[INFO] fetching crate risect 0.1.0-alpha.1...
[INFO] checking risect-0.1.0-alpha.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate risect 0.1.0-alpha.1 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate risect 0.1.0-alpha.1
[INFO] finished tweaking crates.io crate risect 0.1.0-alpha.1
[INFO] tweaked toml for crates.io crate risect 0.1.0-alpha.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate risect 0.1.0-alpha.1 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 risect 0.1.0-alpha.1 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] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] f57c5e2cf4f0c661d7ad5b2f5c27d56b9fe5c73d340e403206aa800d07e8d67e
[INFO] running `Command { std: "docker" "start" "-a" "f57c5e2cf4f0c661d7ad5b2f5c27d56b9fe5c73d340e403206aa800d07e8d67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f57c5e2cf4f0c661d7ad5b2f5c27d56b9fe5c73d340e403206aa800d07e8d67e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f57c5e2cf4f0c661d7ad5b2f5c27d56b9fe5c73d340e403206aa800d07e8d67e", kill_on_drop: false }`
[INFO] [stdout] f57c5e2cf4f0c661d7ad5b2f5c27d56b9fe5c73d340e403206aa800d07e8d67e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] c6efd3d1d88d5b5aca7ea269a89c0df79a58f0a99647acb83f51f847f1cc4bc4
[INFO] running `Command { std: "docker" "start" "-a" "c6efd3d1d88d5b5aca7ea269a89c0df79a58f0a99647acb83f51f847f1cc4bc4", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling syn v1.0.29
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]     Checking os_str_bytes v2.3.1
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling quote v1.0.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.12
[INFO] [stderr]    Compiling proc-macro-error v0.4.12
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.1
[INFO] [stderr]     Checking clap v3.0.0-beta.1
[INFO] [stderr]     Checking risect v0.1.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `AppSettings`, `App`, `ArgGroup`, and `Arg`
[INFO] [stdout]  --> src/cli.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::{App, AppSettings, Arg, ArgGroup};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^^  ^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AppSettings`, `App`, `ArgGroup`, and `Arg`
[INFO] [stdout]  --> src/cli.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use clap::{App, AppSettings, Arg, ArgGroup};
[INFO] [stdout]   |            ^^^  ^^^^^^^^^^^  ^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stdin`, `path`, `checkout`, `parallel`, and `verbose` are never read
[INFO] [stdout]   --> src/cli.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Opts {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout]  9 |     #[clap(long)]
[INFO] [stdout] 10 |     pub stdin: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub path: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 27 |     #[clap(long)]
[INFO] [stdout] 28 |     pub checkout: Option<bool>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 29 |     #[clap(long, default_value = "1")]
[INFO] [stdout] 30 |     pub parallel: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 31 |     #[clap(long)]
[INFO] [stdout] 32 |     pub verbose: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stdin`, `path`, `checkout`, `parallel`, and `verbose` are never read
[INFO] [stdout]   --> src/cli.rs:10:6
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct Opts {
[INFO] [stdout]    |            ---- fields in this struct
[INFO] [stdout]  9 |     #[clap(long)]
[INFO] [stdout] 10 |     pub stdin: bool,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     pub path: Option<String>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 27 |     #[clap(long)]
[INFO] [stdout] 28 |     pub checkout: Option<bool>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 29 |     #[clap(long, default_value = "1")]
[INFO] [stdout] 30 |     pub parallel: usize,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 31 |     #[clap(long)]
[INFO] [stdout] 32 |     pub verbose: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[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/cli.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     #[clap(long)]
[INFO] [stdout] 12 | |     pub custom: 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/cli.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[clap(long)]
[INFO] [stdout] 18 | |     pub from: 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/cli.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[clap(long)]
[INFO] [stdout] 20 | |     pub from_date: 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/cli.rs:11:2
[INFO] [stdout]    |
[INFO] [stdout] 11 | /     #[clap(long)]
[INFO] [stdout] 12 | |     pub custom: 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/cli.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     #[clap(long)]
[INFO] [stdout] 22 | |     pub to: 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/cli.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     #[clap(long)]
[INFO] [stdout] 24 | |     pub to_date: 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/cli.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[clap(long)]
[INFO] [stdout] 26 | |     pub path: 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/cli.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     #[clap()]
[INFO] [stdout] 34 | |     test_cmd: Vec<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cli.rs:17:2
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     #[clap(long)]
[INFO] [stdout] 18 | |     pub from: 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/cli.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     #[clap(long)]
[INFO] [stdout] 20 | |     pub from_date: 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/cli.rs:21:2
[INFO] [stdout]    |
[INFO] [stdout] 21 | /     #[clap(long)]
[INFO] [stdout] 22 | |     pub to: 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/cli.rs:23:2
[INFO] [stdout]    |
[INFO] [stdout] 23 | /     #[clap(long)]
[INFO] [stdout] 24 | |     pub to_date: 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/cli.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 | /     #[clap(long)]
[INFO] [stdout] 26 | |     pub path: 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/cli.rs:33:2
[INFO] [stdout]    |
[INFO] [stdout] 33 | /     #[clap()]
[INFO] [stdout] 34 | |     test_cmd: Vec<String>,
[INFO] [stdout]    | |_________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `risect` (bin "risect") due to 7 previous errors; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `risect` (bin "risect" test) due to 7 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c6efd3d1d88d5b5aca7ea269a89c0df79a58f0a99647acb83f51f847f1cc4bc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6efd3d1d88d5b5aca7ea269a89c0df79a58f0a99647acb83f51f847f1cc4bc4", kill_on_drop: false }`
[INFO] [stdout] c6efd3d1d88d5b5aca7ea269a89c0df79a58f0a99647acb83f51f847f1cc4bc4