[INFO] fetching crate futures_codec 0.4.1...
[INFO] checking futures_codec-0.4.1 against 1.55.0 for beta-1.56-3
[INFO] extracting crate futures_codec 0.4.1 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate futures_codec 0.4.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate futures_codec 0.4.1
[INFO] finished tweaking crates.io crate futures_codec 0.4.1
[INFO] tweaked toml for crates.io crate futures_codec 0.4.1 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c09ac206783bf8c0d2e86a69b56e3f6a1c31f8f9831f98820ae3c5d349c75c88
[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" "c09ac206783bf8c0d2e86a69b56e3f6a1c31f8f9831f98820ae3c5d349c75c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c09ac206783bf8c0d2e86a69b56e3f6a1c31f8f9831f98820ae3c5d349c75c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c09ac206783bf8c0d2e86a69b56e3f6a1c31f8f9831f98820ae3c5d349c75c88", kill_on_drop: false }`
[INFO] [stdout] c09ac206783bf8c0d2e86a69b56e3f6a1c31f8f9831f98820ae3c5d349c75c88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7914071bc63d254dbc28f154d4658fdd01a551fbfafa87f45910213948d8449f
[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" "7914071bc63d254dbc28f154d4658fdd01a551fbfafa87f45910213948d8449f", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-internal v0.4.28
[INFO] [stderr]     Checking pin-project v0.4.28
[INFO] [stderr]     Checking futures_codec v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/lines.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::io::Cursor<&String>: AsyncRead` is not satisfied
[INFO] [stdout]   --> benches/lines.rs:20:30
[INFO] [stdout]    |
[INFO] [stdout] 20 |             let mut framed = FramedRead::new(read, LinesCodec {});
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ the trait `AsyncRead` is not implemented for `std::io::Cursor<&String>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by `FramedRead::<T, D>::new`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/framed_read.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn new(inner: T, decoder: D) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |               framed.try_next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |               framed.try_next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:24:20
[INFO] [stdout]    |
[INFO] [stdout] 24 |               framed.try_next().await.is_ok()
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::io::Cursor<&String>: AsyncRead` is not satisfied
[INFO] [stdout]   --> benches/lines.rs:40:30
[INFO] [stdout]    |
[INFO] [stdout] 40 |             let mut framed = FramedRead::new(read, LinesCodec {});
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ the trait `AsyncRead` is not implemented for `std::io::Cursor<&String>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by `FramedRead::<T, D>::new`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/framed_read.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn new(inner: T, decoder: D) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:42:20
[INFO] [stdout]    |
[INFO] [stdout] 42 |               framed.try_next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:43:20
[INFO] [stdout]    |
[INFO] [stdout] 43 |               framed.try_next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:44:20
[INFO] [stdout]    |
[INFO] [stdout] 44 |               framed.try_next().await.is_ok()
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `std::io::Cursor<&String>: AsyncRead` is not satisfied
[INFO] [stdout]   --> benches/lines.rs:60:30
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut framed = FramedRead::new(read, LinesCodec {});
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^ the trait `AsyncRead` is not implemented for `std::io::Cursor<&String>`
[INFO] [stdout]    |
[INFO] [stdout] note: required by `FramedRead::<T, D>::new`
[INFO] [stdout]   --> /opt/rustwide/workdir/src/framed_read.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn new(inner: T, decoder: D) -> Self {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:62:20
[INFO] [stdout]    |
[INFO] [stdout] 62 |               framed.try_next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:63:20
[INFO] [stdout]    |
[INFO] [stdout] 63 |               framed.try_next().await.unwrap();
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: the method `try_next` exists for struct `FramedRead<std::io::Cursor<&String>, LinesCodec>`, but its trait bounds were not satisfied
[INFO] [stdout]   --> benches/lines.rs:64:20
[INFO] [stdout]    |
[INFO] [stdout] 64 |               framed.try_next().await.is_ok()
[INFO] [stdout]    |                      ^^^^^^^^ method cannot be called on `FramedRead<std::io::Cursor<&String>, LinesCodec>` due to unsatisfied trait bounds
[INFO] [stdout]    | 
[INFO] [stdout]   ::: /opt/rustwide/workdir/src/framed_read.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   pub struct FramedRead<T, D> {
[INFO] [stdout]    |   ---------------------------
[INFO] [stdout]    |   |
[INFO] [stdout]    |   doesn't satisfy `_: TryStreamExt`
[INFO] [stdout]    |   doesn't satisfy `_: TryStream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: the following trait bounds were not satisfied:
[INFO] [stdout]            `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStream`
[INFO] [stdout]            which is required by `FramedRead<std::io::Cursor<&String>, LinesCodec>: TryStreamExt`
[INFO] [stdout]            `std::io::Cursor<&String>: TryStream`
[INFO] [stdout]            which is required by `std::io::Cursor<&String>: TryStreamExt`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TryStreamExt`
[INFO] [stdout]  --> benches/lines.rs:5:25
[INFO] [stdout]   |
[INFO] [stdout] 5 | use futures::{executor, TryStreamExt};
[INFO] [stdout]   |                         ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 13 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0554, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures_codec` due to 14 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "7914071bc63d254dbc28f154d4658fdd01a551fbfafa87f45910213948d8449f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7914071bc63d254dbc28f154d4658fdd01a551fbfafa87f45910213948d8449f", kill_on_drop: false }`
[INFO] [stdout] 7914071bc63d254dbc28f154d4658fdd01a551fbfafa87f45910213948d8449f
