[INFO] updating cached repository https://github.com/kareed44/simple
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 69b3c4b25b3c4a611a5327a9f6c3b380e3ee0c81
[INFO] checking kareed44/simple against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkareed44%2Fsimple" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kareed44/simple on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kareed44/simple
[INFO] finished tweaking git repo https://github.com/kareed44/simple
[INFO] tweaked toml for git repo https://github.com/kareed44/simple written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/kareed44/simple already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 78e8c822fe0ea5cf19ca76e288fe3b0d753b967e315f7e4b31bd7a6304ccd340
[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" "78e8c822fe0ea5cf19ca76e288fe3b0d753b967e315f7e4b31bd7a6304ccd340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "78e8c822fe0ea5cf19ca76e288fe3b0d753b967e315f7e4b31bd7a6304ccd340", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e8c822fe0ea5cf19ca76e288fe3b0d753b967e315f7e4b31bd7a6304ccd340", kill_on_drop: false }`
[INFO] [stdout] 78e8c822fe0ea5cf19ca76e288fe3b0d753b967e315f7e4b31bd7a6304ccd340
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f411776094a8bc217d13e7db24e195c90dc7605b3e9f2acf54d6e459194ee391
[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" "f411776094a8bc217d13e7db24e195c90dc7605b3e9f2acf54d6e459194ee391", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.39
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking lazy_static v1.0.0
[INFO] [stderr]    Compiling gio v0.4.0
[INFO] [stderr]    Compiling gdk-pixbuf v0.4.0
[INFO] [stderr]    Compiling cairo-rs v0.4.1
[INFO] [stderr]     Checking c_vec v1.2.1
[INFO] [stderr]    Compiling gdk v0.8.0
[INFO] [stderr]    Compiling gtk v0.4.0
[INFO] [stderr]    Compiling glib-sys v0.6.0
[INFO] [stderr]    Compiling gobject-sys v0.6.0
[INFO] [stderr]    Compiling gio-sys v0.6.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.6.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.6.0
[INFO] [stderr]    Compiling pango-sys v0.6.0
[INFO] [stderr]    Compiling gdk-sys v0.6.0
[INFO] [stderr]    Compiling atk-sys v0.6.0
[INFO] [stderr]    Compiling gtk-sys v0.6.0
[INFO] [stderr]     Checking glib v0.5.0
[INFO] [stderr]     Checking pango v0.4.0
[INFO] [stderr]     Checking simple v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `errorln`
[INFO] [stdout]   --> src/logging.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn errorln(message: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `errorln`
[INFO] [stdout]   --> src/logging.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn errorln(message: &str) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `Command { std: "docker" "inspect" "f411776094a8bc217d13e7db24e195c90dc7605b3e9f2acf54d6e459194ee391", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f411776094a8bc217d13e7db24e195c90dc7605b3e9f2acf54d6e459194ee391", kill_on_drop: false }`
[INFO] [stdout] f411776094a8bc217d13e7db24e195c90dc7605b3e9f2acf54d6e459194ee391