[INFO] fetching crate sitegen 0.0.1...
[INFO] checking sitegen-0.0.1 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate sitegen 0.0.1 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate sitegen 0.0.1 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sitegen 0.0.1
[INFO] finished tweaking crates.io crate sitegen 0.0.1
[INFO] tweaked toml for crates.io crate sitegen 0.0.1 written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2aaff90a86bbfa9c811944cdc3e4ec41bab0698aeb745d87ac6ea3955e129716
[INFO] running `Command { std: "docker" "start" "-a" "2aaff90a86bbfa9c811944cdc3e4ec41bab0698aeb745d87ac6ea3955e129716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2aaff90a86bbfa9c811944cdc3e4ec41bab0698aeb745d87ac6ea3955e129716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aaff90a86bbfa9c811944cdc3e4ec41bab0698aeb745d87ac6ea3955e129716", kill_on_drop: false }`
[INFO] [stdout] 2aaff90a86bbfa9c811944cdc3e4ec41bab0698aeb745d87ac6ea3955e129716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f6f460f2327541d3f70c9951d718f248a414c363ed68d0507f065bc030fea19c
[INFO] running `Command { std: "docker" "start" "-a" "f6f460f2327541d3f70c9951d718f248a414c363ed68d0507f065bc030fea19c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling ryu v1.0.6
[INFO] [stderr]    Compiling maplit v1.0.2
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling serde_json v1.0.72
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]    Compiling sass-sys v0.4.22
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr] error: could not compile `backtrace`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name backtrace --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.63/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="std"' -C metadata=cc7d932c2b47ef82 -C extra-filename=-cc7d932c2b47ef82 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern addr2line=/opt/rustwide/target/debug/deps/libaddr2line-2d992211af0c9876.rmeta --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-88879d2dc0fa106c.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-08274a86d5fc3725.rmeta --extern miniz_oxide=/opt/rustwide/target/debug/deps/libminiz_oxide-13a7b69395e509ba.rmeta --extern object=/opt/rustwide/target/debug/deps/libobject-c252cdf8648c9e41.rmeta --extern rustc_demangle=/opt/rustwide/target/debug/deps/librustc_demangle-7755103f983d2208.rmeta --cap-lints allow --cap-lints=forbid` (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" "f6f460f2327541d3f70c9951d718f248a414c363ed68d0507f065bc030fea19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6f460f2327541d3f70c9951d718f248a414c363ed68d0507f065bc030fea19c", kill_on_drop: false }`
[INFO] [stdout] f6f460f2327541d3f70c9951d718f248a414c363ed68d0507f065bc030fea19c