[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 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhjr3%2Fbuilding-better-interfaces" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hjr3/building-better-interfaces on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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-14/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf4a7a44950774d2ef1b5245a726bc3ce4d57700824af6d9653a008309b5ccbb
[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" "bf4a7a44950774d2ef1b5245a726bc3ce4d57700824af6d9653a008309b5ccbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf4a7a44950774d2ef1b5245a726bc3ce4d57700824af6d9653a008309b5ccbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf4a7a44950774d2ef1b5245a726bc3ce4d57700824af6d9653a008309b5ccbb", kill_on_drop: false }`
[INFO] [stdout] bf4a7a44950774d2ef1b5245a726bc3ce4d57700824af6d9653a008309b5ccbb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 0548f11a5743668799aaeb74327f7e5858fc83bc579957859b22e5049e03d19c
[INFO] running `Command { std: "docker" "start" "-a" "0548f11a5743668799aaeb74327f7e5858fc83bc579957859b22e5049e03d19c", 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 0.80s
[INFO] running `Command { std: "docker" "inspect" "0548f11a5743668799aaeb74327f7e5858fc83bc579957859b22e5049e03d19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0548f11a5743668799aaeb74327f7e5858fc83bc579957859b22e5049e03d19c", kill_on_drop: false }`
[INFO] [stdout] 0548f11a5743668799aaeb74327f7e5858fc83bc579957859b22e5049e03d19c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 2671936755d1ea235a6068aebea0f10501c1493d2f82727d9a3b2576e6d3e83d
[INFO] running `Command { std: "docker" "start" "-a" "2671936755d1ea235a6068aebea0f10501c1493d2f82727d9a3b2576e6d3e83d", 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 1.88s
[INFO] running `Command { std: "docker" "inspect" "2671936755d1ea235a6068aebea0f10501c1493d2f82727d9a3b2576e6d3e83d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2671936755d1ea235a6068aebea0f10501c1493d2f82727d9a3b2576e6d3e83d", kill_on_drop: false }`
[INFO] [stdout] 2671936755d1ea235a6068aebea0f10501c1493d2f82727d9a3b2576e6d3e83d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] ee287c8d0c553cbf9e204a540fa3bb64e98b6ed789d8341b4a5ca6b7e664396d
[INFO] running `Command { std: "docker" "start" "-a" "ee287c8d0c553cbf9e204a540fa3bb64e98b6ed789d8341b4a5ca6b7e664396d", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 41 tests
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/building_better_interfaces-cd1033169d2522f1
[INFO] [stdout] test classroom::test::test_classroom_add_student_fails ... ok
[INFO] [stdout] test classroom::test::test_classroom_add_student ... ok
[INFO] [stdout] test name::tests::test_name_cow ... ok
[INFO] [stdout] test name::tests::test_name_str_as_mut ... ok
[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_ref ... ok
[INFO] [stdout] test name::tests::test_name_str_to_string ... ok
[INFO] [stdout] test name::tests::test_name_str_to_uppercase ... ok
[INFO] [stdout] test name::tests::test_name_string_as_mut ... ok
[INFO] [stdout] test name::tests::test_name_string_as_mut_name_str ... ok
[INFO] [stdout] test name::tests::test_name_str_try_into_err ... ok
[INFO] [stdout] test name::tests::test_name_string_as_mut_str ... ok
[INFO] [stdout] test name::tests::test_name_str_to_name_string ... ok
[INFO] [stdout] test name::tests::test_name_string_as_name_str ... ok
[INFO] [stdout] test name::tests::test_name_string_as_ref ... ok
[INFO] [stdout] test name::tests::test_name_string_as_str ... ok
[INFO] [stdout] test name::tests::test_name_str_to_owned ... ok
[INFO] [stdout] test name::tests::test_name_str_into_name_string ... ok
[INFO] [stdout] test name::tests::test_name_str_into ... ok
[INFO] [stdout] test name::tests::test_name_str_given ... ok
[INFO] [stdout] test name::tests::test_name_string_deref ... ok
[INFO] [stdout] test name::tests::test_name_string_borrow ... ok
[INFO] [stdout] test name::tests::test_name_str_try_into_ok ... ok
[INFO] [stdout] test name::tests::test_name_string_uppercase ... ok
[INFO] [stdout] test name::tests::test_name_string_from_name_str ... ok
[INFO] [stdout] test name::tests::test_name_string_borrow_mut ... 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_string_push ... ok
[INFO] [stdout] test name::tests::test_name_string_deref_mut ... ok
[INFO] [stdout] test name::tests::test_name_string_from_str ... 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_try_from_ok ... ok
[INFO] [stdout] test name::tests::test_name_str_family ... ok
[INFO] [stdout] test student::tests::test_in_class_deref_name_str ... ok
[INFO] [stdout] test roster::tests::test_roster_add_name ... ok
[INFO] [stdout] test student::tests::test_student_deref_name_str ... ok
[INFO] [stdout] test student::tests::test_student_state_changes ... 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" "ee287c8d0c553cbf9e204a540fa3bb64e98b6ed789d8341b4a5ca6b7e664396d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee287c8d0c553cbf9e204a540fa3bb64e98b6ed789d8341b4a5ca6b7e664396d", kill_on_drop: false }`
[INFO] [stdout] ee287c8d0c553cbf9e204a540fa3bb64e98b6ed789d8341b4a5ca6b7e664396d