[INFO] fetching crate spaced-repetition-rs 0.1.0...
[INFO] testing spaced-repetition-rs-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate spaced-repetition-rs 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate spaced-repetition-rs 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spaced-repetition-rs 0.1.0
[INFO] finished tweaking crates.io crate spaced-repetition-rs 0.1.0
[INFO] tweaked toml for crates.io crate spaced-repetition-rs 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2e874fe89bf7630a7afcefdb8b68d415349539144ce8ff5792866952aab6295
[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" "e2e874fe89bf7630a7afcefdb8b68d415349539144ce8ff5792866952aab6295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2e874fe89bf7630a7afcefdb8b68d415349539144ce8ff5792866952aab6295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2e874fe89bf7630a7afcefdb8b68d415349539144ce8ff5792866952aab6295", kill_on_drop: false }`
[INFO] [stdout] e2e874fe89bf7630a7afcefdb8b68d415349539144ce8ff5792866952aab6295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 49c9b62e6ad4d59b764fc0e6d4feaaf9bf9927e31d2a3ca1f9f9ffae247424e7
[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" "49c9b62e6ad4d59b764fc0e6d4feaaf9bf9927e31d2a3ca1f9f9ffae247424e7", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling spaced-repetition-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "49c9b62e6ad4d59b764fc0e6d4feaaf9bf9927e31d2a3ca1f9f9ffae247424e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49c9b62e6ad4d59b764fc0e6d4feaaf9bf9927e31d2a3ca1f9f9ffae247424e7", kill_on_drop: false }`
[INFO] [stdout] 49c9b62e6ad4d59b764fc0e6d4feaaf9bf9927e31d2a3ca1f9f9ffae247424e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0757d5737ab19558070e9d997aab3375a04eee2843e430e6a0a1566dcb6ef834
[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" "0757d5737ab19558070e9d997aab3375a04eee2843e430e6a0a1566dcb6ef834", kill_on_drop: false }`
[INFO] [stderr]    Compiling spaced-repetition-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "0757d5737ab19558070e9d997aab3375a04eee2843e430e6a0a1566dcb6ef834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0757d5737ab19558070e9d997aab3375a04eee2843e430e6a0a1566dcb6ef834", kill_on_drop: false }`
[INFO] [stdout] 0757d5737ab19558070e9d997aab3375a04eee2843e430e6a0a1566dcb6ef834
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18896967c7b3b8c4b5bda862b58c2b1c5ad7ff71034dc948585f4ee94801cff1
[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" "18896967c7b3b8c4b5bda862b58c2b1c5ad7ff71034dc948585f4ee94801cff1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/spaced_repetition_rs-2ec70f0014b04fb3)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::test_learning_phase_easy ... ok
[INFO] [stdout] test tests::test_learning_phase_hard ... ok
[INFO] [stdout] test tests::test_reviewing_phase ... ok
[INFO] [stderr]    Doc-tests spaced-repetition-rs
[INFO] [stdout] test tests::test_learning_phase_normal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 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" "18896967c7b3b8c4b5bda862b58c2b1c5ad7ff71034dc948585f4ee94801cff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18896967c7b3b8c4b5bda862b58c2b1c5ad7ff71034dc948585f4ee94801cff1", kill_on_drop: false }`
[INFO] [stdout] 18896967c7b3b8c4b5bda862b58c2b1c5ad7ff71034dc948585f4ee94801cff1