[INFO] cloning repository https://github.com/alienzj/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alienzj/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falienzj%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falienzj%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cb4f42e56e9f31bd08da507f9f2b005cf32844a6
[INFO] testing alienzj/learn-rust against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falienzj%2Flearn-rust" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alienzj/learn-rust 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 git repo https://github.com/alienzj/learn-rust
[INFO] finished tweaking git repo https://github.com/alienzj/learn-rust
[INFO] tweaked toml for git repo https://github.com/alienzj/learn-rust written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/alienzj/learn-rust 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]     Blocking waiting for file lock on package cache
[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] 0f5c47b40d19aa6668415d4b739d468ab95fa56aa0a38993bcf4e118caee57e5
[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" "0f5c47b40d19aa6668415d4b739d468ab95fa56aa0a38993bcf4e118caee57e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f5c47b40d19aa6668415d4b739d468ab95fa56aa0a38993bcf4e118caee57e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5c47b40d19aa6668415d4b739d468ab95fa56aa0a38993bcf4e118caee57e5", kill_on_drop: false }`
[INFO] [stdout] 0f5c47b40d19aa6668415d4b739d468ab95fa56aa0a38993bcf4e118caee57e5
[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] fb92e7870efdf3925e1848f1ebaf12080da68e177ccf7f1342dbdc5f61a69a7c
[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" "fb92e7870efdf3925e1848f1ebaf12080da68e177ccf7f1342dbdc5f61a69a7c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling serde v1.0.100
[INFO] [stderr]    Compiling gio v0.8.0
[INFO] [stderr]    Compiling pango v0.8.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.8.0
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling cairo-rs v0.8.0
[INFO] [stderr]    Compiling palette v0.5.0
[INFO] [stderr]    Compiling atk v0.8.0
[INFO] [stderr]    Compiling gdk v0.12.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]    Compiling bio v0.28.2
[INFO] [stderr]    Compiling gtk v0.8.0
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling strum v0.13.0
[INFO] [stderr]    Compiling bytecount v0.3.2
[INFO] [stderr]    Compiling custom_derive v0.1.7
[INFO] [stderr]    Compiling glib-sys v0.9.1
[INFO] [stderr]    Compiling gobject-sys v0.9.1
[INFO] [stderr]    Compiling gio-sys v0.9.1
[INFO] [stderr]    Compiling pango-sys v0.9.1
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
[INFO] [stderr]    Compiling atk-sys v0.9.1
[INFO] [stderr]    Compiling gdk-sys v0.9.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v4.0.7
[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling bit-set v0.5.1
[INFO] [stderr]    Compiling bv v0.10.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling dirs-sys v0.3.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling regex-automata v0.1.8
[INFO] [stderr]    Compiling jpeg-decoder v0.1.20
[INFO] [stderr]    Compiling pathfinder_simd v0.5.0
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling statrs v0.9.0
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling servo-freetype-sys v4.0.5
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rusttype v0.8.3
[INFO] [stderr]    Compiling aho-corasick v0.7.6
[INFO] [stderr]    Compiling csv-core v0.1.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling freetype v0.4.1
[INFO] [stderr]    Compiling image v0.23.10
[INFO] [stderr]    Compiling servo-fontconfig v0.4.0
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling regex v1.3.1
[INFO] [stderr]    Compiling font-kit v0.7.1
[INFO] [stderr]    Compiling strum_macros v0.13.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_derive v1.0.100
[INFO] [stderr]    Compiling palette_derive v0.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling plotters v0.2.15
[INFO] [stderr]    Compiling futures-executor v0.3.1
[INFO] [stderr]    Compiling glib v0.9.0
[INFO] [stderr]    Compiling bstr v0.2.8
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling multimap v0.4.0
[INFO] [stderr]    Compiling bio-types v0.5.1
[INFO] [stderr]    Compiling csv v1.1.1
[INFO] [stderr] error: could not compile `gtk`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name gtk /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/gtk-0.8.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=dc2c9a48290c9621 -C extra-filename=-dc2c9a48290c9621 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern atk=/opt/rustwide/target/debug/deps/libatk-82cd6b99fabb6eb7.rmeta --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-a3fbe067151623e2.rmeta --extern cairo=/opt/rustwide/target/debug/deps/libcairo-f32d515335d2cb33.rmeta --extern cairo_sys=/opt/rustwide/target/debug/deps/libcairo_sys-2d27c50dcef51a58.rmeta --extern gdk=/opt/rustwide/target/debug/deps/libgdk-aa7323ae7d289055.rmeta --extern gdk_pixbuf=/opt/rustwide/target/debug/deps/libgdk_pixbuf-1d7b3dbbc347cae0.rmeta --extern gdk_pixbuf_sys=/opt/rustwide/target/debug/deps/libgdk_pixbuf_sys-b1a1836087f54c48.rmeta --extern gdk_sys=/opt/rustwide/target/debug/deps/libgdk_sys-4d665df1809f522c.rmeta --extern gio=/opt/rustwide/target/debug/deps/libgio-c4d13c75c4e0e637.rmeta --extern gio_sys=/opt/rustwide/target/debug/deps/libgio_sys-91461e963091a0b9.rmeta --extern glib=/opt/rustwide/target/debug/deps/libglib-c124f4d9c81b5a13.rmeta --extern glib_sys=/opt/rustwide/target/debug/deps/libglib_sys-ce3c7a027c5bc7dc.rmeta --extern gobject_sys=/opt/rustwide/target/debug/deps/libgobject_sys-18642cfa35e3e646.rmeta --extern gtk_sys=/opt/rustwide/target/debug/deps/libgtk_sys-9423384328c47920.rmeta --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-7895c92c6d278491.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-e0846f52673851a4.rmeta --extern pango=/opt/rustwide/target/debug/deps/libpango-16e99e77fcd7bb78.rmeta --extern pango_sys=/opt/rustwide/target/debug/deps/libpango_sys-2910583c3c7e97f2.rmeta --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "fb92e7870efdf3925e1848f1ebaf12080da68e177ccf7f1342dbdc5f61a69a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb92e7870efdf3925e1848f1ebaf12080da68e177ccf7f1342dbdc5f61a69a7c", kill_on_drop: false }`
[INFO] [stdout] fb92e7870efdf3925e1848f1ebaf12080da68e177ccf7f1342dbdc5f61a69a7c