[INFO] fetching crate epee-serde 0.1.2...
[INFO] checking epee-serde-0.1.2 against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] extracting crate epee-serde 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate epee-serde 0.1.2 on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate epee-serde 0.1.2
[INFO] finished tweaking crates.io crate epee-serde 0.1.2
[INFO] tweaked toml for crates.io crate epee-serde 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding darling v0.13.4 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_core v0.13.4 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_macro v0.13.4 (latest: v0.20.10)
[INFO] [stderr]       Adding hex-literal v0.3.4 (latest: v0.4.1)
[INFO] [stderr]       Adding serde_with v1.14.0 (latest: v3.9.0)
[INFO] [stderr]       Adding serde_with_macros v1.5.2 (latest: v3.9.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 637665b089708f30742e2a85b24ee626607ecd7a75022b37cd5d564dd6a75b17
[INFO] running `Command { std: "docker" "start" "-a" "637665b089708f30742e2a85b24ee626607ecd7a75022b37cd5d564dd6a75b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "637665b089708f30742e2a85b24ee626607ecd7a75022b37cd5d564dd6a75b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "637665b089708f30742e2a85b24ee626607ecd7a75022b37cd5d564dd6a75b17", kill_on_drop: false }`
[INFO] [stdout] 637665b089708f30742e2a85b24ee626607ecd7a75022b37cd5d564dd6a75b17
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71f9a71a68f5c7bcec2b529afa61e998dcded50ecce544cc4ca6f33eef9846e1
[INFO] running `Command { std: "docker" "start" "-a" "71f9a71a68f5c7bcec2b529afa61e998dcded50ecce544cc4ca6f33eef9846e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling serde_with_macros v1.5.2
[INFO] [stderr]     Checking epee-serde v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `KeyDeserializer` is never constructed
[INFO] [stdout]   --> src/value/de.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct KeyDeserializer;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_with v1.14.0
[INFO] [stdout] warning: struct `KeyDeserializer` is never constructed
[INFO] [stdout]   --> src/value/de.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 | struct KeyDeserializer;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.00s
[INFO] running `Command { std: "docker" "inspect" "71f9a71a68f5c7bcec2b529afa61e998dcded50ecce544cc4ca6f33eef9846e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71f9a71a68f5c7bcec2b529afa61e998dcded50ecce544cc4ca6f33eef9846e1", kill_on_drop: false }`
[INFO] [stdout] 71f9a71a68f5c7bcec2b529afa61e998dcded50ecce544cc4ca6f33eef9846e1