[INFO] cloning repository https://github.com/mehcode/transmit
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mehcode/transmit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Ftransmit", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Ftransmit'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbd3b79da1db675560b3249370f70a4dd5112e4f
[INFO] testing mehcode/transmit against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmehcode%2Ftransmit" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mehcode/transmit on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mehcode/transmit
[INFO] finished tweaking git repo https://github.com/mehcode/transmit
[INFO] tweaked toml for git repo https://github.com/mehcode/transmit written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/mehcode/transmit already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr] warning: the cargo feature `rename-dependency` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ef9d2643aef3819702478799a0e73ae25674f9e57569acbde164a031d63d8e0
[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" "8ef9d2643aef3819702478799a0e73ae25674f9e57569acbde164a031d63d8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ef9d2643aef3819702478799a0e73ae25674f9e57569acbde164a031d63d8e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ef9d2643aef3819702478799a0e73ae25674f9e57569acbde164a031d63d8e0", kill_on_drop: false }`
[INFO] [stdout] 8ef9d2643aef3819702478799a0e73ae25674f9e57569acbde164a031d63d8e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9b660b8884ab15954c28dcef20aa5379144c436b93ee13d23bd800034f06a4f9
[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" "9b660b8884ab15954c28dcef20aa5379144c436b93ee13d23bd800034f06a4f9", kill_on_drop: false }`
[INFO] [stderr] warning: the cargo feature `edition` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr] warning: the cargo feature `rename-dependency` is now stable and is no longer necessary to be listed in the manifest
[INFO] [stderr]    Compiling proc-macro2 v0.4.15
[INFO] [stderr]    Compiling cc v1.0.22
[INFO] [stderr]    Compiling pin-utils v0.1.0-alpha.1
[INFO] [stderr]    Compiling string v0.1.1
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling log v0.4.4
[INFO] [stderr]    Compiling futures-core-preview v0.3.0-alpha.3
[INFO] [stderr]    Compiling tokio-channel v0.1.0
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/pin-utils-0.1.0-alpha.1/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pin)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pin-utils`
[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] [stdout] error[E0432]: unresolved import `core::mem::PinMut`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/future.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use core::mem::PinMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::future::FutureObj`, `core::future::LocalFutureObj`, `core::future::UnsafeFutureObj`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/future.rs:6:32
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub use core::future::{Future, FutureObj, LocalFutureObj, UnsafeFutureObj};
[INFO] [stdout]   |                                ^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^ no `UnsafeFutureObj` in `future`
[INFO] [stdout]   |                                |          |
[INFO] [stdout]   |                                |          no `LocalFutureObj` in `future`
[INFO] [stdout]   |                                no `FutureObj` in `future`
[INFO] [stdout]   |                                help: a similar name exists in the module: `Future`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `core::mem::PinMut`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use core::mem::PinMut;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `PinMut` in `mem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `std`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:128:9
[INFO] [stdout]     |
[INFO] [stdout] 128 |     use std::boxed::{Box, PinBox};
[INFO] [stdout]     |         ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `std`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/task.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub use std::task::{Wake, local_waker, local_waker_from_nonlocal};
[INFO] [stdout]    |             ^^^ use of undeclared crate or module `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `core::task::Spawn`, `core::task::LocalWaker`, `core::task::UnsafeWake`, `core::task::SpawnErrorKind`, `core::task::SpawnObjError`, `core::task::SpawnLocalObjError`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/task.rs:4:20
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Context, Poll, Spawn,
[INFO] [stdout]   |                    ^^^^^ no `Spawn` in `task`
[INFO] [stdout] 5 |     Waker, LocalWaker, UnsafeWake,
[INFO] [stdout]   |            ^^^^^^^^^^  ^^^^^^^^^^ no `UnsafeWake` in `task`
[INFO] [stdout]   |            |
[INFO] [stdout]   |            no `LocalWaker` in `task`
[INFO] [stdout] 6 |     SpawnErrorKind, SpawnObjError, SpawnLocalObjError,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^ no `SpawnLocalObjError` in `task`
[INFO] [stdout]   |     |               |
[INFO] [stdout]   |     |               no `SpawnObjError` in `task`
[INFO] [stdout]   |     no `SpawnErrorKind` in `task`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `std` in `{{root}}`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:152:34
[INFO] [stdout]     |
[INFO] [stdout] 152 |     impl<S: Stream> Stream for ::std::panic::AssertUnwindSafe<S> {
[INFO] [stdout]     |                                  ^^^ could not find `std` in `{{root}}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `std` in `{{root}}`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:163:33
[INFO] [stdout]     |
[INFO] [stdout] 163 |     impl<T: Unpin> Stream for ::std::collections::VecDeque<T> {
[INFO] [stdout]     |                                 ^^^ could not find `std` in `{{root}}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Box` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:130:49
[INFO] [stdout]     |
[INFO] [stdout] 130 |     impl<S: ?Sized + Stream + Unpin> Stream for Box<S> {
[INFO] [stdout]     |                                                 ^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `PinBox` in this scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/stream.rs:141:41
[INFO] [stdout]     |
[INFO] [stdout] 141 |     impl<S: ?Sized + Stream> Stream for PinBox<S> {
[INFO] [stdout]     |                                         ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-core-preview-0.3.0-alpha.3/src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(pin, arbitrary_self_types, futures_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 11 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tokio-channel-0.1.0/src/lib.rs:3:46
[INFO] [stdout]   |
[INFO] [stdout] 3 |   #![cfg_attr(feature = "async-await-preview", feature(
[INFO] [stdout]   |  ______________________________________________^
[INFO] [stdout] 4 | |         pin,
[INFO] [stdout] 5 | |         ))]
[INFO] [stdout]   | |_________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9b660b8884ab15954c28dcef20aa5379144c436b93ee13d23bd800034f06a4f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b660b8884ab15954c28dcef20aa5379144c436b93ee13d23bd800034f06a4f9", kill_on_drop: false }`
[INFO] [stdout] 9b660b8884ab15954c28dcef20aa5379144c436b93ee13d23bd800034f06a4f9