[INFO] fetching crate pbd 0.5.0...
[INFO] checking pbd-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate pbd 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate pbd 0.5.0
[INFO] finished tweaking crates.io crate pbd 0.5.0
[INFO] tweaked toml for crates.io crate pbd 0.5.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pbd 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 pbd 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 29657c6f5a8f5ae656abc2e621192519d0ca96787432b9db1e5e5dd1a3826c7e
[INFO] running `Command { std: "docker" "start" "-a" "29657c6f5a8f5ae656abc2e621192519d0ca96787432b9db1e5e5dd1a3826c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29657c6f5a8f5ae656abc2e621192519d0ca96787432b9db1e5e5dd1a3826c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29657c6f5a8f5ae656abc2e621192519d0ca96787432b9db1e5e5dd1a3826c7e", kill_on_drop: false }`
[INFO] [stdout] 29657c6f5a8f5ae656abc2e621192519d0ca96787432b9db1e5e5dd1a3826c7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ff122d495d3f1381152701475424a59d2bf78cae368c6b4eabe39cca8e4cf774
[INFO] running `Command { std: "docker" "start" "-a" "ff122d495d3f1381152701475424a59d2bf78cae368c6b4eabe39cca8e4cf774", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `String`
[INFO] [stdout]     --> src/dua/policy.rs:1127:37
[INFO] [stdout]      |
[INFO] [stdout] 1127 |                 Condition::Category(String) => {
[INFO] [stdout]      |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_String`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `String`
[INFO] [stdout]     --> src/dua/policy.rs:1133:36
[INFO] [stdout]      |
[INFO] [stdout] 1133 |                 Condition::Subject(String) => {
[INFO] [stdout]      |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `String`
[INFO] [stdout]     --> src/dua/policy.rs:1139:32
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 Condition::Use(String) => {
[INFO] [stdout]      |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TfIdfzr` is never constructed
[INFO] [stdout]     --> src/dpi/mod.rs:1358:16
[INFO] [stdout]      |
[INFO] [stdout] 1358 |         struct TfIdfzr;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TfIdfzr` is never constructed
[INFO] [stdout]     --> src/dpi/mod.rs:1398:16
[INFO] [stdout]      |
[INFO] [stdout] 1398 |         struct TfIdfzr;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TfIdfzr` is never constructed
[INFO] [stdout]     --> src/dpi/mod.rs:1439:16
[INFO] [stdout]      |
[INFO] [stdout] 1439 |         struct TfIdfzr;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `String` should have a snake case name
[INFO] [stdout]     --> src/dua/policy.rs:1127:37
[INFO] [stdout]      |
[INFO] [stdout] 1127 |                 Condition::Category(String) => {
[INFO] [stdout]      |                                     ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `string`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `String` should have a snake case name
[INFO] [stdout]     --> src/dua/policy.rs:1133:36
[INFO] [stdout]      |
[INFO] [stdout] 1133 |                 Condition::Subject(String) => {
[INFO] [stdout]      |                                    ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `String` should have a snake case name
[INFO] [stdout]     --> src/dua/policy.rs:1139:32
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 Condition::Use(String) => {
[INFO] [stdout]      |                                ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `String`
[INFO] [stdout]     --> src/dua/policy.rs:1127:37
[INFO] [stdout]      |
[INFO] [stdout] 1127 |                 Condition::Category(String) => {
[INFO] [stdout]      |                                     ^^^^^^ help: if this is intentional, prefix it with an underscore: `_String`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `String`
[INFO] [stdout]     --> src/dua/policy.rs:1133:36
[INFO] [stdout]      |
[INFO] [stdout] 1133 |                 Condition::Subject(String) => {
[INFO] [stdout]      |                                    ^^^^^^ help: if this is intentional, prefix it with an underscore: `_String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `String`
[INFO] [stdout]     --> src/dua/policy.rs:1139:32
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 Condition::Use(String) => {
[INFO] [stdout]      |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TfIdfzr` is never constructed
[INFO] [stdout]     --> src/dpi/mod.rs:1358:16
[INFO] [stdout]      |
[INFO] [stdout] 1358 |         struct TfIdfzr;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TfIdfzr` is never constructed
[INFO] [stdout]     --> src/dpi/mod.rs:1398:16
[INFO] [stdout]      |
[INFO] [stdout] 1398 |         struct TfIdfzr;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TfIdfzr` is never constructed
[INFO] [stdout]     --> src/dpi/mod.rs:1439:16
[INFO] [stdout]      |
[INFO] [stdout] 1439 |         struct TfIdfzr;
[INFO] [stdout]      |                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<reference::Lib, Infallible>
[INFO] [stdout]    --> src/dpi/reference.rs:801:34
[INFO] [stdout]     |
[INFO] [stdout] 801 |         let try_successful_lib = Lib::try_from(Lib::TEXT_SSN_ABBR);
[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<reference::Lib, Infallible>
[INFO] [stdout]    --> src/dpi/reference.rs:802:17
[INFO] [stdout]     |
[INFO] [stdout] 802 |         assert!(try_successful_lib.is_ok());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `String` should have a snake case name
[INFO] [stdout]     --> src/dua/policy.rs:1127:37
[INFO] [stdout]      |
[INFO] [stdout] 1127 |                 Condition::Category(String) => {
[INFO] [stdout]      |                                     ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `string`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `String` should have a snake case name
[INFO] [stdout]     --> src/dua/policy.rs:1133:36
[INFO] [stdout]      |
[INFO] [stdout] 1133 |                 Condition::Subject(String) => {
[INFO] [stdout]      |                                    ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `String` should have a snake case name
[INFO] [stdout]     --> src/dua/policy.rs:1139:32
[INFO] [stdout]      |
[INFO] [stdout] 1139 |                 Condition::Use(String) => {
[INFO] [stdout]      |                                ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `string`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pbd` (lib test) due to 2 previous errors; 9 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ff122d495d3f1381152701475424a59d2bf78cae368c6b4eabe39cca8e4cf774", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff122d495d3f1381152701475424a59d2bf78cae368c6b4eabe39cca8e4cf774", kill_on_drop: false }`
[INFO] [stdout] ff122d495d3f1381152701475424a59d2bf78cae368c6b4eabe39cca8e4cf774
