[INFO] fetching crate dts 0.6.12...
[INFO] checking dts-0.6.12 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate dts 0.6.12 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate dts 0.6.12
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate dts 0.6.12
[INFO] tweaked toml for crates.io crate dts 0.6.12 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dts 0.6.12 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 dts 0.6.12 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 63ae862ccfdbb3bb3175f8712d8a71d48374ac71f2e378c33286f08c84a39f34
[INFO] running `Command { std: "docker" "start" "-a" "63ae862ccfdbb3bb3175f8712d8a71d48374ac71f2e378c33286f08c84a39f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "63ae862ccfdbb3bb3175f8712d8a71d48374ac71f2e378c33286f08c84a39f34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63ae862ccfdbb3bb3175f8712d8a71d48374ac71f2e378c33286f08c84a39f34", kill_on_drop: false }`
[INFO] [stdout] 63ae862ccfdbb3bb3175f8712d8a71d48374ac71f2e378c33286f08c84a39f34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2737a4c60e78c7dd255bfcac1bb4e6fa05537a38ce9296d6657e6bc003a64183
[INFO] running `Command { std: "docker" "start" "-a" "2737a4c60e78c7dd255bfcac1bb4e6fa05537a38ce9296d6657e6bc003a64183", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]     Checking aho-corasick v1.1.3
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[INFO] [stderr]    Compiling regex-syntax v0.8.6
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[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]    Compiling toml_datetime v0.6.11
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[INFO] [stderr]     Checking rustls-webpki v0.103.7
[INFO] [stderr]     Checking json5 v0.4.1
[INFO] [stderr]     Checking predicates v3.1.3
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]     Checking pretty_assertions v1.4.1
[INFO] [stderr]     Checking temp-env v0.3.6
[INFO] [stderr]    Compiling serde_with_macros v3.15.0
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]     Checking hcl-rs v0.19.2
[INFO] [stderr]     Checking criterion v0.7.0
[INFO] [stderr]     Checking onig v6.5.1
[INFO] [stderr]    Compiling serde_with v3.15.0
[INFO] [stderr]     Checking syntect v5.3.0
[INFO] [stderr]    Compiling toml v0.8.23
[INFO] [stderr]    Compiling bat v0.25.0
[INFO] [stderr]     Checking ureq v3.1.2
[INFO] [stderr]     Checking dts v0.6.12 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:45:53
[INFO] [stdout]    |
[INFO] [stdout] 45 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 46 | |         Ok(From::from(s))
[INFO] [stdout] 47 | |     }
[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: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(From::from(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:104:53
[INFO] [stdout]     |
[INFO] [stdout] 104 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 105 | |         Ok(From::from(s))
[INFO] [stdout] 106 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         Ok(From::from(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dts` (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: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:45:53
[INFO] [stdout]    |
[INFO] [stdout] 45 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 46 | |         Ok(From::from(s))
[INFO] [stdout] 47 | |     }
[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: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |         Ok(From::from(s))
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:70:20
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(Sink::from_str("-"), Ok(Sink::Stdout));
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:70:41
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(Sink::from_str("-"), Ok(Sink::Stdout));
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(Sink::from_str("-"), Ok(Sink::Stdout));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:70:9
[INFO] [stdout]    |
[INFO] [stdout] 70 |         assert_eq!(Sink::from_str("-"), Ok(Sink::Stdout));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:72:13
[INFO] [stdout]    |
[INFO] [stdout] 72 |             Sink::from_str("foo.json"),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             Ok(Sink::Path(PathBuf::from("foo.json")))
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         assert_eq!(
[INFO] [stdout] 72 | |             Sink::from_str("foo.json"),
[INFO] [stdout] 73 | |             Ok(Sink::Path(PathBuf::from("foo.json")))
[INFO] [stdout] 74 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<sink::Sink, Infallible>
[INFO] [stdout]   --> src/sink.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 | /         assert_eq!(
[INFO] [stdout] 72 | |             Sink::from_str("foo.json"),
[INFO] [stdout] 73 | |             Ok(Sink::Path(PathBuf::from("foo.json")))
[INFO] [stdout] 74 | |         );
[INFO] [stdout]    | |_________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:104:53
[INFO] [stdout]     |
[INFO] [stdout] 104 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 105 | |         Ok(From::from(s))
[INFO] [stdout] 106 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |         Ok(From::from(s))
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:186:20
[INFO] [stdout]     |
[INFO] [stdout] 186 |         assert_eq!(Source::from_str("-"), Ok(Source::Stdin));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:186:43
[INFO] [stdout]     |
[INFO] [stdout] 186 |         assert_eq!(Source::from_str("-"), Ok(Source::Stdin));
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         assert_eq!(Source::from_str("-"), Ok(Source::Stdin));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         assert_eq!(Source::from_str("-"), Ok(Source::Stdin));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 188 |             Source::from_str("foo.json"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:189:13
[INFO] [stdout]     |
[INFO] [stdout] 189 |             Ok(Source::Path(PathBuf::from("foo.json")))
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 | /         assert_eq!(
[INFO] [stdout] 188 | |             Source::from_str("foo.json"),
[INFO] [stdout] 189 | |             Ok(Source::Path(PathBuf::from("foo.json")))
[INFO] [stdout] 190 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 | /         assert_eq!(
[INFO] [stdout] 188 | |             Source::from_str("foo.json"),
[INFO] [stdout] 189 | |             Ok(Source::Path(PathBuf::from("foo.json")))
[INFO] [stdout] 190 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:192:13
[INFO] [stdout]     |
[INFO] [stdout] 192 |             Source::from_str("http://localhost/foo.json"),
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:193:13
[INFO] [stdout]     |
[INFO] [stdout] 193 | /             Ok(Source::Url(
[INFO] [stdout] 194 | |                 Url::from_str("http://localhost/foo.json").unwrap()
[INFO] [stdout] 195 | |             ))
[INFO] [stdout]     | |______________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         assert_eq!(
[INFO] [stdout] 192 | |             Source::from_str("http://localhost/foo.json"),
[INFO] [stdout] 193 | |             Ok(Source::Url(
[INFO] [stdout] 194 | |                 Url::from_str("http://localhost/foo.json").unwrap()
[INFO] [stdout] 195 | |             ))
[INFO] [stdout] 196 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<source::Source, Infallible>
[INFO] [stdout]    --> src/source.rs:191:9
[INFO] [stdout]     |
[INFO] [stdout] 191 | /         assert_eq!(
[INFO] [stdout] 192 | |             Source::from_str("http://localhost/foo.json"),
[INFO] [stdout] 193 | |             Ok(Source::Url(
[INFO] [stdout] 194 | |                 Url::from_str("http://localhost/foo.json").unwrap()
[INFO] [stdout] 195 | |             ))
[INFO] [stdout] 196 | |         );
[INFO] [stdout]     | |_________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::assert_eq` which comes from the expansion of the macro `assert_eq` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dts` (lib test) due to 24 previous errors
[INFO] running `Command { std: "docker" "inspect" "2737a4c60e78c7dd255bfcac1bb4e6fa05537a38ce9296d6657e6bc003a64183", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2737a4c60e78c7dd255bfcac1bb4e6fa05537a38ce9296d6657e6bc003a64183", kill_on_drop: false }`
[INFO] [stdout] 2737a4c60e78c7dd255bfcac1bb4e6fa05537a38ce9296d6657e6bc003a64183
