[INFO] fetching crate nxos 0.0.1...
[INFO] checking nxos-0.0.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate nxos 0.0.1 into /workspace/builds/worker-0-tc1/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-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nxos 0.0.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f59e3ddb1b6ca62110ad832105fe57aaf5ddf129cebb7cfcc5e825d72f9160d
[INFO] running `Command { std: "docker" "start" "-a" "6f59e3ddb1b6ca62110ad832105fe57aaf5ddf129cebb7cfcc5e825d72f9160d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f59e3ddb1b6ca62110ad832105fe57aaf5ddf129cebb7cfcc5e825d72f9160d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f59e3ddb1b6ca62110ad832105fe57aaf5ddf129cebb7cfcc5e825d72f9160d", kill_on_drop: false }`
[INFO] [stdout] 6f59e3ddb1b6ca62110ad832105fe57aaf5ddf129cebb7cfcc5e825d72f9160d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d8b2bdf9d79d18a3e079d0f23d2fc9fd048c4b6d1836f88872aff79c8dd29c8
[INFO] running `Command { std: "docker" "start" "-a" "2d8b2bdf9d79d18a3e079d0f23d2fc9fd048c4b6d1836f88872aff79c8dd29c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.143
[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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.00s
[INFO] running `Command { std: "docker" "inspect" "2d8b2bdf9d79d18a3e079d0f23d2fc9fd048c4b6d1836f88872aff79c8dd29c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d8b2bdf9d79d18a3e079d0f23d2fc9fd048c4b6d1836f88872aff79c8dd29c8", kill_on_drop: false }`
[INFO] [stdout] 2d8b2bdf9d79d18a3e079d0f23d2fc9fd048c4b6d1836f88872aff79c8dd29c8