[INFO] cloning repository https://github.com/thevaibhav-dixit/rust-learnings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thevaibhav-dixit/rust-learnings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Frust-learnings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Frust-learnings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c860ad983b8ca1478e6fcefcb935dd5f2828be87
[INFO] testing thevaibhav-dixit/rust-learnings against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthevaibhav-dixit%2Frust-learnings" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thevaibhav-dixit/rust-learnings on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thevaibhav-dixit/rust-learnings
[INFO] finished tweaking git repo https://github.com/thevaibhav-dixit/rust-learnings
[INFO] tweaked toml for git repo https://github.com/thevaibhav-dixit/rust-learnings written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thevaibhav-dixit/rust-learnings 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5d5948fb3336b265da3e656d1b961a22028b975a95a9604e9cb5dfa19d997528
[INFO] running `Command { std: "docker" "start" "-a" "5d5948fb3336b265da3e656d1b961a22028b975a95a9604e9cb5dfa19d997528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d5948fb3336b265da3e656d1b961a22028b975a95a9604e9cb5dfa19d997528", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5948fb3336b265da3e656d1b961a22028b975a95a9604e9cb5dfa19d997528", kill_on_drop: false }`
[INFO] [stdout] 5d5948fb3336b265da3e656d1b961a22028b975a95a9604e9cb5dfa19d997528
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8c9e98ee5a6f3002f793dae63c82c125ea523553b12a862075cf865151d85f2
[INFO] running `Command { std: "docker" "start" "-a" "a8c9e98ee5a6f3002f793dae63c82c125ea523553b12a862075cf865151d85f2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learnings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "a8c9e98ee5a6f3002f793dae63c82c125ea523553b12a862075cf865151d85f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8c9e98ee5a6f3002f793dae63c82c125ea523553b12a862075cf865151d85f2", kill_on_drop: false }`
[INFO] [stdout] a8c9e98ee5a6f3002f793dae63c82c125ea523553b12a862075cf865151d85f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c216befdb843d11ce8e2d6f81c79ec546a5b2e466ea07d61fcbdddbd1441c915
[INFO] running `Command { std: "docker" "start" "-a" "c216befdb843d11ce8e2d6f81c79ec546a5b2e466ea07d61fcbdddbd1441c915", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-learnings v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "c216befdb843d11ce8e2d6f81c79ec546a5b2e466ea07d61fcbdddbd1441c915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c216befdb843d11ce8e2d6f81c79ec546a5b2e466ea07d61fcbdddbd1441c915", kill_on_drop: false }`
[INFO] [stdout] c216befdb843d11ce8e2d6f81c79ec546a5b2e466ea07d61fcbdddbd1441c915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1c1c8bbe8695a2ff6760b71163e32e64cf482b02a44ee177e4b1817d93338880
[INFO] running `Command { std: "docker" "start" "-a" "1c1c8bbe8695a2ff6760b71163e32e64cf482b02a44ee177e4b1817d93338880", kill_on_drop: false }`
[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_learnings-11d9799d1a57c395)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test traits::iterators::test::iterate_over_empty ... ok
[INFO] [stdout] test traits::iterators::test::iterate_over_two_inner_elements_from_back ... ok
[INFO] [stdout] test traits::iterators::test::iterate_over_two_outer_elements ... ok
[INFO] [stdout] test traits::iterators::test::iterate_over_two_outer_elements_from_back ... ok
[INFO] [stdout] test traits::iterators::test::handles_middle_element_edge_case ... ok
[INFO] [stdout] test traits::iterators::test::iterate_over_two_inner_elements ... ok
[INFO] [stderr]    Doc-tests rust_learnings
[INFO] [stdout] test traits::iterators::test::iterate_over_single_inner_element ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "1c1c8bbe8695a2ff6760b71163e32e64cf482b02a44ee177e4b1817d93338880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c1c8bbe8695a2ff6760b71163e32e64cf482b02a44ee177e4b1817d93338880", kill_on_drop: false }`
[INFO] [stdout] 1c1c8bbe8695a2ff6760b71163e32e64cf482b02a44ee177e4b1817d93338880