[INFO] fetching crate std-logger-parser 0.1.0...
[INFO] checking std-logger-parser-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate std-logger-parser 0.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate std-logger-parser 0.1.0
[INFO] finished tweaking crates.io crate std-logger-parser 0.1.0
[INFO] tweaked toml for crates.io crate std-logger-parser 0.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate std-logger-parser 0.1.0 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]      Locking 2 packages to latest compatible versions
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 59d35fb3e131ee1fceda3bee601bac8144910375a2eaa6a66a03c28e4099e538
[INFO] running `Command { std: "docker" "start" "-a" "59d35fb3e131ee1fceda3bee601bac8144910375a2eaa6a66a03c28e4099e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59d35fb3e131ee1fceda3bee601bac8144910375a2eaa6a66a03c28e4099e538", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59d35fb3e131ee1fceda3bee601bac8144910375a2eaa6a66a03c28e4099e538", kill_on_drop: false }`
[INFO] [stdout] 59d35fb3e131ee1fceda3bee601bac8144910375a2eaa6a66a03c28e4099e538
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 74b946a4bf5ab3f4f3e17c52b7ccd9fc8cf31535a890811c2c1ab239e0950bd8
[INFO] running `Command { std: "docker" "start" "-a" "74b946a4bf5ab3f4f3e17c52b7ccd9fc8cf31535a890811c2c1ab239e0950bd8", kill_on_drop: false }`
[INFO] [stderr]     Checking std-logger-parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:180:49
[INFO] [stdout]     |
[INFO] [stdout] 180 |                         .insert(key.to_owned(), value.parse().unwrap());
[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<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:592:57
[INFO] [stdout]     |
[INFO] [stdout] 592 |       fn from_str(value: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _________________________________________________________^
[INFO] [stdout] 593 | |         if let Ok(b) = value.parse() {
[INFO] [stdout] 594 | |             Ok(Value::Bool(b))
[INFO] [stdout] 595 | |         } else if let Ok(i) = value.parse() {
[INFO] [stdout] ...   |
[INFO] [stdout] 602 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:593:9
[INFO] [stdout]     |
[INFO] [stdout] 593 | /         if let Ok(b) = value.parse() {
[INFO] [stdout] 594 | |             Ok(Value::Bool(b))
[INFO] [stdout] 595 | |         } else if let Ok(i) = value.parse() {
[INFO] [stdout] 596 | |             Ok(Value::Int(i))
[INFO] [stdout] ...   |
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:593:38
[INFO] [stdout]     |
[INFO] [stdout] 593 |           if let Ok(b) = value.parse() {
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout] 594 | |             Ok(Value::Bool(b))
[INFO] [stdout] 595 | |         } else if let Ok(i) = value.parse() {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:594:13
[INFO] [stdout]     |
[INFO] [stdout] 594 |             Ok(Value::Bool(b))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:595:16
[INFO] [stdout]     |
[INFO] [stdout] 595 |           } else if let Ok(i) = value.parse() {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 596 | |             Ok(Value::Int(i))
[INFO] [stdout] 597 | |         } else if let Ok(f) = value.parse() {
[INFO] [stdout] 598 | |             Ok(Value::Float(f))
[INFO] [stdout] 599 | |         } else {
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:595:45
[INFO] [stdout]     |
[INFO] [stdout] 595 |           } else if let Ok(i) = value.parse() {
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 596 | |             Ok(Value::Int(i))
[INFO] [stdout] 597 | |         } else if let Ok(f) = value.parse() {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:596:13
[INFO] [stdout]     |
[INFO] [stdout] 596 |             Ok(Value::Int(i))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:597:16
[INFO] [stdout]     |
[INFO] [stdout] 597 |           } else if let Ok(f) = value.parse() {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 598 | |             Ok(Value::Float(f))
[INFO] [stdout] 599 | |         } else {
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:597:45
[INFO] [stdout]     |
[INFO] [stdout] 597 |           } else if let Ok(f) = value.parse() {
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 598 | |             Ok(Value::Float(f))
[INFO] [stdout] 599 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:598:13
[INFO] [stdout]     |
