[INFO] cloning repository https://github.com/jplatte/mycelium
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jplatte/mycelium" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjplatte%2Fmycelium", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjplatte%2Fmycelium'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a775075c5bced7c1f4acecc5f8a6b8fd0805cf88
[INFO] checking jplatte/mycelium against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjplatte%2Fmycelium" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[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 /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jplatte/mycelium on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jplatte/mycelium already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mime v0.2.6
[INFO] [stderr]   Downloaded unicase v1.4.2
[INFO] [stderr]   Downloaded gdk-pixbuf-sys v0.9.0
[INFO] [stderr]   Downloaded dirs v2.0.1
[INFO] [stderr]   Downloaded gdk-pixbuf v0.7.0
[INFO] [stderr]   Downloaded dirs-sys v0.3.3
[INFO] [stderr]   Downloaded atk-sys v0.9.0
[INFO] [stderr]   Downloaded glib-sys v0.9.0
[INFO] [stderr]   Downloaded atk v0.7.0
[INFO] [stderr]   Downloaded backtrace v0.3.33
[INFO] [stderr]   Downloaded gdk v0.11.0
[INFO] [stderr]   Downloaded gio-sys v0.9.0
[INFO] [stderr]   Downloaded gtk-sys v0.9.0
[INFO] [stderr]   Downloaded glib v0.8.1
[INFO] [stderr]   Downloaded gdk-sys v0.9.0
[INFO] [stderr]   Downloaded pango v0.7.0
[INFO] [stderr]   Downloaded gio v0.7.0
[INFO] [stderr]   Downloaded cairo-rs v0.7.1
[INFO] [stderr]   Downloaded pango-sys v0.9.0
[INFO] [stderr]   Downloaded mime_guess v1.8.7
[INFO] [stderr]   Downloaded gobject-sys v0.9.0
[INFO] [stderr]   Downloaded cairo-sys-rs v0.9.0
[INFO] [stderr]   Downloaded gtk v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02a5f94c1108a54bee5d142b03adccc02ed7792ca4fc0d3aa8b1cde898a63d1e
[INFO] running `Command { std: "docker" "start" "-a" "02a5f94c1108a54bee5d142b03adccc02ed7792ca4fc0d3aa8b1cde898a63d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02a5f94c1108a54bee5d142b03adccc02ed7792ca4fc0d3aa8b1cde898a63d1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02a5f94c1108a54bee5d142b03adccc02ed7792ca4fc0d3aa8b1cde898a63d1e", kill_on_drop: false }`
[INFO] [stdout] 02a5f94c1108a54bee5d142b03adccc02ed7792ca4fc0d3aa8b1cde898a63d1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7820ecc2e247ccf46adf97336c30f651355f09f4d4cdaa0754601fc902ebb6ec
[INFO] running `Command { std: "docker" "start" "-a" "7820ecc2e247ccf46adf97336c30f651355f09f4d4cdaa0754601fc902ebb6ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]    Compiling gio v0.7.0
[INFO] [stderr]    Compiling log v0.4.7
[INFO] [stderr]    Compiling pango v0.7.0
[INFO] [stderr]     Checking fragile v0.3.0
[INFO] [stderr]    Compiling cairo-rs v0.7.1
[INFO] [stderr]    Compiling gdk-pixbuf v0.7.0
[INFO] [stderr]    Compiling gdk v0.11.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling atk v0.7.0
[INFO] [stderr]    Compiling gtk v0.7.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling glib-sys v0.9.0
[INFO] [stderr]    Compiling gobject-sys v0.9.0
[INFO] [stderr]    Compiling gio-sys v0.9.0
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.9.0
[INFO] [stderr]    Compiling pango-sys v0.9.0
[INFO] [stderr]    Compiling cairo-sys-rs v0.9.0
[INFO] [stderr]    Compiling gdk-sys v0.9.0
[INFO] [stderr]    Compiling atk-sys v0.9.0
[INFO] [stderr]    Compiling gtk-sys v0.9.0
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking phf v0.7.24
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking dirs-sys v0.3.3
[INFO] [stderr]     Checking dirs v2.0.1
[INFO] [stderr]     Checking glib v0.8.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]     Checking mycelium v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `files_tree_view_l` and `files_tree_view_r` are never read
[INFO] [stdout]   --> src/ui/app.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct App {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     files_tree_view_l: FilesTreeView,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     files_tree_view_r: Option<FilesTreeView>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `files_tree_view_l` and `files_tree_view_r` are never read
[INFO] [stdout]   --> src/ui/app.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct App {
[INFO] [stdout]    |            --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     files_tree_view_l: FilesTreeView,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 14 |     files_tree_view_r: Option<FilesTreeView>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/files_tree_view.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         tree_view.update();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = tree_view.update();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/ui/files_tree_view.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 29 |         tree_view.update();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let _ = tree_view.update();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 37.93s
[INFO] running `Command { std: "docker" "inspect" "7820ecc2e247ccf46adf97336c30f651355f09f4d4cdaa0754601fc902ebb6ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7820ecc2e247ccf46adf97336c30f651355f09f4d4cdaa0754601fc902ebb6ec", kill_on_drop: false }`
[INFO] [stdout] 7820ecc2e247ccf46adf97336c30f651355f09f4d4cdaa0754601fc902ebb6ec