[INFO] fetching crate async-xml-derive 0.2.3...
[INFO] checking async-xml-derive-0.2.3 against try#da0275e101cdc809ce291ed8b64d6f82c6b65467 for pr-134276
[INFO] extracting crate async-xml-derive 0.2.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate async-xml-derive 0.2.3 on toolchain da0275e101cdc809ce291ed8b64d6f82c6b65467
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-xml-derive 0.2.3
[INFO] finished tweaking crates.io crate async-xml-derive 0.2.3
[INFO] tweaked toml for crates.io crate async-xml-derive 0.2.3 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" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.90)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a3e3315ef9c7a270dabace8ccb9713b737802cd0096d4658135aa0c082c0bc5
[INFO] running `Command { std: "docker" "start" "-a" "3a3e3315ef9c7a270dabace8ccb9713b737802cd0096d4658135aa0c082c0bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a3e3315ef9c7a270dabace8ccb9713b737802cd0096d4658135aa0c082c0bc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a3e3315ef9c7a270dabace8ccb9713b737802cd0096d4658135aa0c082c0bc5", kill_on_drop: false }`
[INFO] [stdout] 3a3e3315ef9c7a270dabace8ccb9713b737802cd0096d4658135aa0c082c0bc5
[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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+da0275e101cdc809ce291ed8b64d6f82c6b65467" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a14851c202a04197fc774a3a4fda5067895493450cd3e8a49d10a64e4a8fbbd
[INFO] running `Command { std: "docker" "start" "-a" "2a14851c202a04197fc774a3a4fda5067895493450cd3e8a49d10a64e4a8fbbd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]     Checking unicode-ident v1.0.14
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking quote v1.0.37
[INFO] [stderr]     Checking async-xml-derive v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `field_type` is never read
[INFO] [stdout]   --> src/field.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct FieldData<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub field_type: FieldType,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field_type` is never read
[INFO] [stdout]   --> src/field.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub struct FieldData<'a> {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub field_type: FieldType,
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.99s
[INFO] running `Command { std: "docker" "inspect" "2a14851c202a04197fc774a3a4fda5067895493450cd3e8a49d10a64e4a8fbbd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a14851c202a04197fc774a3a4fda5067895493450cd3e8a49d10a64e4a8fbbd", kill_on_drop: false }`
[INFO] [stdout] 2a14851c202a04197fc774a3a4fda5067895493450cd3e8a49d10a64e4a8fbbd