[INFO] cloning repository https://github.com/hjr3/building-better-interfaces
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hjr3/building-better-interfaces" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjr3%2Fbuilding-better-interfaces", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjr3%2Fbuilding-better-interfaces'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d30913d5f3230f435fed75e13571d4164d6b5d3
[INFO] testing hjr3/building-better-interfaces against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjr3%2Fbuilding-better-interfaces" "/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/hjr3/building-better-interfaces on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hjr3/building-better-interfaces
[INFO] finished tweaking git repo https://github.com/hjr3/building-better-interfaces
[INFO] tweaked toml for git repo https://github.com/hjr3/building-better-interfaces written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/hjr3/building-better-interfaces already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c96747015c5ea2b2a6eba2ccb3babfd6fa24d911d99adfedb788e6c91396e12f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c96747015c5ea2b2a6eba2ccb3babfd6fa24d911d99adfedb788e6c91396e12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c96747015c5ea2b2a6eba2ccb3babfd6fa24d911d99adfedb788e6c91396e12f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c96747015c5ea2b2a6eba2ccb3babfd6fa24d911d99adfedb788e6c91396e12f", kill_on_drop: false }`
[INFO] [stdout] c96747015c5ea2b2a6eba2ccb3babfd6fa24d911d99adfedb788e6c91396e12f
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] 18dfd3de42550d8957a265d1a1f54127c764bb3188bdf4717ea06ccf6552152a
[INFO] running `Command { std: "docker" "start" "-a" "18dfd3de42550d8957a265d1a1f54127c764bb3188bdf4717ea06ccf6552152a", kill_on_drop: false }`
[INFO] [stderr]    Compiling building-better-interfaces v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "18dfd3de42550d8957a265d1a1f54127c764bb3188bdf4717ea06ccf6552152a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18dfd3de42550d8957a265d1a1f54127c764bb3188bdf4717ea06ccf6552152a", kill_on_drop: false }`
[INFO] [stdout] 18dfd3de42550d8957a265d1a1f54127c764bb3188bdf4717ea06ccf6552152a
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7aaff69bc4d47451ee66053fe6fece1248ad391012a5ff02a3e17c0c8791e932
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7aaff69bc4d47451ee66053fe6fece1248ad391012a5ff02a3e17c0c8791e932", kill_on_drop: false }`
[INFO] [stderr]    Compiling building-better-interfaces v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "7aaff69bc4d47451ee66053fe6fece1248ad391012a5ff02a3e17c0c8791e932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7aaff69bc4d47451ee66053fe6fece1248ad391012a5ff02a3e17c0c8791e932", kill_on_drop: false }`
[INFO] [stdout] 7aaff69bc4d47451ee66053fe6fece1248ad391012a5ff02a3e17c0c8791e932
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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] 1b5ddd283f15fc4a0dcddd68ae217f643120a9df54477e8b88cbb43d646b192a
[INFO] running `Command { std: "docker" "start" "-a" "1b5ddd283f15fc4a0dcddd68ae217f643120a9df54477e8b88cbb43d646b192a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/building_better_interfaces-df977e381990f397
[INFO] [stdout] 
[INFO] [stdout] running 41 tests
[INFO] [stdout] test courses::tests::test_courses_add_course ... ok
[INFO] [stdout] test name::tests::string_into_name_string ... ok
[INFO] [stdout] test name::tests::test_name_str_as_mut ... ok
[INFO] [stdout] test name::tests::test_name_str_given ... ok
[INFO] [stdout] test name::tests::test_name_str_into ... ok
[INFO] [stdout] test classroom::test::test_classroom_add_student ... ok
[INFO] [stdout] test name::tests::test_name_str_to_name_string ... ok
[INFO] [stdout] test classroom::test::test_classroom_add_student_fails ... ok
[INFO] [stdout] test name::tests::test_name_str_to_string ... ok
[INFO] [stdout] test name::tests::test_name_str_family ... ok
[INFO] [stdout] test name::tests::test_name_str_into_name_string ... ok
[INFO] [stdout] test name::tests::test_name_str_to_uppercase ... ok
[INFO] [stdout] test name::tests::test_name_str_try_into_err ... ok
[INFO] [stdout] test name::tests::test_name_str_to_owned ... ok
[INFO] [stdout] test name::tests::test_name_string_as_mut ... ok
[INFO] [stdout] test name::tests::test_name_str_try_into_ok ... ok
[INFO] [stdout] test name::tests::test_name_string_as_mut_name_str ... ok
[INFO] [stdout] test name::tests::test_name_string_as_name_str ... ok
[INFO] [stdout] test name::tests::test_name_string_as_mut_str ... ok
[INFO] [stdout] test name::tests::test_name_string_as_ref ... ok
[INFO] [stdout] test name::tests::test_name_string_borrow ... ok
[INFO] [stdout] test name::tests::test_name_string_borrow_mut ... ok
[INFO] [stdout] test name::tests::test_name_string_deref ... ok
[INFO] [stdout] test name::tests::test_name_string_deref_mut ... ok
[INFO] [stdout] test name::tests::test_name_string_from_name_str ... ok
[INFO] [stdout] test name::tests::test_name_string_from_str ... ok
[INFO] [stdout] test name::tests::test_name_string_from_string ... ok
[INFO] [stdout] test name::tests::test_name_string_into ... ok
[INFO] [stdout] test name::tests::test_name_string_into_string ... ok
[INFO] [stdout] test name::tests::test_name_str_as_ref ... ok
[INFO] [stdout] test student::tests::test_student_state_changes ... ok
[INFO] [stdout] test student::tests::test_in_class_deref_name_str ... ok
[INFO] [stdout] test student::tests::test_student_deref_name_str ... ok
[INFO] [stdout] test name::tests::test_name_try_from_ok ... ok
[INFO] [stdout] test name::tests::test_name_string_push ... ok
[INFO] [stdout] test roster::tests::test_roster_add_name ... ok
[INFO] [stdout] test name::tests::test_name_string_uppercase ... ok
[INFO] [stdout] test name::tests::test_name_try_from_err ... ok
[INFO] [stdout] test person::tests::test_person_new ... ok
[INFO] [stdout] test name::tests::test_name_cow ... ok
[INFO] [stdout] test name::tests::test_name_string_as_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 41 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests building-better-interfaces
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1b5ddd283f15fc4a0dcddd68ae217f643120a9df54477e8b88cbb43d646b192a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b5ddd283f15fc4a0dcddd68ae217f643120a9df54477e8b88cbb43d646b192a", kill_on_drop: false }`
[INFO] [stdout] 1b5ddd283f15fc4a0dcddd68ae217f643120a9df54477e8b88cbb43d646b192a