[INFO] cloning repository https://github.com/drusellers/ripley
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/drusellers/ripley" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrusellers%2Fripley", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdrusellers%2Fripley'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b5d37cae51136c6fd24b028d50f3ab9749aa34d
[INFO] checking drusellers/ripley 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%2Fdrusellers%2Fripley" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/drusellers/ripley
[INFO] finished tweaking git repo https://github.com/drusellers/ripley
[INFO] tweaked toml for git repo https://github.com/drusellers/ripley written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/drusellers/ripley 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/drusellers/ripley 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] 6ce738c5aafa237e3b01af95204f58b69f37cd5c09f9d0d88bc96aadc7e2dce0
[INFO] running `Command { std: "docker" "start" "-a" "6ce738c5aafa237e3b01af95204f58b69f37cd5c09f9d0d88bc96aadc7e2dce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6ce738c5aafa237e3b01af95204f58b69f37cd5c09f9d0d88bc96aadc7e2dce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6ce738c5aafa237e3b01af95204f58b69f37cd5c09f9d0d88bc96aadc7e2dce0", kill_on_drop: false }`
[INFO] [stdout] 6ce738c5aafa237e3b01af95204f58b69f37cd5c09f9d0d88bc96aadc7e2dce0
[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] e8c441f54d02e5cd9054653bdc6303330b4d90f10a61430ed4160ddf449ff4ae
[INFO] running `Command { std: "docker" "start" "-a" "e8c441f54d02e5cd9054653bdc6303330b4d90f10a61430ed4160ddf449ff4ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling syn v2.0.91
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking indexmap v2.7.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]     Checking serde_yaml v0.9.34+deprecated
[INFO] [stderr]     Checking ripley v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `tool`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         tool: Option<ToolOptions>,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_tool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `project`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         project: Option<ProjectOptions>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_project`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `database` is never read
[INFO] [stdout]   --> src/config.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct RunOptions {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 62 |     database: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RunOptions` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MigrationTool` is never used
[INFO] [stdout]  --> src/tools/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait MigrationTool {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Database` is never used
[INFO] [stdout]  --> src/engines/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Database {
[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/config.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     #[structopt(short, long)]
[INFO] [stdout] 62 | |     database: 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/config.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Create { name: String },
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ripley` (bin "ripley") due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `tool`
[INFO] [stdout]   --> src/main.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         tool: Option<ToolOptions>,
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_tool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `project`
[INFO] [stdout]   --> src/main.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |         project: Option<ProjectOptions>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_project`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `database` is never read
[INFO] [stdout]   --> src/config.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct RunOptions {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 62 |     database: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RunOptions` 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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `MigrationTool` is never used
[INFO] [stdout]  --> src/tools/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait MigrationTool {
[INFO] [stdout]   |           ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Database` is never used
[INFO] [stdout]  --> src/engines/mod.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait Database {
[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/config.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | /     #[structopt(short, long)]
[INFO] [stdout] 62 | |     database: 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/config.rs:90:14
[INFO] [stdout]    |
[INFO] [stdout] 90 |     Create { name: String },
[INFO] [stdout]    |              ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ripley` (bin "ripley" test) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "e8c441f54d02e5cd9054653bdc6303330b4d90f10a61430ed4160ddf449ff4ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c441f54d02e5cd9054653bdc6303330b4d90f10a61430ed4160ddf449ff4ae", kill_on_drop: false }`
[INFO] [stdout] e8c441f54d02e5cd9054653bdc6303330b4d90f10a61430ed4160ddf449ff4ae