[INFO] fetching crate phargs-cli 0.1.1...
[INFO] checking phargs-cli-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate phargs-cli 0.1.1 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate phargs-cli 0.1.1
[INFO] finished tweaking crates.io crate phargs-cli 0.1.1
[INFO] tweaked toml for crates.io crate phargs-cli 0.1.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate phargs-cli 0.1.1 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 phargs-cli 0.1.1 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]     Blocking waiting for file lock on package cache
[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] 77a12c54d43087c854c9593ad137161b202af6709853be3f6d11629184c28631
[INFO] running `Command { std: "docker" "start" "-a" "77a12c54d43087c854c9593ad137161b202af6709853be3f6d11629184c28631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77a12c54d43087c854c9593ad137161b202af6709853be3f6d11629184c28631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77a12c54d43087c854c9593ad137161b202af6709853be3f6d11629184c28631", kill_on_drop: false }`
[INFO] [stdout] 77a12c54d43087c854c9593ad137161b202af6709853be3f6d11629184c28631
[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] b3e209446e6f4258229892bf2e3d11a7f4d8075c8f936a5e422a4df1f192d54f
[INFO] running `Command { std: "docker" "start" "-a" "b3e209446e6f4258229892bf2e3d11a7f4d8075c8f936a5e422a4df1f192d54f", kill_on_drop: false }`
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling syn v2.0.67
[INFO] [stderr]     Checking phargs v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling argh_shared v0.1.12
[INFO] [stderr]    Compiling argh_derive v0.1.12
[INFO] [stderr]     Checking argh v0.1.12
[INFO] [stderr]     Checking phargs-cli v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Xargs, Infallible>
[INFO] [stdout]   --> src/bin/phargs.rs:11:53
[INFO] [stdout]    |
[INFO] [stdout] 11 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 12 | |         Ok(Xargs(
[INFO] [stdout] 13 | |             s.split(',').map(|s| s.to_string()).collect::<Vec<_>>(),
[INFO] [stdout] 14 | |         ))
[INFO] [stdout] 15 | |     }
[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<Xargs, Infallible>
[INFO] [stdout]   --> src/bin/phargs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | /         Ok(Xargs(
[INFO] [stdout] 13 | |             s.split(',').map(|s| s.to_string()).collect::<Vec<_>>(),
[INFO] [stdout] 14 | |         ))
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `phargs-cli` (bin "phargs" test) due to 2 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<Xargs, Infallible>
[INFO] [stdout]   --> src/bin/phargs.rs:11:53
[INFO] [stdout]    |
[INFO] [stdout] 11 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 12 | |         Ok(Xargs(
[INFO] [stdout] 13 | |             s.split(',').map(|s| s.to_string()).collect::<Vec<_>>(),
[INFO] [stdout] 14 | |         ))
[INFO] [stdout] 15 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `phargs-cli` (bin "phargs") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Xargs, Infallible>
[INFO] [stdout]   --> src/bin/phargs.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | /         Ok(Xargs(
[INFO] [stdout] 13 | |             s.split(',').map(|s| s.to_string()).collect::<Vec<_>>(),
[INFO] [stdout] 14 | |         ))
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3e209446e6f4258229892bf2e3d11a7f4d8075c8f936a5e422a4df1f192d54f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e209446e6f4258229892bf2e3d11a7f4d8075c8f936a5e422a4df1f192d54f", kill_on_drop: false }`
[INFO] [stdout] b3e209446e6f4258229892bf2e3d11a7f4d8075c8f936a5e422a4df1f192d54f