[INFO] fetching crate cnfgen 0.7.0...
[INFO] checking cnfgen-0.7.0 against a621e2b446eafb53c7a8569f225e0b8cc2429a68 for pr-162600
[INFO] extracting crate cnfgen 0.7.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate cnfgen 0.7.0
[INFO] finished tweaking crates.io crate cnfgen 0.7.0
[INFO] tweaked toml for crates.io crate cnfgen 0.7.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cnfgen 0.7.0 on toolchain a621e2b446eafb53c7a8569f225e0b8cc2429a68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cnfgen 0.7.0 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" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `cnfgen` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995
[INFO] running `Command { std: "docker" "start" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: explicit `package.readme` can be inferred
[INFO] [stderr]   --> Cargo.toml:29:1
[INFO] [stderr]    |
[INFO] [stderr] 29 | readme = "README.md"
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::manual_readme` is set to `warn` by default
[INFO] [stderr] help: consider removing `package.readme`
[INFO] [stderr] warning: `cnfgen` (manifest) generated 1 warning
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking itoap v1.0.1
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.33
[INFO] [stderr]     Checking thiserror v1.0.33
[INFO] [stderr]     Checking cnfgen v0.7.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `cnfgen` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/a621e2b446eafb53c7a8569f225e0b8cc2429a68/bin/rustc --crate-name cnfgen --edition=2021 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat,unused-externs-silent --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=b7ad4e8d55dca925 -C extra-filename=-953f166f1142cd7c --out-dir /opt/rustwide/target/debug/build/cnfgen/953f166f1142cd7c/out -L dependency=/opt/rustwide/target/debug/build/thiserror-impl/5d0fad5497b0bb3b/out -L dependency=/opt/rustwide/target/debug/build/typenum/c8aa4bd6375c23ad/out --extern generic_array=/opt/rustwide/target/debug/build/generic-array/18f55a6472f8cf5a/out/libgeneric_array-18f55a6472f8cf5a.rmeta --extern itoap=/opt/rustwide/target/debug/build/itoap/ea15dffda2af9262/out/libitoap-ea15dffda2af9262.rmeta --extern thiserror=/opt/rustwide/target/debug/build/thiserror/b02d70ec8ddf6f49/out/libthiserror-b02d70ec8ddf6f49.rmeta --cap-lints=forbid --force-warn=unused_crate_dependencies` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995", kill_on_drop: false }`
[INFO] [stdout] c224eb3da2ac948f616ce8870d3057d5957aaa70aeff73b06b3cdf70127f5995
