[INFO] fetching crate palindromeda 2.1.0...
[INFO] building palindromeda-2.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate palindromeda 2.1.0 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate palindromeda 2.1.0
[INFO] finished tweaking crates.io crate palindromeda 2.1.0
[INFO] tweaked toml for crates.io crate palindromeda 2.1.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate palindromeda 2.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate palindromeda 2.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7054fd07b44207f28273ce8b7eb662bd47f8b867906e53d79feaea213224158d
[INFO] running `Command { std: "docker" "start" "-a" "7054fd07b44207f28273ce8b7eb662bd47f8b867906e53d79feaea213224158d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7054fd07b44207f28273ce8b7eb662bd47f8b867906e53d79feaea213224158d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7054fd07b44207f28273ce8b7eb662bd47f8b867906e53d79feaea213224158d", kill_on_drop: false }`
[INFO] [stdout] 7054fd07b44207f28273ce8b7eb662bd47f8b867906e53d79feaea213224158d
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 882538ba41783f0288e5a82803b9612c505ed4d49f54dfb09ba9fa9cc4ab34ac
[INFO] running `Command { std: "docker" "start" "-a" "882538ba41783f0288e5a82803b9612c505ed4d49f54dfb09ba9fa9cc4ab34ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling forward_ref v1.0.0
[INFO] [stderr]    Compiling palindromeda v2.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/lib.rs:87:14
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl PalindromeDigits {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     const fn from(mut x: u64) -> Self {
[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 0.61s
[INFO] running `Command { std: "docker" "inspect" "882538ba41783f0288e5a82803b9612c505ed4d49f54dfb09ba9fa9cc4ab34ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "882538ba41783f0288e5a82803b9612c505ed4d49f54dfb09ba9fa9cc4ab34ac", kill_on_drop: false }`
[INFO] [stdout] 882538ba41783f0288e5a82803b9612c505ed4d49f54dfb09ba9fa9cc4ab34ac
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1830a4725d1b24be74b7610a7b83148099d4046d2e4f90bcef5cfb9cb4b1844
[INFO] running `Command { std: "docker" "start" "-a" "d1830a4725d1b24be74b7610a7b83148099d4046d2e4f90bcef5cfb9cb4b1844", kill_on_drop: false }`
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/lib.rs:87:14
[INFO] [stdout]    |
[INFO] [stdout] 82 | impl PalindromeDigits {
[INFO] [stdout]    | --------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 87 |     const fn from(mut x: u64) -> Self {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling palindromeda v2.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "d1830a4725d1b24be74b7610a7b83148099d4046d2e4f90bcef5cfb9cb4b1844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1830a4725d1b24be74b7610a7b83148099d4046d2e4f90bcef5cfb9cb4b1844", kill_on_drop: false }`
[INFO] [stdout] d1830a4725d1b24be74b7610a7b83148099d4046d2e4f90bcef5cfb9cb4b1844