[INFO] fetching crate qargparser 0.5.6...
[INFO] building qargparser-0.5.6 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate qargparser 0.5.6 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate qargparser 0.5.6
[INFO] finished tweaking crates.io crate qargparser 0.5.6
[INFO] tweaked toml for crates.io crate qargparser 0.5.6 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate qargparser 0.5.6 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate qargparser 0.5.6 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qpprint v0.1.1
[INFO] [stderr]   Downloaded terminal_size v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7359a74d518fb565a2cccf5b8cf370a250620e9e9423b4783e532b832f1bab72
[INFO] running `Command { std: "docker" "start" "-a" "7359a74d518fb565a2cccf5b8cf370a250620e9e9423b4783e532b832f1bab72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7359a74d518fb565a2cccf5b8cf370a250620e9e9423b4783e532b832f1bab72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7359a74d518fb565a2cccf5b8cf370a250620e9e9423b4783e532b832f1bab72", kill_on_drop: false }`
[INFO] [stdout] 7359a74d518fb565a2cccf5b8cf370a250620e9e9423b4783e532b832f1bab72
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6096e0c2f74bbfd0bf0a5aa01496b6f304ff9ae90cf8525963a3adf4b8f54900
[INFO] running `Command { std: "docker" "start" "-a" "6096e0c2f74bbfd0bf0a5aa01496b6f304ff9ae90cf8525963a3adf4b8f54900", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling terminal_size v0.1.12
[INFO] [stderr]    Compiling qpprint v0.1.1
[INFO] [stderr]    Compiling qargparser v0.5.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "6096e0c2f74bbfd0bf0a5aa01496b6f304ff9ae90cf8525963a3adf4b8f54900", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6096e0c2f74bbfd0bf0a5aa01496b6f304ff9ae90cf8525963a3adf4b8f54900", kill_on_drop: false }`
[INFO] [stdout] 6096e0c2f74bbfd0bf0a5aa01496b6f304ff9ae90cf8525963a3adf4b8f54900
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d820b9dba3b6013c537a123fae817c4d2dc6c77ced460cc9caaaf6c07c7a5db
[INFO] running `Command { std: "docker" "start" "-a" "4d820b9dba3b6013c537a123fae817c4d2dc6c77ced460cc9caaaf6c07c7a5db", kill_on_drop: false }`
[INFO] [stderr]    Compiling qargparser v0.5.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> tests/posarg.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::RefCell;
[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 import: `std::cell::RefCell`
[INFO] [stdout]  --> tests/exit.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `verbosity` is never read
[INFO] [stdout]  --> examples/usage.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | struct MyContext {
[INFO] [stdout]   |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 9 |   verbosity: u8,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `MyContext` 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: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> tests/tests.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fname` is never read
[INFO] [stdout]  --> tests/exit.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct MyContext {
[INFO] [stdout]   |            --------- field in this struct
[INFO] [stdout] 7 |   do_help: bool,
[INFO] [stdout] 8 |   fname: String,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `file_proc` is never used
[INFO] [stdout]   --> tests/exit.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 | fn file_proc(
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mkfile` is never used
[INFO] [stdout]   --> tests/exit.rs:53:10
[INFO] [stdout]    |
[INFO] [stdout] 53 |   pub fn mkfile() -> super::arg::Spec<super::MyContext> {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> tests/optarg.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `verbosity` is never read
[INFO] [stdout]    --> src/spec.rs:529:16
[INFO] [stdout]     |
[INFO] [stdout] 527 |   pub(super) struct TestCtx {
[INFO] [stdout]     |                     ------- field in this struct
[INFO] [stdout] 528 |     pub(super) do_help: bool,
[INFO] [stdout] 529 |     pub(super) verbosity: u8,
[INFO] [stdout]     |                ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `verbose_proc` is never used
[INFO] [stdout]    --> src/spec.rs:540:17
[INFO] [stdout]     |
[INFO] [stdout] 540 |   pub(super) fn verbose_proc(
[INFO] [stdout]     |                 ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `args_proc` is never used
[INFO] [stdout]    --> src/spec.rs:561:17
[INFO] [stdout]     |
[INFO] [stdout] 561 |   pub(super) fn args_proc(
[INFO] [stdout]     |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mkhelp` is never used
[INFO] [stdout]    --> src/spec.rs:569:17
[INFO] [stdout]     |
[INFO] [stdout] 569 |   pub(super) fn mkhelp(sopt: bool, lopt: bool) -> super::Spec<TestCtx> {
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mkfile` is never used
[INFO] [stdout]    --> src/spec.rs:579:17
[INFO] [stdout]     |
[INFO] [stdout] 579 |   pub(super) fn mkfile(
[INFO] [stdout]     |                 ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mkparam` is never used
[INFO] [stdout]    --> src/spec.rs:604:17
[INFO] [stdout]     |
[INFO] [stdout] 604 |   pub(super) fn mkparam(
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "4d820b9dba3b6013c537a123fae817c4d2dc6c77ced460cc9caaaf6c07c7a5db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d820b9dba3b6013c537a123fae817c4d2dc6c77ced460cc9caaaf6c07c7a5db", kill_on_drop: false }`
[INFO] [stdout] 4d820b9dba3b6013c537a123fae817c4d2dc6c77ced460cc9caaaf6c07c7a5db