[INFO] fetching crate libtombala 2.3.1...
[INFO] testing libtombala-2.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate libtombala 2.3.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate libtombala 2.3.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libtombala 2.3.1
[INFO] finished tweaking crates.io crate libtombala 2.3.1
[INFO] tweaked toml for crates.io crate libtombala 2.3.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43c5bf97bf533ff5f07c7e19427557be74364ceaf0ae573e19ebd65ce4628ee8
[INFO] running `Command { std: "docker" "start" "-a" "43c5bf97bf533ff5f07c7e19427557be74364ceaf0ae573e19ebd65ce4628ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43c5bf97bf533ff5f07c7e19427557be74364ceaf0ae573e19ebd65ce4628ee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43c5bf97bf533ff5f07c7e19427557be74364ceaf0ae573e19ebd65ce4628ee8", kill_on_drop: false }`
[INFO] [stdout] 43c5bf97bf533ff5f07c7e19427557be74364ceaf0ae573e19ebd65ce4628ee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6815c40f97dd698064325c41a148be11c52969cc1052682ee6e33d1c068e413
[INFO] running `Command { std: "docker" "start" "-a" "a6815c40f97dd698064325c41a148be11c52969cc1052682ee6e33d1c068e413", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling libtombala v2.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.21s
[INFO] running `Command { std: "docker" "inspect" "a6815c40f97dd698064325c41a148be11c52969cc1052682ee6e33d1c068e413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6815c40f97dd698064325c41a148be11c52969cc1052682ee6e33d1c068e413", kill_on_drop: false }`
[INFO] [stdout] a6815c40f97dd698064325c41a148be11c52969cc1052682ee6e33d1c068e413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 888b15d56e0e3ed05c4656d519a363abe20b9b815c2025779b5a1f09aa54f4f4
[INFO] running `Command { std: "docker" "start" "-a" "888b15d56e0e3ed05c4656d519a363abe20b9b815c2025779b5a1f09aa54f4f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libtombala v2.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "888b15d56e0e3ed05c4656d519a363abe20b9b815c2025779b5a1f09aa54f4f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "888b15d56e0e3ed05c4656d519a363abe20b9b815c2025779b5a1f09aa54f4f4", kill_on_drop: false }`
[INFO] [stdout] 888b15d56e0e3ed05c4656d519a363abe20b9b815c2025779b5a1f09aa54f4f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ec0b2936ed82c5bedbbb4ed27abd76f57e6fa21fad3edabc0a99d38685cc37cf
[INFO] running `Command { std: "docker" "start" "-a" "ec0b2936ed82c5bedbbb4ed27abd76f57e6fa21fad3edabc0a99d38685cc37cf", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libtombala-b03dd874c6ed0612)
[INFO] [stdout] test card_generator::tests::examine_card ... ignored
[INFO] [stdout] test card_generator::tests::test_GenerateNCards ... ok
[INFO] [stdout] test card_generator::tests::generate_row_4_zeros ... ok
[INFO] [stdout] test card_generator::tests::row_numbers_increment_by_10 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 3.00s
[INFO] [stderr]    Doc-tests libtombala
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "ec0b2936ed82c5bedbbb4ed27abd76f57e6fa21fad3edabc0a99d38685cc37cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec0b2936ed82c5bedbbb4ed27abd76f57e6fa21fad3edabc0a99d38685cc37cf", kill_on_drop: false }`
[INFO] [stdout] ec0b2936ed82c5bedbbb4ed27abd76f57e6fa21fad3edabc0a99d38685cc37cf