[INFO] crate mail-core 0.6.2 is already in cache
[INFO] testing mail-core-0.6.2 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate mail-core 0.6.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mail-core 0.6.2 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate mail-core 0.6.2
[INFO] finished tweaking crates.io crate mail-core 0.6.2
[INFO] tweaked toml for crates.io crate mail-core 0.6.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 16b67bc5f108072fb2c5aefca78192e3ed234be2481ae0b7cf1ce6355edb5cdc
[INFO] running `"docker" "start" "-a" "16b67bc5f108072fb2c5aefca78192e3ed234be2481ae0b7cf1ce6355edb5cdc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling vec1 v1.5.0
[INFO] [stderr]    Compiling mail-internals v0.2.3
[INFO] [stderr]    Compiling mail-headers v0.6.6
[INFO] [stderr]    Compiling mail-core v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type SendBoxFuture<I, E> = Box<Future<Item=I, Error=E> + Send + 'static>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=I, Error=E> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mail.rs:600:17
[INFO] [stderr]     |
[INFO] [stderr] 600 |             let mut headers: &mut HeaderMap = headers;
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/resource/loading.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 |                     mem::replace(resource_ref, new_resource.to_resource());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:466:21
[INFO] [stderr]     |
[INFO] [stderr] 466 | /                     mem::replace(
[INFO] [stderr] 467 | |                         &mut self.inner,
[INFO] [stderr] 468 | |                         InnerMailFuture::Loading {
[INFO] [stderr] 469 | |                             mail, ctx,
[INFO] [stderr] 470 | |                             pending: future::join_all(futures)
[INFO] [stderr] 471 | |                         }
[INFO] [stderr] 472 | |                     );
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:478:29
[INFO] [stderr]     |
[INFO] [stderr] 478 | / ...                   mem::replace(
[INFO] [stderr] 479 | | ...                       &mut self.inner,
[INFO] [stderr] 480 | | ...                       InnerMailFuture::Loading { mail, pending, ctx }
[INFO] [stderr] 481 | | ...                   );
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:554:9
[INFO] [stderr]     |
[INFO] [stderr] 554 |         mem::replace(resource, Resource::EncData(enc_data));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.88s
[INFO] running `"docker" "inspect" "16b67bc5f108072fb2c5aefca78192e3ed234be2481ae0b7cf1ce6355edb5cdc"`
[INFO] running `"docker" "rm" "-f" "16b67bc5f108072fb2c5aefca78192e3ed234be2481ae0b7cf1ce6355edb5cdc"`
[INFO] [stdout] 16b67bc5f108072fb2c5aefca78192e3ed234be2481ae0b7cf1ce6355edb5cdc
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 32fbcb5285e821317b363546c9b7ee99c4a719714f7ae41a6359e8de073ae92f
[INFO] running `"docker" "start" "-a" "32fbcb5285e821317b363546c9b7ee99c4a719714f7ae41a6359e8de073ae92f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type SendBoxFuture<I, E> = Box<Future<Item=I, Error=E> + Send + 'static>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=I, Error=E> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mail.rs:600:17
[INFO] [stderr]     |
[INFO] [stderr] 600 |             let mut headers: &mut HeaderMap = headers;
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/resource/loading.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 |                     mem::replace(resource_ref, new_resource.to_resource());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:466:21
[INFO] [stderr]     |
[INFO] [stderr] 466 | /                     mem::replace(
[INFO] [stderr] 467 | |                         &mut self.inner,
[INFO] [stderr] 468 | |                         InnerMailFuture::Loading {
[INFO] [stderr] 469 | |                             mail, ctx,
[INFO] [stderr] 470 | |                             pending: future::join_all(futures)
[INFO] [stderr] 471 | |                         }
[INFO] [stderr] 472 | |                     );
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:478:29
[INFO] [stderr]     |
[INFO] [stderr] 478 | / ...                   mem::replace(
[INFO] [stderr] 479 | | ...                       &mut self.inner,
[INFO] [stderr] 480 | | ...                       InnerMailFuture::Loading { mail, pending, ctx }
[INFO] [stderr] 481 | | ...                   );
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:554:9
[INFO] [stderr]     |
