[INFO] cloning repository https://github.com/lffg2/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lffg2/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flffg2%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flffg2%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1360b62513faaf1c3c61b0035014d08aef3121f1
[INFO] testing lffg2/rust-playground against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flffg2%2Frust-playground" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lffg2/rust-playground on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lffg2/rust-playground
[INFO] finished tweaking git repo https://github.com/lffg2/rust-playground
[INFO] tweaked toml for git repo https://github.com/lffg2/rust-playground written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/lffg2/rust-playground already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c77f2cf85530d415981ea23bb0c459f3c3ef1a5084ba7a8765d784c6ad7b41ff
[INFO] running `Command { std: "docker" "start" "-a" "c77f2cf85530d415981ea23bb0c459f3c3ef1a5084ba7a8765d784c6ad7b41ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c77f2cf85530d415981ea23bb0c459f3c3ef1a5084ba7a8765d784c6ad7b41ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c77f2cf85530d415981ea23bb0c459f3c3ef1a5084ba7a8765d784c6ad7b41ff", kill_on_drop: false }`
[INFO] [stdout] c77f2cf85530d415981ea23bb0c459f3c3ef1a5084ba7a8765d784c6ad7b41ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d1bee15d73e3a76bd1ef5de8c648331d35f46b9a21e3ca34b0a82301c557dae7
[INFO] running `Command { std: "docker" "start" "-a" "d1bee15d73e3a76bd1ef5de8c648331d35f46b9a21e3ca34b0a82301c557dae7", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-to-arr v0.1.0 (/opt/rustwide/workdir/experiments/iter-to-arr)
[INFO] [stderr]    Compiling stack-overflow v0.1.0 (/opt/rustwide/workdir/experiments/stack-overflow)
[INFO] [stderr]    Compiling string-builder v0.1.0 (/opt/rustwide/workdir/experiments/string-builder)
[INFO] [stderr]    Compiling binary-search-index v0.1.0 (/opt/rustwide/workdir/experiments/binary-search-index)
[INFO] [stderr]    Compiling stdin-take-nums v0.1.0 (/opt/rustwide/workdir/experiments/stdin-take-nums)
[INFO] [stderr]    Compiling ast-visitor-etc v0.1.0 (/opt/rustwide/workdir/experiments/ast-visitor-etc)
[INFO] [stderr]    Compiling signed-vs-unsigned v0.1.0 (/opt/rustwide/workdir/experiments/signed-vs-unsigned)
[INFO] [stderr]    Compiling bin-alarms v0.1.0 (/opt/rustwide/workdir/experiments/bitwise-alarms)
[INFO] [stderr]    Compiling multi-test v0.1.0 (/opt/rustwide/workdir/experiments/multi-test)
[INFO] [stderr]    Compiling iter-with-last v0.1.0 (/opt/rustwide/workdir/experiments/iter-with-last)
[INFO] [stderr]    Compiling iter-freq v0.1.0 (/opt/rustwide/workdir/experiments/iter-freq)
[INFO] [stderr]    Compiling collatz-toctou v0.1.0 (/opt/rustwide/workdir/experiments/collatz-toctou)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]  --> experiments/stack-overflow/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn rec(val: u64) {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 4 |     return rec(val + 1);
[INFO] [stdout]   |            ------------ recursive call site
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.36s
[INFO] running `Command { std: "docker" "inspect" "d1bee15d73e3a76bd1ef5de8c648331d35f46b9a21e3ca34b0a82301c557dae7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1bee15d73e3a76bd1ef5de8c648331d35f46b9a21e3ca34b0a82301c557dae7", kill_on_drop: false }`
[INFO] [stdout] d1bee15d73e3a76bd1ef5de8c648331d35f46b9a21e3ca34b0a82301c557dae7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 29e516a6bc02fc41310a72e46c6bad639d83e7e73d518c8c1239e05fc10ea78f
[INFO] running `Command { std: "docker" "start" "-a" "29e516a6bc02fc41310a72e46c6bad639d83e7e73d518c8c1239e05fc10ea78f", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-freq v0.1.0 (/opt/rustwide/workdir/experiments/iter-freq)
[INFO] [stderr]    Compiling iter-to-arr v0.1.0 (/opt/rustwide/workdir/experiments/iter-to-arr)
[INFO] [stderr]    Compiling collatz-toctou v0.1.0 (/opt/rustwide/workdir/experiments/collatz-toctou)
[INFO] [stderr]    Compiling stdin-take-nums v0.1.0 (/opt/rustwide/workdir/experiments/stdin-take-nums)
[INFO] [stderr]    Compiling iter-with-last v0.1.0 (/opt/rustwide/workdir/experiments/iter-with-last)
[INFO] [stderr]    Compiling bin-alarms v0.1.0 (/opt/rustwide/workdir/experiments/bitwise-alarms)
[INFO] [stderr]    Compiling string-builder v0.1.0 (/opt/rustwide/workdir/experiments/string-builder)
[INFO] [stderr]    Compiling stack-overflow v0.1.0 (/opt/rustwide/workdir/experiments/stack-overflow)
[INFO] [stderr]    Compiling signed-vs-unsigned v0.1.0 (/opt/rustwide/workdir/experiments/signed-vs-unsigned)
[INFO] [stderr]    Compiling ast-visitor-etc v0.1.0 (/opt/rustwide/workdir/experiments/ast-visitor-etc)
[INFO] [stderr]    Compiling binary-search-index v0.1.0 (/opt/rustwide/workdir/experiments/binary-search-index)
[INFO] [stderr]    Compiling multi-test v0.1.0 (/opt/rustwide/workdir/experiments/multi-test)
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]  --> experiments/stack-overflow/src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn rec(val: u64) {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] ...
