[INFO] fetching crate si-loggy 0.1.0...
[INFO] checking si-loggy-0.1.0 against master#5ad98b4026d5172f27615b105658bc8bfd677be8 for pr-129422
[INFO] extracting crate si-loggy 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate si-loggy 0.1.0 on toolchain 5ad98b4026d5172f27615b105658bc8bfd677be8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking crates.io crate si-loggy 0.1.0
[INFO] finished tweaking crates.io crate si-loggy 0.1.0
[INFO] tweaked toml for crates.io crate si-loggy 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate si-loggy 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 862a198c32ba6e93bc7fe4755d2b0a2dc67431605c61f0a6fb2ebc2b97923d55
[INFO] running `Command { std: "docker" "start" "-a" "862a198c32ba6e93bc7fe4755d2b0a2dc67431605c61f0a6fb2ebc2b97923d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "862a198c32ba6e93bc7fe4755d2b0a2dc67431605c61f0a6fb2ebc2b97923d55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "862a198c32ba6e93bc7fe4755d2b0a2dc67431605c61f0a6fb2ebc2b97923d55", kill_on_drop: false }`
[INFO] [stdout] 862a198c32ba6e93bc7fe4755d2b0a2dc67431605c61f0a6fb2ebc2b97923d55
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+5ad98b4026d5172f27615b105658bc8bfd677be8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7203bd9cfed64a98d2ac4b8ff181ef7ff3b7466d403698fd01fffab201a40a3c
[INFO] running `Command { std: "docker" "start" "-a" "7203bd9cfed64a98d2ac4b8ff181ef7ff3b7466d403698fd01fffab201a40a3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustix v0.38.34
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking polling v3.7.2
[INFO] [stderr]     Checking si-loggy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `into_raw_fd` that must be used
[INFO] [stdout]    --> src/tee.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             writer.into_raw_fd(); // avoid closing the fd
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the raw file descriptor may leak resources
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let _ = writer.into_raw_fd(); // avoid closing the fd
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `into_raw_fd` that must be used
[INFO] [stdout]    --> src/tee.rs:113:13
[INFO] [stdout]     |
[INFO] [stdout] 113 |             writer.into_raw_fd(); // avoid closing the fd
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: losing the raw file descriptor may leak resources
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 113 |             let _ = writer.into_raw_fd(); // avoid closing the fd
[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 5.72s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7203bd9cfed64a98d2ac4b8ff181ef7ff3b7466d403698fd01fffab201a40a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7203bd9cfed64a98d2ac4b8ff181ef7ff3b7466d403698fd01fffab201a40a3c", kill_on_drop: false }`
[INFO] [stdout] 7203bd9cfed64a98d2ac4b8ff181ef7ff3b7466d403698fd01fffab201a40a3c