[INFO] fetching crate zisvalidator_derive 0.1.6...
[INFO] checking zisvalidator_derive-0.1.6 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate zisvalidator_derive 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate zisvalidator_derive 0.1.6 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate zisvalidator_derive 0.1.6
[INFO] finished tweaking crates.io crate zisvalidator_derive 0.1.6
[INFO] tweaked toml for crates.io crate zisvalidator_derive 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1d8772db38999f502b6a080bc3b0b919e25cac46b17e4b2cfb0262da12d3b0ee
[INFO] running `Command { std: "docker" "start" "-a" "1d8772db38999f502b6a080bc3b0b919e25cac46b17e4b2cfb0262da12d3b0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1d8772db38999f502b6a080bc3b0b919e25cac46b17e4b2cfb0262da12d3b0ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8772db38999f502b6a080bc3b0b919e25cac46b17e4b2cfb0262da12d3b0ee", kill_on_drop: false }`
[INFO] [stdout] 1d8772db38999f502b6a080bc3b0b919e25cac46b17e4b2cfb0262da12d3b0ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9d1bcb0c02580c31e961db2a72d71160b12362f3f83d419ae9097889c7688c7
[INFO] running `Command { std: "docker" "start" "-a" "b9d1bcb0c02580c31e961db2a72d71160b12362f3f83d419ae9097889c7688c7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking syn v1.0.74
[INFO] [stderr]     Checking zisvalidator_derive v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `MESSAGE`
[INFO] [stdout]   --> src/symbol.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub const MESSAGE: Symbol = Symbol("message");
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MESSAGE`
[INFO] [stdout]   --> src/symbol.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub const MESSAGE: Symbol = Symbol("message");
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.87s
[INFO] running `Command { std: "docker" "inspect" "b9d1bcb0c02580c31e961db2a72d71160b12362f3f83d419ae9097889c7688c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9d1bcb0c02580c31e961db2a72d71160b12362f3f83d419ae9097889c7688c7", kill_on_drop: false }`
[INFO] [stdout] b9d1bcb0c02580c31e961db2a72d71160b12362f3f83d419ae9097889c7688c7