[INFO] fetching crate torrentfind 0.1.0...
[INFO] testing torrentfind-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate torrentfind 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate torrentfind 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate torrentfind 0.1.0
[INFO] finished tweaking crates.io crate torrentfind 0.1.0
[INFO] tweaked toml for crates.io crate torrentfind 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate torrentfind 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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 ref_thread_local v0.0.0
[INFO] [stderr]   Downloaded html-extractor-macros v0.4.0
[INFO] [stderr]   Downloaded term-table v1.3.0
[INFO] [stderr]   Downloaded html-extractor v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91cfd8b22a8c79a4deb085e587555fb71a1cef17183e2fdaf83e0689960a0f0c
[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" "91cfd8b22a8c79a4deb085e587555fb71a1cef17183e2fdaf83e0689960a0f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91cfd8b22a8c79a4deb085e587555fb71a1cef17183e2fdaf83e0689960a0f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91cfd8b22a8c79a4deb085e587555fb71a1cef17183e2fdaf83e0689960a0f0c", kill_on_drop: false }`
[INFO] [stdout] 91cfd8b22a8c79a4deb085e587555fb71a1cef17183e2fdaf83e0689960a0f0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 136d980f3b2b76841e22d33b2f5403d465b82659e936ae8fa43fcadde3bb32fc
[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" "136d980f3b2b76841e22d33b2f5403d465b82659e936ae8fa43fcadde3bb32fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.12
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling mac v0.1.1
[INFO] [stderr]    Compiling utf-8 v0.7.5
[INFO] [stderr]    Compiling procedural-masquerade v0.1.6
[INFO] [stderr]    Compiling thin-slice v0.1.1
[INFO] [stderr]    Compiling ego-tree v0.6.2
[INFO] [stderr]    Compiling ref_thread_local v0.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.37
[INFO] [stderr]    Compiling openssl-sys v0.9.55
[INFO] [stderr]    Compiling dtoa-short v0.3.2
[INFO] [stderr]    Compiling futures-channel v0.3.4
[INFO] [stderr]    Compiling http v0.2.1
[INFO] [stderr]    Compiling getopts v0.2.21
[INFO] [stderr]    Compiling servo_arc v0.1.1
[INFO] [stderr]    Compiling futf v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling serde_json v1.0.52
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling term-table v1.3.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling quote v1.0.4
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling tokio v0.2.20
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling selectors v0.21.0
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]    Compiling tokio-util v0.3.1
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.4
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling cssparser v0.25.9
[INFO] [stderr]    Compiling cssparser-macros v0.3.6
[INFO] [stderr]    Compiling html5ever v0.24.1
[INFO] [stderr]    Compiling pin-project-internal v0.4.10
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr] error: could not compile `html5ever`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name build_script_build --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/html5ever-0.25.1/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=3625ba45a17e0885 -C extra-filename=-3625ba45a17e0885 --out-dir /opt/rustwide/target/debug/build/html5ever-3625ba45a17e0885 -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-667f677b3222c84d.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-6806cbddf113269b.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-741dc1793c049869.rlib --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" "136d980f3b2b76841e22d33b2f5403d465b82659e936ae8fa43fcadde3bb32fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "136d980f3b2b76841e22d33b2f5403d465b82659e936ae8fa43fcadde3bb32fc", kill_on_drop: false }`
[INFO] [stdout] 136d980f3b2b76841e22d33b2f5403d465b82659e936ae8fa43fcadde3bb32fc