[INFO] fetching crate webdesserts-confy 1.0.0...
[INFO] testing webdesserts-confy-1.0.0 against 1.47.0 for beta-1.48-1
[INFO] extracting crate webdesserts-confy 1.0.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate webdesserts-confy 1.0.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate webdesserts-confy 1.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate webdesserts-confy 1.0.0
[INFO] tweaked toml for crates.io crate webdesserts-confy 1.0.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate webdesserts-confy 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", 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] d025e489b0f04ff6101867f5d809a1598aa4baae223bcbc57c9f2cd798a31a54
[INFO] running `Command { std: "docker" "start" "-a" "d025e489b0f04ff6101867f5d809a1598aa4baae223bcbc57c9f2cd798a31a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d025e489b0f04ff6101867f5d809a1598aa4baae223bcbc57c9f2cd798a31a54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d025e489b0f04ff6101867f5d809a1598aa4baae223bcbc57c9f2cd798a31a54", kill_on_drop: false }`
[INFO] [stdout] d025e489b0f04ff6101867f5d809a1598aa4baae223bcbc57c9f2cd798a31a54
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 117839b5bbec9bc04d317ae02b980449124e853ca1c4cd7967e3a31da37e9bf2
[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" "117839b5bbec9bc04d317ae02b980449124e853ca1c4cd7967e3a31da37e9bf2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling directories v0.10.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling backtrace v0.3.44
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling webdesserts-confy v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.54s
[INFO] running `Command { std: "docker" "inspect" "117839b5bbec9bc04d317ae02b980449124e853ca1c4cd7967e3a31da37e9bf2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "117839b5bbec9bc04d317ae02b980449124e853ca1c4cd7967e3a31da37e9bf2", kill_on_drop: false }`
[INFO] [stdout] 117839b5bbec9bc04d317ae02b980449124e853ca1c4cd7967e3a31da37e9bf2
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4b897d0ae480b2969973f2ff6e1c7d92283e72add5cb5c6ad8849526adeb32db
[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" "4b897d0ae480b2969973f2ff6e1c7d92283e72add5cb5c6ad8849526adeb32db", kill_on_drop: false }`
[INFO] [stderr]    Compiling webdesserts-confy v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "4b897d0ae480b2969973f2ff6e1c7d92283e72add5cb5c6ad8849526adeb32db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b897d0ae480b2969973f2ff6e1c7d92283e72add5cb5c6ad8849526adeb32db", kill_on_drop: false }`
[INFO] [stdout] 4b897d0ae480b2969973f2ff6e1c7d92283e72add5cb5c6ad8849526adeb32db
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 36f544904341a0ef07d798a0c423f16a37dc4a9537ab02c60550f82c22fe181b
[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" "36f544904341a0ef07d798a0c423f16a37dc4a9537ab02c60550f82c22fe181b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/webdesserts_confy-51a1e3aa933af232
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests webdesserts-confy
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 39) ... FAILED
[INFO] [stdout] test src/lib.rs - load (line 128) ... FAILED
[INFO] [stdout] test src/lib.rs - store (line 171) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 39) stdout ----
[INFO] [stdout] error: cannot find derive macro `Serialize` in this scope
[INFO] [stdout]  --> src/lib.rs:40:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stdout]  --> src/lib.rs:40:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[derive(Serialize, Deserialize)]
[INFO] [stdout]   |                     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `confy`
[INFO] [stdout]   --> src/lib.rs:52:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let cfg = confy::load("my-app-name")?;
[INFO] [stdout]    |               ^^^^^ use of undeclared type or module `confy`
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/lib.rs:51:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn main() -> Result<(), ::std::io::Error> {
[INFO] [stdout]    |    ----      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected enum `std::result::Result`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `std::result::Result<(), std::io::Error>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - load (line 128) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `confy`
[INFO] [stdout]  --> src/lib.rs:133:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | let cfg: MyConfig = confy::load("my-app")?;
[INFO] [stdout]   |                     ^^^^^ use of undeclared type or module `confy`
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `MyConf` in this scope
[INFO] [stdout]  --> src/lib.rs:130:34
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct MyConfig {}
[INFO] [stdout]   | --------------- similarly named struct `MyConfig` defined here
[INFO] [stdout] 4 | impl ::std::default::Default for MyConf {
[INFO] [stdout]   |                                  ^^^^^^ help: a struct with a similar name exists: `MyConfig`
[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 `std::ops::Try`)
[INFO] [stdout]  --> src/lib.rs:133:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | / fn main() {
[INFO] [stdout] 3 | | struct MyConfig {}
[INFO] [stdout] 4 | | impl ::std::default::Default for MyConf {
[INFO] [stdout] 5 | |     fn default() -> Self { Self {} }
[INFO] [stdout] 6 | | }
[INFO] [stdout] 7 | | let cfg: MyConfig = confy::load("my-app")?;
[INFO] [stdout]   | |                     ^^^^^^^^^^^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error[E0071]: expected struct, variant or union type, found type error
[INFO] [stdout]  --> src/lib.rs:131:28
[INFO] [stdout]   |
[INFO] [stdout] 5 |     fn default() -> Self { Self {} }
[INFO] [stdout]   |                            ^^^^ not a struct
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0071, E0277, E0412, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0071`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - store (line 171) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `confy`
[INFO] [stdout]  --> src/lib.rs:174:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | confy::store(my_cfg)?;
[INFO] [stdout]   | ^^^^^ use of undeclared type or module `confy`
[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 `std::ops::Try`)
[INFO] [stdout]  --> src/lib.rs:174:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | / fn main() {
[INFO] [stdout] 3 | | struct MyConf {}
[INFO] [stdout] 4 | | let my_cfg = MyConf {};
[INFO] [stdout] 5 | | confy::store(my_cfg)?;
[INFO] [stdout]   | | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   | | |
[INFO] [stdout]   | | cannot use the `?` operator in a function that returns `()`
[INFO] [stdout] 6 | | }
[INFO] [stdout]   | |_- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `std::ops::Try` is not implemented for `()`
[INFO] [stdout]   = note: required by `std::ops::Try::from_error`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 39)
[INFO] [stdout]     src/lib.rs - load (line 128)
[INFO] [stdout]     src/lib.rs - store (line 171)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "36f544904341a0ef07d798a0c423f16a37dc4a9537ab02c60550f82c22fe181b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f544904341a0ef07d798a0c423f16a37dc4a9537ab02c60550f82c22fe181b", kill_on_drop: false }`
[INFO] [stdout] 36f544904341a0ef07d798a0c423f16a37dc4a9537ab02c60550f82c22fe181b
