[INFO] cloning repository https://github.com/couchbaselabs/couchbase-shell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/couchbaselabs/couchbase-shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcouchbaselabs%2Fcouchbase-shell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcouchbaselabs%2Fcouchbase-shell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 326fe13623f945fc0cba5d507263adca7c466338
[INFO] testing couchbaselabs/couchbase-shell against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcouchbaselabs%2Fcouchbase-shell" "/workspace/builds/worker-106/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'...
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[INFO] validating manifest of git repo https://github.com/couchbaselabs/couchbase-shell on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/couchbaselabs/couchbase-shell
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/couchbaselabs/couchbase-shell
[INFO] tweaked toml for git repo https://github.com/couchbaselabs/couchbase-shell written to /workspace/builds/worker-106/source/Cargo.toml
[INFO] crate git repo https://github.com/couchbaselabs/couchbase-shell already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/nushell/nushell`
[INFO] [stderr]     Updating git repository `https://github.com/nushell/reedline`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cstr_core v0.2.4
[INFO] [stderr]   Downloaded typetag-impl v0.1.8
[INFO] [stderr]   Downloaded cty v0.2.1
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[INFO] [stderr]   Downloaded libnghttp2-sys v0.1.6+1.43.0
[INFO] [stderr]   Downloaded nu-ansi-term v0.42.0
[INFO] [stderr]   Downloaded windows_gen v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0d986adf40e3eb18430782fb419b717456fb800256c3d06d3d0221d56a39ab4
[INFO] running `Command { std: "docker" "start" "-a" "e0d986adf40e3eb18430782fb419b717456fb800256c3d06d3d0221d56a39ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0d986adf40e3eb18430782fb419b717456fb800256c3d06d3d0221d56a39ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0d986adf40e3eb18430782fb419b717456fb800256c3d06d3d0221d56a39ab4", kill_on_drop: false }`
[INFO] [stdout] e0d986adf40e3eb18430782fb419b717456fb800256c3d06d3d0221d56a39ab4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4b3580e921f644e9611b6a07484bc692c1a49ad223d3c8496e449a53fcb7fec
[INFO] running `Command { std: "docker" "start" "-a" "f4b3580e921f644e9611b6a07484bc692c1a49ad223d3c8496e449a53fcb7fec", kill_on_drop: false }`
[INFO] [stderr] warning: couchbase-shell v1.0.0-beta.4-dev (/opt/rustwide/workdir) ignoring invalid dependency `nu` which is missing a lib target
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling futures-core v0.3.16
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling futures-io v0.3.16
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling futures-channel v0.3.16
[INFO] [stderr]    Compiling futures-sink v0.3.16
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling futures-task v0.3.16
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling matches v0.1.8
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling async-trait v0.1.51
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling alloc-no-stdlib v2.0.3
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling erased-serde v0.3.18
[INFO] [stderr]    Compiling zstd-safe v4.1.1+zstd.1.5.0
[INFO] [stderr]    Compiling gimli v0.25.0
[INFO] [stderr]    Compiling snap v1.0.5
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling nodrop v0.1.14
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling is_ci v1.1.1
[INFO] [stderr]    Compiling cty v0.2.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling utf8-width v0.1.5
[INFO] [stderr]    Compiling fallible-streaming-iterator v0.1.9
[INFO] [stderr]    Compiling owo-colors v3.2.0
[INFO] [stderr]    Compiling array-init-cursor v0.2.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling cache-padded v1.1.1
[INFO] [stderr]    Compiling fastrand v1.5.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling hash_hasher v2.0.3
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]    Compiling waker-fn v1.1.0
[INFO] [stderr]    Compiling encoding_rs v0.8.30
[INFO] [stderr]    Compiling anyhow v1.0.42
[INFO] [stderr]    Compiling parking_lot_core v0.9.1
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling parking v2.0.0
[INFO] [stderr]    Compiling simdutf8 v0.1.3
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling heapless v0.5.6
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling event-listener v2.5.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling streaming-iterator v0.1.5
[INFO] [stderr]    Compiling openssl v0.10.35
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling cpufeatures v0.1.5
[INFO] [stderr]    Compiling io-lifetimes v0.5.3
[INFO] [stderr]    Compiling foreign-types-shared v0.1.1
[INFO] [stderr]    Compiling overload v0.1.1
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling native-tls v0.2.7
[INFO] [stderr]    Compiling nu-glob v0.59.1 (https://github.com/nushell/nushell?rev=1a16b9a2c4d3cb263fa5f0a11a4d41210f2cd300#1a16b9a2)
[INFO] [stderr]    Compiling rustix v0.33.3
[INFO] [stderr]    Compiling encode_unicode v0.3.6
[INFO] [stderr]    Compiling ipnet v2.3.1
[INFO] [stderr]    Compiling cpuid-bool v0.2.0
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling linux-raw-sys v0.0.42
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unsafe_unwrap v0.1.0
[INFO] [stderr]    Compiling const-sha1 v0.2.0
[INFO] [stderr]    Compiling async-task v4.0.3
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling is_debug v1.0.1
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling unic-common v0.9.0
[INFO] [stderr]    Compiling mime v0.3.16
[INFO] [stderr]    Compiling atomic-waker v1.0.0
[INFO] [stderr]    Compiling tower-service v0.3.1
[INFO] [stderr]    Compiling unic-char-range v0.9.0
[INFO] [stderr]    Compiling capnp v0.14.5
[INFO] [stderr]    Compiling strum v0.23.0
[INFO] [stderr]    Compiling match_cfg v0.1.0
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-1.0.74/build.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type bin --emit=dep-info,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"' --cfg 'feature="visit-mut"' -C metadata=37829a5f8ebb1f54 -C extra-filename=-37829a5f8ebb1f54 --out-dir /opt/rustwide/target/debug/build/syn-37829a5f8ebb1f54 -L dependency=/opt/rustwide/target/debug/deps --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" "f4b3580e921f644e9611b6a07484bc692c1a49ad223d3c8496e449a53fcb7fec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4b3580e921f644e9611b6a07484bc692c1a49ad223d3c8496e449a53fcb7fec", kill_on_drop: false }`
[INFO] [stdout] f4b3580e921f644e9611b6a07484bc692c1a49ad223d3c8496e449a53fcb7fec