[INFO] cloning repository https://github.com/bodagovsky/rusty_parking_lot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bodagovsky/rusty_parking_lot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2Frusty_parking_lot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2Frusty_parking_lot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 25a3063cf279a3c71831d2a5d6532e857ac8efac
[INFO] testing bodagovsky/rusty_parking_lot against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbodagovsky%2Frusty_parking_lot" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bodagovsky/rusty_parking_lot on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bodagovsky/rusty_parking_lot
[INFO] finished tweaking git repo https://github.com/bodagovsky/rusty_parking_lot
[INFO] tweaked toml for git repo https://github.com/bodagovsky/rusty_parking_lot written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/bodagovsky/rusty_parking_lot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ead142675f5123a8ba21ae37ca286a7a8abe50d1f68e5acfc7fdf0c1a2f76025
[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" "ead142675f5123a8ba21ae37ca286a7a8abe50d1f68e5acfc7fdf0c1a2f76025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ead142675f5123a8ba21ae37ca286a7a8abe50d1f68e5acfc7fdf0c1a2f76025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ead142675f5123a8ba21ae37ca286a7a8abe50d1f68e5acfc7fdf0c1a2f76025", kill_on_drop: false }`
[INFO] [stdout] ead142675f5123a8ba21ae37ca286a7a8abe50d1f68e5acfc7fdf0c1a2f76025
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06797d1b0b2191d19ad1b88001e462b1fe0aafe732911ddfedf486a4b4939b37
[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" "06797d1b0b2191d19ad1b88001e462b1fe0aafe732911ddfedf486a4b4939b37", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_parking_lot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/logic.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                          {return String::from("no found slots")}}
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/logic.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         {return String::from(format!("sorry, no plates with color {}", color))}}
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/model.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for (key, val) in self.slots.iter() {
[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: value assigned to `cap` is never read
[INFO] [stdout]   --> src/logic.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     let mut cap:i32 = 0;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
[INFO] running `Command { std: "docker" "inspect" "06797d1b0b2191d19ad1b88001e462b1fe0aafe732911ddfedf486a4b4939b37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06797d1b0b2191d19ad1b88001e462b1fe0aafe732911ddfedf486a4b4939b37", kill_on_drop: false }`
[INFO] [stdout] 06797d1b0b2191d19ad1b88001e462b1fe0aafe732911ddfedf486a4b4939b37
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70825c43a3802b8f1a0c5bb19aea0af5b26201127c0c6ab7acfaf776ec4e693d
[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" "70825c43a3802b8f1a0c5bb19aea0af5b26201127c0c6ab7acfaf776ec4e693d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_parking_lot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/logic.rs:77:26
[INFO] [stdout]    |
[INFO] [stdout] 77 |                          {return String::from("no found slots")}}
[INFO] [stdout]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]   --> src/logic.rs:90:25
[INFO] [stdout]    |
[INFO] [stdout] 90 |                         {return String::from(format!("sorry, no plates with color {}", color))}}
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/model.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for (key, val) in self.slots.iter() {
[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: value assigned to `cap` is never read
[INFO] [stdout]   --> src/logic.rs:36:25
[INFO] [stdout]    |
[INFO] [stdout] 36 |                     let mut cap:i32 = 0;
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |         let mut park = ParkingLot{
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:54:13
[INFO] [stdout]    |
[INFO] [stdout] 54 |         let mut park = ParkingLot{
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |         let mut park = ParkingLot{
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tests.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut park = ParkingLot{
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "70825c43a3802b8f1a0c5bb19aea0af5b26201127c0c6ab7acfaf776ec4e693d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70825c43a3802b8f1a0c5bb19aea0af5b26201127c0c6ab7acfaf776ec4e693d", kill_on_drop: false }`
[INFO] [stdout] 70825c43a3802b8f1a0c5bb19aea0af5b26201127c0c6ab7acfaf776ec4e693d
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "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] 716c350c9f283291a0af320759ef92ad18bcd18b0f13be94c9a597d7bff4c4f4
[INFO] running `Command { std: "docker" "start" "-a" "716c350c9f283291a0af320759ef92ad18bcd18b0f13be94c9a597d7bff4c4f4", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/logic.rs:77:26
[INFO] [stderr]    |
[INFO] [stderr] 77 |                          {return String::from("no found slots")}}
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/logic.rs:90:25
[INFO] [stderr]    |
[INFO] [stderr] 90 |                         {return String::from(format!("sorry, no plates with color {}", color))}}
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/model.rs:58:14
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for (key, val) in self.slots.iter() {
[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: value assigned to `cap` is never read
[INFO] [stderr]   --> src/logic.rs:36:25
[INFO] [stderr]    |
[INFO] [stderr] 36 |                     let mut cap:i32 = 0;
[INFO] [stderr]    |                         ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:36:13
[INFO] [stderr]    |
[INFO] [stderr] 36 |         let mut park = ParkingLot{
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         let mut park = ParkingLot{
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |         let mut park = ParkingLot{
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/tests.rs:103:13
[INFO] [stderr]     |
[INFO] [stderr] 103 |         let mut park = ParkingLot{
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_parking_lot-7df0fd0a66ae85e0
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::tests::test_all_slots ... ok
[INFO] [stdout] test tests::tests::test_allocate_slot ... ok
[INFO] [stdout] test tests::tests::test_get_slots_by_color ... ok
[INFO] [stdout] test tests::tests::test_plates_by_color ... ok
[INFO] [stdout] test tests::tests::test_slot_by_plate ... ok
[INFO] [stdout] test tests::tests::test_leave_slot ... ok
[INFO] [stdout] test tests::tests::test_first_available ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "716c350c9f283291a0af320759ef92ad18bcd18b0f13be94c9a597d7bff4c4f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "716c350c9f283291a0af320759ef92ad18bcd18b0f13be94c9a597d7bff4c4f4", kill_on_drop: false }`
[INFO] [stdout] 716c350c9f283291a0af320759ef92ad18bcd18b0f13be94c9a597d7bff4c4f4
