[INFO] fetching crate deseresp 0.1.9...
[INFO] checking deseresp-0.1.9 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate deseresp 0.1.9 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate deseresp 0.1.9
[INFO] finished tweaking crates.io crate deseresp 0.1.9
[INFO] tweaked toml for crates.io crate deseresp 0.1.9 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate deseresp 0.1.9 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea082c8210f6be05e79579706d7ed7c72a53aa5e3fa4ad3b361abd48ea98919e
[INFO] running `Command { std: "docker" "start" "-a" "ea082c8210f6be05e79579706d7ed7c72a53aa5e3fa4ad3b361abd48ea98919e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea082c8210f6be05e79579706d7ed7c72a53aa5e3fa4ad3b361abd48ea98919e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea082c8210f6be05e79579706d7ed7c72a53aa5e3fa4ad3b361abd48ea98919e", kill_on_drop: false }`
[INFO] [stdout] ea082c8210f6be05e79579706d7ed7c72a53aa5e3fa4ad3b361abd48ea98919e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 36f82d507ae9f1917fa36c4d9f6d0596fe2d62af64be7c4c9dd5559a55e04793
[INFO] running `Command { std: "docker" "start" "-a" "36f82d507ae9f1917fa36c4d9f6d0596fe2d62af64be7c4c9dd5559a55e04793", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking deseresp v0.1.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/types.rs:461:28
[INFO] [stdout]     |
[INFO] [stdout] 461 | struct PushVisitor<'de, P>(&'de PhantomData<P>);
[INFO] [stdout]     |        -----------         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/types.rs:533:38
[INFO] [stdout]     |
[INFO] [stdout] 533 | struct PushOrValueVisitor<'de, P, V>(&'de PhantomData<(P, V)>);
[INFO] [stdout]     |        ------------------            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/types.rs:461:28
[INFO] [stdout]     |
[INFO] [stdout] 461 | struct PushVisitor<'de, P>(&'de PhantomData<P>);
[INFO] [stdout]     |        -----------         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/types.rs:533:38
[INFO] [stdout]     |
[INFO] [stdout] 533 | struct PushOrValueVisitor<'de, P, V>(&'de PhantomData<(P, V)>);
[INFO] [stdout]     |        ------------------            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `Command { std: "docker" "inspect" "36f82d507ae9f1917fa36c4d9f6d0596fe2d62af64be7c4c9dd5559a55e04793", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36f82d507ae9f1917fa36c4d9f6d0596fe2d62af64be7c4c9dd5559a55e04793", kill_on_drop: false }`
[INFO] [stdout] 36f82d507ae9f1917fa36c4d9f6d0596fe2d62af64be7c4c9dd5559a55e04793