[INFO] cloning repository https://github.com/AntonZelenin/rust-kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AntonZelenin/rust-kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonZelenin%2Frust-kvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonZelenin%2Frust-kvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7ff4b0965e6b8e3963f84689080b5e3f2ffffb0
[INFO] testing AntonZelenin/rust-kvs against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntonZelenin%2Frust-kvs" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AntonZelenin/rust-kvs 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 git repo https://github.com/AntonZelenin/rust-kvs
[INFO] finished tweaking git repo https://github.com/AntonZelenin/rust-kvs
[INFO] tweaked toml for git repo https://github.com/AntonZelenin/rust-kvs written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/AntonZelenin/rust-kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 207d3d3bbe191032b643302946730463953fc8075a04ff973ad22cfee5c02a99
[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" "207d3d3bbe191032b643302946730463953fc8075a04ff973ad22cfee5c02a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "207d3d3bbe191032b643302946730463953fc8075a04ff973ad22cfee5c02a99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207d3d3bbe191032b643302946730463953fc8075a04ff973ad22cfee5c02a99", kill_on_drop: false }`
[INFO] [stdout] 207d3d3bbe191032b643302946730463953fc8075a04ff973ad22cfee5c02a99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] 8c5ba6331f803374016260a810e5079feb7c7ff03fa9bece28b3e9fecca726dc
[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" "8c5ba6331f803374016260a810e5079feb7c7ff03fa9bece28b3e9fecca726dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/bin/kvs.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/bin/kvs.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let value = matches.value_of("VALUE").unwrap();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/bin/kvs.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/bin/kvs.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.23s
[INFO] running `Command { std: "docker" "inspect" "8c5ba6331f803374016260a810e5079feb7c7ff03fa9bece28b3e9fecca726dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c5ba6331f803374016260a810e5079feb7c7ff03fa9bece28b3e9fecca726dc", kill_on_drop: false }`
[INFO] [stdout] 8c5ba6331f803374016260a810e5079feb7c7ff03fa9bece28b3e9fecca726dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 147a69f08d58d7021bf39b2a3eb4c01c4e63c5f93dc91055b71c1d2fec42ac66
[INFO] running `Command { std: "docker" "start" "-a" "147a69f08d58d7021bf39b2a3eb4c01c4e63c5f93dc91055b71c1d2fec42ac66", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling regex v1.1.9
[INFO] [stderr]    Compiling indexmap v1.2.0
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling normalize-line-endings v0.2.2
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.8
[INFO] [stderr]    Compiling aho-corasick v0.7.4
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]  --> src/bin/kvs.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stdout]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/bin/kvs.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         let value = matches.value_of("VALUE").unwrap();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/bin/kvs.rs:14:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/bin/kvs.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]    Compiling predicates v1.0.1
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling ron v0.5.1
[INFO] [stderr]    Compiling bson v0.14.0
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/serde.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     f.write(&serde_json::to_string(&a).unwrap().as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/serde.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     f.seek(SeekFrom::Start(0));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/serde.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     f.read_to_string(&mut b);
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "147a69f08d58d7021bf39b2a3eb4c01c4e63c5f93dc91055b71c1d2fec42ac66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "147a69f08d58d7021bf39b2a3eb4c01c4e63c5f93dc91055b71c1d2fec42ac66", kill_on_drop: false }`
[INFO] [stdout] 147a69f08d58d7021bf39b2a3eb4c01c4e63c5f93dc91055b71c1d2fec42ac66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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] bd6812a229e2def2164be551e27d0ef52bd60a0c1597beacc110dbd39e8812ea
[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" "bd6812a229e2def2164be551e27d0ef52bd60a0c1597beacc110dbd39e8812ea", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]  --> src/bin/kvs.rs:9:13
[INFO] [stderr]   |
[INFO] [stderr] 9 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stderr]   |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/bin/kvs.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |         let value = matches.value_of("VALUE").unwrap();
[INFO] [stderr]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/bin/kvs.rs:18:13
[INFO] [stderr]    |
[INFO] [stderr] 18 |         let key = matches.value_of("KEY").unwrap();
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: `kvs` (bin "kvs") generated 4 warnings
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/serde.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 |     f.write(&serde_json::to_string(&a).unwrap().as_bytes());
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/serde.rs:23:5
[INFO] [stderr]    |
[INFO] [stderr] 23 |     f.seek(SeekFrom::Start(0));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/serde.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     f.read_to_string(&mut b);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `kvs` (example "serde") generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-b7134a2baa900c1e)
[INFO] [stdout] running 13 tests
[INFO] [stdout] test get_non_existent_value ... ok
[INFO] [stdout] test get_stored_value ... ok
[INFO] [stdout] test overwrite_value ... ok
[INFO] [stdout] test remove_key ... ok
[INFO] [stdout] test cli_get ... ok
[INFO] [stdout] test cli_set ... ok
[INFO] [stdout] test cli_invalid_subcommand ... ok
[INFO] [stdout] test cli_rm ... ok
[INFO] [stdout] test cli_version ... ok
[INFO] [stdout] test cli_no_args ... ok
[INFO] [stdout] test cli_invalid_set ... ok
[INFO] [stdout] test cli_invalid_get ... ok
[INFO] [stdout] test cli_invalid_rm ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bd6812a229e2def2164be551e27d0ef52bd60a0c1597beacc110dbd39e8812ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd6812a229e2def2164be551e27d0ef52bd60a0c1597beacc110dbd39e8812ea", kill_on_drop: false }`
[INFO] [stdout] bd6812a229e2def2164be551e27d0ef52bd60a0c1597beacc110dbd39e8812ea