[INFO] fetching crate keybindings 0.0.2...
[INFO] checking keybindings-0.0.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate keybindings 0.0.2 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate keybindings 0.0.2
[INFO] finished tweaking crates.io crate keybindings 0.0.2
[INFO] tweaked toml for crates.io crate keybindings 0.0.2 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate keybindings 0.0.2 on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding unicode-width v0.1.14 (available: v0.2.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a592b7fccdb2671294a49b3d074e4eec1146edeae276eb89da868ab2dabda07d
[INFO] running `Command { std: "docker" "start" "-a" "a592b7fccdb2671294a49b3d074e4eec1146edeae276eb89da868ab2dabda07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a592b7fccdb2671294a49b3d074e4eec1146edeae276eb89da868ab2dabda07d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a592b7fccdb2671294a49b3d074e4eec1146edeae276eb89da868ab2dabda07d", kill_on_drop: false }`
[INFO] [stdout] a592b7fccdb2671294a49b3d074e4eec1146edeae276eb89da868ab2dabda07d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eaf30e7b3daec0739ad27ed6b6b78b1fb2966af982a51614d1fb63a2778df4e
[INFO] running `Command { std: "docker" "start" "-a" "6eaf30e7b3daec0739ad27ed6b6b78b1fb2966af982a51614d1fb63a2778df4e", kill_on_drop: false }`
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking keybindings v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<char>, Infallible>
[INFO] [stdout]    --> src/lib.rs:214:69
[INFO] [stdout]     |
[INFO] [stdout] 214 |       fn from_macro_str(mstr: &str) -> Result<Vec<Self>, Self::Error> {
[INFO] [stdout]     |  _____________________________________________________________________^
[INFO] [stdout] 215 | |         Ok(mstr.chars().collect())
[INFO] [stdout] 216 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<char>, Infallible>
[INFO] [stdout]    --> src/lib.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         Ok(mstr.chars().collect())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:670:20
[INFO] [stdout]     |
[INFO] [stdout] 670 |     fn follow_edge(&self, id: NodeId, ke: &Key) -> FollowResult<Key, S> {
[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] 670 |     fn follow_edge(&self, id: NodeId, ke: &Key) -> FollowResult<'_, Key, S> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `keybindings` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<char>, Infallible>
[INFO] [stdout]    --> src/lib.rs:214:69
[INFO] [stdout]     |
[INFO] [stdout] 214 |       fn from_macro_str(mstr: &str) -> Result<Vec<Self>, Self::Error> {
[INFO] [stdout]     |  _____________________________________________________________________^
[INFO] [stdout] 215 | |         Ok(mstr.chars().collect())
[INFO] [stdout] 216 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<char>, Infallible>
[INFO] [stdout]    --> src/lib.rs:215:9
[INFO] [stdout]     |
[INFO] [stdout] 215 |         Ok(mstr.chars().collect())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:670:20
[INFO] [stdout]     |
[INFO] [stdout] 670 |     fn follow_edge(&self, id: NodeId, ke: &Key) -> FollowResult<Key, S> {
[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] 670 |     fn follow_edge(&self, id: NodeId, ke: &Key) -> FollowResult<'_, Key, S> {
[INFO] [stdout]     |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<TestKey>, Infallible>
[INFO] [stdout]     --> src/lib.rs:1440:73
[INFO] [stdout]      |
[INFO] [stdout] 1440 |           fn from_macro_str(mstr: &str) -> Result<Vec<Self>, Self::Error> {
[INFO] [stdout]      |  _________________________________________________________________________^
[INFO] [stdout] 1441 | |             Ok(mstr.chars().map(TestKey::from).collect())
[INFO] [stdout] 1442 | |         }
[INFO] [stdout]      | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Vec<TestKey>, Infallible>
[INFO] [stdout]     --> src/lib.rs:1441:13
[INFO] [stdout]      |
[INFO] [stdout] 1441 |             Ok(mstr.chars().map(TestKey::from).collect())
[INFO] [stdout]      |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `keybindings` (lib test) due to 4 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "6eaf30e7b3daec0739ad27ed6b6b78b1fb2966af982a51614d1fb63a2778df4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eaf30e7b3daec0739ad27ed6b6b78b1fb2966af982a51614d1fb63a2778df4e", kill_on_drop: false }`
[INFO] [stdout] 6eaf30e7b3daec0739ad27ed6b6b78b1fb2966af982a51614d1fb63a2778df4e
