[INFO] fetching crate http_tiny 2.0.0-pre.6...
[INFO] checking http_tiny-2.0.0-pre.6 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate http_tiny 2.0.0-pre.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate http_tiny 2.0.0-pre.6
[INFO] finished tweaking crates.io crate http_tiny 2.0.0-pre.6
[INFO] tweaked toml for crates.io crate http_tiny 2.0.0-pre.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate http_tiny 2.0.0-pre.6 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38942023ebacd16bf2ae82ad18bc29f40b21b49562a32c4d96f8a22b91f574fb
[INFO] running `Command { std: "docker" "start" "-a" "38942023ebacd16bf2ae82ad18bc29f40b21b49562a32c4d96f8a22b91f574fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38942023ebacd16bf2ae82ad18bc29f40b21b49562a32c4d96f8a22b91f574fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38942023ebacd16bf2ae82ad18bc29f40b21b49562a32c4d96f8a22b91f574fb", kill_on_drop: false }`
[INFO] [stdout] 38942023ebacd16bf2ae82ad18bc29f40b21b49562a32c4d96f8a22b91f574fb
[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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2832120decfc28ab1fa284de9a4a39ec728ec6a8ce3820495b65aa54e52a4ab7
[INFO] running `Command { std: "docker" "start" "-a" "2832120decfc28ab1fa284de9a4a39ec728ec6a8ce3820495b65aa54e52a4ab7", kill_on_drop: false }`
[INFO] [stderr]     Checking http_tiny v2.0.0-pre.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `peek_one` is never used
[INFO] [stdout]   --> src/iotraits.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait BufReadExt
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn peek_one(&mut self) -> Result<Option<u8>, Error>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peek_one` is never used
[INFO] [stdout]   --> src/iotraits.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub trait BufReadExt
[INFO] [stdout]    |           ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 23 |     fn peek_one(&mut self) -> Result<Option<u8>, Error>;
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "2832120decfc28ab1fa284de9a4a39ec728ec6a8ce3820495b65aa54e52a4ab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2832120decfc28ab1fa284de9a4a39ec728ec6a8ce3820495b65aa54e52a4ab7", kill_on_drop: false }`
[INFO] [stdout] 2832120decfc28ab1fa284de9a4a39ec728ec6a8ce3820495b65aa54e52a4ab7