[INFO] fetching crate channel_pipes 0.2.0...
[INFO] checking channel_pipes-0.2.0 against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] extracting crate channel_pipes 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate channel_pipes 0.2.0
[INFO] finished tweaking crates.io crate channel_pipes 0.2.0
[INFO] tweaked toml for crates.io crate channel_pipes 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate channel_pipes 0.2.0 on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking channel_pipes-0.2.0 against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] extracting crate channel_pipes 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate channel_pipes 0.2.0
[INFO] finished tweaking crates.io crate channel_pipes 0.2.0
[INFO] tweaked toml for crates.io crate channel_pipes 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate channel_pipes 0.2.0 on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking channel_pipes-0.2.0 against try#afeffcd090fe6cee35c99f8b5539d74aa443fe34 for pr-140956
[INFO] extracting crate channel_pipes 0.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate channel_pipes 0.2.0
[INFO] finished tweaking crates.io crate channel_pipes 0.2.0
[INFO] tweaked toml for crates.io crate channel_pipes 0.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate channel_pipes 0.2.0 on toolchain afeffcd090fe6cee35c99f8b5539d74aa443fe34
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "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" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 28 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c1054ebd9798238796c54eb71f84258eaf93cf890143fe380e663a10e38671f
[INFO] running `Command { std: "docker" "start" "-a" "2c1054ebd9798238796c54eb71f84258eaf93cf890143fe380e663a10e38671f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c1054ebd9798238796c54eb71f84258eaf93cf890143fe380e663a10e38671f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c1054ebd9798238796c54eb71f84258eaf93cf890143fe380e663a10e38671f", kill_on_drop: false }`
[INFO] [stdout] 2c1054ebd9798238796c54eb71f84258eaf93cf890143fe380e663a10e38671f
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+afeffcd090fe6cee35c99f8b5539d74aa443fe34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 307b1a5813421cda06f6b5b329643cc2ec0bba275d80998e7590857ad95fda32
[INFO] running `Command { std: "docker" "start" "-a" "307b1a5813421cda06f6b5b329643cc2ec0bba275d80998e7590857ad95fda32", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]     Checking crossbeam-channel v0.5.15
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling dyn-clonable-impl v0.9.2
[INFO] [stderr]     Checking dyn-clonable v0.9.2
[INFO] [stderr]     Checking channel_pipes v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `IntoPiped` is never used
[INFO] [stdout]   --> src/lib.rs:56:7
[INFO] [stdout]    |
[INFO] [stdout] 56 | trait IntoPiped<T, S, V>
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/pipeline.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | impl<T> IdentityPipelineStage<T> {
[INFO] [stdout]    | -------------------------------- associated function in this implementation
[INFO] [stdout] 47 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.02s
[INFO] running `Command { std: "docker" "inspect" "307b1a5813421cda06f6b5b329643cc2ec0bba275d80998e7590857ad95fda32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "307b1a5813421cda06f6b5b329643cc2ec0bba275d80998e7590857ad95fda32", kill_on_drop: false }`
[INFO] [stdout] 307b1a5813421cda06f6b5b329643cc2ec0bba275d80998e7590857ad95fda32