[INFO] [stderr] 554 |         mem::replace(resource, Resource::EncData(enc_data));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling mail-core v0.6.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type SendBoxFuture<I, E> = Box<Future<Item=I, Error=E> + Send + 'static>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=I, Error=E> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mail.rs:600:17
[INFO] [stderr]     |
[INFO] [stderr] 600 |             let mut headers: &mut HeaderMap = headers;
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/resource/loading.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 |                     mem::replace(resource_ref, new_resource.to_resource());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:466:21
[INFO] [stderr]     |
[INFO] [stderr] 466 | /                     mem::replace(
[INFO] [stderr] 467 | |                         &mut self.inner,
[INFO] [stderr] 468 | |                         InnerMailFuture::Loading {
[INFO] [stderr] 469 | |                             mail, ctx,
[INFO] [stderr] 470 | |                             pending: future::join_all(futures)
[INFO] [stderr] 471 | |                         }
[INFO] [stderr] 472 | |                     );
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:478:29
[INFO] [stderr]     |
[INFO] [stderr] 478 | / ...                   mem::replace(
[INFO] [stderr] 479 | | ...                       &mut self.inner,
[INFO] [stderr] 480 | | ...                       InnerMailFuture::Loading { mail, pending, ctx }
[INFO] [stderr] 481 | | ...                   );
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:554:9
[INFO] [stderr]     |
[INFO] [stderr] 554 |         mem::replace(resource, Resource::EncData(enc_data));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.48s
[INFO] running `"docker" "inspect" "32fbcb5285e821317b363546c9b7ee99c4a719714f7ae41a6359e8de073ae92f"`
[INFO] running `"docker" "rm" "-f" "32fbcb5285e821317b363546c9b7ee99c4a719714f7ae41a6359e8de073ae92f"`
[INFO] [stdout] 32fbcb5285e821317b363546c9b7ee99c4a719714f7ae41a6359e8de073ae92f
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b0444b22017e364617d663adaff2ac9ecd32d63c0e5441b4359f59c95174fd3
[INFO] running `"docker" "start" "-a" "0b0444b22017e364617d663adaff2ac9ecd32d63c0e5441b4359f59c95174fd3"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type SendBoxFuture<I, E> = Box<Future<Item=I, Error=E> + Send + 'static>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=I, Error=E> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mail.rs:600:17
[INFO] [stderr]     |
[INFO] [stderr] 600 |             let mut headers: &mut HeaderMap = headers;
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/resource/loading.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 |                     mem::replace(resource_ref, new_resource.to_resource());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:466:21
[INFO] [stderr]     |
[INFO] [stderr] 466 | /                     mem::replace(
[INFO] [stderr] 467 | |                         &mut self.inner,
[INFO] [stderr] 468 | |                         InnerMailFuture::Loading {
[INFO] [stderr] 469 | |                             mail, ctx,
[INFO] [stderr] 470 | |                             pending: future::join_all(futures)
[INFO] [stderr] 471 | |                         }
[INFO] [stderr] 472 | |                     );
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:478:29
[INFO] [stderr]     |
[INFO] [stderr] 478 | / ...                   mem::replace(
[INFO] [stderr] 479 | | ...                       &mut self.inner,
[INFO] [stderr] 480 | | ...                       InnerMailFuture::Loading { mail, pending, ctx }
[INFO] [stderr] 481 | | ...                   );
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:554:9
[INFO] [stderr]     |
[INFO] [stderr] 554 |         mem::replace(resource, Resource::EncData(enc_data));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/error.rs:78:32
[INFO] [stderr]    |
[INFO] [stderr] 78 |     fn cause(&self) -> Option<&Fail> {
[INFO] [stderr]    |                                ^^^^ help: use `dyn`: `dyn Fail`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/utils.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub type SendBoxFuture<I, E> = Box<Future<Item=I, Error=E> + Send + 'static>;
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item=I, Error=E> + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/mail.rs:600:17
[INFO] [stderr]     |