[INFO] [stdout] 4 |     return rec(val + 1);
[INFO] [stdout]   |            ------------ recursive call site
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.15s
[INFO] running `Command { std: "docker" "inspect" "29e516a6bc02fc41310a72e46c6bad639d83e7e73d518c8c1239e05fc10ea78f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29e516a6bc02fc41310a72e46c6bad639d83e7e73d518c8c1239e05fc10ea78f", kill_on_drop: false }`
[INFO] [stdout] 29e516a6bc02fc41310a72e46c6bad639d83e7e73d518c8c1239e05fc10ea78f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a4417c39e06ea3563938fe28d024a6d5cdbc092cf874a6acefc0e87f9b6020f
[INFO] running `Command { std: "docker" "start" "-a" "7a4417c39e06ea3563938fe28d024a6d5cdbc092cf874a6acefc0e87f9b6020f", kill_on_drop: false }`
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]  --> experiments/stack-overflow/src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn rec(val: u64) {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] ...
[INFO] [stderr] 4 |     return rec(val + 1);
[INFO] [stderr]   |            ------------ recursive call site
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr]   = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr] 
[INFO] [stderr] warning: `stack-overflow` (bin "stack-overflow" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ast_visitor_etc-e2fc28b16fec395f)
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_eval_expr ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bin_alarms-10c6d63c71a37063)
[INFO] [stdout] test tests::test_lisp_printer ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::t1 ... ok
[INFO] [stdout] test tests::t3 ... ok
[INFO] [stdout] test tests::t2 ... ok
[INFO] [stdout] test tests::t5 ... ok
[INFO] [stdout] test tests::t4 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/binary_search_index-de1dff9df010b582)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/collatz_toctou-56eb31bb325127db)
[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 (/opt/rustwide/target/debug/deps/iter_freq-0cd57a688fe2ae13)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_freq_fn ... ok
[INFO] [stdout] test tests::test_freq_extension_trait ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iter_to_arr-09287f9caf3f2648)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_1 ... ok
[INFO] [stdout] test tests::test_2 ... ok
[INFO] [stdout] test tests::test_3 ... ok
[INFO] [stdout] test tests::test_4 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/iter_with_last-38286edd942fa8a1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/multi_test-06abea937fb1c079)
[INFO] [stdout] test tests::ok ... ok
[INFO] [stdout] test tests::fail - should panic ... ok
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/signed_vs_unsigned-8dbfe738c9531c99)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stack_overflow-3a013ad84ee56da3)
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/stdin_take_nums-d266ff34e9823608)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/string_builder-4ed082d28b838b49)
[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] [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] [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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests ast-visitor-etc
[INFO] [stdout] test tests::test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[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] [stderr]    Doc-tests bin-alarms
[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 binary-search-index
[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 iter-freq
[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 iter-to-arr
[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 iter-with-last
[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 multi-test
[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 string-builder
[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" "7a4417c39e06ea3563938fe28d024a6d5cdbc092cf874a6acefc0e87f9b6020f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a4417c39e06ea3563938fe28d024a6d5cdbc092cf874a6acefc0e87f9b6020f", kill_on_drop: false }`
[INFO] [stdout] 7a4417c39e06ea3563938fe28d024a6d5cdbc092cf874a6acefc0e87f9b6020f