[INFO] fetching crate multi-map 1.3.0...
[INFO] checking multi-map-1.3.0 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] extracting crate multi-map 1.3.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate multi-map 1.3.0 on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate multi-map 1.3.0
[INFO] finished tweaking crates.io crate multi-map 1.3.0
[INFO] tweaked toml for crates.io crate multi-map 1.3.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3aad911c15cad353fee9c7e51916d646bf33b77f19693acd695e5cbd45fb523b
[INFO] running `Command { std: "docker" "start" "-a" "3aad911c15cad353fee9c7e51916d646bf33b77f19693acd695e5cbd45fb523b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3aad911c15cad353fee9c7e51916d646bf33b77f19693acd695e5cbd45fb523b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aad911c15cad353fee9c7e51916d646bf33b77f19693acd695e5cbd45fb523b", kill_on_drop: false }`
[INFO] [stdout] 3aad911c15cad353fee9c7e51916d646bf33b77f19693acd695e5cbd45fb523b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7543c2bacbc6cab2cd5b566b2d9432eb18f17dd7dce6767364f6031e665eb9f9
[INFO] running `Command { std: "docker" "start" "-a" "7543c2bacbc6cab2cd5b566b2d9432eb18f17dd7dce6767364f6031e665eb9f9", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking multi-map v1.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MultiCount` is never constructed
[INFO] [stdout]    --> src/lib.rs:440:12
[INFO] [stdout]     |
[INFO] [stdout] 440 |     struct MultiCount<'a>(i32, &'a str, &'a str);
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MultiCountOwned` is never constructed
[INFO] [stdout]    --> src/lib.rs:442:12
[INFO] [stdout]     |
[INFO] [stdout] 442 |     struct MultiCountOwned(i32, String, String);
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "7543c2bacbc6cab2cd5b566b2d9432eb18f17dd7dce6767364f6031e665eb9f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7543c2bacbc6cab2cd5b566b2d9432eb18f17dd7dce6767364f6031e665eb9f9", kill_on_drop: false }`
[INFO] [stdout] 7543c2bacbc6cab2cd5b566b2d9432eb18f17dd7dce6767364f6031e665eb9f9