[INFO] updating cached repository yiblet/tagtask
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/yiblet/tagtask
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/yiblet/tagtask" "work/ex/beta-1.37-6/sources/1.36.0/gh/yiblet/tagtask"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/yiblet/tagtask'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/yiblet/tagtask" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yiblet/tagtask"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yiblet/tagtask'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3519bafac16bc8275346973c7e679d932b549266
[INFO] sha for GitHub repo yiblet/tagtask: 3519bafac16bc8275346973c7e679d932b549266
[INFO] validating manifest of yiblet/tagtask on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of yiblet/tagtask on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing yiblet/tagtask
[INFO] finished frobbing yiblet/tagtask
[INFO] frobbed toml for yiblet/tagtask written to work/ex/beta-1.37-6/sources/1.36.0/gh/yiblet/tagtask/Cargo.toml
[INFO] started frobbing yiblet/tagtask
[INFO] finished frobbing yiblet/tagtask
[INFO] frobbed toml for yiblet/tagtask written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/yiblet/tagtask/Cargo.toml
[INFO] crate yiblet/tagtask already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing yiblet/tagtask against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yiblet/tagtask:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 31d6a0580df4ee7dd11f8c9ae29e4fe541cbfac79cb46908af0d9adf7a43f9fa
[INFO] running `"docker" "start" "-a" "31d6a0580df4ee7dd11f8c9ae29e4fe541cbfac79cb46908af0d9adf7a43f9fa"`
[INFO] [stderr]    Compiling derive_builder v0.5.1
[INFO] [stderr]    Compiling futures v0.1.23
[INFO] [stderr]    Compiling termion v1.5.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling smallvec v0.6.3
[INFO] [stderr]    Compiling kdtree v0.5.1
[INFO] [stderr]    Compiling ropey v0.8.1
[INFO] [stderr]    Compiling derive_builder_core v0.2.0
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling tagtask v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `SquareBuilder`
[INFO] [stderr]  --> src/view/layout.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 | use view::widget::{Square, SquareBuilder};
[INFO] [stderr]   |                            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `view::widget::Widget`
[INFO] [stderr]   --> src/view/render.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use view::widget::Widget;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fetch`
[INFO] [stderr]   --> src/view/id.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn fetch() -> u64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Horizontal`
[INFO] [stderr]  --> src/view/layout.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Horizontal,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VirtualScreen`
[INFO] [stderr]   --> src/view/render.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct VirtualScreen<T: Space> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/view/render.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/view/render.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn insert(&mut self, x: u16, y: u16, item: Rc<T>) -> Result<(), ErrorKind> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `in_range`
[INFO] [stderr]   --> src/view/render.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn in_range(&mut self, square: &Square) -> Result<Vec<Rc<T>>, ErrorKind> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.07s
[INFO] running `"docker" "inspect" "31d6a0580df4ee7dd11f8c9ae29e4fe541cbfac79cb46908af0d9adf7a43f9fa"`
[INFO] running `"docker" "rm" "-f" "31d6a0580df4ee7dd11f8c9ae29e4fe541cbfac79cb46908af0d9adf7a43f9fa"`
[INFO] [stdout] 31d6a0580df4ee7dd11f8c9ae29e4fe541cbfac79cb46908af0d9adf7a43f9fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yiblet/tagtask:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 53c5f4f49251009432206b2f010fb964e521baa67b8156f91e83ae5e4b0257fa
[INFO] running `"docker" "start" "-a" "53c5f4f49251009432206b2f010fb964e521baa67b8156f91e83ae5e4b0257fa"`
[INFO] [stderr]    Compiling tagtask v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `SquareBuilder`
[INFO] [stderr]  --> src/view/layout.rs:2:28
[INFO] [stderr]   |
[INFO] [stderr] 2 | use view::widget::{Square, SquareBuilder};
[INFO] [stderr]   |                            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `view::widget::Widget`
[INFO] [stderr]   --> src/view/render.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use view::widget::Widget;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fetch`
[INFO] [stderr]   --> src/view/id.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | pub fn fetch() -> u64 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Horizontal`
[INFO] [stderr]  --> src/view/layout.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     Horizontal,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `VirtualScreen`
[INFO] [stderr]   --> src/view/render.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | struct VirtualScreen<T: Space> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/view/render.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `insert`
[INFO] [stderr]   --> src/view/render.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn insert(&mut self, x: u16, y: u16, item: Rc<T>) -> Result<(), ErrorKind> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `in_range`
[INFO] [stderr]   --> src/view/render.rs:36:5
[INFO] [stderr]    |
[INFO] [stderr] 36 |     pub fn in_range(&mut self, square: &Square) -> Result<Vec<Rc<T>>, ErrorKind> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.10s
[INFO] running `"docker" "inspect" "53c5f4f49251009432206b2f010fb964e521baa67b8156f91e83ae5e4b0257fa"`
[INFO] running `"docker" "rm" "-f" "53c5f4f49251009432206b2f010fb964e521baa67b8156f91e83ae5e4b0257fa"`
[INFO] [stdout] 53c5f4f49251009432206b2f010fb964e521baa67b8156f91e83ae5e4b0257fa
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-3/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/yiblet/tagtask:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 36c456d2d1a5b0291bb5e4760e81d52c18aa9f6103dae961a49fbd7368cdadd4
[INFO] running `"docker" "start" "-a" "36c456d2d1a5b0291bb5e4760e81d52c18aa9f6103dae961a49fbd7368cdadd4"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/tagtask-45c9a41589423f92
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "36c456d2d1a5b0291bb5e4760e81d52c18aa9f6103dae961a49fbd7368cdadd4"`
[INFO] running `"docker" "rm" "-f" "36c456d2d1a5b0291bb5e4760e81d52c18aa9f6103dae961a49fbd7368cdadd4"`
[INFO] [stdout] 36c456d2d1a5b0291bb5e4760e81d52c18aa9f6103dae961a49fbd7368cdadd4