[INFO] cloning repository https://github.com/lemonadern/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/lemonadern/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemonadern%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemonadern%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de4948d73dfba1d589c15fc9c3f537fe0c269d9e
[INFO] testing lemonadern/rust-playground against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flemonadern%2Frust-playground" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lemonadern/rust-playground on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/lemonadern/rust-playground
[INFO] finished tweaking git repo https://github.com/lemonadern/rust-playground
[INFO] tweaked toml for git repo https://github.com/lemonadern/rust-playground written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lemonadern/rust-playground 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85bfec3c6b65f06fb82d1af9ae97964925baa8b2ace223a165909c275b8ede05
[INFO] running `Command { std: "docker" "start" "-a" "85bfec3c6b65f06fb82d1af9ae97964925baa8b2ace223a165909c275b8ede05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85bfec3c6b65f06fb82d1af9ae97964925baa8b2ace223a165909c275b8ede05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85bfec3c6b65f06fb82d1af9ae97964925baa8b2ace223a165909c275b8ede05", kill_on_drop: false }`
[INFO] [stdout] 85bfec3c6b65f06fb82d1af9ae97964925baa8b2ace223a165909c275b8ede05
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0362e681b07eae505aaadb3481b41a90041f2c12cb9e3f74a1f87f1ff439aa31
[INFO] running `Command { std: "docker" "start" "-a" "0362e681b07eae505aaadb3481b41a90041f2c12cb9e3f74a1f87f1ff439aa31", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling thiserror v1.0.61
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.68
[INFO] [stderr]    Compiling thiserror-impl v1.0.61
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "0362e681b07eae505aaadb3481b41a90041f2c12cb9e3f74a1f87f1ff439aa31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0362e681b07eae505aaadb3481b41a90041f2c12cb9e3f74a1f87f1ff439aa31", kill_on_drop: false }`
[INFO] [stdout] 0362e681b07eae505aaadb3481b41a90041f2c12cb9e3f74a1f87f1ff439aa31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cea6350628dd681a2a0072e637ee472b57c4478de9f771d84309846ee95e07e
[INFO] running `Command { std: "docker" "start" "-a" "7cea6350628dd681a2a0072e637ee472b57c4478de9f771d84309846ee95e07e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stdout]  --> examples/get_panic_info.rs:8:53
[INFO] [stdout]   |
[INFO] [stdout] 8 |         println!("{:#?}", err.downcast_ref::<panic::PanicInfo>()); // None
[INFO] [stdout]   |                                                     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.25s
[INFO] running `Command { std: "docker" "inspect" "7cea6350628dd681a2a0072e637ee472b57c4478de9f771d84309846ee95e07e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cea6350628dd681a2a0072e637ee472b57c4478de9f771d84309846ee95e07e", kill_on_drop: false }`
[INFO] [stdout] 7cea6350628dd681a2a0072e637ee472b57c4478de9f771d84309846ee95e07e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 15838c5513a63d40ee31043bde79997e67c9eacc286082a91a35fa1a8801fc57
[INFO] running `Command { std: "docker" "start" "-a" "15838c5513a63d40ee31043bde79997e67c9eacc286082a91a35fa1a8801fc57", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated type alias `std::panic::PanicInfo`: use `PanicHookInfo` instead
[INFO] [stderr]  --> examples/get_panic_info.rs:8:53
[INFO] [stderr]   |
[INFO] [stderr] 8 |         println!("{:#?}", err.downcast_ref::<panic::PanicInfo>()); // None
[INFO] [stderr]   |                                                     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_playground` (example "get_panic_info") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_playground-b1089db18c9ba5bb)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_playground-d516ad650c2e86b1)
[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 tests/linked_list.rs (/opt/rustwide/target/debug/deps/linked_list-3a5046a2225e39b0)
[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 21 tests
[INFO] [stdout] test insert::example ... ok
[INFO] [stdout] test insert::insert_last ... ok
[INFO] [stdout] test construction ... ok
[INFO] [stdout] test insert::insert_out_of_bound ... ok
[INFO] [stdout] test insert::insert_first ... ok
[INFO] [stdout] test insert::insert_to_empty_list ... ok
[INFO] [stdout] test pop_back::example ... ok
[INFO] [stdout] test pop_back::multiple_elements ... ok
[INFO] [stdout] test pop_back::returns_none_if_list_is_empty ... ok
[INFO] [stdout] test pop_back::just_one_element ... ok
[INFO] [stdout] test pop_front::example ... ok
[INFO] [stdout] test pop_front::returns_none_if_list_is_empty ... ok
[INFO] [stdout] test push_back::example ... ok
[INFO] [stdout] test push_back::push_once ... ok
[INFO] [stdout] test push_back::push_thrice ... ok
[INFO] [stdout] test push_front::example ... ok
[INFO] [stdout] test push_front::push_once ... ok
[INFO] [stdout] test push_front::push_thrice ... ok
[INFO] [stdout] test push_front::push_twice ... ok
[INFO] [stdout] test push_back::push_twice ... ok
[INFO] [stdout] test insert::insert_middle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 21 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rust_playground
[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" "15838c5513a63d40ee31043bde79997e67c9eacc286082a91a35fa1a8801fc57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15838c5513a63d40ee31043bde79997e67c9eacc286082a91a35fa1a8801fc57", kill_on_drop: false }`
[INFO] [stdout] 15838c5513a63d40ee31043bde79997e67c9eacc286082a91a35fa1a8801fc57