[INFO] fetching crate vector-expr 0.4.0...
[INFO] checking vector-expr-0.4.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate vector-expr 0.4.0 into /workspace/builds/worker-4-tc2/source
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate vector-expr 0.4.0
[INFO] finished tweaking crates.io crate vector-expr 0.4.0
[INFO] tweaked toml for crates.io crate vector-expr 0.4.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vector-expr 0.4.0 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 34 packages to latest compatible versions
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 86f270fbe4db8f99c64d04baf1ebf61a29153d5497b8ed81a76a952b33a5667c
[INFO] running `Command { std: "docker" "start" "-a" "86f270fbe4db8f99c64d04baf1ebf61a29153d5497b8ed81a76a952b33a5667c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86f270fbe4db8f99c64d04baf1ebf61a29153d5497b8ed81a76a952b33a5667c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86f270fbe4db8f99c64d04baf1ebf61a29153d5497b8ed81a76a952b33a5667c", kill_on_drop: false }`
[INFO] [stdout] 86f270fbe4db8f99c64d04baf1ebf61a29153d5497b8ed81a76a952b33a5667c
[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] b0735a383b38352dc1803f6d9ae58aac5a66672cb64323cd29c019d7d2302722
[INFO] running `Command { std: "docker" "start" "-a" "b0735a383b38352dc1803f6d9ae58aac5a66672cb64323cd29c019d7d2302722", kill_on_drop: false }`
[INFO] [stderr]    Compiling pest_generator v2.8.3
[INFO] [stderr]    Compiling pest_derive v2.8.3
[INFO] [stderr]     Checking vector-expr v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/parse.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .filter(|p| (p.as_rule() == Rule::real_variable))
[INFO] [stdout]    |                         ^                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -             .filter(|p| (p.as_rule() == Rule::real_variable))
[INFO] [stdout] 47 +             .filter(|p| p.as_rule() == Rule::real_variable )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/parse.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |             .filter(|p| (p.as_rule() == Rule::str_variable))
[INFO] [stdout]    |                         ^                                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -             .filter(|p| (p.as_rule() == Rule::str_variable))
[INFO] [stdout] 55 +             .filter(|p| p.as_rule() == Rule::str_variable )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/parse.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |             .filter(|p| (p.as_rule() == Rule::real_variable))
[INFO] [stdout]    |                         ^                                  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -             .filter(|p| (p.as_rule() == Rule::real_variable))
[INFO] [stdout] 47 +             .filter(|p| p.as_rule() == Rule::real_variable )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> src/parse.rs:55:25
[INFO] [stdout]    |
[INFO] [stdout] 55 |             .filter(|p| (p.as_rule() == Rule::str_variable))
[INFO] [stdout]    |                         ^                                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -             .filter(|p| (p.as_rule() == Rule::str_variable))
[INFO] [stdout] 55 +             .filter(|p| p.as_rule() == Rule::str_variable )
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/parse.rs:113:20
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 if let Ok(value) = literal_str.parse::<String>() {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/parse.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 if let Ok(value) = literal_str.parse::<String>() {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vector-expr` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]    --> src/parse.rs:113:20
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 if let Ok(value) = literal_str.parse::<String>() {
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]     = help: consider replacing the `if let` with a `let`
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/parse.rs:113:36
[INFO] [stdout]     |
[INFO] [stdout] 113 |                 if let Ok(value) = literal_str.parse::<String>() {
[INFO] [stdout]     |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `vector-expr` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b0735a383b38352dc1803f6d9ae58aac5a66672cb64323cd29c019d7d2302722", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0735a383b38352dc1803f6d9ae58aac5a66672cb64323cd29c019d7d2302722", kill_on_drop: false }`
[INFO] [stdout] b0735a383b38352dc1803f6d9ae58aac5a66672cb64323cd29c019d7d2302722