[INFO] fetching crate sbml 0.2.2...
[INFO] building sbml-0.2.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate sbml 0.2.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate sbml 0.2.2
[INFO] finished tweaking crates.io crate sbml 0.2.2
[INFO] tweaked toml for crates.io crate sbml 0.2.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sbml 0.2.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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] [stderr]       Adding roxmltree v0.10.1 (available: v0.20.0)
[INFO] [stderr]       Adding serde_plain v0.3.0 (available: v1.0.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded roxmltree v0.10.1
[INFO] [stderr]   Downloaded mathml v0.4.4
[INFO] [stderr]   Downloaded serde_plain v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a22c9b5ea728e96bc2d8fc3e27b94974a67f3e1aa370a6fe5875e5760e853569
[INFO] running `Command { std: "docker" "start" "-a" "a22c9b5ea728e96bc2d8fc3e27b94974a67f3e1aa370a6fe5875e5760e853569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a22c9b5ea728e96bc2d8fc3e27b94974a67f3e1aa370a6fe5875e5760e853569", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a22c9b5ea728e96bc2d8fc3e27b94974a67f3e1aa370a6fe5875e5760e853569", kill_on_drop: false }`
[INFO] [stdout] a22c9b5ea728e96bc2d8fc3e27b94974a67f3e1aa370a6fe5875e5760e853569
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60a1c3d74091a64fe62432fd9910ee89fc113f1a17f3ce81663f007b8b5169e6
[INFO] running `Command { std: "docker" "start" "-a" "60a1c3d74091a64fe62432fd9910ee89fc113f1a17f3ce81663f007b8b5169e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling roxmltree v0.10.1
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling serde_plain v0.3.0
[INFO] [stderr]    Compiling mathml v0.4.4
[INFO] [stderr]    Compiling sbml v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Function` is never constructed
[INFO] [stdout]    --> src/base_types.rs:190:12
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct Function {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rule` is never used
[INFO] [stdout]    --> src/base_types.rs:194:10
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub enum Rule<'a> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.74s
[INFO] running `Command { std: "docker" "inspect" "60a1c3d74091a64fe62432fd9910ee89fc113f1a17f3ce81663f007b8b5169e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a1c3d74091a64fe62432fd9910ee89fc113f1a17f3ce81663f007b8b5169e6", kill_on_drop: false }`
[INFO] [stdout] 60a1c3d74091a64fe62432fd9910ee89fc113f1a17f3ce81663f007b8b5169e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 743c37b2e4be27b1b216010d508f27f07200fa4da0332ca8ba129203b4956a33
[INFO] running `Command { std: "docker" "start" "-a" "743c37b2e4be27b1b216010d508f27f07200fa4da0332ca8ba129203b4956a33", kill_on_drop: false }`
[INFO] [stderr]    Compiling sbml v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Function` is never constructed
[INFO] [stdout]    --> src/base_types.rs:190:12
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct Function {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rule` is never used
[INFO] [stdout]    --> src/base_types.rs:194:10
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub enum Rule<'a> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Function` is never constructed
[INFO] [stdout]    --> src/base_types.rs:190:12
[INFO] [stdout]     |
[INFO] [stdout] 190 | pub struct Function {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Rule` is never used
[INFO] [stdout]    --> src/base_types.rs:194:10
[INFO] [stdout]     |
[INFO] [stdout] 194 | pub enum Rule<'a> {
[INFO] [stdout]     |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "743c37b2e4be27b1b216010d508f27f07200fa4da0332ca8ba129203b4956a33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "743c37b2e4be27b1b216010d508f27f07200fa4da0332ca8ba129203b4956a33", kill_on_drop: false }`
[INFO] [stdout] 743c37b2e4be27b1b216010d508f27f07200fa4da0332ca8ba129203b4956a33