[INFO] cloning repository https://github.com/Fergus-Molloy/todo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fergus-Molloy/todo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFergus-Molloy%2Ftodo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFergus-Molloy%2Ftodo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18d6ee10a314be5a9988ba0d29668f653a5d8e9a
[INFO] checking Fergus-Molloy/todo 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%2FFergus-Molloy%2Ftodo" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Fergus-Molloy/todo
[INFO] finished tweaking git repo https://github.com/Fergus-Molloy/todo
[INFO] tweaked toml for git repo https://github.com/Fergus-Molloy/todo written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Fergus-Molloy/todo 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/Fergus-Molloy/todo 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2728dacf687d8690ed1628430351d770a30cb0677625f3ad7731d013a7113798
[INFO] running `Command { std: "docker" "start" "-a" "2728dacf687d8690ed1628430351d770a30cb0677625f3ad7731d013a7113798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2728dacf687d8690ed1628430351d770a30cb0677625f3ad7731d013a7113798", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2728dacf687d8690ed1628430351d770a30cb0677625f3ad7731d013a7113798", kill_on_drop: false }`
[INFO] [stdout] 2728dacf687d8690ed1628430351d770a30cb0677625f3ad7731d013a7113798
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] e03174b882e6c2ca5aebf706e12a320a281fc31f2f9a1bb22cf32286b982fed0
[INFO] running `Command { std: "docker" "start" "-a" "e03174b882e6c2ca5aebf706e12a320a281fc31f2f9a1bb22cf32286b982fed0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking fallible-iterator v0.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking fallible-streaming-iterator v0.1.9
[INFO] [stderr]     Checking hashlink v0.6.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling libsqlite3-sys v0.20.1
[INFO] [stderr]     Checking rusqlite v0.24.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking todo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `id` and `list` are never read
[INFO] [stdout]   --> src/task.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Task {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 30 |     pub id: u32,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub list: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` 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] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | /         /// Remove completed tasks in this list (defaults to active list if not given)
[INFO] [stdout] 14 | |         list: 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<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         /// List containing the task you want to complete (defaults to active if not given)
[INFO] [stdout] 21 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | /         #[structopt(short, long)]
[INFO] [stdout] 28 | |         /// The list containing the task to be altered (defaults to active list if not given)
[INFO] [stdout] 29 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         /// The name of the task list to list tasks from (defaults to active list if not given)
[INFO] [stdout] 39 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         #[structopt(short, long)]
[INFO] [stdout] 41 | |         /// Ordering of the tasks `num` for numerical order or blank for priority ordering
[INFO] [stdout] 42 | |         order: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | /         /// Swap nums on this list (defaults to active list if not given)
[INFO] [stdout] 53 | |         #[structopt(short, long)]
[INFO] [stdout] 54 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         list: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 | /         /// List to update
[INFO] [stdout] 66 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 | /         /// Name of the list to add
[INFO] [stdout] 76 | |         list_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         #[structopt(short, long)]
[INFO] [stdout] 84 | |         /// The list to add the task to (defaults to active list if not given)
[INFO] [stdout] 85 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 | /         /// Name of the list to remove
[INFO] [stdout] 97 | |         list_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/opt.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 | /         /// List to remove the task from (defaults to active list if not given)
[INFO] [stdout] 104 | |         list: Option<String>,
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `todo` (bin "todo" test) due to 12 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: fields `id` and `list` are never read
[INFO] [stdout]   --> src/task.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct Task {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout] 30 |     pub id: u32,
[INFO] [stdout]    |         ^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     pub list: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Task` 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] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | /         /// Remove completed tasks in this list (defaults to active list if not given)
[INFO] [stdout] 14 | |         list: 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<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | /         /// List containing the task you want to complete (defaults to active if not given)
[INFO] [stdout] 21 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 | /         #[structopt(short, long)]
[INFO] [stdout] 28 | |         /// The list containing the task to be altered (defaults to active list if not given)
[INFO] [stdout] 29 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | /         /// The name of the task list to list tasks from (defaults to active list if not given)
[INFO] [stdout] 39 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | /         #[structopt(short, long)]
[INFO] [stdout] 41 | |         /// Ordering of the tasks `num` for numerical order or blank for priority ordering
[INFO] [stdout] 42 | |         order: Option<String>,
[INFO] [stdout]    | |_____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 | /         /// Swap nums on this list (defaults to active list if not given)
[INFO] [stdout] 53 | |         #[structopt(short, long)]
[INFO] [stdout] 54 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:60:9
[INFO] [stdout]    |
[INFO] [stdout] 60 |         list: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 | /         /// List to update
[INFO] [stdout] 66 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 | /         /// Name of the list to add
[INFO] [stdout] 76 | |         list_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | /         #[structopt(short, long)]
[INFO] [stdout] 84 | |         /// The list to add the task to (defaults to active list if not given)
[INFO] [stdout] 85 | |         list: Option<String>,
[INFO] [stdout]    | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/opt.rs:96:9
[INFO] [stdout]    |
[INFO] [stdout] 96 | /         /// Name of the list to remove
[INFO] [stdout] 97 | |         list_name: String,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/opt.rs:103:9
[INFO] [stdout]     |
[INFO] [stdout] 103 | /         /// List to remove the task from (defaults to active list if not given)
[INFO] [stdout] 104 | |         list: Option<String>,
[INFO] [stdout]     | |____________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `todo` (bin "todo") due to 12 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "e03174b882e6c2ca5aebf706e12a320a281fc31f2f9a1bb22cf32286b982fed0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e03174b882e6c2ca5aebf706e12a320a281fc31f2f9a1bb22cf32286b982fed0", kill_on_drop: false }`
[INFO] [stdout] e03174b882e6c2ca5aebf706e12a320a281fc31f2f9a1bb22cf32286b982fed0
