[INFO] cloning repository https://github.com/AOSC-Dev/ciel-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AOSC-Dev/ciel-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAOSC-Dev%2Fciel-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAOSC-Dev%2Fciel-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0867ba01c626cca93ea3016882ec31ac6ce293af
[INFO] checking AOSC-Dev/ciel-rs against master#4cf5f9580233c36f6bc8db76e282ba8a1c1ea491 for pr-154585
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAOSC-Dev%2Fciel-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AOSC-Dev/ciel-rs
[INFO] finished tweaking git repo https://github.com/AOSC-Dev/ciel-rs
[INFO] tweaked toml for git repo https://github.com/AOSC-Dev/ciel-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AOSC-Dev/ciel-rs on toolchain 4cf5f9580233c36f6bc8db76e282ba8a1c1ea491
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AOSC-Dev/ciel-rs 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" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Updating git repository `https://github.com/liushuyu/libmount`
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5336a943e7d6e4563aabf6d2e235ee84331e14ef3f1343d33b8be4f71b5ce687
[INFO] running `Command { std: "docker" "start" "-a" "5336a943e7d6e4563aabf6d2e235ee84331e14ef3f1343d33b8be4f71b5ce687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5336a943e7d6e4563aabf6d2e235ee84331e14ef3f1343d33b8be4f71b5ce687", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5336a943e7d6e4563aabf6d2e235ee84331e14ef3f1343d33b8be4f71b5ce687", kill_on_drop: false }`
[INFO] [stdout] 5336a943e7d6e4563aabf6d2e235ee84331e14ef3f1343d33b8be4f71b5ce687
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+4cf5f9580233c36f6bc8db76e282ba8a1c1ea491" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "85e6ce0081da6e6d1836d5bc40a73b4ee2a895f695890378b96d3c9211fce701", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
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[INFO] [stdout] warning: field `ns_name` is never read
[INFO] [stdout]   --> src/machine.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct CielInstance {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub ns_name: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CielInstance` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `ns_name` is never read
[INFO] [stdout]   --> src/machine.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub struct CielInstance {
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub ns_name: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CielInstance` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 34.74s
[INFO] running `Command { std: "docker" "inspect" "85e6ce0081da6e6d1836d5bc40a73b4ee2a895f695890378b96d3c9211fce701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e6ce0081da6e6d1836d5bc40a73b4ee2a895f695890378b96d3c9211fce701", kill_on_drop: false }`
[INFO] [stdout] 85e6ce0081da6e6d1836d5bc40a73b4ee2a895f695890378b96d3c9211fce701