[INFO] cloning repository https://github.com/Recognition2/aurgh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Recognition2/aurgh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRecognition2%2Faurgh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRecognition2%2Faurgh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25c32468893cc6fa4d5db9656cf3047f363ac96e
[INFO] testing Recognition2/aurgh against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRecognition2%2Faurgh" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Recognition2/aurgh on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Recognition2/aurgh
[INFO] finished tweaking git repo https://github.com/Recognition2/aurgh
[INFO] tweaked toml for git repo https://github.com/Recognition2/aurgh written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Recognition2/aurgh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded os_pipe v0.9.1
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded duct v0.13.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b00adbc5f923e43aba3d16997065c42f5ab9659ccc09e7e502bf6ef0e350178
[INFO] running `Command { std: "docker" "start" "-a" "5b00adbc5f923e43aba3d16997065c42f5ab9659ccc09e7e502bf6ef0e350178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b00adbc5f923e43aba3d16997065c42f5ab9659ccc09e7e502bf6ef0e350178", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b00adbc5f923e43aba3d16997065c42f5ab9659ccc09e7e502bf6ef0e350178", kill_on_drop: false }`
[INFO] [stdout] 5b00adbc5f923e43aba3d16997065c42f5ab9659ccc09e7e502bf6ef0e350178
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88cfd67292d98ae1e3e6e7ed79ba1ddac06116e3e659988f20bb44b1748d6f79
[INFO] running `Command { std: "docker" "start" "-a" "88cfd67292d98ae1e3e6e7ed79ba1ddac06116e3e659988f20bb44b1748d6f79", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.68
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling shared_child v0.3.4
[INFO] [stderr]    Compiling os_pipe v0.9.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling duct v0.13.3
[INFO] [stderr]    Compiling aurgh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn add(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]   --> src/main.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn remove(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]    --> src/main.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn addpkg(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]    --> src/main.rs:138:11
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn update(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/main.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .into_iter()
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .iter()
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let pkgs_and_deps: Vec<_> = IntoIterator::into_iter(pkgs)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.95s
[INFO] running `Command { std: "docker" "inspect" "88cfd67292d98ae1e3e6e7ed79ba1ddac06116e3e659988f20bb44b1748d6f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88cfd67292d98ae1e3e6e7ed79ba1ddac06116e3e659988f20bb44b1748d6f79", kill_on_drop: false }`
[INFO] [stdout] 88cfd67292d98ae1e3e6e7ed79ba1ddac06116e3e659988f20bb44b1748d6f79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d8bfc6fe214fc6ee86d5c60f26fa94505165b31dde078330d64a9bcd49d2e273
[INFO] running `Command { std: "docker" "start" "-a" "d8bfc6fe214fc6ee86d5c60f26fa94505165b31dde078330d64a9bcd49d2e273", kill_on_drop: false }`
[INFO] [stderr]    Compiling aurgh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn add(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]   --> src/main.rs:87:11
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn remove(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]    --> src/main.rs:122:11
[INFO] [stdout]     |
[INFO] [stdout] 122 | fn addpkg(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sub`
[INFO] [stdout]    --> src/main.rs:138:11
[INFO] [stdout]     |
[INFO] [stdout] 138 | fn update(sub: &ArgMatches) -> Option<()> {
[INFO] [stdout]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stdout]   --> src/main.rs:46:10
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .into_iter()
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 46 |         .iter()
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let pkgs_and_deps: Vec<_> = IntoIterator::into_iter(pkgs)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^    ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "d8bfc6fe214fc6ee86d5c60f26fa94505165b31dde078330d64a9bcd49d2e273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8bfc6fe214fc6ee86d5c60f26fa94505165b31dde078330d64a9bcd49d2e273", kill_on_drop: false }`
[INFO] [stdout] d8bfc6fe214fc6ee86d5c60f26fa94505165b31dde078330d64a9bcd49d2e273
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6d84a6b68224c42420bc1868a124ea867b25bff88935d64ae19cc9884325243c
[INFO] running `Command { std: "docker" "start" "-a" "6d84a6b68224c42420bc1868a124ea867b25bff88935d64ae19cc9884325243c", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `sub`
[INFO] [stderr]   --> src/main.rs:20:8
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn add(sub: &ArgMatches) -> Option<()> {
[INFO] [stderr]    |        ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub`
[INFO] [stderr]   --> src/main.rs:87:11
[INFO] [stderr]    |
[INFO] [stderr] 87 | fn remove(sub: &ArgMatches) -> Option<()> {
[INFO] [stderr]    |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub`
[INFO] [stderr]    --> src/main.rs:122:11
[INFO] [stderr]     |
[INFO] [stderr] 122 | fn addpkg(sub: &ArgMatches) -> Option<()> {
[INFO] [stderr]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sub`
[INFO] [stderr]    --> src/main.rs:138:11
[INFO] [stderr]     |
[INFO] [stderr] 138 | fn update(sub: &ArgMatches) -> Option<()> {
[INFO] [stderr]     |           ^^^ help: if this is intentional, prefix it with an underscore: `_sub`
[INFO] [stderr] 
[INFO] [stderr] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021.
[INFO] [stderr]   --> src/main.rs:46:10
[INFO] [stderr]    |
[INFO] [stderr] 46 |         .into_iter()
[INFO] [stderr]    |          ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]    = warning: this changes meaning in Rust 2021
[INFO] [stderr]    = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stderr]    |
[INFO] [stderr] 46 |         .iter()
[INFO] [stderr]    |          ^^^^
[INFO] [stderr] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stderr]    |
[INFO] [stderr] 45 |     let pkgs_and_deps: Vec<_> = IntoIterator::into_iter(pkgs)
[INFO] [stderr]    |                                 ^^^^^^^^^^^^^^^^^^^^^^^^    ^
[INFO] [stderr] 
[INFO] [stderr] warning: `aurgh` (bin "aurgh" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/aurgh-699bf0c9aa1b853c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6d84a6b68224c42420bc1868a124ea867b25bff88935d64ae19cc9884325243c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d84a6b68224c42420bc1868a124ea867b25bff88935d64ae19cc9884325243c", kill_on_drop: false }`
[INFO] [stdout] 6d84a6b68224c42420bc1868a124ea867b25bff88935d64ae19cc9884325243c