[INFO] fetching crate byte_channel 0.0.1...
[INFO] checking byte_channel-0.0.1 against try#0edd13c68435d50367c79cef43ac2768d2ec4f3d for pr-129422
[INFO] extracting crate byte_channel 0.0.1 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate byte_channel 0.0.1 on toolchain 0edd13c68435d50367c79cef43ac2768d2ec4f3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate byte_channel 0.0.1
[INFO] finished tweaking crates.io crate byte_channel 0.0.1
[INFO] tweaked toml for crates.io crate byte_channel 0.0.1 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.4.12 (latest: v1.7.1)
[INFO] [stderr]       Adding futures v0.1.31 (latest: v0.3.30)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e7273f1e39b9df9ac6c2ca53b269c13bf17f88b1efbf793cec73dec588d22d7d
[INFO] running `Command { std: "docker" "start" "-a" "e7273f1e39b9df9ac6c2ca53b269c13bf17f88b1efbf793cec73dec588d22d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7273f1e39b9df9ac6c2ca53b269c13bf17f88b1efbf793cec73dec588d22d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7273f1e39b9df9ac6c2ca53b269c13bf17f88b1efbf793cec73dec588d22d7d", kill_on_drop: false }`
[INFO] [stdout] e7273f1e39b9df9ac6c2ca53b269c13bf17f88b1efbf793cec73dec588d22d7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+0edd13c68435d50367c79cef43ac2768d2ec4f3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd3d2486c4683ed79b0967b6ab8deffca7b912dba1b39b2437b40095983d7856
[INFO] running `Command { std: "docker" "start" "-a" "bd3d2486c4683ed79b0967b6ab8deffca7b912dba1b39b2437b40095983d7856", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking test_futures v0.0.1
[INFO] [stderr]     Checking byte_channel v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/lib.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | #[cfg_attr(test, macro_use)]
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/sync/chunk.rs:129:21
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     drop(bytes);
[INFO] [stdout]     |                     ^^^^^-----^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut bytes::Bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 129 -                     drop(bytes);
[INFO] [stdout] 129 +                     let _ = bytes;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: calls to `std::mem::drop` with a reference instead of an owned value does nothing
[INFO] [stdout]    --> src/sync/chunk.rs:129:21
[INFO] [stdout]     |
[INFO] [stdout] 129 |                     drop(bytes);
[INFO] [stdout]     |                     ^^^^^-----^
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          argument has type `&mut bytes::Bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dropping_references)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the expression or result
[INFO] [stdout]     |
[INFO] [stdout] 129 -                     drop(bytes);
[INFO] [stdout] 129 +                     let _ = bytes;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "bd3d2486c4683ed79b0967b6ab8deffca7b912dba1b39b2437b40095983d7856", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3d2486c4683ed79b0967b6ab8deffca7b912dba1b39b2437b40095983d7856", kill_on_drop: false }`
[INFO] [stdout] bd3d2486c4683ed79b0967b6ab8deffca7b912dba1b39b2437b40095983d7856