[INFO] [stderr] 600 |             let mut headers: &mut HeaderMap = headers;
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/resource/loading.rs:184:21
[INFO] [stderr]     |
[INFO] [stderr] 184 |                     mem::replace(resource_ref, new_resource.to_resource());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:466:21
[INFO] [stderr]     |
[INFO] [stderr] 466 | /                     mem::replace(
[INFO] [stderr] 467 | |                         &mut self.inner,
[INFO] [stderr] 468 | |                         InnerMailFuture::Loading {
[INFO] [stderr] 469 | |                             mail, ctx,
[INFO] [stderr] 470 | |                             pending: future::join_all(futures)
[INFO] [stderr] 471 | |                         }
[INFO] [stderr] 472 | |                     );
[INFO] [stderr]     | |______________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:478:29
[INFO] [stderr]     |
[INFO] [stderr] 478 | / ...                   mem::replace(
[INFO] [stderr] 479 | | ...                       &mut self.inner,
[INFO] [stderr] 480 | | ...                       InnerMailFuture::Loading { mail, pending, ctx }
[INFO] [stderr] 481 | | ...                   );
[INFO] [stderr]     | |________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]    --> src/mail.rs:554:9
[INFO] [stderr]     |
[INFO] [stderr] 554 |         mem::replace(resource, Resource::EncData(enc_data));
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.19s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mail_core-847120e60b715ac4
[INFO] [stdout] 
[INFO] [stdout] running 21 tests
[INFO] [stdout] test default_impl::message_id_gen::test::HashedIdGen::generate_content_id::should_always_return_a_new_id ... ok
[INFO] [stdout] test mail::test::EncodableMail::runs_contextual_validators ... ok
[INFO] [stdout] test default_impl::cpupool::test::check_if_it_works ... ok
[INFO] [stdout] test iri::test::scheme_is_lowercase ... ok
[INFO] [stdout] test iri::test::replacing_tail_does_that ... ok
[INFO] [stdout] test iri::test::scheme_is_always_lower_case ... ok
[INFO] [stdout] test iri::test::scheme_name_has_to_be_valid ... ok
[INFO] [stdout] test iri::test::split_correctly_excluding_colon ... ok
[INFO] [stdout] test mail::test::EncodableMail::checks_there_is_from ... ok
[INFO] [stdout] test mime::test::write_random_boundary_to::boundary_does_not_contain_space_or_slach_or_quotes ... ok
[INFO] [stdout] test mime::test::write_random_boundary_to::boundary_has_a_resonable_length ... ok
[INFO] [stdout] test mail::test::Mail::insert_headers_sets_all_headers ... ok
[INFO] [stdout] test mime::test::write_random_boundary_to::boundary_start_special ... ok
[INFO] [stdout] test mime::test::write_random_boundary_to::boundary_is_not_quoted ... ok
[INFO] [stdout] test mail::test::EncodableMail::does_not_override_date_if_set ... ok
[INFO] [stdout] test default_impl::fs::tests::sniff_media_type::works_reasonable_for_cargo_files ... ok
[INFO] [stdout] test default_impl::message_id_gen::test::HashedIdGen::get_message_id::should_always_return_a_new_id ... ok
[INFO] [stdout] test mail::test::Mail::visit_mail_bodies_does_not_skip ... ok
[INFO] [stdout] test mail::test::Mail::insert_header_set_a_header ... ok
[INFO] [stdout] test mail::test::EncodableMail::sets_generated_headers_for_outer_mail ... ok
[INFO] [stdout] test mail::test::EncodableMail::sets_generated_headers_for_sub_mails ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/mail-5a13ba9f081a3bba
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test resource::load_file::use_name_is_used ... ok
[INFO] [stdout] test resource::load_file::get_name_from_path ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mail-core
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/iri.rs - iri::IRI::tail (line 130) ... ok
[INFO] [stdout] test src/iri.rs - iri::IRI (line 29) ... ok
[INFO] [stdout] test src/iri.rs - iri::IRI::scheme (line 117) ... ok
[INFO] [stdout] test src/mail.rs - mail::Mail (line 117) ... ok
[INFO] [stdout] test src/default_impl/simple_context.rs - default_impl::simple_context (line 10) ... ok
[INFO] [stdout] test src/mail.rs - mail::Mail (line 144) ... ok
[INFO] [stdout] test src/mail.rs - mail::Mail (line 70) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0b0444b22017e364617d663adaff2ac9ecd32d63c0e5441b4359f59c95174fd3"`
[INFO] running `"docker" "rm" "-f" "0b0444b22017e364617d663adaff2ac9ecd32d63c0e5441b4359f59c95174fd3"`
[INFO] [stdout] 0b0444b22017e364617d663adaff2ac9ecd32d63c0e5441b4359f59c95174fd3