[INFO] fetching crate local-channel 0.1.5...
[INFO] checking local-channel-0.1.5 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate local-channel 0.1.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate local-channel 0.1.5 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate local-channel 0.1.5
[INFO] finished tweaking crates.io crate local-channel 0.1.5
[INFO] tweaked toml for crates.io crate local-channel 0.1.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d29dffe9f5dd53ffd19b46d9fb2418133bb68da04717075ab3be83ff4d4b257f
[INFO] running `Command { std: "docker" "start" "-a" "d29dffe9f5dd53ffd19b46d9fb2418133bb68da04717075ab3be83ff4d4b257f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d29dffe9f5dd53ffd19b46d9fb2418133bb68da04717075ab3be83ff4d4b257f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29dffe9f5dd53ffd19b46d9fb2418133bb68da04717075ab3be83ff4d4b257f", kill_on_drop: false }`
[INFO] [stdout] d29dffe9f5dd53ffd19b46d9fb2418133bb68da04717075ab3be83ff4d4b257f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19df9bc673599c6e943f6ee7b12c489f21dc05906febce6c7b00df5f0017a816
[INFO] running `Command { std: "docker" "start" "-a" "19df9bc673599c6e943f6ee7b12c489f21dc05906febce6c7b00df5f0017a816", kill_on_drop: false }`
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]     Checking local-channel v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_util::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_core::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_util::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_core::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/mpsc.rs:208:7
[INFO] [stdout]     |
[INFO] [stdout] 208 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/mpsc.rs:242:7
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:212:23
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 212 |         assert_eq!(rx.next().await.unwrap(), "test");
[INFO] [stdout]     |                       ^^^^ method not found in `Receiver<&str>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `next`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:216:23
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 216 |         assert_eq!(rx.next().await.unwrap(), "test2");
[INFO] [stdout]     |                       ^^^^ method not found in `Receiver<&str>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `next`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:228:23
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 228 |         assert_eq!(rx.next().await, None);
[INFO] [stdout]     |                       ^^^^ method not found in `Receiver<&str>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `next`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `local-channel` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "19df9bc673599c6e943f6ee7b12c489f21dc05906febce6c7b00df5f0017a816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19df9bc673599c6e943f6ee7b12c489f21dc05906febce6c7b00df5f0017a816", kill_on_drop: false }`
[INFO] [stdout] 19df9bc673599c6e943f6ee7b12c489f21dc05906febce6c7b00df5f0017a816
[INFO] checking local-channel-0.1.5 against try#b4fc5dbf0bc33be331f9d893db5b3a794f29724a+rustflags=-Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds for pr-121251
[INFO] extracting crate local-channel 0.1.5 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate local-channel 0.1.5 on toolchain b4fc5dbf0bc33be331f9d893db5b3a794f29724a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate local-channel 0.1.5
[INFO] finished tweaking crates.io crate local-channel 0.1.5
[INFO] tweaked toml for crates.io crate local-channel 0.1.5 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 088990a3b4fa357c8d810a89cd0f9fd3d8814f942eb647f66da82814967a03d1
[INFO] running `Command { std: "docker" "start" "-a" "088990a3b4fa357c8d810a89cd0f9fd3d8814f942eb647f66da82814967a03d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "088990a3b4fa357c8d810a89cd0f9fd3d8814f942eb647f66da82814967a03d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088990a3b4fa357c8d810a89cd0f9fd3d8814f942eb647f66da82814967a03d1", kill_on_drop: false }`
[INFO] [stdout] 088990a3b4fa357c8d810a89cd0f9fd3d8814f942eb647f66da82814967a03d1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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 -Dexplicit_range -Dtrait_impl_range -Wrange_syntax -Wrange_bounds" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b4fc5dbf0bc33be331f9d893db5b3a794f29724a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4260f0732038a39ef56591ca09575f924175218f0b8e01be6c32a111ba489868
[INFO] running `Command { std: "docker" "start" "-a" "4260f0732038a39ef56591ca09575f924175218f0b8e01be6c32a111ba489868", kill_on_drop: false }`
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]     Checking local-channel v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_util::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_core::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `futures_util`
[INFO] [stdout]    --> src/mpsc.rs:204:9
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_util::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ^^^^^^^^^^^^ use of undeclared crate or module `futures_util`
[INFO] [stdout]     |
[INFO] [stdout] help: there is a crate or module with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 204 |     use futures_core::{future::lazy, StreamExt as _};
[INFO] [stdout]     |         ~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/mpsc.rs:208:7
[INFO] [stdout]     |
[INFO] [stdout] 208 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `tokio`
[INFO] [stdout]    --> src/mpsc.rs:242:7
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #[tokio::test]
[INFO] [stdout]     |       ^^^^^ use of undeclared crate or module `tokio`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:212:23
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 212 |         assert_eq!(rx.next().await.unwrap(), "test");
[INFO] [stdout]     |                       ^^^^ method not found in `Receiver<&str>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `next`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:216:23
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 216 |         assert_eq!(rx.next().await.unwrap(), "test2");
[INFO] [stdout]     |                       ^^^^ method not found in `Receiver<&str>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `next`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `next` found for struct `mpsc::Receiver` in the current scope
[INFO] [stdout]    --> src/mpsc.rs:228:23
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub struct Receiver<T> {
[INFO] [stdout]     | ---------------------- method `next` not found for this struct
[INFO] [stdout] ...
[INFO] [stdout] 228 |         assert_eq!(rx.next().await, None);
[INFO] [stdout]     |                       ^^^^ method not found in `Receiver<&str>`
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is implemented and in scope
[INFO] [stdout]     = note: the following trait defines an item `next`, perhaps you need to implement it:
[INFO] [stdout]             candidate #1: `Iterator`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 7 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `local-channel` (lib test) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "4260f0732038a39ef56591ca09575f924175218f0b8e01be6c32a111ba489868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4260f0732038a39ef56591ca09575f924175218f0b8e01be6c32a111ba489868", kill_on_drop: false }`
[INFO] [stdout] 4260f0732038a39ef56591ca09575f924175218f0b8e01be6c32a111ba489868
