[INFO] fetching crate multi-map 1.3.0...
[INFO] checking multi-map-1.3.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate multi-map 1.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate multi-map 1.3.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "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] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f14ba649161471a7f23a1ed6d9b3c3900b29aa010a43d4a63399c983f089d53
[INFO] running `Command { std: "docker" "start" "-a" "8f14ba649161471a7f23a1ed6d9b3c3900b29aa010a43d4a63399c983f089d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f14ba649161471a7f23a1ed6d9b3c3900b29aa010a43d4a63399c983f089d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f14ba649161471a7f23a1ed6d9b3c3900b29aa010a43d4a63399c983f089d53", kill_on_drop: false }`
[INFO] [stdout] 8f14ba649161471a7f23a1ed6d9b3c3900b29aa010a43d4a63399c983f089d53
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99753e8d135f0e1e37a8d732981d6506c12700326027385859a5ffb20e58e40e
[INFO] running `Command { std: "docker" "start" "-a" "99753e8d135f0e1e37a8d732981d6506c12700326027385859a5ffb20e58e40e", 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 0.35s
[INFO] running `Command { std: "docker" "inspect" "99753e8d135f0e1e37a8d732981d6506c12700326027385859a5ffb20e58e40e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99753e8d135f0e1e37a8d732981d6506c12700326027385859a5ffb20e58e40e", kill_on_drop: false }`
[INFO] [stdout] 99753e8d135f0e1e37a8d732981d6506c12700326027385859a5ffb20e58e40e