[INFO] fetching crate nxos 0.0.1...
[INFO] checking nxos-0.0.1 against try#1463461488056994d1b84e8b752e7c11c7fae7aa for pr-154205
[INFO] extracting crate nxos 0.0.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate nxos 0.0.1
[INFO] finished tweaking crates.io crate nxos 0.0.1
[INFO] tweaked toml for crates.io crate nxos 0.0.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nxos 0.0.1 on toolchain 1463461488056994d1b84e8b752e7c11c7fae7aa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "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" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "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 12 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 250c0c90547471a8bd24eb6b426b142aba20fba0c1ae55171d2ea04a6ca5f5bc
[INFO] running `Command { std: "docker" "start" "-a" "250c0c90547471a8bd24eb6b426b142aba20fba0c1ae55171d2ea04a6ca5f5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "250c0c90547471a8bd24eb6b426b142aba20fba0c1ae55171d2ea04a6ca5f5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "250c0c90547471a8bd24eb6b426b142aba20fba0c1ae55171d2ea04a6ca5f5bc", kill_on_drop: false }`
[INFO] [stdout] 250c0c90547471a8bd24eb6b426b142aba20fba0c1ae55171d2ea04a6ca5f5bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1463461488056994d1b84e8b752e7c11c7fae7aa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d490824dee4f907d1044fed74e474e6728c6556ed0ec826e6ded4436816792f
[INFO] running `Command { std: "docker" "start" "-a" "1d490824dee4f907d1044fed74e474e6728c6556ed0ec826e6ded4436816792f", kill_on_drop: false }`
[INFO] [stderr]     Checking nxos v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `stderr` and `status` are never read
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct CommandResult {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 10 |     stdout: String,
[INFO] [stdout] 11 |     stderr: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     status: ExitStatus,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `stderr` and `status` are never read
[INFO] [stdout]   --> src/lib.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct CommandResult {
[INFO] [stdout]    |            ------------- fields in this struct
[INFO] [stdout] 10 |     stdout: String,
[INFO] [stdout] 11 |     stderr: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 12 |     status: ExitStatus,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "1d490824dee4f907d1044fed74e474e6728c6556ed0ec826e6ded4436816792f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d490824dee4f907d1044fed74e474e6728c6556ed0ec826e6ded4436816792f", kill_on_drop: false }`
[INFO] [stdout] 1d490824dee4f907d1044fed74e474e6728c6556ed0ec826e6ded4436816792f