[INFO] fetching crate discotech 0.0.3...
[INFO] checking discotech-0.0.3 against master#cfbc6d4cf1acbac5c025acf8ed68929caa551df3 for pr-75494-beta
[INFO] extracting crate discotech 0.0.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate discotech 0.0.3 on toolchain cfbc6d4cf1acbac5c025acf8ed68929caa551df3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate discotech 0.0.3
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate discotech 0.0.3
[INFO] tweaked toml for crates.io crate discotech 0.0.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "fetch" "--locked" "--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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac0a6a6046987169d5d239ffc8b4f37a8a29051cedb1e14d848f4ee9cea53c41
[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" "ac0a6a6046987169d5d239ffc8b4f37a8a29051cedb1e14d848f4ee9cea53c41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac0a6a6046987169d5d239ffc8b4f37a8a29051cedb1e14d848f4ee9cea53c41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac0a6a6046987169d5d239ffc8b4f37a8a29051cedb1e14d848f4ee9cea53c41", kill_on_drop: false }`
[INFO] [stdout] ac0a6a6046987169d5d239ffc8b4f37a8a29051cedb1e14d848f4ee9cea53c41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+cfbc6d4cf1acbac5c025acf8ed68929caa551df3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 008a6468b82064c2a7a42cb0dd8544e10ba4bf8a6dca9f8536ee88077524a9f6
[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" "008a6468b82064c2a7a42cb0dd8544e10ba4bf8a6dca9f8536ee88077524a9f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking bitflags v0.1.1
[INFO] [stderr]     Checking bytes v0.2.11
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking nix v0.3.10
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling standback v0.2.9
[INFO] [stderr]    Compiling time v0.2.16
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking mio v0.3.7
[INFO] [stdout] error[E0277]: `M` cannot be sent between threads safely
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/notify.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Notify<M: Send> {
[INFO] [stdout]    |                      ---- required by this bound in `notify::Notify`
[INFO] [stdout] ...
[INFO] [stdout] 57 | impl<M> fmt::Debug for Notify<M> {
[INFO] [stdout]    |         ^^^^^^^^^^ `M` cannot be sent between threads safely
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Send` is not implemented for `M`
[INFO] [stdout] help: consider restricting type parameter `M`
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl<M: std::marker::Send> fmt::Debug for Notify<M> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/handler.rs:8:40
[INFO] [stdout]    |
[INFO] [stdout] 8  |     fn readable(&mut self, event_loop: &mut EventLoop<Self>, token: Token, hint: ReadHint) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/event_loop.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler> {
[INFO] [stdout]    |                      - required by this bound in `event_loop::EventLoop`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stdout]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 8  |     fn readable(&mut self, event_loop: &mut EventLoop<Self>, token: Token, hint: ReadHint) where Self: std::marker::Sized {
[INFO] [stdout]    |                                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider relaxing the implicit `Sized` restriction
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler + ?Sized> {
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/handler.rs:11:40
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn writable(&mut self, event_loop: &mut EventLoop<Self>, token: Token) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/event_loop.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler> {
[INFO] [stdout]    |                      - required by this bound in `event_loop::EventLoop`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stdout]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn writable(&mut self, event_loop: &mut EventLoop<Self>, token: Token) where Self: std::marker::Sized {
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider relaxing the implicit `Sized` restriction
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler + ?Sized> {
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/handler.rs:14:38
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn notify(&mut self, event_loop: &mut EventLoop<Self>, msg: Self::Message) {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/event_loop.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler> {
[INFO] [stdout]    |                      - required by this bound in `event_loop::EventLoop`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stdout]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 14 |     fn notify(&mut self, event_loop: &mut EventLoop<Self>, msg: Self::Message) where Self: std::marker::Sized {
[INFO] [stdout]    |                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider relaxing the implicit `Sized` restriction
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler + ?Sized> {
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/handler.rs:17:39
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn timeout(&mut self, event_loop: &mut EventLoop<Self>, timeout: Self::Timeout) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/event_loop.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler> {
[INFO] [stdout]    |                      - required by this bound in `event_loop::EventLoop`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stdout]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn timeout(&mut self, event_loop: &mut EventLoop<Self>, timeout: Self::Timeout) where Self: std::marker::Sized {
[INFO] [stdout]    |                                                                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider relaxing the implicit `Sized` restriction
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler + ?Sized> {
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/handler.rs:20:43
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn interrupted(&mut self, event_loop: &mut EventLoop<Self>) {
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/event_loop.rs:37:22
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler> {
[INFO] [stdout]    |                      - required by this bound in `event_loop::EventLoop`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stdout]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn interrupted(&mut self, event_loop: &mut EventLoop<Self>) where Self: std::marker::Sized {
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider relaxing the implicit `Sized` restriction
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub struct EventLoop<H: Handler + ?Sized> {
[INFO] [stdout]    |                                 ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/nonblock.rs:67:32
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct NonBlock<T> {
[INFO] [stdout]    |                     - required by this bound in `nonblock::NonBlock`
[INFO] [stdout] ...
[INFO] [stdout] 67 |     fn into_non_block(self) -> Result<NonBlock<Self>>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stdout]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stdout] help: you could relax the implicit `Sized` bound on `T` if it were used through indirection like `&T` or `Box<T>`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/nonblock.rs:7:21
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub struct NonBlock<T> {
[INFO] [stdout]    |                     ^ this could be changed to `T: ?Sized`...
[INFO] [stdout] 8  |     inner: T,
[INFO] [stdout]    |            - ...if indirection was used here: `Box<T>`
[INFO] [stdout] help: consider further restricting `Self`
[INFO] [stdout]    |
[INFO] [stdout] 67 |     fn into_non_block(self) -> Result<NonBlock<Self>> where Self: std::marker::Sized;
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: `M` cannot be sent between threads safely
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mio-0.3.7/src/notify.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Notify<M: Send> {
[INFO] [stdout]    |                      ---- required by this bound in `notify::Notify`
[INFO] [stdout] ...
[INFO] [stdout] 58 |     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
[INFO] [stdout]    |            ^^^^^ `M` cannot be sent between threads safely
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `std::marker::Send` is not implemented for `M`
[INFO] [stdout] help: consider restricting type parameter `M`
[INFO] [stdout]    |
[INFO] [stdout] 57 | impl<M: std::marker::Send> fmt::Debug for Notify<M> {
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mio`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "008a6468b82064c2a7a42cb0dd8544e10ba4bf8a6dca9f8536ee88077524a9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008a6468b82064c2a7a42cb0dd8544e10ba4bf8a6dca9f8536ee88077524a9f6", kill_on_drop: false }`
[INFO] [stdout] 008a6468b82064c2a7a42cb0dd8544e10ba4bf8a6dca9f8536ee88077524a9f6
