[INFO] fetching crate naviz-parser 0.5.0...
[INFO] checking naviz-parser-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate naviz-parser 0.5.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate naviz-parser 0.5.0
[INFO] finished tweaking crates.io crate naviz-parser 0.5.0
[INFO] tweaked toml for crates.io crate naviz-parser 0.5.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate naviz-parser 0.5.0 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] crate crates.io crate naviz-parser 0.5.0 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-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] 01f04cb672f2b0bb048e579ca831adcc9812db987e84d4f7f488d98457d24e56
[INFO] running `Command { std: "docker" "start" "-a" "01f04cb672f2b0bb048e579ca831adcc9812db987e84d4f7f488d98457d24e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01f04cb672f2b0bb048e579ca831adcc9812db987e84d4f7f488d98457d24e56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01f04cb672f2b0bb048e579ca831adcc9812db987e84d4f7f488d98457d24e56", kill_on_drop: false }`
[INFO] [stdout] 01f04cb672f2b0bb048e579ca831adcc9812db987e84d4f7f488d98457d24e56
[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] 7a2dd94b21328fadefc78e2ca75d806ac9a79296a451e59b995e81ef39a7cde1
[INFO] running `Command { std: "docker" "start" "-a" "7a2dd94b21328fadefc78e2ca75d806ac9a79296a451e59b995e81ef39a7cde1", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking fraction v0.15.3
[INFO] [stderr]     Checking naviz-parser v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:168:58
[INFO] [stdout]     |
[INFO] [stdout] 168 |       fn string(self) -> Result<String, Self::StringError> {
[INFO] [stdout]     |  __________________________________________________________^
[INFO] [stdout] 169 | |         Ok(self.to_string())
[INFO] [stdout] 170 | |     }
[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<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         Ok(self.to_string())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:186:66
[INFO] [stdout]     |
[INFO] [stdout] 186 |       fn identifier(self) -> Result<String, Self::IdentifierError> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout] 187 | |         Ok(self.to_string())
[INFO] [stdout] 188 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Ok(self.to_string())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `naviz-parser` (lib) due to 4 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<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:168:58
[INFO] [stdout]     |
[INFO] [stdout] 168 |       fn string(self) -> Result<String, Self::StringError> {
[INFO] [stdout]     |  __________________________________________________________^
[INFO] [stdout] 169 | |         Ok(self.to_string())
[INFO] [stdout] 170 | |     }
[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<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:169:9
[INFO] [stdout]     |
[INFO] [stdout] 169 |         Ok(self.to_string())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:186:66
[INFO] [stdout]     |
[INFO] [stdout] 186 |       fn identifier(self) -> Result<String, Self::IdentifierError> {
[INFO] [stdout]     |  __________________________________________________________________^
[INFO] [stdout] 187 | |         Ok(self.to_string())
[INFO] [stdout] 188 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/common/parser/try_into_value.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         Ok(self.to_string())
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `naviz-parser` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "7a2dd94b21328fadefc78e2ca75d806ac9a79296a451e59b995e81ef39a7cde1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a2dd94b21328fadefc78e2ca75d806ac9a79296a451e59b995e81ef39a7cde1", kill_on_drop: false }`
[INFO] [stdout] 7a2dd94b21328fadefc78e2ca75d806ac9a79296a451e59b995e81ef39a7cde1