[INFO] fetching crate cairn-cli 0.1.6...
[INFO] checking cairn-cli-0.1.6 against try#50f413885985a8b0a0b6ca0766a0aedd45304953 for pr-155657
[INFO] extracting crate cairn-cli 0.1.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate cairn-cli 0.1.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate cairn-cli 0.1.6
[INFO] tweaked toml for crates.io crate cairn-cli 0.1.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate cairn-cli 0.1.6 on toolchain 50f413885985a8b0a0b6ca0766a0aedd45304953
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate cairn-cli 0.1.6 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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d99af2765465e311b3b61fa0e7b65a6dc70fc480f4f5b1dbc68a0c98833f317
[INFO] running `Command { std: "docker" "start" "-a" "5d99af2765465e311b3b61fa0e7b65a6dc70fc480f4f5b1dbc68a0c98833f317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d99af2765465e311b3b61fa0e7b65a6dc70fc480f4f5b1dbc68a0c98833f317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d99af2765465e311b3b61fa0e7b65a6dc70fc480f4f5b1dbc68a0c98833f317", kill_on_drop: false }`
[INFO] [stdout] 5d99af2765465e311b3b61fa0e7b65a6dc70fc480f4f5b1dbc68a0c98833f317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+50f413885985a8b0a0b6ca0766a0aedd45304953" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f5120e469bd583caad81985b3bd9227e8b750ec664e37155ae628e13136e37b
[INFO] running `Command { std: "docker" "start" "-a" "0f5120e469bd583caad81985b3bd9227e8b750ec664e37155ae628e13136e37b", kill_on_drop: false }`
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[INFO] [stdout] warning: variant `PotNotReady` is never constructed
[INFO] [stdout]   --> src/errors.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum CairnError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 69 |     PotNotReady,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CairnError` 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: variant `PotNotReady` is never constructed
[INFO] [stdout]   --> src/errors.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum CairnError {
[INFO] [stdout]    |          ---------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 69 |     PotNotReady,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CairnError` 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 1m 48s
[INFO] running `Command { std: "docker" "inspect" "0f5120e469bd583caad81985b3bd9227e8b750ec664e37155ae628e13136e37b", kill_on_drop: false }`
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[INFO] [stdout] 0f5120e469bd583caad81985b3bd9227e8b750ec664e37155ae628e13136e37b