[INFO] [stdout] 598 |             Ok(Value::Float(f))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:599:16
[INFO] [stdout]     |
[INFO] [stdout] 599 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:600:13
[INFO] [stdout]     |
[INFO] [stdout] 600 |             Ok(Value::String(value.to_owned()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `std-logger-parser` (lib test) due to 13 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:180:49
[INFO] [stdout]     |
[INFO] [stdout] 180 |                         .insert(key.to_owned(), value.parse().unwrap());
[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<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:592:57
[INFO] [stdout]     |
[INFO] [stdout] 592 |       fn from_str(value: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _________________________________________________________^
[INFO] [stdout] 593 | |         if let Ok(b) = value.parse() {
[INFO] [stdout] 594 | |             Ok(Value::Bool(b))
[INFO] [stdout] 595 | |         } else if let Ok(i) = value.parse() {
[INFO] [stdout] ...   |
[INFO] [stdout] 602 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:593:9
[INFO] [stdout]     |
[INFO] [stdout] 593 | /         if let Ok(b) = value.parse() {
[INFO] [stdout] 594 | |             Ok(Value::Bool(b))
[INFO] [stdout] 595 | |         } else if let Ok(i) = value.parse() {
[INFO] [stdout] 596 | |             Ok(Value::Int(i))
[INFO] [stdout] ...   |
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:593:38
[INFO] [stdout]     |
[INFO] [stdout] 593 |           if let Ok(b) = value.parse() {
[INFO] [stdout]     |  ______________________________________^
[INFO] [stdout] 594 | |             Ok(Value::Bool(b))
[INFO] [stdout] 595 | |         } else if let Ok(i) = value.parse() {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:594:13
[INFO] [stdout]     |
[INFO] [stdout] 594 |             Ok(Value::Bool(b))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:595:16
[INFO] [stdout]     |
[INFO] [stdout] 595 |           } else if let Ok(i) = value.parse() {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 596 | |             Ok(Value::Int(i))
[INFO] [stdout] 597 | |         } else if let Ok(f) = value.parse() {
[INFO] [stdout] 598 | |             Ok(Value::Float(f))
[INFO] [stdout] 599 | |         } else {
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:595:45
[INFO] [stdout]     |
[INFO] [stdout] 595 |           } else if let Ok(i) = value.parse() {
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 596 | |             Ok(Value::Int(i))
[INFO] [stdout] 597 | |         } else if let Ok(f) = value.parse() {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:596:13
[INFO] [stdout]     |
[INFO] [stdout] 596 |             Ok(Value::Int(i))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:597:16
[INFO] [stdout]     |
[INFO] [stdout] 597 |           } else if let Ok(f) = value.parse() {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 598 | |             Ok(Value::Float(f))
[INFO] [stdout] 599 | |         } else {
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:597:45
[INFO] [stdout]     |
[INFO] [stdout] 597 |           } else if let Ok(f) = value.parse() {
[INFO] [stdout]     |  _____________________________________________^
[INFO] [stdout] 598 | |             Ok(Value::Float(f))
[INFO] [stdout] 599 | |         } else {
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:598:13
[INFO] [stdout]     |
[INFO] [stdout] 598 |             Ok(Value::Float(f))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:599:16
[INFO] [stdout]     |
[INFO] [stdout] 599 |           } else {
[INFO] [stdout]     |  ________________^
[INFO] [stdout] 600 | |             Ok(Value::String(value.to_owned()))
[INFO] [stdout] 601 | |         }
[INFO] [stdout]     | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Value, Infallible>
[INFO] [stdout]    --> src/lib.rs:600:13
[INFO] [stdout]     |
[INFO] [stdout] 600 |             Ok(Value::String(value.to_owned()))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `std-logger-parser` (lib) due to 13 previous errors
[INFO] running `Command { std: "docker" "inspect" "74b946a4bf5ab3f4f3e17c52b7ccd9fc8cf31535a890811c2c1ab239e0950bd8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74b946a4bf5ab3f4f3e17c52b7ccd9fc8cf31535a890811c2c1ab239e0950bd8", kill_on_drop: false }`
[INFO] [stdout] 74b946a4bf5ab3f4f3e17c52b7ccd9fc8cf31535a890811c2c1ab239e0950bd8