[INFO] fetching crate ablescript 0.5.4...
[INFO] checking ablescript-0.5.4 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate ablescript 0.5.4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate ablescript 0.5.4
[INFO] finished tweaking crates.io crate ablescript 0.5.4
[INFO] tweaked toml for crates.io crate ablescript 0.5.4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ablescript 0.5.4 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 20 packages to latest compatible versions
[INFO] [stderr]       Adding logos v0.13.0 (available: v0.15.1)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 64ac5ed49dec06e45ad83221587a1abfff2e9fc7b4b7e5969a8efaf1af2ef061
[INFO] running `Command { std: "docker" "start" "-a" "64ac5ed49dec06e45ad83221587a1abfff2e9fc7b4b7e5969a8efaf1af2ef061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64ac5ed49dec06e45ad83221587a1abfff2e9fc7b4b7e5969a8efaf1af2ef061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64ac5ed49dec06e45ad83221587a1abfff2e9fc7b4b7e5969a8efaf1af2ef061", kill_on_drop: false }`
[INFO] [stdout] 64ac5ed49dec06e45ad83221587a1abfff2e9fc7b4b7e5969a8efaf1af2ef061
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] cd67797c8bbbdd7a52038d5bb3edcf8327db83a4fd48c7adad0f276ad4f2c807
[INFO] running `Command { std: "docker" "start" "-a" "cd67797c8bbbdd7a52038d5bb3edcf8327db83a4fd48c7adad0f276ad4f2c807", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling logos-codegen v0.13.0
[INFO] [stderr]    Compiling logos-derive v0.13.0
[INFO] [stderr]     Checking logos v0.13.0
[INFO] [stderr]     Checking ablescript v0.5.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/value/mod.rs:174:19
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn borrow(&self) -> Ref<Value> {
[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] 174 |     pub fn borrow(&self) -> Ref<'_, Value> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/value/mod.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn borrow_mut(&self) -> RefMut<Value> {
[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] 178 |     pub fn borrow_mut(&self) -> RefMut<'_, Value> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<i8>, Infallible>
[INFO] [stdout]    --> src/brian.rs:346:67
[INFO] [stdout]     |
[INFO] [stdout] 346 |       fn bootleg_read(&mut self) -> Result<Option<i8>, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________________________^
[INFO] [stdout] 347 | |         Ok(self.0.pop_front())
[INFO] [stdout] 348 | |     }
[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<Option<i8>, Infallible>
[INFO] [stdout]    --> src/brian.rs:347:9
[INFO] [stdout]     |
[INFO] [stdout] 347 |         Ok(self.0.pop_front())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ablescript` (lib) due to 2 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/value/mod.rs:174:19
[INFO] [stdout]     |
[INFO] [stdout] 174 |     pub fn borrow(&self) -> Ref<Value> {
[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] 174 |     pub fn borrow(&self) -> Ref<'_, Value> {
[INFO] [stdout]     |                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/value/mod.rs:178:23
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn borrow_mut(&self) -> RefMut<Value> {
[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] 178 |     pub fn borrow_mut(&self) -> RefMut<'_, Value> {
[INFO] [stdout]     |                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<i8>, Infallible>
[INFO] [stdout]    --> src/brian.rs:346:67
[INFO] [stdout]     |
[INFO] [stdout] 346 |       fn bootleg_read(&mut self) -> Result<Option<i8>, Self::Error> {
[INFO] [stdout]     |  ___________________________________________________________________^
[INFO] [stdout] 347 | |         Ok(self.0.pop_front())
[INFO] [stdout] 348 | |     }
[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<Option<i8>, Infallible>
[INFO] [stdout]    --> src/brian.rs:347:9
[INFO] [stdout]     |
[INFO] [stdout] 347 |         Ok(self.0.pop_front())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ablescript` (lib test) due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cd67797c8bbbdd7a52038d5bb3edcf8327db83a4fd48c7adad0f276ad4f2c807", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd67797c8bbbdd7a52038d5bb3edcf8327db83a4fd48c7adad0f276ad4f2c807", kill_on_drop: false }`
[INFO] [stdout] cd67797c8bbbdd7a52038d5bb3edcf8327db83a4fd48c7adad0f276ad4f2c807
