[INFO] fetching crate matchmaker 0.1.0...
[INFO] testing matchmaker-0.1.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate matchmaker 0.1.0 into /workspace/builds/worker-47/source
[INFO] validating manifest of crates.io crate matchmaker 0.1.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate matchmaker 0.1.0
[INFO] finished tweaking crates.io crate matchmaker 0.1.0
[INFO] tweaked toml for crates.io crate matchmaker 0.1.0 written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] crate crates.io crate matchmaker 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 761ef1e0e479cf959898f817fcada703eed2160ecf3ccb082e58c82705813259
[INFO] running `Command { std: "docker" "start" "-a" "761ef1e0e479cf959898f817fcada703eed2160ecf3ccb082e58c82705813259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "761ef1e0e479cf959898f817fcada703eed2160ecf3ccb082e58c82705813259", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "761ef1e0e479cf959898f817fcada703eed2160ecf3ccb082e58c82705813259", kill_on_drop: false }`
[INFO] [stdout] 761ef1e0e479cf959898f817fcada703eed2160ecf3ccb082e58c82705813259
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e2459093ba5506950482397c7c6af4c43b17fb9d2255e1ad82f595890abc458
[INFO] running `Command { std: "docker" "start" "-a" "8e2459093ba5506950482397c7c6af4c43b17fb9d2255e1ad82f595890abc458", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling ppv-lite86 v0.2.9
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling matchmaker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.29s
[INFO] running `Command { std: "docker" "inspect" "8e2459093ba5506950482397c7c6af4c43b17fb9d2255e1ad82f595890abc458", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2459093ba5506950482397c7c6af4c43b17fb9d2255e1ad82f595890abc458", kill_on_drop: false }`
[INFO] [stdout] 8e2459093ba5506950482397c7c6af4c43b17fb9d2255e1ad82f595890abc458
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52d5a26e0163eb7dd5a1140a0c2aaea58b6e219b1efcaf045bd2ef6a0d24cf14
[INFO] running `Command { std: "docker" "start" "-a" "52d5a26e0163eb7dd5a1140a0c2aaea58b6e219b1efcaf045bd2ef6a0d24cf14", kill_on_drop: false }`
[INFO] [stderr]    Compiling matchmaker v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.43s
[INFO] running `Command { std: "docker" "inspect" "52d5a26e0163eb7dd5a1140a0c2aaea58b6e219b1efcaf045bd2ef6a0d24cf14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d5a26e0163eb7dd5a1140a0c2aaea58b6e219b1efcaf045bd2ef6a0d24cf14", kill_on_drop: false }`
[INFO] [stdout] 52d5a26e0163eb7dd5a1140a0c2aaea58b6e219b1efcaf045bd2ef6a0d24cf14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 13fa9d6230dc9f66ccb209d9f5f125764e8d422c5f29db607cec9f1d0d19af65
[INFO] running `Command { std: "docker" "start" "-a" "13fa9d6230dc9f66ccb209d9f5f125764e8d422c5f29db607cec9f1d0d19af65", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/matchmaker-74c31485492ed54c)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test da_stb::tests::assign_random_full ... ok
[INFO] [stdout] test da_stb::tests::test_place_students ... ok
[INFO] [stdout] test da_stb::tests::test_draw_order ... ok
[INFO] [stdout] test da_stb::tests::test_truncate_categories ... ok
[INFO] [stderr]      Running tests/da_stb.rs (/opt/rustwide/target/debug/deps/da_stb-5acc0a25ae0e989c)
[INFO] [stdout] test da_stb::tests::test_assign_random_exclude ... ok
[INFO] [stdout] test da_stb::tests::test_place_students_with_exclude ... ok
[INFO] [stdout] test da_stb::tests::test_assign_random ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test test_match_students ... ok
[INFO] [stdout] test test_match_students_not_enough_places ... ok
[INFO] [stdout] test test_match_students_to_multiple_categories_not_enough_places ... ok
[INFO] [stdout] test test_match_students_to_multiple_categories ... ok
[INFO] [stdout] test test_match_students_to_multiple_categories_more_than_enough_places ... 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]    Doc-tests matchmaker
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - Category::new (line 309) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/lib.rs - Student::new (line 199) ... ok
[INFO] [stdout] test src/lib.rs - Student::new (line 216) ... ok
[INFO] [stdout] test src/lib.rs - (line 97) ... ok
[INFO] [stdout] test src/da_stb.rs - da_stb::match_students_to_multiple_categories (line 20) ... ok
[INFO] [stdout] test src/da_stb.rs - da_stb::match_students (line 157) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.78s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "13fa9d6230dc9f66ccb209d9f5f125764e8d422c5f29db607cec9f1d0d19af65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13fa9d6230dc9f66ccb209d9f5f125764e8d422c5f29db607cec9f1d0d19af65", kill_on_drop: false }`
[INFO] [stdout] 13fa9d6230dc9f66ccb209d9f5f125764e8d422c5f29db607cec9f1d0d19af65