[INFO] updating cached repository https://github.com/jplatte/mycelium
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a775075c5bced7c1f4acecc5f8a6b8fd0805cf88
[INFO] checking jplatte/mycelium against try#b19afc12c4f781e95f168f2fdea339c972f14ae2 for pr-64327
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjplatte%2Fmycelium" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jplatte/mycelium on toolchain b19afc12c4f781e95f168f2fdea339c972f14ae2-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+b19afc12c4f781e95f168f2fdea339c972f14ae2-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jplatte/mycelium
[INFO] finished tweaking git repo https://github.com/jplatte/mycelium
[INFO] tweaked toml for git repo https://github.com/jplatte/mycelium written to work/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/jplatte/mycelium already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+b19afc12c4f781e95f168f2fdea339c972f14ae2-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+b19afc12c4f781e95f168f2fdea339c972f14ae2-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 5a4efb71d228de1a810032ec494806bba16b0a21729120429ca253c5b1c9bf95
[INFO] running `"docker" "start" "-a" "5a4efb71d228de1a810032ec494806bba16b0a21729120429ca253c5b1c9bf95"`
[INFO] [stderr]     Checking glib-sys v0.9.0
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]     Checking gobject-sys v0.9.0
[INFO] [stderr]     Checking cairo-sys-rs v0.9.0
[INFO] [stderr]     Checking gio-sys v0.9.0
[INFO] [stderr]     Checking glib v0.8.1
[INFO] [stderr]     Checking pango-sys v0.9.0
[INFO] [stderr]     Checking atk-sys v0.9.0
[INFO] [stderr]     Checking gdk-pixbuf-sys v0.9.0
[INFO] [stderr]     Checking gdk-sys v0.9.0
[INFO] [stderr]     Checking gtk-sys v0.9.0
[INFO] [stderr]     Checking gio v0.7.0
[INFO] [stderr]     Checking pango v0.7.0
[INFO] [stderr]     Checking cairo-rs v0.7.1
[INFO] [stderr]     Checking atk v0.7.0
[INFO] [stderr]     Checking gdk-pixbuf v0.7.0
[INFO] [stderr]     Checking gdk v0.11.0
[INFO] [stderr]     Checking gtk v0.7.0
[INFO] [stderr]     Checking mycelium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never used: `files_tree_view_l`
[INFO] [stderr]   --> src/ui/app.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     files_tree_view_l: FilesTreeView,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `files_tree_view_r`
[INFO] [stderr]   --> src/ui/app.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     files_tree_view_r: Option<FilesTreeView>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ui/files_tree_view.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         tree_view.update();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `files_tree_view_l`
[INFO] [stderr]   --> src/ui/app.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     files_tree_view_l: FilesTreeView,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `files_tree_view_r`
[INFO] [stderr]   --> src/ui/app.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     files_tree_view_r: Option<FilesTreeView>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/ui/files_tree_view.rs:29:9
[INFO] [stderr]    |
[INFO] [stderr] 29 |         tree_view.update();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `"docker" "inspect" "5a4efb71d228de1a810032ec494806bba16b0a21729120429ca253c5b1c9bf95"`
[INFO] running `"docker" "rm" "-f" "5a4efb71d228de1a810032ec494806bba16b0a21729120429ca253c5b1c9bf95"`
[INFO] [stdout] 5a4efb71d228de1a810032ec494806bba16b0a21729120429ca253c5b1c9bf95