[INFO] fetching crate mkbook 0.3.0...
[INFO] checking mkbook-0.3.0 against master#01af5040fdada6ef8f1b749cda798d80a8590b2c for pr-84022
[INFO] extracting crate mkbook 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mkbook 0.3.0 on toolchain 01af5040fdada6ef8f1b749cda798d80a8590b2c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+01af5040fdada6ef8f1b749cda798d80a8590b2c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mkbook 0.3.0
[INFO] finished tweaking crates.io crate mkbook 0.3.0
[INFO] tweaked toml for crates.io crate mkbook 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate mkbook 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+01af5040fdada6ef8f1b749cda798d80a8590b2c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded askama v0.8.0
[INFO] [stderr]   Downloaded ws v0.9.1
[INFO] [stderr]   Downloaded plist v0.4.2
[INFO] [stderr]   Downloaded askama_derive v0.8.0
[INFO] [stderr]   Downloaded sha-1 v0.8.1
[INFO] [stderr]   Downloaded sass-rs v0.2.2
[INFO] [stderr]   Downloaded bincode v1.2.0
[INFO] [stderr]   Downloaded notify v4.0.14
[INFO] [stderr]   Downloaded entities v1.0.1
[INFO] [stderr]   Downloaded globset v0.4.4
[INFO] [stderr]   Downloaded comrak v0.6.2
[INFO] [stderr]   Downloaded colored v1.9.0
[INFO] [stderr]   Downloaded onig v5.0.0
[INFO] [stderr]   Downloaded twoway v0.2.1
[INFO] [stderr]   Downloaded askama_escape v0.2.0
[INFO] [stderr]   Downloaded askama_shared v0.8.0
[INFO] [stderr]   Downloaded ignore v0.4.10
[INFO] [stderr]   Downloaded sass-sys v0.4.15
[INFO] [stderr]   Downloaded unchecked-index v0.2.2
[INFO] [stderr]   Downloaded onig_sys v69.2.0
[INFO] [stderr]   Downloaded syntect v3.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+01af5040fdada6ef8f1b749cda798d80a8590b2c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84b29aa3bcccd5b135b0280569fe6992dcfecb3bb23bea49bfbff638855dc769
[INFO] running `Command { std: "docker" "start" "-a" "84b29aa3bcccd5b135b0280569fe6992dcfecb3bb23bea49bfbff638855dc769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84b29aa3bcccd5b135b0280569fe6992dcfecb3bb23bea49bfbff638855dc769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84b29aa3bcccd5b135b0280569fe6992dcfecb3bb23bea49bfbff638855dc769", kill_on_drop: false }`
[INFO] [stdout] 84b29aa3bcccd5b135b0280569fe6992dcfecb3bb23bea49bfbff638855dc769
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+01af5040fdada6ef8f1b749cda798d80a8590b2c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76ad2b94536c3917b59a9993cd38a3890381098a9f3d8200b008a7a08eebc39e
[INFO] running `Command { std: "docker" "start" "-a" "76ad2b94536c3917b59a9993cd38a3890381098a9f3d8200b008a7a08eebc39e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling cc v1.0.47
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling regex-syntax v0.6.12
[INFO] [stderr]    Compiling quick-error v1.2.2
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling bindgen v0.50.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling termcolor v1.0.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling sass-sys v0.4.15
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling ucd-trie v0.1.2
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]    Compiling which v2.0.1
[INFO] [stderr]    Compiling pest v2.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr] error: could not compile `clap`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name clap /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/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="ansi_term"' --cfg 'feature="atty"' --cfg 'feature="color"' --cfg 'feature="default"' --cfg 'feature="strsim"' --cfg 'feature="suggestions"' --cfg 'feature="vec_map"' -C metadata=cdc21cf4f8599f8c -C extra-filename=-cdc21cf4f8599f8c --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern ansi_term=/opt/rustwide/target/debug/deps/libansi_term-76ca62e328105e50.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-45518232cef1231f.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-6d05264d59b50f7f.rmeta --extern strsim=/opt/rustwide/target/debug/deps/libstrsim-c0d73e3d44b574a0.rmeta --extern textwrap=/opt/rustwide/target/debug/deps/libtextwrap-dc293f88acdad4dd.rmeta --extern unicode_width=/opt/rustwide/target/debug/deps/libunicode_width-fc75f8612925f963.rmeta --extern vec_map=/opt/rustwide/target/debug/deps/libvec_map-11539489c7468588.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: could not compile `serde_derive`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.103/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=94e62fa7ba45b62e -C extra-filename=-94e62fa7ba45b62e --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-bd6e8e81ab7378d5.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-5a4cffc873d2b583.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-651338316a74ca7f.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "76ad2b94536c3917b59a9993cd38a3890381098a9f3d8200b008a7a08eebc39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ad2b94536c3917b59a9993cd38a3890381098a9f3d8200b008a7a08eebc39e", kill_on_drop: false }`
[INFO] [stdout] 76ad2b94536c3917b59a9993cd38a3890381098a9f3d8200b008a7a08eebc39e