[INFO] cloning repository https://github.com/bradyjoslin/rust-cli-template
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bradyjoslin/rust-cli-template" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbradyjoslin%2Frust-cli-template", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbradyjoslin%2Frust-cli-template'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a098009a4a9b7c3e20b2a1eb2c99732bdd95967
[INFO] checking bradyjoslin/rust-cli-template 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%2Fbradyjoslin%2Frust-cli-template" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bradyjoslin/rust-cli-template
[INFO] finished tweaking git repo https://github.com/bradyjoslin/rust-cli-template
[INFO] tweaked toml for git repo https://github.com/bradyjoslin/rust-cli-template written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bradyjoslin/rust-cli-template 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/bradyjoslin/rust-cli-template 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-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] c234008d82117ed9fd8b1f821ccfedb4e07c26b98e1b58d45c2705e5d0b98808
[INFO] running `Command { std: "docker" "start" "-a" "c234008d82117ed9fd8b1f821ccfedb4e07c26b98e1b58d45c2705e5d0b98808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c234008d82117ed9fd8b1f821ccfedb4e07c26b98e1b58d45c2705e5d0b98808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c234008d82117ed9fd8b1f821ccfedb4e07c26b98e1b58d45c2705e5d0b98808", kill_on_drop: false }`
[INFO] [stdout] c234008d82117ed9fd8b1f821ccfedb4e07c26b98e1b58d45c2705e5d0b98808
[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] 318021806e818777aa1df1967cd038de007d7cb91861e24e9dbd62201728bf05
[INFO] running `Command { std: "docker" "start" "-a" "318021806e818777aa1df1967cd038de007d7cb91861e24e9dbd62201728bf05", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling version_check v0.9.1
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking predicates v2.0.1
[INFO] [stderr]     Checking assert_cmd v2.0.3
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking rust-cli-template v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/app.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | /     /// Example required input.
[INFO] [stdout]  9 | |     #[structopt(short, long)]
[INFO] [stdout] 10 | |     pub gimme: 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/app.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Example optional input.
[INFO] [stdout] 13 | |     #[structopt(short, long, default_value)]
[INFO] [stdout] 14 | |     pub perhaps: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/app.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     /// Positional input. Required.
[INFO] [stdout] 21 | |     pub positional: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-cli-template` (bin "rust-cli-template" test) due to 3 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<String, Infallible>
[INFO] [stdout]   --> src/app.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | /     /// Example required input.
[INFO] [stdout]  9 | |     #[structopt(short, long)]
[INFO] [stdout] 10 | |     pub gimme: 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/app.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     /// Example optional input.
[INFO] [stdout] 13 | |     #[structopt(short, long, default_value)]
[INFO] [stdout] 14 | |     pub perhaps: String,
[INFO] [stdout]    | |_______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/app.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     /// Positional input. Required.
[INFO] [stdout] 21 | |     pub positional: String,
[INFO] [stdout]    | |__________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-cli-template` (bin "rust-cli-template") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "318021806e818777aa1df1967cd038de007d7cb91861e24e9dbd62201728bf05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "318021806e818777aa1df1967cd038de007d7cb91861e24e9dbd62201728bf05", kill_on_drop: false }`
[INFO] [stdout] 318021806e818777aa1df1967cd038de007d7cb91861e24e9dbd62201728bf05