[INFO] fetching crate binread 2.1.1...
[INFO] checking binread-2.1.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate binread 2.1.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate binread 2.1.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate binread 2.1.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate binread 2.1.1
[INFO] tweaked toml for crates.io crate binread 2.1.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded binread_derive v2.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ae4447c52f773b8b8f0a3c9d207bb2921d8fe2f44099a799ee1527453585b006
[INFO] running `Command { std: "docker" "start" "-a" "ae4447c52f773b8b8f0a3c9d207bb2921d8fe2f44099a799ee1527453585b006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ae4447c52f773b8b8f0a3c9d207bb2921d8fe2f44099a799ee1527453585b006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae4447c52f773b8b8f0a3c9d207bb2921d8fe2f44099a799ee1527453585b006", kill_on_drop: false }`
[INFO] [stdout] ae4447c52f773b8b8f0a3c9d207bb2921d8fe2f44099a799ee1527453585b006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ec6be78ef7aafb770340d575964f5027f3ab20edd55cb492be16bffd941f92e
[INFO] running `Command { std: "docker" "start" "-a" "1ec6be78ef7aafb770340d575964f5027f3ab20edd55cb492be16bffd941f92e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling modular-bitfield-impl v0.9.0
[INFO] [stderr]    Compiling binread_derive v2.0.0
[INFO] [stderr]     Checking modular-bitfield v0.9.0
[INFO] [stderr]     Checking binread v2.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking trybuild v1.0.42
[INFO] [stdout] warning: variant is never constructed: `End`
[INFO] [stdout]   --> src/io/no_std.rs:79:5
[INFO] [stdout]    |
[INFO] [stdout] 79 |     End(i64),
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Current`
[INFO] [stdout]   --> src/io/no_std.rs:80:5
[INFO] [stdout]    |
[INFO] [stdout] 80 |     Current(i64),
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.12s
[INFO] running `Command { std: "docker" "inspect" "1ec6be78ef7aafb770340d575964f5027f3ab20edd55cb492be16bffd941f92e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ec6be78ef7aafb770340d575964f5027f3ab20edd55cb492be16bffd941f92e", kill_on_drop: false }`
[INFO] [stdout] 1ec6be78ef7aafb770340d575964f5027f3ab20edd55cb492be16bffd941f92e