[INFO] cloning repository https://github.com/tectonic-typesetting/tectonic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tectonic-typesetting/tectonic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectonic-typesetting%2Ftectonic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectonic-typesetting%2Ftectonic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e6fc3b811e7697056221b118f87bd2395c2ca13
[INFO] checking tectonic-typesetting/tectonic against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftectonic-typesetting%2Ftectonic" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tectonic-typesetting/tectonic on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tectonic-typesetting/tectonic
[INFO] finished tweaking git repo https://github.com/tectonic-typesetting/tectonic
[INFO] tweaked toml for git repo https://github.com/tectonic-typesetting/tectonic written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/tectonic-typesetting/tectonic already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00ef434709e0ae3dd0c82e47510d91085e900f522aa9b80559c0e24f51f79cba
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "00ef434709e0ae3dd0c82e47510d91085e900f522aa9b80559c0e24f51f79cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00ef434709e0ae3dd0c82e47510d91085e900f522aa9b80559c0e24f51f79cba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00ef434709e0ae3dd0c82e47510d91085e900f522aa9b80559c0e24f51f79cba", kill_on_drop: false }`
[INFO] [stdout] 00ef434709e0ae3dd0c82e47510d91085e900f522aa9b80559c0e24f51f79cba
[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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 034768a3f414210dea4c9f0fcbcef640fae7ea5031c1eb48f20ebb2fcc650a6a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "034768a3f414210dea4c9f0fcbcef640fae7ea5031c1eb48f20ebb2fcc650a6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.91
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.65
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling cbindgen v0.16.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling tectonic v0.0.0-dev.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking utf8-width v0.1.4
[INFO] [stderr]     Checking podio v0.1.7
[INFO] [stderr]     Checking vcpkg v0.2.11
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]     Checking tectonic_cfg_support v0.0.0-dev.0 (/opt/rustwide/workdir/crates/cfg_support)
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking futures-channel v0.3.13
[INFO] [stderr]    Compiling tectonic_dep_support v0.0.0-dev.0 (/opt/rustwide/workdir/crates/dep_support)
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking tectonic_xdv v0.0.0-dev.0 (/opt/rustwide/workdir/crates/xdv)
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking app_dirs2 v2.3.2
[INFO] [stderr]     Checking byte-unit v4.0.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking encoding_rs v0.8.28
[INFO] [stderr]    Compiling embed-resource v1.6.1
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling tokio v1.4.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking futures-util v0.3.13
[INFO] [stderr]     Checking bstr v0.2.15
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling tectonic_bridge_icu v0.0.0-dev.0 (/opt/rustwide/workdir/crates/bridge_icu)
[INFO] [stderr]    Compiling tectonic_bridge_graphite2 v0.0.0-dev.0 (/opt/rustwide/workdir/crates/bridge_graphite2)
[INFO] [stderr]    Compiling tectonic_bridge_freetype2 v0.0.0-dev.0 (/opt/rustwide/workdir/crates/bridge_freetype2)
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking tectonic_errors v0.0.0-dev.0 (/opt/rustwide/workdir/crates/errors)
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking md-5 v0.9.1
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.36
[INFO] [stderr]     Checking tectonic_status_base v0.0.0-dev.0 (/opt/rustwide/workdir/crates/status_base)
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling openssl-sys v0.9.61
[INFO] [stderr]    Compiling tectonic_pdf_io v0.0.0-dev.0 (/opt/rustwide/workdir/crates/pdf_io)
[INFO] [stderr]    Compiling tectonic_bridge_harfbuzz v0.0.0-dev.0 (/opt/rustwide/workdir/crates/bridge_harfbuzz)
[INFO] [stderr]    Compiling tectonic_xetex_layout v0.0.0-dev.0 (/opt/rustwide/workdir/crates/xetex_layout)
[INFO] [stderr]    Compiling watchexec v1.14.1
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr] error: failed to run custom build command for `tectonic_bridge_harfbuzz v0.0.0-dev.0 (/opt/rustwide/workdir/crates/bridge_harfbuzz)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/tectonic_bridge_harfbuzz-3970a00d69df4861/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   error: no such file /opt/rustwide/workdir/crates/bridge_harfbuzz/harfbuzz/src/harfbuzz.cc
[INFO] [stderr]      if you have checked out from Git, you probably need to fetch submodules:
[INFO] [stderr]          git submodule update --init
[INFO] [stderr]      This is needed because we are attempting to compile a local copy of Harfbuzz.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "034768a3f414210dea4c9f0fcbcef640fae7ea5031c1eb48f20ebb2fcc650a6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034768a3f414210dea4c9f0fcbcef640fae7ea5031c1eb48f20ebb2fcc650a6a", kill_on_drop: false }`
[INFO] [stdout] 034768a3f414210dea4c9f0fcbcef640fae7ea5031c1eb48f20ebb2fcc650a6a