[INFO] fetching crate serde-content 0.1.2...
[INFO] testing serde-content-0.1.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate serde-content 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate serde-content 0.1.2
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate serde-content 0.1.2
[INFO] tweaked toml for crates.io crate serde-content 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate serde-content 0.1.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate serde-content 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f45184165de33262cb8cb48749320d17c7fb2ea9d3039eba03655af9ae4be190
[INFO] running `Command { std: "docker" "start" "-a" "f45184165de33262cb8cb48749320d17c7fb2ea9d3039eba03655af9ae4be190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f45184165de33262cb8cb48749320d17c7fb2ea9d3039eba03655af9ae4be190", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f45184165de33262cb8cb48749320d17c7fb2ea9d3039eba03655af9ae4be190", kill_on_drop: false }`
[INFO] [stdout] f45184165de33262cb8cb48749320d17c7fb2ea9d3039eba03655af9ae4be190
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23040d26e8378b91eb91f61ed9b89034f2add0cd0a5ecebe1ddbbf0049230d9b
[INFO] running `Command { std: "docker" "start" "-a" "23040d26e8378b91eb91f61ed9b89034f2add0cd0a5ecebe1ddbbf0049230d9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling serde-content v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.28s
[INFO] running `Command { std: "docker" "inspect" "23040d26e8378b91eb91f61ed9b89034f2add0cd0a5ecebe1ddbbf0049230d9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23040d26e8378b91eb91f61ed9b89034f2add0cd0a5ecebe1ddbbf0049230d9b", kill_on_drop: false }`
[INFO] [stdout] 23040d26e8378b91eb91f61ed9b89034f2add0cd0a5ecebe1ddbbf0049230d9b
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef81026dfe896ee7ff365d34d75fa7b9492494285720d0ca1a12b3836730d31e
[INFO] running `Command { std: "docker" "start" "-a" "ef81026dfe896ee7ff365d34d75fa7b9492494285720d0ca1a12b3836730d31e", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde-content v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Bar` is never constructed
[INFO] [stdout]   --> src/tests.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Bar(Value<'static>);
[INFO] [stdout]    |        ^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:5:24
[INFO] [stdout]    |
[INFO] [stdout]  5 | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout]    = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: struct `Foo` is never constructed
[INFO] [stdout]   --> src/tests.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Foo(Bar);
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `serde-content` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ef81026dfe896ee7ff365d34d75fa7b9492494285720d0ca1a12b3836730d31e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef81026dfe896ee7ff365d34d75fa7b9492494285720d0ca1a12b3836730d31e", kill_on_drop: false }`
[INFO] [stdout] ef81026dfe896ee7ff365d34d75fa7b9492494285720d0ca1a12b3836730d31e