[INFO] fetching crate fjson 0.3.1...
[INFO] checking fjson-0.3.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate fjson 0.3.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate fjson 0.3.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fjson 0.3.1
[INFO] finished tweaking crates.io crate fjson 0.3.1
[INFO] tweaked toml for crates.io crate fjson 0.3.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c61234f7425b1f1e826934c33232b6d9f94e87802118a582f5513610608430b
[INFO] running `Command { std: "docker" "start" "-a" "7c61234f7425b1f1e826934c33232b6d9f94e87802118a582f5513610608430b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c61234f7425b1f1e826934c33232b6d9f94e87802118a582f5513610608430b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c61234f7425b1f1e826934c33232b6d9f94e87802118a582f5513610608430b", kill_on_drop: false }`
[INFO] [stdout] 7c61234f7425b1f1e826934c33232b6d9f94e87802118a582f5513610608430b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 737624ef7b3d4536aec123f5a04d3a4de4ceb6b9a83bba0f6f4080de3e576161
[INFO] running `Command { std: "docker" "start" "-a" "737624ef7b3d4536aec123f5a04d3a4de4ceb6b9a83bba0f6f4080de3e576161", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.127
[INFO] [stderr]     Checking equivalent v1.0.1
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking serde v1.0.209
[INFO] [stderr]     Checking fjson v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/scanner.rs:250:51
[INFO] [stdout]     |
[INFO] [stdout] 250 |             token: Token::LineComment(&self.input[(start + 2..end)]),
[INFO] [stdout]     |                                                   ^              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 250 -             token: Token::LineComment(&self.input[(start + 2..end)]),
[INFO] [stdout] 250 +             token: Token::LineComment(&self.input[start + 2..end]),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking indexmap v2.4.0
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/scanner.rs:250:51
[INFO] [stdout]     |
[INFO] [stdout] 250 |             token: Token::LineComment(&self.input[(start + 2..end)]),
[INFO] [stdout]     |                                                   ^              ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 250 -             token: Token::LineComment(&self.input[(start + 2..end)]),
[INFO] [stdout] 250 +             token: Token::LineComment(&self.input[start + 2..end]),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "737624ef7b3d4536aec123f5a04d3a4de4ceb6b9a83bba0f6f4080de3e576161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "737624ef7b3d4536aec123f5a04d3a4de4ceb6b9a83bba0f6f4080de3e576161", kill_on_drop: false }`
[INFO] [stdout] 737624ef7b3d4536aec123f5a04d3a4de4ceb6b9a83bba0f6f4080de3e576161