[INFO] fetching crate xdg-user 0.2.1...
[INFO] testing xdg-user-0.2.1 against 1.54.0 for beta-1.55-1
[INFO] extracting crate xdg-user 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate xdg-user 0.2.1 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xdg-user 0.2.1
[INFO] finished tweaking crates.io crate xdg-user 0.2.1
[INFO] tweaked toml for crates.io crate xdg-user 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate xdg-user 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72cd5310034bc028c88a8a02b92885c9ccd76ac03e2cbbf46a3c919024437e5c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "72cd5310034bc028c88a8a02b92885c9ccd76ac03e2cbbf46a3c919024437e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72cd5310034bc028c88a8a02b92885c9ccd76ac03e2cbbf46a3c919024437e5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72cd5310034bc028c88a8a02b92885c9ccd76ac03e2cbbf46a3c919024437e5c", kill_on_drop: false }`
[INFO] [stdout] 72cd5310034bc028c88a8a02b92885c9ccd76ac03e2cbbf46a3c919024437e5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 43e81277d0d10f629e7774a1e2bd78e2530ded790cfea3e0f3739dbf367cf569
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "43e81277d0d10f629e7774a1e2bd78e2530ded790cfea3e0f3739dbf367cf569", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling xdg-user v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.02s
[INFO] running `Command { std: "docker" "inspect" "43e81277d0d10f629e7774a1e2bd78e2530ded790cfea3e0f3739dbf367cf569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43e81277d0d10f629e7774a1e2bd78e2530ded790cfea3e0f3739dbf367cf569", kill_on_drop: false }`
[INFO] [stdout] 43e81277d0d10f629e7774a1e2bd78e2530ded790cfea3e0f3739dbf367cf569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71e53a75518b5228207a15281de740c8ee1384b659eb4dc509b2737497419b08
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "71e53a75518b5228207a15281de740c8ee1384b659eb4dc509b2737497419b08", kill_on_drop: false }`
[INFO] [stderr]    Compiling xdg-user v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "71e53a75518b5228207a15281de740c8ee1384b659eb4dc509b2737497419b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71e53a75518b5228207a15281de740c8ee1384b659eb4dc509b2737497419b08", kill_on_drop: false }`
[INFO] [stdout] 71e53a75518b5228207a15281de740c8ee1384b659eb4dc509b2737497419b08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c268a927ef851d16e6db740488901b2487b49f422e62009d734fc6df5b6d79d8
[INFO] running `Command { std: "docker" "start" "-a" "c268a927ef851d16e6db740488901b2487b49f422e62009d734fc6df5b6d79d8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/xdg_user-06b3a6d024d2a854)
[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] [stderr]    Doc-tests xdg-user
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 15) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 15) stdout ----
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:16:55
[INFO] [stdout]    |
[INFO] [stdout] 3  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_15_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 4  | | println!("Pictures folder: {:?}", xdg_user::pictures()?);
[INFO] [stdout]    | |                                                       ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 5  | | println!("Music folder:    {:?}", xdg_user::music()?);
[INFO] [stdout] 6  | |
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | println!("Downloads folder: {:?}", dirs.downloads());
[INFO] [stdout] 10 | | } _doctest_main_src_lib_rs_15_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, xdg_user::Error>>` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:17:52
[INFO] [stdout]    |
[INFO] [stdout] 3  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_15_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 4  | | println!("Pictures folder: {:?}", xdg_user::pictures()?);
[INFO] [stdout] 5  | | println!("Music folder:    {:?}", xdg_user::music()?);
[INFO] [stdout]    | |                                                    ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 6  | |
[INFO] [stdout] ...  |
[INFO] [stdout] 9  | | println!("Downloads folder: {:?}", dirs.downloads());
[INFO] [stdout] 10 | | } _doctest_main_src_lib_rs_15_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, xdg_user::Error>>` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]   --> src/lib.rs:19:37
[INFO] [stdout]    |
[INFO] [stdout] 3  |   fn main() { #[allow(non_snake_case)] fn _doctest_main_src_lib_rs_15_0() {
[INFO] [stdout]    |  ______________________________________-
[INFO] [stdout] 4  | | println!("Pictures folder: {:?}", xdg_user::pictures()?);
[INFO] [stdout] 5  | | println!("Music folder:    {:?}", xdg_user::music()?);
[INFO] [stdout] 6  | |
[INFO] [stdout] 7  | | let dirs = xdg_user::UserDirs::new()?;
[INFO] [stdout]    | |                                     ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 8  | | println!("Documents folder: {:?}", dirs.documents());
[INFO] [stdout] 9  | | println!("Downloads folder: {:?}", dirs.downloads());
[INFO] [stdout] 10 | | } _doctest_main_src_lib_rs_15_0() }
[INFO] [stdout]    | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `FromResidual<Result<Infallible, xdg_user::Error>>` is not implemented for `()`
[INFO] [stdout]    = note: required by `from_residual`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 15)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.20s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "c268a927ef851d16e6db740488901b2487b49f422e62009d734fc6df5b6d79d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c268a927ef851d16e6db740488901b2487b49f422e62009d734fc6df5b6d79d8", kill_on_drop: false }`
[INFO] [stdout] c268a927ef851d16e6db740488901b2487b49f422e62009d734fc6df5b6d79d8
