling libsqlite3-sys v0.23.1
[INFO] [stderr]     Checking pancurses v0.16.1
[INFO] [stderr]     Checking pancurses v0.17.0
[INFO] [stderr]     Checking hashlink v0.7.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking block-buffer v0.10.0
[INFO] [stderr]     Checking crypto-common v0.1.0
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking digest v0.10.0
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking sha2 v0.10.1
[INFO] [stderr]     Checking num v0.3.1
[INFO] [stderr]     Checking url v2.2.2
[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-1.0.76/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"' -C metadata=d0eaf23c3e8815c5 -C extra-filename=-d0eaf23c3e8815c5 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-a9e37e1a9d2dc9b7.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-cb31b58584e17ba0.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-3c8a88541efd8c80.rmeta --cap-lints allow --cap-lints=warn` (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" "684f1f54aa909644947a108bbde6f67453bbe31276eacdf7e049588f5e0fb6d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "684f1f54aa909644947a108bbde6f67453bbe31276eacdf7e049588f5e0fb6d3", kill_on_drop: false }`
[INFO] [stdout] 684f1f54aa909644947a108bbde6f67453bbe31276eacdf7e049588f5e0fb6d3