[INFO] fetching crate argwerk 0.20.0...
[INFO] testing argwerk-0.20.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate argwerk 0.20.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate argwerk 0.20.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate argwerk 0.20.0
[INFO] finished tweaking crates.io crate argwerk 0.20.0
[INFO] tweaked toml for crates.io crate argwerk 0.20.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate argwerk 0.20.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4fe1171450d4fd7d8417c8ab29fad4ee0fbb66f5b1f793c45d416d417c71424
[INFO] running `Command { std: "docker" "start" "-a" "a4fe1171450d4fd7d8417c8ab29fad4ee0fbb66f5b1f793c45d416d417c71424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4fe1171450d4fd7d8417c8ab29fad4ee0fbb66f5b1f793c45d416d417c71424", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fe1171450d4fd7d8417c8ab29fad4ee0fbb66f5b1f793c45d416d417c71424", kill_on_drop: false }`
[INFO] [stdout] a4fe1171450d4fd7d8417c8ab29fad4ee0fbb66f5b1f793c45d416d417c71424
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56a6da762ca451e1fc06213923c1c79b1d1be5ca277871757ed6158635508903
[INFO] running `Command { std: "docker" "start" "-a" "56a6da762ca451e1fc06213923c1c79b1d1be5ca277871757ed6158635508903", kill_on_drop: false }`
[INFO] [stderr]    Compiling argwerk v0.20.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.18s
[INFO] running `Command { std: "docker" "inspect" "56a6da762ca451e1fc06213923c1c79b1d1be5ca277871757ed6158635508903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56a6da762ca451e1fc06213923c1c79b1d1be5ca277871757ed6158635508903", kill_on_drop: false }`
[INFO] [stdout] 56a6da762ca451e1fc06213923c1c79b1d1be5ca277871757ed6158635508903
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53e39d3aa8c565f35b0f3c114900ddcbf1278ca8a6e614b2daf1b90a22ecb2bc
[INFO] running `Command { std: "docker" "start" "-a" "53e39d3aa8c565f35b0f3c114900ddcbf1278ca8a6e614b2daf1b90a22ecb2bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling argwerk v0.20.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `thing`
[INFO] [stdout]   --> examples/tour.rs:43:46
[INFO] [stdout]    |
[INFO] [stdout] 43 |     ["--really-really-really-long-argument", thing] => {
[INFO] [stdout]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_thing`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "53e39d3aa8c565f35b0f3c114900ddcbf1278ca8a6e614b2daf1b90a22ecb2bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53e39d3aa8c565f35b0f3c114900ddcbf1278ca8a6e614b2daf1b90a22ecb2bc", kill_on_drop: false }`
[INFO] [stdout] 53e39d3aa8c565f35b0f3c114900ddcbf1278ca8a6e614b2daf1b90a22ecb2bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b93f5928b5a29e3406312915e1c8552abc4798966d127cae197b48f34b9dcfbf
[INFO] running `Command { std: "docker" "start" "-a" "b93f5928b5a29e3406312915e1c8552abc4798966d127cae197b48f34b9dcfbf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `thing`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> examples/tour.rs:43:46
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 43 |     ["--really-really-really-long-argument", thing] => {
[INFO] [stdout] 
[INFO] [stderr]    |                                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_thing`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `argwerk` (example "tour") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/argwerk-f24eca5c40857957)
[INFO] [stderr]    Doc-tests argwerk
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test src/lib.rs - ErrorKind::Error (line 389) ... ok
[INFO] [stdout] test src/helpers.rs - helpers::Help::format (line 87) ... ok
[INFO] [stdout] test src/lib.rs - define (line 549) ... ok
[INFO] [stdout] test src/lib.rs - ErrorKind::UnsupportedSwitch (line 279) ... ok
[INFO] [stdout] test src/lib.rs - ErrorKind::MissingRequired (line 349) ... ok
[INFO] [stdout] test src/lib.rs - ErrorKind::UnsupportedArgument (line 254) ... ok
[INFO] [stdout] test src/lib.rs - define (line 649) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/lib.rs - ErrorKind::MissingPositional (line 327) ... ok
[INFO] [stdout] test src/lib.rs - define (line 475) ... ok
[INFO] [stdout] test src/lib.rs - define (line 745) ... ok
[INFO] [stdout] test src/lib.rs - args (line 856) ... ok
[INFO] [stdout] test src/lib.rs - define (line 725) ... ok
[INFO] [stdout] test src/lib.rs - define (line 518) ... ok
[INFO] [stdout] test src/lib.rs - define (line 704) ... ok
[INFO] [stdout] test src/lib.rs - define (line 434) ... ok
[INFO] [stdout] test src/lib.rs - define (line 673) ... ok
[INFO] [stdout] test src/lib.rs - define (line 577) ... ok
[INFO] [stdout] test src/lib.rs - (line 74) ... ok
[INFO] [stdout] test src/lib.rs - ErrorKind::MissingSwitchArgument (line 302) ... ok
[INFO] [stdout] test src/lib.rs - define (line 778) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.48s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b93f5928b5a29e3406312915e1c8552abc4798966d127cae197b48f34b9dcfbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b93f5928b5a29e3406312915e1c8552abc4798966d127cae197b48f34b9dcfbf", kill_on_drop: false }`
[INFO] [stdout] b93f5928b5a29e3406312915e1c8552abc4798966d127cae197b48f34b9dcfbf