[INFO] cloning repository https://github.com/MrZloHex/zex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MrZloHex/zex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrZloHex%2Fzex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrZloHex%2Fzex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d187669b681cf31cb2dcd24c8efc71b420a367d5
[INFO] testing MrZloHex/zex against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrZloHex%2Fzex" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MrZloHex/zex on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MrZloHex/zex
[INFO] finished tweaking git repo https://github.com/MrZloHex/zex
[INFO] tweaked toml for git repo https://github.com/MrZloHex/zex written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/MrZloHex/zex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 839dcdc0b507930c99887b513114b20f262891483a06247cc94dd76cdb712426
[INFO] running `Command { std: "docker" "start" "-a" "839dcdc0b507930c99887b513114b20f262891483a06247cc94dd76cdb712426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "839dcdc0b507930c99887b513114b20f262891483a06247cc94dd76cdb712426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "839dcdc0b507930c99887b513114b20f262891483a06247cc94dd76cdb712426", kill_on_drop: false }`
[INFO] [stdout] 839dcdc0b507930c99887b513114b20f262891483a06247cc94dd76cdb712426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2cee8870214bce7a633fc63e345fca90d622502a40daae4cf50ef113f4cfb81b
[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" "2cee8870214bce7a633fc63e345fca90d622502a40daae4cf50ef113f4cfb81b", kill_on_drop: false }`
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling termion v1.5.6
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling tui v0.16.0
[INFO] [stderr]    Compiling zex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]   --> src/main.rs:13:95
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tui::{Terminal, backend::TermionBackend, layout::{Constraint, Direction, Layout}, style::{Color, Style}, text::{Span, Spans}, widgets...
[INFO] [stdout]    |                                                                                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ByteColors`
[INFO] [stdout]   --> src/main.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 | use colors::{ColorPallete, ByteColors};
[INFO] [stdout]    |                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut file = File::new(filename);
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_filename`
[INFO] [stdout]   --> src/file.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn get_filename(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/stateful_widgets.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn next(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `previous`
[INFO] [stdout]   --> src/stateful_widgets.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn previous(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unselect`
[INFO] [stdout]   --> src/stateful_widgets.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn unselect(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `srcoll_down`
[INFO] [stdout]   --> src/stateful_widgets.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn srcoll_down(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             terminal.clear();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.73s
[INFO] running `Command { std: "docker" "inspect" "2cee8870214bce7a633fc63e345fca90d622502a40daae4cf50ef113f4cfb81b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cee8870214bce7a633fc63e345fca90d622502a40daae4cf50ef113f4cfb81b", kill_on_drop: false }`
[INFO] [stdout] 2cee8870214bce7a633fc63e345fca90d622502a40daae4cf50ef113f4cfb81b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2b9e0a4a485e764b4b420a64359f149fe1f4accc9915f2b179606751d847eb72
[INFO] running `Command { std: "docker" "start" "-a" "2b9e0a4a485e764b4b420a64359f149fe1f4accc9915f2b179606751d847eb72", kill_on_drop: false }`
[INFO] [stderr]    Compiling zex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Color`
[INFO] [stdout]   --> src/main.rs:13:95
[INFO] [stdout]    |
[INFO] [stdout] 13 | use tui::{Terminal, backend::TermionBackend, layout::{Constraint, Direction, Layout}, style::{Color, Style}, text::{Span, Spans}, widgets...
[INFO] [stdout]    |                                                                                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ByteColors`
[INFO] [stdout]   --> src/main.rs:24:28
[INFO] [stdout]    |
[INFO] [stdout] 24 | use colors::{ColorPallete, ByteColors};
[INFO] [stdout]    |                            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |     let mut file = File::new(filename);
[INFO] [stdout]    |         ----^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_filename`
[INFO] [stdout]   --> src/file.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn get_filename(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/stateful_widgets.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn next(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `previous`
[INFO] [stdout]   --> src/stateful_widgets.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn previous(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unselect`
[INFO] [stdout]   --> src/stateful_widgets.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn unselect(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `srcoll_down`
[INFO] [stdout]   --> src/stateful_widgets.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn srcoll_down(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             terminal.clear();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "2b9e0a4a485e764b4b420a64359f149fe1f4accc9915f2b179606751d847eb72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b9e0a4a485e764b4b420a64359f149fe1f4accc9915f2b179606751d847eb72", kill_on_drop: false }`
[INFO] [stdout] 2b9e0a4a485e764b4b420a64359f149fe1f4accc9915f2b179606751d847eb72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 080bf0b169cede2da2718df3233c4df67f3fcbed92ea02effd807295ef22f5af
[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" "080bf0b169cede2da2718df3233c4df67f3fcbed92ea02effd807295ef22f5af", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `Color`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:13:95
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 13 | use tui::{Terminal, backend::TermionBackend, layout::{Constraint, Direction, Layout}, style::{Color, Style}, text::{Span, Spans}, widgets...
[INFO] [stdout] 
[INFO] [stderr]    |                                                                                               ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ByteColors`
[INFO] [stderr]   --> src/main.rs:24:28
[INFO] [stderr]    |
[INFO] [stderr] 24 | use colors::{ColorPallete, ByteColors};
[INFO] [stderr]    |                            ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut file = File::new(filename);
[INFO] [stderr]    |         ----^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_filename`
[INFO] [stderr]   --> src/file.rs:43:12
[INFO] [stderr]    |
[INFO] [stderr] 43 |     pub fn get_filename(&self) -> String {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `next`
[INFO] [stderr]   --> src/stateful_widgets.rs:19:12
[INFO] [stderr]    |
[INFO] [stderr] 19 |     pub fn next(&mut self) {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `previous`
[INFO] [stderr]   --> src/stateful_widgets.rs:33:12
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn previous(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `unselect`
[INFO] [stderr]   --> src/stateful_widgets.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn unselect(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `srcoll_down`
[INFO] [stderr]   --> src/stateful_widgets.rs:60:12
[INFO] [stderr]    |
[INFO] [stderr] 60 |     pub fn srcoll_down(&mut self) {
[INFO] [stderr]    |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |             terminal.clear();
[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: `zex` (bin "zex" test) generated 9 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/zex-a7652383d0455c69)
[INFO] running `Command { std: "docker" "inspect" "080bf0b169cede2da2718df3233c4df67f3fcbed92ea02effd807295ef22f5af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "080bf0b169cede2da2718df3233c4df67f3fcbed92ea02effd807295ef22f5af", kill_on_drop: false }`
[INFO] [stdout] 080bf0b169cede2da2718df3233c4df67f3fcbed92ea02effd807295ef22f5af