[INFO] fetching crate knuffel 2.0.0...
[INFO] testing knuffel-2.0.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate knuffel 2.0.0 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate knuffel 2.0.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate knuffel 2.0.0
[INFO] finished tweaking crates.io crate knuffel 2.0.0
[INFO] tweaked toml for crates.io crate knuffel 2.0.0 written to /workspace/builds/worker-76/source/Cargo.toml
[INFO] crate crates.io crate knuffel 2.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 28d11f67d6c7a44b5aff821103161c0df3fbc919481360adc528703f5623aebe
[INFO] running `Command { std: "docker" "start" "-a" "28d11f67d6c7a44b5aff821103161c0df3fbc919481360adc528703f5623aebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "28d11f67d6c7a44b5aff821103161c0df3fbc919481360adc528703f5623aebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28d11f67d6c7a44b5aff821103161c0df3fbc919481360adc528703f5623aebe", kill_on_drop: false }`
[INFO] [stdout] 28d11f67d6c7a44b5aff821103161c0df3fbc919481360adc528703f5623aebe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87dbd713c1100f90414971e9f4f02ac147f28519dd01fcf706f552b7f20744dd
[INFO] running `Command { std: "docker" "start" "-a" "87dbd713c1100f90414971e9f4f02ac147f28519dd01fcf706f552b7f20744dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling chumsky v0.8.0
[INFO] [stderr]    Compiling base64 v0.13.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling miette-derive v4.3.0
[INFO] [stderr]    Compiling knuffel-derive v2.0.0
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling miette v4.3.0
[INFO] [stderr]    Compiling knuffel v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.18s
[INFO] running `Command { std: "docker" "inspect" "87dbd713c1100f90414971e9f4f02ac147f28519dd01fcf706f552b7f20744dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87dbd713c1100f90414971e9f4f02ac147f28519dd01fcf706f552b7f20744dd", kill_on_drop: false }`
[INFO] [stdout] 87dbd713c1100f90414971e9f4f02ac147f28519dd01fcf706f552b7f20744dd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 324cbb39df7b90efe042aa25d0ce26488182537accf24d16c4ed36750ca528cb
[INFO] running `Command { std: "docker" "start" "-a" "324cbb39df7b90efe042aa25d0ce26488182537accf24d16c4ed36750ca528cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling smawk v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.78
[INFO] [stderr]    Compiling is_ci v1.1.1
[INFO] [stderr]    Compiling owo-colors v3.2.0
[INFO] [stderr]    Compiling ryu v1.0.9
[INFO] [stderr]    Compiling itoa v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling object v0.27.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling backtrace v0.3.64
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling supports-unicode v1.0.2
[INFO] [stderr]    Compiling supports-hyperlinks v1.2.0
[INFO] [stderr]    Compiling supports-color v1.3.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling addr2line v0.17.0
[INFO] [stderr]    Compiling unicode-linebreak v0.1.2
[INFO] [stderr]    Compiling assert-json-diff v2.0.1
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling miette v4.3.0
[INFO] [stderr]    Compiling knuffel v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `knuffel`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name knuffel --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --cfg 'feature="base64"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="knuffel-derive"' --cfg 'feature="line-numbers"' --cfg 'feature="unicode-width"' -C metadata=97933603ec8a45b1 -C extra-filename=-97933603ec8a45b1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern assert_json_diff=/opt/rustwide/target/debug/deps/libassert_json_diff-872429bfdbc5a040.rlib --extern base64=/opt/rustwide/target/debug/deps/libbase64-bff61f2d1660603b.rlib --extern chumsky=/opt/rustwide/target/debug/deps/libchumsky-d202685b1167bcad.rlib --extern knuffel_derive=/opt/rustwide/target/debug/deps/libknuffel_derive-83d05305c3ade71e.so --extern miette=/opt/rustwide/target/debug/deps/libmiette-5f4c101582b38953.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-753a3a42ef1e89d6.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-c0973379da73234e.rlib --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-6ef757d3f1052dbb.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `knuffel`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name simple --edition=2021 examples/simple.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="base64"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="knuffel-derive"' --cfg 'feature="line-numbers"' --cfg 'feature="unicode-width"' -C metadata=a022b1f4c67fcade -C extra-filename=-a022b1f4c67fcade --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern assert_json_diff=/opt/rustwide/target/debug/deps/libassert_json_diff-872429bfdbc5a040.rlib --extern base64=/opt/rustwide/target/debug/deps/libbase64-bff61f2d1660603b.rlib --extern chumsky=/opt/rustwide/target/debug/deps/libchumsky-d202685b1167bcad.rlib --extern knuffel=/opt/rustwide/target/debug/deps/libknuffel-513528b880a0e626.rlib --extern knuffel_derive=/opt/rustwide/target/debug/deps/libknuffel_derive-83d05305c3ade71e.so --extern miette=/opt/rustwide/target/debug/deps/libmiette-5f4c101582b38953.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-753a3a42ef1e89d6.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-c0973379da73234e.rlib --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-6ef757d3f1052dbb.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "324cbb39df7b90efe042aa25d0ce26488182537accf24d16c4ed36750ca528cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324cbb39df7b90efe042aa25d0ce26488182537accf24d16c4ed36750ca528cb", kill_on_drop: false }`
[INFO] [stdout] 324cbb39df7b90efe042aa25d0ce26488182537accf24d16c4ed36750ca528cb