[INFO] fetching crate mdbook-linkcheck 0.7.6...
[INFO] testing mdbook-linkcheck-0.7.6 against 1.59.0 for beta-1.60-1
[INFO] extracting crate mdbook-linkcheck 0.7.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate mdbook-linkcheck 0.7.6 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3/source/.cargo/config
[INFO] started tweaking crates.io crate mdbook-linkcheck 0.7.6
[INFO] finished tweaking crates.io crate mdbook-linkcheck 0.7.6
[INFO] tweaked toml for crates.io crate mdbook-linkcheck 0.7.6 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate mdbook-linkcheck 0.7.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-executor v0.3.17
[INFO] [stderr]   Downloaded serde_json v1.0.69
[INFO] [stderr]   Downloaded linkcheck v0.4.1
[INFO] [stderr]   Downloaded linkify v0.7.0
[INFO] [stderr]   Downloaded handlebars v4.1.4
[INFO] [stderr]   Downloaded dunce v1.0.2
[INFO] [stderr]   Downloaded codespan-reporting v0.11.1
[INFO] [stderr]   Downloaded codespan v0.11.1
[INFO] [stderr]   Downloaded openssl-src v300.0.2+3.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 274197013cd6d6633932065e121914057941d8a8c776137bca2717df75dec508
[INFO] running `Command { std: "docker" "start" "-a" "274197013cd6d6633932065e121914057941d8a8c776137bca2717df75dec508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "274197013cd6d6633932065e121914057941d8a8c776137bca2717df75dec508", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274197013cd6d6633932065e121914057941d8a8c776137bca2717df75dec508", kill_on_drop: false }`
[INFO] [stdout] 274197013cd6d6633932065e121914057941d8a8c776137bca2717df75dec508
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 48566456c0b86629dc09227a9939e0ba478eb2ba8148d50661809898ae0a54d6
[INFO] running `Command { std: "docker" "start" "-a" "48566456c0b86629dc09227a9939e0ba478eb2ba8148d50661809898ae0a54d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling itoa v0.4.8
[INFO] [stderr]    Compiling pkg-config v0.3.22
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling openssl v0.10.38
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling serde_json v1.0.69
[INFO] [stderr]    Compiling encoding_rs v0.8.29
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling pulldown-cmark v0.8.0
[INFO] [stderr]    Compiling anyhow v1.0.45
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling quick-error v2.0.1
[INFO] [stderr]    Compiling dunce v1.0.2
[INFO] [stderr]    Compiling topological-sort v0.1.0
[INFO] [stderr]    Compiling shlex v1.1.0
[INFO] [stderr]    Compiling tokio v1.13.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling pest_meta v2.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling linkify v0.7.0
[INFO] [stderr]    Compiling http v0.2.5
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling openssl-src v300.0.2+3.0.0
[INFO] [stderr]    Compiling opener v0.5.0
[INFO] [stderr]    Compiling openssl-sys v0.9.70
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.14
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling http-body v0.4.4
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling structopt v0.3.25
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling h2 v0.3.7
[INFO] [stderr]    Compiling futures-executor v0.3.17
[INFO] [stderr]    Compiling futures v0.3.17
[INFO] [stderr] error: could not compile `h2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name h2 --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/h2-0.3.7/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=fcd935124b49f712 -C extra-filename=-fcd935124b49f712 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern bytes=/opt/rustwide/target/debug/deps/libbytes-15b4425b0ed3b764.rmeta --extern fnv=/opt/rustwide/target/debug/deps/libfnv-cb175ca084a41bf7.rmeta --extern futures_core=/opt/rustwide/target/debug/deps/libfutures_core-5e66b847dfc7d0ca.rmeta --extern futures_sink=/opt/rustwide/target/debug/deps/libfutures_sink-c92f3520fd4e9c9a.rmeta --extern futures_util=/opt/rustwide/target/debug/deps/libfutures_util-9c3c60c2f4478272.rmeta --extern http=/opt/rustwide/target/debug/deps/libhttp-cc4d59f5e064f06a.rmeta --extern indexmap=/opt/rustwide/target/debug/deps/libindexmap-5ff1cfbb73f4fb2b.rmeta --extern slab=/opt/rustwide/target/debug/deps/libslab-9af0dd81ec65e962.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-dc8895fe145e403b.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-9bc7ebba35e0c794.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-7ed4c5ad94a14da3.rmeta --cap-lints allow --cap-lints=warn` (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" "48566456c0b86629dc09227a9939e0ba478eb2ba8148d50661809898ae0a54d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48566456c0b86629dc09227a9939e0ba478eb2ba8148d50661809898ae0a54d6", kill_on_drop: false }`
[INFO] [stdout] 48566456c0b86629dc09227a9939e0ba478eb2ba8148d50661809898ae0a54d6