[INFO] fetching crate guessing_ergo 6.6.6...
[INFO] testing guessing_ergo-6.6.6 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate guessing_ergo 6.6.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate guessing_ergo 6.6.6
[INFO] finished tweaking crates.io crate guessing_ergo 6.6.6
[INFO] tweaked toml for crates.io crate guessing_ergo 6.6.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate guessing_ergo 6.6.6 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate guessing_ergo 6.6.6 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f36d656857b26db3363b4f3471109faff7fe3825637ef818b53366f46285a36
[INFO] running `Command { std: "docker" "start" "-a" "8f36d656857b26db3363b4f3471109faff7fe3825637ef818b53366f46285a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f36d656857b26db3363b4f3471109faff7fe3825637ef818b53366f46285a36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f36d656857b26db3363b4f3471109faff7fe3825637ef818b53366f46285a36", kill_on_drop: false }`
[INFO] [stdout] 8f36d656857b26db3363b4f3471109faff7fe3825637ef818b53366f46285a36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 776fd180de3c561e4ed65e8387b9c8f4c5fd083a716ec32961cd58a98cc79b7f
[INFO] running `Command { std: "docker" "start" "-a" "776fd180de3c561e4ed65e8387b9c8f4c5fd083a716ec32961cd58a98cc79b7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling getrandom v0.2.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling guessing_ergo v6.6.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.58s
[INFO] running `Command { std: "docker" "inspect" "776fd180de3c561e4ed65e8387b9c8f4c5fd083a716ec32961cd58a98cc79b7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "776fd180de3c561e4ed65e8387b9c8f4c5fd083a716ec32961cd58a98cc79b7f", kill_on_drop: false }`
[INFO] [stdout] 776fd180de3c561e4ed65e8387b9c8f4c5fd083a716ec32961cd58a98cc79b7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c3dd9e6aecd85b3ff31a26fc779467c2a6286a111f2488bf5d7167c30cd0ce8
[INFO] running `Command { std: "docker" "start" "-a" "9c3dd9e6aecd85b3ff31a26fc779467c2a6286a111f2488bf5d7167c30cd0ce8", kill_on_drop: false }`
[INFO] [stderr]    Compiling guessing_ergo v6.6.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.29s
[INFO] running `Command { std: "docker" "inspect" "9c3dd9e6aecd85b3ff31a26fc779467c2a6286a111f2488bf5d7167c30cd0ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c3dd9e6aecd85b3ff31a26fc779467c2a6286a111f2488bf5d7167c30cd0ce8", kill_on_drop: false }`
[INFO] [stdout] 9c3dd9e6aecd85b3ff31a26fc779467c2a6286a111f2488bf5d7167c30cd0ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b7a7fc7899304b0a19b1d2cee01d7a50c3769b3180499e5c44d613cb19fcc84
[INFO] running `Command { std: "docker" "start" "-a" "4b7a7fc7899304b0a19b1d2cee01d7a50c3769b3180499e5c44d613cb19fcc84", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[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]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/guessing_ergo-97eb79a2aaba6e88)
[INFO] running `Command { std: "docker" "inspect" "4b7a7fc7899304b0a19b1d2cee01d7a50c3769b3180499e5c44d613cb19fcc84", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b7a7fc7899304b0a19b1d2cee01d7a50c3769b3180499e5c44d613cb19fcc84", kill_on_drop: false }`
[INFO] [stdout] 4b7a7fc7899304b0a19b1d2cee01d7a50c3769b3180499e5c44d613cb19fcc84