[INFO] fetching crate air-interpreter-value 0.1.0...
[INFO] checking air-interpreter-value-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate air-interpreter-value 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate air-interpreter-value 0.1.0
[INFO] finished tweaking crates.io crate air-interpreter-value 0.1.0
[INFO] tweaked toml for crates.io crate air-interpreter-value 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate air-interpreter-value 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dac0633c36cb51c4610a58cbc8a50111a4ec08913fa95c0dc87bee478bcb3d26
[INFO] running `Command { std: "docker" "start" "-a" "dac0633c36cb51c4610a58cbc8a50111a4ec08913fa95c0dc87bee478bcb3d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dac0633c36cb51c4610a58cbc8a50111a4ec08913fa95c0dc87bee478bcb3d26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dac0633c36cb51c4610a58cbc8a50111a4ec08913fa95c0dc87bee478bcb3d26", kill_on_drop: false }`
[INFO] [stdout] dac0633c36cb51c4610a58cbc8a50111a4ec08913fa95c0dc87bee478bcb3d26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52ad84278218bf22da61576a42ee4c77f16f372bdf16b49b12a09c03060e55c3
[INFO] running `Command { std: "docker" "start" "-a" "52ad84278218bf22da61576a42ee4c77f16f372bdf16b49b12a09c03060e55c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking air-interpreter-value v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `serde::ser::Serializer`
[INFO] [stdout]   --> src/value/mod.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub use serde::ser::Serializer;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `serde::ser::Serializer`
[INFO] [stdout]   --> src/value/mod.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub use serde::ser::Serializer;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Type` is never constructed
[INFO] [stdout]   --> src/value/index.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct Type<'a>(&'a JValue);
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Type` is never constructed
[INFO] [stdout]   --> src/value/index.rs:89:8
[INFO] [stdout]    |
[INFO] [stdout] 89 | struct Type<'a>(&'a JValue);
[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 5.44s
[INFO] running `Command { std: "docker" "inspect" "52ad84278218bf22da61576a42ee4c77f16f372bdf16b49b12a09c03060e55c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52ad84278218bf22da61576a42ee4c77f16f372bdf16b49b12a09c03060e55c3", kill_on_drop: false }`
[INFO] [stdout] 52ad84278218bf22da61576a42ee4c77f16f372bdf16b49b12a09c03060e55c3