[INFO] fetching crate opt2r 0.2.1...
[INFO] testing opt2r-0.2.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate opt2r 0.2.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate opt2r 0.2.1
[INFO] finished tweaking crates.io crate opt2r 0.2.1
[INFO] tweaked toml for crates.io crate opt2r 0.2.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate opt2r 0.2.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6014ad8291970d6631c52dd12ac2465f06d3e3a09e45654cb936ee1f4ae6d56
[INFO] running `Command { std: "docker" "start" "-a" "f6014ad8291970d6631c52dd12ac2465f06d3e3a09e45654cb936ee1f4ae6d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6014ad8291970d6631c52dd12ac2465f06d3e3a09e45654cb936ee1f4ae6d56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6014ad8291970d6631c52dd12ac2465f06d3e3a09e45654cb936ee1f4ae6d56", kill_on_drop: false }`
[INFO] [stdout] f6014ad8291970d6631c52dd12ac2465f06d3e3a09e45654cb936ee1f4ae6d56
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e1bbd0bbe37605a75735626636ca395ccae20457f3819af16c9ff76de1a5c91
[INFO] running `Command { std: "docker" "start" "-a" "6e1bbd0bbe37605a75735626636ca395ccae20457f3819af16c9ff76de1a5c91", kill_on_drop: false }`
[INFO] [stderr]    Compiling opt2r v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "6e1bbd0bbe37605a75735626636ca395ccae20457f3819af16c9ff76de1a5c91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e1bbd0bbe37605a75735626636ca395ccae20457f3819af16c9ff76de1a5c91", kill_on_drop: false }`
[INFO] [stdout] 6e1bbd0bbe37605a75735626636ca395ccae20457f3819af16c9ff76de1a5c91
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcfe10063014e4ecfa52d3979dedcd1a9e82d411e3c0a6dd30976d038b2932dd
[INFO] running `Command { std: "docker" "start" "-a" "dcfe10063014e4ecfa52d3979dedcd1a9e82d411e3c0a6dd30976d038b2932dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling opt2r v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "dcfe10063014e4ecfa52d3979dedcd1a9e82d411e3c0a6dd30976d038b2932dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcfe10063014e4ecfa52d3979dedcd1a9e82d411e3c0a6dd30976d038b2932dd", kill_on_drop: false }`
[INFO] [stdout] dcfe10063014e4ecfa52d3979dedcd1a9e82d411e3c0a6dd30976d038b2932dd
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30246051c84c045f6929ffe4fd8c804bdc0dbdbb111cad0a6e0eb8f8808412f2
[INFO] running `Command { std: "docker" "start" "-a" "30246051c84c045f6929ffe4fd8c804bdc0dbdbb111cad0a6e0eb8f8808412f2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/opt2r-4184e1cdcacb8b42)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests opt2r
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 6) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "30246051c84c045f6929ffe4fd8c804bdc0dbdbb111cad0a6e0eb8f8808412f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30246051c84c045f6929ffe4fd8c804bdc0dbdbb111cad0a6e0eb8f8808412f2", kill_on_drop: false }`
[INFO] [stdout] 30246051c84c045f6929ffe4fd8c804bdc0dbdbb111cad0a6e0eb8f8808412f2