[INFO] cloning repository https://github.com/Dolondro/rust-testcase
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dolondro/rust-testcase" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolondro%2Frust-testcase", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolondro%2Frust-testcase'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 037cfa14cd899d0612f973957a4345252902ffed
[INFO] checking Dolondro/rust-testcase against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDolondro%2Frust-testcase" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dolondro/rust-testcase on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dolondro/rust-testcase
[INFO] finished tweaking git repo https://github.com/Dolondro/rust-testcase
[INFO] tweaked toml for git repo https://github.com/Dolondro/rust-testcase written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Dolondro/rust-testcase already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 790932a106cdae9f6d791cb25e82da79976c621059cfeb32df4bef04420c48df
[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" "790932a106cdae9f6d791cb25e82da79976c621059cfeb32df4bef04420c48df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "790932a106cdae9f6d791cb25e82da79976c621059cfeb32df4bef04420c48df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "790932a106cdae9f6d791cb25e82da79976c621059cfeb32df4bef04420c48df", kill_on_drop: false }`
[INFO] [stdout] 790932a106cdae9f6d791cb25e82da79976c621059cfeb32df4bef04420c48df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 008ef2ef9271956ecbd8c2cbca3b098c29b49a8f6f1fa036895b03e80ae58b7e
[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" "008ef2ef9271956ecbd8c2cbca3b098c29b49a8f6f1fa036895b03e80ae58b7e", kill_on_drop: false }`
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[INFO] [stderr]     Checking minimal-testcase v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Future`, `Stream`
[INFO] [stdout]   --> src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use futures::{Future, Stream};
[INFO] [stdout]    |               ^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Future`, `Stream`
[INFO] [stdout]   --> src/main.rs:10:15
[INFO] [stdout]    |
[INFO] [stdout] 10 | use futures::{Future, Stream};
[INFO] [stdout]    |               ^^^^^^  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `concat` found for struct `ByteStream` in the current scope
[INFO] [stdout]    --> src/main.rs:31:23
[INFO] [stdout]     |
[INFO] [stdout] 31  |     let body = stream.concat().wait().unwrap();
[INFO] [stdout]     |                       ^^^^^^ method not found in `ByteStream`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.29/src/stream/mod.rs:639:8
[INFO] [stdout]     |
[INFO] [stdout] 639 |     fn concat(self) -> Concat<Self>
[INFO] [stdout]     |        ------ the method is available for `Box<ByteStream>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use futures::stream::Stream;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `minimal-testcase`
[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[E0599]: no method named `concat` found for struct `ByteStream` in the current scope
[INFO] [stdout]    --> src/main.rs:31:23
[INFO] [stdout]     |
[INFO] [stdout] 31  |     let body = stream.concat().wait().unwrap();
[INFO] [stdout]     |                       ^^^^^^ method not found in `ByteStream`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/futures-0.1.29/src/stream/mod.rs:639:8
[INFO] [stdout]     |
[INFO] [stdout] 639 |     fn concat(self) -> Concat<Self>
[INFO] [stdout]     |        ------ the method is available for `Box<ByteStream>` here
[INFO] [stdout]     |
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]     |
[INFO] [stdout] 1   | use futures::stream::Stream;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "008ef2ef9271956ecbd8c2cbca3b098c29b49a8f6f1fa036895b03e80ae58b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "008ef2ef9271956ecbd8c2cbca3b098c29b49a8f6f1fa036895b03e80ae58b7e", kill_on_drop: false }`
[INFO] [stdout] 008ef2ef9271956ecbd8c2cbca3b098c29b49a8f6f1fa036895b03e80ae58b7e