[INFO] fetching crate knope 0.2.0...
[INFO] testing knope-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate knope 0.2.0 into /workspace/builds/worker-115/source
[INFO] validating manifest of crates.io crate knope 0.2.0 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 crates.io crate knope 0.2.0
[INFO] finished tweaking crates.io crate knope 0.2.0
[INFO] tweaked toml for crates.io crate knope 0.2.0 written to /workspace/builds/worker-115/source/Cargo.toml
[INFO] crate crates.io crate knope 0.2.0 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]  Downloading crates ...
[INFO] [stderr]   Downloaded velcro_macros v0.5.2
[INFO] [stderr]   Downloaded snapbox-macros v0.2.1
[INFO] [stderr]   Downloaded concolor-query v0.0.5
[INFO] [stderr]   Downloaded concolor v0.0.8
[INFO] [stderr]   Downloaded velcro_core v0.5.2
[INFO] [stderr]   Downloaded snapbox v0.2.9
[INFO] [stderr]   Downloaded dirs-next v1.0.2
[INFO] [stderr]   Downloaded miette-derive v4.2.1
[INFO] [stderr]   Downloaded execute-command-macro v0.1.7
[INFO] [stderr]   Downloaded git2 v0.14.2
[INFO] [stderr]   Downloaded execute v0.2.10
[INFO] [stderr]   Downloaded git-conventional v0.11.2
[INFO] [stderr]   Downloaded miette v4.2.1
[INFO] [stderr]   Downloaded execute-command-macro-impl v0.1.7
[INFO] [stderr]   Downloaded velcro v0.5.3
[INFO] [stderr]   Downloaded execute-command-tokens v0.1.5
[INFO] [stderr]   Downloaded libssh2-sys v0.2.23
[INFO] [stderr]   Downloaded libgit2-sys v0.13.2+1.4.2
[INFO] [stderr]   Downloaded platform-dirs v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 4250753dbca144882eacd029aa022a2b40ab39677c1e407a0e67fa4e47bcdc58
[INFO] running `Command { std: "docker" "start" "-a" "4250753dbca144882eacd029aa022a2b40ab39677c1e407a0e67fa4e47bcdc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4250753dbca144882eacd029aa022a2b40ab39677c1e407a0e67fa4e47bcdc58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4250753dbca144882eacd029aa022a2b40ab39677c1e407a0e67fa4e47bcdc58", kill_on_drop: false }`
[INFO] [stdout] 4250753dbca144882eacd029aa022a2b40ab39677c1e407a0e67fa4e47bcdc58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-115/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] 6aef666e82d991f959ebeeed0432d15bc9ce11eec07bf5330435789bafbb178d
[INFO] running `Command { std: "docker" "start" "-a" "6aef666e82d991f959ebeeed0432d15bc9ce11eec07bf5330435789bafbb178d", 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 libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling execute-command-tokens v0.1.5
[INFO] [stderr]    Compiling rustls v0.20.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling is_ci v1.1.1
[INFO] [stderr]    Compiling semver v1.0.6
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling fastrand v1.7.0
[INFO] [stderr]    Compiling chunked_transfer v1.4.0
[INFO] [stderr]    Compiling bytes v1.1.0
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling owo-colors v3.2.0
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling zeroize v1.5.3
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling idna v0.2.3
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling http v0.2.6
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling url v2.2.2
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling tempfile v3.3.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling supports-unicode v1.0.2
[INFO] [stderr]    Compiling supports-color v1.3.0
[INFO] [stderr]    Compiling supports-hyperlinks v1.2.0
[INFO] [stderr]    Compiling dirs-next v1.0.2
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling platform-dirs v0.3.0
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling dialoguer v0.10.0
[INFO] [stderr]    Compiling git-conventional v0.11.2
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling libz-sys v1.1.5
[INFO] [stderr]    Compiling openssl-sys v0.9.72
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.13.2+1.4.2
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]    Compiling velcro_core v0.5.2
[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-1.0.86/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="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' -C metadata=cf92d0163b7d6099 -C extra-filename=-cf92d0163b7d6099 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-d0e4c723ecad0f39.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-3df76aa48d62b863.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-d8167d72773bee47.rmeta --cap-lints allow --cap-lints=warn --cfg syn_disable_nightly_tests` (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" "6aef666e82d991f959ebeeed0432d15bc9ce11eec07bf5330435789bafbb178d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6aef666e82d991f959ebeeed0432d15bc9ce11eec07bf5330435789bafbb178d", kill_on_drop: false }`
[INFO] [stdout] 6aef666e82d991f959ebeeed0432d15bc9ce11eec07bf5330435789bafbb178d