[INFO] fetching crate safex11 0.0.5...
[INFO] checking safex11-0.0.5 against beta for pr-78714
[INFO] extracting crate safex11 0.0.5 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate safex11 0.0.5 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate safex11 0.0.5
[INFO] finished tweaking crates.io crate safex11 0.0.5
[INFO] tweaked toml for crates.io crate safex11 0.0.5 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3efcfb8c341b3a285e38c650d13d8a34bc865c1cde07fe3648834489805dfc10
[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" "3efcfb8c341b3a285e38c650d13d8a34bc865c1cde07fe3648834489805dfc10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3efcfb8c341b3a285e38c650d13d8a34bc865c1cde07fe3648834489805dfc10", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3efcfb8c341b3a285e38c650d13d8a34bc865c1cde07fe3648834489805dfc10", kill_on_drop: false }`
[INFO] [stdout] 3efcfb8c341b3a285e38c650d13d8a34bc865c1cde07fe3648834489805dfc10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f40ae9200689912507596b27cda206108ef1b1b0159d4cad8e12d3d4ece66ea2
[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" "f40ae9200689912507596b27cda206108ef1b1b0159d4cad8e12d3d4ece66ea2", kill_on_drop: false }`
[INFO] [stderr]    Compiling safex11 v0.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling x11 v2.18.2
[INFO] [stdout] warning: unused import: `std::env`
[INFO] [stdout]  --> build.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> build.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]  --> build.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::path::Path;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.55s
[INFO] running `Command { std: "docker" "inspect" "f40ae9200689912507596b27cda206108ef1b1b0159d4cad8e12d3d4ece66ea2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f40ae9200689912507596b27cda206108ef1b1b0159d4cad8e12d3d4ece66ea2", kill_on_drop: false }`
[INFO] [stdout] f40ae9200689912507596b27cda206108ef1b1b0159d4cad8e12d3d4ece66ea2