[INFO] fetching crate mdbook-nix-eval 1.0.1...
[INFO] testing mdbook-nix-eval-1.0.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate mdbook-nix-eval 1.0.1 into /workspace/builds/worker-101/source
[INFO] validating manifest of crates.io crate mdbook-nix-eval 1.0.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdbook-nix-eval 1.0.1
[INFO] finished tweaking crates.io crate mdbook-nix-eval 1.0.1
[INFO] tweaked toml for crates.io crate mdbook-nix-eval 1.0.1 written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate crates.io crate mdbook-nix-eval 1.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9c4f3e8146f15b37d75cd6cb9e01c44c8caa0a7c23c1965f4d19a60c65403eb3
[INFO] running `Command { std: "docker" "start" "-a" "9c4f3e8146f15b37d75cd6cb9e01c44c8caa0a7c23c1965f4d19a60c65403eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9c4f3e8146f15b37d75cd6cb9e01c44c8caa0a7c23c1965f4d19a60c65403eb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c4f3e8146f15b37d75cd6cb9e01c44c8caa0a7c23c1965f4d19a60c65403eb3", kill_on_drop: false }`
[INFO] [stdout] 9c4f3e8146f15b37d75cd6cb9e01c44c8caa0a7c23c1965f4d19a60c65403eb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d2db3542d7ef967078d047e8bbacfbb14247087df505a5c4400fef964535a87
[INFO] running `Command { std: "docker" "start" "-a" "9d2db3542d7ef967078d047e8bbacfbb14247087df505a5c4400fef964535a87", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling futures-core v0.3.13
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling futures-sink v0.3.13
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling futures-task v0.3.13
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling cpuid-bool v0.1.2
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling once_cell v1.7.2
[INFO] [stderr]    Compiling base64 v0.12.3
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.38
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling futures-io v0.3.13
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling dtoa v0.4.7
[INFO] [stderr]    Compiling strum v0.18.0
[INFO] [stderr]    Compiling urlencoding v1.1.1
[INFO] [stderr]    Compiling quick-error v2.0.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling shlex v1.0.0
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling http v0.2.3
[INFO] [stderr]    Compiling form_urlencoded v1.0.1
[INFO] [stderr]    Compiling tracing-core v0.1.17
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling gitignore v1.0.7
[INFO] [stderr]    Compiling idna v0.2.2
[INFO] [stderr]    Compiling mime_guess v2.0.3
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling futures-channel v0.3.13
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling url v2.2.1
[INFO] [stderr]    Compiling input_buffer v0.3.1
[INFO] [stderr]    Compiling tendril v0.4.2
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling headers-core v0.2.0
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling pulldown-cmark-to-cmark v6.0.0
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling socket2 v0.3.19
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling filetime v0.2.14
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling futures-macro v0.3.13
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling tracing v0.1.25
[INFO] [stderr]    Compiling sha-1 v0.9.4
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr] error: could not compile `toml`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name toml --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/toml-0.5.8/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=4bce52ca80bb76f2 -C extra-filename=-4bce52ca80bb76f2 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern serde=/opt/rustwide/target/debug/deps/libserde-d791178137df007b.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" "9d2db3542d7ef967078d047e8bbacfbb14247087df505a5c4400fef964535a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d2db3542d7ef967078d047e8bbacfbb14247087df505a5c4400fef964535a87", kill_on_drop: false }`
[INFO] [stdout] 9d2db3542d7ef967078d047e8bbacfbb14247087df505a5c4400fef964535a87