[INFO] fetching crate mudrs-milk 0.0.1...
[INFO] building mudrs-milk-0.0.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate mudrs-milk 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate mudrs-milk 0.0.1
[INFO] finished tweaking crates.io crate mudrs-milk 0.0.1
[INFO] tweaked toml for crates.io crate mudrs-milk 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mudrs-milk 0.0.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mudrs-milk 0.0.1 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d83050977889b4a4dd5459b682337038bb9bfac95a1133bb6eb19b6411fbc5d
[INFO] running `Command { std: "docker" "start" "-a" "6d83050977889b4a4dd5459b682337038bb9bfac95a1133bb6eb19b6411fbc5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d83050977889b4a4dd5459b682337038bb9bfac95a1133bb6eb19b6411fbc5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d83050977889b4a4dd5459b682337038bb9bfac95a1133bb6eb19b6411fbc5d", kill_on_drop: false }`
[INFO] [stdout] 6d83050977889b4a4dd5459b682337038bb9bfac95a1133bb6eb19b6411fbc5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8c3939ba327b8832f97a14fd42ae1609c32cb3c672a182a6cb5ca25ab42b578
[INFO] running `Command { std: "docker" "start" "-a" "f8c3939ba327b8832f97a14fd42ae1609c32cb3c672a182a6cb5ca25ab42b578", kill_on_drop: false }`
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[INFO] [stderr]    Compiling tracing-subscriber v0.3.5
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[INFO] [stderr]    Compiling prost v0.9.0
[INFO] [stderr]    Compiling proc-macro-crate v1.1.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.6
[INFO] [stderr]    Compiling prost-types v0.9.0
[INFO] [stderr]    Compiling num_enum v0.5.6
[INFO] [stderr]    Compiling tracing-appender v0.2.0
[INFO] [stderr]    Compiling mudrs-milk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling futures-executor v0.3.19
[INFO] [stderr]    Compiling futures v0.3.19
[INFO] [stderr]    Compiling tokio-util v0.6.9
[INFO] [stderr]    Compiling tellem v0.1.0
[INFO] [stderr]    Compiling serde_yaml v0.8.23
[INFO] [stderr]    Compiling alacritty_terminal v0.15.0
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]   --> src/widget/scrollback.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     debug,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bindings` is never read
[INFO] [stdout]  --> src/keybinding.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct KeyBinder {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     bindings: HashMap<KeyEvent, Box<dyn FnMut()>>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NopWriter` is never constructed
[INFO] [stdout]   --> src/widget/ansi.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct NopWriter;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/widget/input.rs:152:20
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn wrapped(&self, len: usize) -> InputBufferWrapped {
[INFO] [stdout]     |                    ^^^^^                 ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn wrapped(&self, len: usize) -> InputBufferWrapped<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/widget/scrollback.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn widget(&self) -> ScrollbackBufferWidget {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn widget(&self) -> ScrollbackBufferWidget<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 10s
[INFO] running `Command { std: "docker" "inspect" "f8c3939ba327b8832f97a14fd42ae1609c32cb3c672a182a6cb5ca25ab42b578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8c3939ba327b8832f97a14fd42ae1609c32cb3c672a182a6cb5ca25ab42b578", kill_on_drop: false }`
[INFO] [stdout] f8c3939ba327b8832f97a14fd42ae1609c32cb3c672a182a6cb5ca25ab42b578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4864d9eb705d6f72d29d1b4f9545dea48926080c8c629f25ca4db84e5edacbc
[INFO] running `Command { std: "docker" "start" "-a" "d4864d9eb705d6f72d29d1b4f9545dea48926080c8c629f25ca4db84e5edacbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling mudrs-milk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]   --> src/widget/scrollback.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     debug,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bindings` is never read
[INFO] [stdout]  --> src/keybinding.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct KeyBinder {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     bindings: HashMap<KeyEvent, Box<dyn FnMut()>>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NopWriter` is never constructed
[INFO] [stdout]   --> src/widget/ansi.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct NopWriter;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/widget/input.rs:152:20
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn wrapped(&self, len: usize) -> InputBufferWrapped {
[INFO] [stdout]     |                    ^^^^^                 ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn wrapped(&self, len: usize) -> InputBufferWrapped<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/widget/scrollback.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn widget(&self) -> ScrollbackBufferWidget {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn widget(&self) -> ScrollbackBufferWidget<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `debug`
[INFO] [stdout]   --> src/widget/scrollback.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     debug,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `bindings` is never read
[INFO] [stdout]  --> src/keybinding.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct KeyBinder {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 5 |     bindings: HashMap<KeyEvent, Box<dyn FnMut()>>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NopWriter` is never constructed
[INFO] [stdout]   --> src/widget/ansi.rs:64:8
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct NopWriter;
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/widget/input.rs:152:20
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn wrapped(&self, len: usize) -> InputBufferWrapped {
[INFO] [stdout]     |                    ^^^^^                 ^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 152 |     pub fn wrapped(&self, len: usize) -> InputBufferWrapped<'_> {
[INFO] [stdout]     |                                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/widget/scrollback.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn widget(&self) -> ScrollbackBufferWidget {
[INFO] [stdout]     |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                   |
[INFO] [stdout]     |                   the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub fn widget(&self) -> ScrollbackBufferWidget<'_> {
[INFO] [stdout]     |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "d4864d9eb705d6f72d29d1b4f9545dea48926080c8c629f25ca4db84e5edacbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4864d9eb705d6f72d29d1b4f9545dea48926080c8c629f25ca4db84e5edacbc", kill_on_drop: false }`
[INFO] [stdout] d4864d9eb705d6f72d29d1b4f9545dea48926080c8c629f25ca4db84e5edacbc
