[INFO] cloning repository https://github.com/uptech/git-ticket-summary
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uptech/git-ticket-summary" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuptech%2Fgit-ticket-summary", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuptech%2Fgit-ticket-summary'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c75f8e527dfbe42e5446bbf28a3ab89ea28fae53
[INFO] checking uptech/git-ticket-summary against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuptech%2Fgit-ticket-summary" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/uptech/git-ticket-summary
[INFO] finished tweaking git repo https://github.com/uptech/git-ticket-summary
[INFO] tweaked toml for git repo https://github.com/uptech/git-ticket-summary written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/uptech/git-ticket-summary 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 git repo https://github.com/uptech/git-ticket-summary 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 784df313ae9ccfb92b48c0a4c3bcf9fabae1ad593fe7cd86e0461d3ae4f5ebff
[INFO] running `Command { std: "docker" "start" "-a" "784df313ae9ccfb92b48c0a4c3bcf9fabae1ad593fe7cd86e0461d3ae4f5ebff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "784df313ae9ccfb92b48c0a4c3bcf9fabae1ad593fe7cd86e0461d3ae4f5ebff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "784df313ae9ccfb92b48c0a4c3bcf9fabae1ad593fe7cd86e0461d3ae4f5ebff", kill_on_drop: false }`
[INFO] [stdout] 784df313ae9ccfb92b48c0a4c3bcf9fabae1ad593fe7cd86e0461d3ae4f5ebff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8e05067366e1f84f24a634163f9679882511f485394340c22ae128b07ca504fa
[INFO] running `Command { std: "docker" "start" "-a" "8e05067366e1f84f24a634163f9679882511f485394340c22ae128b07ca504fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling proc-macro2 v1.0.42
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling unicode-ident v1.0.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking percent-encoding v2.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking unicode-bidi v0.3.8
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking openssl-probe v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling jobserver v0.1.24
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking unicode-normalization v0.1.21
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]    Compiling openssl-sys v0.9.75
[INFO] [stderr]    Compiling libz-sys v1.1.8
[INFO] [stderr]    Compiling libssh2-sys v0.2.23
[INFO] [stderr]    Compiling libgit2-sys v0.13.2+1.4.2
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking git2 v0.14.2
[INFO] [stderr]     Checking git-ticket-summary v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/utils.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |   SpawnFailure(io::Error),
[INFO] [stdout]   |   ------------ ^^^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -   SpawnFailure(io::Error),
[INFO] [stdout] 8 +   SpawnFailure(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/utils.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |   Failure(io::Error),
[INFO] [stdout]   |   ------- ^^^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -   Failure(io::Error),
[INFO] [stdout] 9 +   Failure(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/utils.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |   ExitStatus(i32),
[INFO] [stdout]    |   ---------- ^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -   ExitStatus(i32),
[INFO] [stdout] 10 +   ExitStatus(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/utils.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |   ExitSignal(i32),
[INFO] [stdout]    |   ---------- ^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -   ExitSignal(i32),
[INFO] [stdout] 11 +   ExitSignal(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/utils.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 |   SpawnFailure(io::Error),
[INFO] [stdout]   |   ------------ ^^^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 8 -   SpawnFailure(io::Error),
[INFO] [stdout] 8 +   SpawnFailure(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/utils.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 |   Failure(io::Error),
[INFO] [stdout]   |   ------- ^^^^^^^^^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 -   Failure(io::Error),
[INFO] [stdout] 9 +   Failure(()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/utils.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |   ExitStatus(i32),
[INFO] [stdout]    |   ---------- ^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 10 -   ExitStatus(i32),
[INFO] [stdout] 10 +   ExitStatus(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/utils.rs:11:14
[INFO] [stdout]    |
[INFO] [stdout] 11 |   ExitSignal(i32),
[INFO] [stdout]    |   ---------- ^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ExecuteError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 11 -   ExitSignal(i32),
[INFO] [stdout] 11 +   ExitSignal(()),
[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/main.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   pub ticket_id: 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/main.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | /   #[structopt(default_value = "main", name = "branch")]
[INFO] [stdout] 9 | |   pub branch: 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/main.rs:7:3
[INFO] [stdout]   |
[INFO] [stdout] 7 |   pub ticket_id: 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/main.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 | /   #[structopt(default_value = "main", name = "branch")]
[INFO] [stdout] 9 | |   pub branch: String
[INFO] [stdout]   | |____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `git-ticket-summary` (bin "git-ticket-summary" test) due to 2 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `git-ticket-summary` (bin "git-ticket-summary") due to 2 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "8e05067366e1f84f24a634163f9679882511f485394340c22ae128b07ca504fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e05067366e1f84f24a634163f9679882511f485394340c22ae128b07ca504fa", kill_on_drop: false }`
[INFO] [stdout] 8e05067366e1f84f24a634163f9679882511f485394340c22ae128b07ca504fa
