[INFO] fetching crate avrow 0.2.1...
[INFO] testing avrow-0.2.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate avrow 0.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate avrow 0.2.1 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate avrow 0.2.1
[INFO] finished tweaking crates.io crate avrow 0.2.1
[INFO] tweaked toml for crates.io crate avrow 0.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate avrow 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fstrings v0.2.3
[INFO] [stderr]   Downloaded fstrings-proc-macro v0.2.3
[INFO] [stderr]   Downloaded serde_json v1.0.58
[INFO] [stderr]   Downloaded integer-encoding v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f03f548986a79e40009996ed8b7bc6be1893f4129346be2c29f57dc81e05b0a6
[INFO] running `Command { std: "docker" "start" "-a" "f03f548986a79e40009996ed8b7bc6be1893f4129346be2c29f57dc81e05b0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f03f548986a79e40009996ed8b7bc6be1893f4129346be2c29f57dc81e05b0a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03f548986a79e40009996ed8b7bc6be1893f4129346be2c29f57dc81e05b0a6", kill_on_drop: false }`
[INFO] [stdout] f03f548986a79e40009996ed8b7bc6be1893f4129346be2c29f57dc81e05b0a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97200bd064f1ccfd7b9b066d9afcbd13d6d7c162ef2cfddd47a4b85faf3b47d1
[INFO] running `Command { std: "docker" "start" "-a" "97200bd064f1ccfd7b9b066d9afcbd13d6d7c162ef2cfddd47a4b85faf3b47d1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde_json v1.0.58
[INFO] [stderr]    Compiling once_cell v1.4.1
[INFO] [stderr]    Compiling integer-encoding v2.0.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.21
[INFO] [stderr]    Compiling thiserror v1.0.21
[INFO] [stderr]    Compiling avrow v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: field is never read: `aliases`
[INFO] [stdout]    --> src/schema/common.rs:226:5
[INFO] [stdout]     |
[INFO] [stdout] 226 |     pub(crate) aliases: Option<Vec<String>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:62:9
[INFO] [stdout]     |
[INFO] [stdout] 62  | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `avrow` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "97200bd064f1ccfd7b9b066d9afcbd13d6d7c162ef2cfddd47a4b85faf3b47d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97200bd064f1ccfd7b9b066d9afcbd13d6d7c162ef2cfddd47a4b85faf3b47d1", kill_on_drop: false }`
[INFO] [stdout] 97200bd064f1ccfd7b9b066d9afcbd13d6d7c162ef2cfddd47a4b85faf3b47d1