[INFO] cloning repository https://github.com/xacrimon/conc-map-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xacrimon/conc-map-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxacrimon%2Fconc-map-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxacrimon%2Fconc-map-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0713fa3ca4a21fd7325f7ef649a48d00c41a011f
[INFO] checking xacrimon/conc-map-bench against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxacrimon%2Fconc-map-bench" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/xacrimon/conc-map-bench
[INFO] finished tweaking git repo https://github.com/xacrimon/conc-map-bench
[INFO] tweaked toml for git repo https://github.com/xacrimon/conc-map-bench written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xacrimon/conc-map-bench on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xacrimon/conc-map-bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9637ea2df59e58873ff549543990d78d18057bed629f7ba9edf719936487562c
[INFO] running `Command { std: "docker" "start" "-a" "9637ea2df59e58873ff549543990d78d18057bed629f7ba9edf719936487562c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9637ea2df59e58873ff549543990d78d18057bed629f7ba9edf719936487562c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9637ea2df59e58873ff549543990d78d18057bed629f7ba9edf719936487562c", kill_on_drop: false }`
[INFO] [stdout] 9637ea2df59e58873ff549543990d78d18057bed629f7ba9edf719936487562c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9858f33e732613258b3bd3590c84ff4d2fff0b5f110050990c891fc569d437f4
[INFO] running `Command { std: "docker" "start" "-a" "9858f33e732613258b3bd3590c84ff4d2fff0b5f110050990c891fc569d437f4", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.23
[INFO] [stderr]    Compiling cc v1.0.99
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking miniz_oxide v0.7.3
[INFO] [stderr]    Compiling yeslogic-fontconfig-sys v5.0.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking fdeflate v0.3.4
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking libloading v0.8.3
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20 (https://github.com/crossbeam-rs/crossbeam#407375cb)
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling cstr v0.2.12
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking lock_api v0.4.12
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]     Checking plotters-backend v0.3.6
[INFO] [stderr]    Compiling font-kit v0.13.2
[INFO] [stderr]     Checking flate2 v1.0.30
[INFO] [stderr]     Checking bytemuck v1.16.0
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking float-ord v0.3.2
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking seize v0.2.5
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]    Compiling pathfinder_simd v0.5.3
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chrono v0.4.38
[INFO] [stderr]     Checking png v0.17.13
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]     Checking plotters-svg v0.3.6
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18 (https://github.com/crossbeam-rs/crossbeam#407375cb)
[INFO] [stderr]     Checking parking_lot v0.4.8
[INFO] [stderr]     Checking thread_local v1.1.8
[INFO] [stderr]     Checking sharded-slab v0.1.7
[INFO] [stderr]     Checking zerocopy v0.7.34
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking sdd v0.2.0
[INFO] [stderr]     Checking hashbag v0.1.12
[INFO] [stderr]     Checking bustle v0.5.1
[INFO] [stderr]     Checking flurry v0.4.0
[INFO] [stderr]     Checking crossbeam-skiplist v0.1.3 (https://github.com/crossbeam-rs/crossbeam#407375cb)
[INFO] [stderr]     Checking chashmap v2.2.2
[INFO] [stderr]     Checking evmap v10.0.2
[INFO] [stderr]     Checking contrie v0.1.4
[INFO] [stderr]     Checking scc v2.1.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking image v0.24.9
[INFO] [stderr]     Checking pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling freetype-sys v0.20.1
[INFO] [stderr]     Checking dashmap v6.0.0-rc.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking plotters-bitmap v0.3.6
[INFO] [stderr]     Checking plotters v0.3.6
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]     Checking serde v1.0.203
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]     Checking conc-map-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `btreemap::ParkingLotRwLockBTreeMapTable`, `btreemap::StdRwLockBTreeMapTable`, `std::ParkingLotRwLockStdHashMapTable`, and `std::StdRwLockStdHashMapTable`
[INFO] [stdout]  --> src/adapters/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     btreemap::ParkingLotRwLockBTreeMapTable, btreemap::StdRwLockBTreeMapTable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     std::ParkingLotRwLockStdHashMapTable, std::StdRwLockStdHashMapTable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `btreemap::ParkingLotRwLockBTreeMapTable`, `btreemap::StdRwLockBTreeMapTable`, `std::ParkingLotRwLockStdHashMapTable`, and `std::StdRwLockStdHashMapTable`
[INFO] [stdout]  --> src/adapters/mod.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     btreemap::ParkingLotRwLockBTreeMapTable, btreemap::StdRwLockBTreeMapTable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 5 |     std::ParkingLotRwLockStdHashMapTable, std::StdRwLockStdHashMapTable,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParkingLotRwLockBTreeMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/btreemap.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ParkingLotRwLockBTreeMapTable<K>(Arc<RwLock<BTreeMap<K, Value>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StdRwLockBTreeMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/btreemap.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct StdRwLockBTreeMapTable<K>(Arc<StdRwLock<BTreeMap<K, Value>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParkingLotRwLockStdHashMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/std.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct ParkingLotRwLockStdHashMapTable<K, H>(Arc<RwLock<HashMap<K, Value, H>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StdRwLockStdHashMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/std.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct StdRwLockStdHashMapTable<K, H>(Arc<StdRwLock<HashMap<K, Value, H>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bench.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     #[structopt(long)]
[INFO] [stdout] 38 | |     pub skip: Option<Vec<String>>, // TODO: use just `Vec<String>`.
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/plot.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     dir: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/plot.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `conc-map-bench` (bin "conc-map-bench" test) due to 3 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: struct `ParkingLotRwLockBTreeMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/btreemap.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct ParkingLotRwLockBTreeMapTable<K>(Arc<RwLock<BTreeMap<K, Value>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StdRwLockBTreeMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/btreemap.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct StdRwLockBTreeMapTable<K>(Arc<StdRwLock<BTreeMap<K, Value>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParkingLotRwLockStdHashMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/std.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct ParkingLotRwLockStdHashMapTable<K, H>(Arc<RwLock<HashMap<K, Value, H>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StdRwLockStdHashMapTable` is never constructed
[INFO] [stdout]   --> src/adapters/std.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct StdRwLockStdHashMapTable<K, H>(Arc<StdRwLock<HashMap<K, Value, H>>>);
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/bench.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | /     #[structopt(long)]
[INFO] [stdout] 38 | |     pub skip: Option<Vec<String>>, // TODO: use just `Vec<String>`.
[INFO] [stdout]    | |_________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/plot.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     dir: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/plot.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `conc-map-bench` (bin "conc-map-bench") due to 3 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "9858f33e732613258b3bd3590c84ff4d2fff0b5f110050990c891fc569d437f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9858f33e732613258b3bd3590c84ff4d2fff0b5f110050990c891fc569d437f4", kill_on_drop: false }`
[INFO] [stdout] 9858f33e732613258b3bd3590c84ff4d2fff0b5f110050990c891fc569d437f4
