[INFO] fetching crate changelog-rust 1.1.25...
[INFO] checking changelog-rust-1.1.25 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate changelog-rust 1.1.25 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate changelog-rust 1.1.25
[INFO] finished tweaking crates.io crate changelog-rust 1.1.25
[INFO] tweaked toml for crates.io crate changelog-rust 1.1.25 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate changelog-rust 1.1.25 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 changelog-rust 1.1.25 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] [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-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] 1dee73439d1c40b93d92240d521506c44dc7d4be4cc0f9281a8feff624c0bcc9
[INFO] running `Command { std: "docker" "start" "-a" "1dee73439d1c40b93d92240d521506c44dc7d4be4cc0f9281a8feff624c0bcc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dee73439d1c40b93d92240d521506c44dc7d4be4cc0f9281a8feff624c0bcc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dee73439d1c40b93d92240d521506c44dc7d4be4cc0f9281a8feff624c0bcc9", kill_on_drop: false }`
[INFO] [stdout] 1dee73439d1c40b93d92240d521506c44dc7d4be4cc0f9281a8feff624c0bcc9
[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] f0dd1293d0a774908ed9b9494aad67e00b6ec0e0d7d180ff128d217bbe8a071a
[INFO] running `Command { std: "docker" "start" "-a" "f0dd1293d0a774908ed9b9494aad67e00b6ec0e0d7d180ff128d217bbe8a071a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking strum v0.20.0
[INFO] [stderr]     Checking path-dedot v3.0.12
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking path-absolutize v3.0.10
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking net2 v0.2.37
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking sanitize-filename v0.3.0
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking dialoguer v0.8.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling packer_derive v0.5.3
[INFO] [stderr]    Compiling strum_macros v0.20.1
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking packer v0.5.3
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking changelog-rust v1.1.25 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/generate.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[structopt(
[INFO] [stdout] 14 | |         short = "d",
[INFO] [stdout] 15 | |         help = "optional description for change (for automated generation)"
[INFO] [stdout] 16 | |     )]
[INFO] [stdout] 17 | |     pub description: Option<String>,
[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<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/generate.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(
[INFO] [stdout] 20 | |         short = "t",
[INFO] [stdout] 21 | |         long = "type",
[INFO] [stdout] 22 | |         help = "optional change type (for automated generation)"
[INFO] [stdout] 23 | |     )]
[INFO] [stdout] 24 | |     pub kind: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/init.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     #[structopt(short = "n", long = "appName", help = "name of app")]
[INFO] [stdout] 23 | |     pub app_name: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/merge.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     #[structopt(
[INFO] [stdout] 31 | |         short = "v",
[INFO] [stdout] 32 | |         env = "VERSION",
[INFO] [stdout] 33 | |         help = "version of current release",
[INFO] [stdout] 34 | |         default_value = "0.0.1"
[INFO] [stdout] 35 | |     )]
[INFO] [stdout] 36 | |     pub version: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]  --> src/fs/mod.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let contents = String::from_utf8_lossy(&buf).parse()?;
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/fs/mod.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let contents = String::from_utf8_lossy(&buf).parse()?;
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `changelog-rust` (bin "changelog-rust" test) due to 6 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<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/generate.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     #[structopt(
[INFO] [stdout] 14 | |         short = "d",
[INFO] [stdout] 15 | |         help = "optional description for change (for automated generation)"
[INFO] [stdout] 16 | |     )]
[INFO] [stdout] 17 | |     pub description: Option<String>,
[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<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/generate.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[structopt(
[INFO] [stdout] 20 | |         short = "t",
[INFO] [stdout] 21 | |         long = "type",
[INFO] [stdout] 22 | |         help = "optional change type (for automated generation)"
[INFO] [stdout] 23 | |     )]
[INFO] [stdout] 24 | |     pub kind: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/init.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | /     #[structopt(short = "n", long = "appName", help = "name of app")]
[INFO] [stdout] 23 | |     pub app_name: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/cli/merge.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | /     #[structopt(
[INFO] [stdout] 31 | |         short = "v",
[INFO] [stdout] 32 | |         env = "VERSION",
[INFO] [stdout] 33 | |         help = "version of current release",
[INFO] [stdout] 34 | |         default_value = "0.0.1"
[INFO] [stdout] 35 | |     )]
[INFO] [stdout] 36 | |     pub version: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]  --> src/fs/mod.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let contents = String::from_utf8_lossy(&buf).parse()?;
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/fs/mod.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let contents = String::from_utf8_lossy(&buf).parse()?;
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `changelog-rust` (bin "changelog-rust") due to 6 previous errors
[INFO] running `Command { std: "docker" "inspect" "f0dd1293d0a774908ed9b9494aad67e00b6ec0e0d7d180ff128d217bbe8a071a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0dd1293d0a774908ed9b9494aad67e00b6ec0e0d7d180ff128d217bbe8a071a", kill_on_drop: false }`
[INFO] [stdout] f0dd1293d0a774908ed9b9494aad67e00b6ec0e0d7d180ff128d217bbe8a071a
