[INFO] fetching crate scpi 1.0.1...
[INFO] checking scpi-1.0.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate scpi 1.0.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate scpi 1.0.1
[INFO] finished tweaking crates.io crate scpi 1.0.1
[INFO] tweaked toml for crates.io crate scpi 1.0.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate scpi 1.0.1 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] crate crates.io crate scpi 1.0.1 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] f9ca03c9738b961c01e81ae92b00e871d09d71f9cc77deb1675d591e5a87dd15
[INFO] running `Command { std: "docker" "start" "-a" "f9ca03c9738b961c01e81ae92b00e871d09d71f9cc77deb1675d591e5a87dd15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9ca03c9738b961c01e81ae92b00e871d09d71f9cc77deb1675d591e5a87dd15", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9ca03c9738b961c01e81ae92b00e871d09d71f9cc77deb1675d591e5a87dd15", kill_on_drop: false }`
[INFO] [stdout] f9ca03c9738b961c01e81ae92b00e871d09d71f9cc77deb1675d591e5a87dd15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 63bc2f13ff0d9109978e7165313729b8d7fd366626c95fdfa8fbc68969f378cf
[INFO] running `Command { std: "docker" "start" "-a" "63bc2f13ff0d9109978e7165313729b8d7fd366626c95fdfa8fbc68969f378cf", kill_on_drop: false }`
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]    Compiling syn v2.0.63
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling serde v1.0.202
[INFO] [stderr]    Compiling litrs v0.4.1
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]    Compiling document-features v0.2.8
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]     Checking uom v0.36.0
[INFO] [stderr]    Compiling serde_derive v1.0.202
[INFO] [stderr]    Compiling scpi_derive v1.0.1
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking scpi v1.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser_unreachable`
[INFO] [stdout]   --> src/parser/parameters.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) use parser_unreachable;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `parser_unreachable`
[INFO] [stdout]   --> src/parser/parameters.rs:39:16
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(crate) use parser_unreachable;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: core::result::Result<u64, Infallible>
[INFO] [stdout]    --> src/parser/parameters.rs:389:25
[INFO] [stdout]     |
[INFO] [stdout] 389 |                         <$from>::try_from(value).map_err(|_| ErrorCode::DataOutOfRange.into())
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 418 | impl_tryfrom_integer!(u64, f64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_tryfrom_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser/response/mod.rs:277:22
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn response_unit(&mut self) -> Result<ResponseUnit>;
[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] 277 |     fn response_unit(&mut self) -> Result<ResponseUnit<'_>>;
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/response/vecformatter.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn response_unit(&mut self) -> Result<ResponseUnit> {
[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] 39 |     fn response_unit(&mut self) -> Result<ResponseUnit<'_>> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scpi` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: core::result::Result<u64, Infallible>
[INFO] [stdout]    --> src/parser/parameters.rs:389:25
[INFO] [stdout]     |
[INFO] [stdout] 389 |                         <$from>::try_from(value).map_err(|_| ErrorCode::DataOutOfRange.into())
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 418 | impl_tryfrom_integer!(u64, f64);
[INFO] [stdout]     | ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout]     = note: this error originates in the macro `impl_tryfrom_integer` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser/response/mod.rs:277:22
[INFO] [stdout]     |
[INFO] [stdout] 277 |     fn response_unit(&mut self) -> Result<ResponseUnit>;
[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] 277 |     fn response_unit(&mut self) -> Result<ResponseUnit<'_>>;
[INFO] [stdout]     |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/parser/response/vecformatter.rs:39:22
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn response_unit(&mut self) -> Result<ResponseUnit> {
[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] 39 |     fn response_unit(&mut self) -> Result<ResponseUnit<'_>> {
[INFO] [stdout]    |                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scpi` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "63bc2f13ff0d9109978e7165313729b8d7fd366626c95fdfa8fbc68969f378cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63bc2f13ff0d9109978e7165313729b8d7fd366626c95fdfa8fbc68969f378cf", kill_on_drop: false }`
[INFO] [stdout] 63bc2f13ff0d9109978e7165313729b8d7fd366626c95fdfa8fbc68969f378cf
