[INFO] cloning repository https://github.com/mpenick/buffer-pool-manager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mpenick/buffer-pool-manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpenick%2Fbuffer-pool-manager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpenick%2Fbuffer-pool-manager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 052aaca9a5c4ef2ba255fd9c3b8ffca06bc48c83
[INFO] checking mpenick/buffer-pool-manager against a621e2b446eafb53c7a8569f225e0b8cc2429a68 for pr-162600
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmpenick%2Fbuffer-pool-manager" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mpenick/buffer-pool-manager
[INFO] finished tweaking git repo https://github.com/mpenick/buffer-pool-manager
[INFO] tweaked toml for git repo https://github.com/mpenick/buffer-pool-manager written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mpenick/buffer-pool-manager on toolchain a621e2b446eafb53c7a8569f225e0b8cc2429a68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mpenick/buffer-pool-manager 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" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `buffer_pool` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-0-tc2/source/target/.../buffer_pool
[INFO] [stderr]    |                                                  ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `buffer-pool`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 - name = "buffer_pool"
[INFO] [stderr] 24 + name = "buffer-pool"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `buffer-pool`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 ~ version = "0.1.0"
[INFO] [stderr] 26 + [[bin]]
[INFO] [stderr] 27 + name = "buffer-pool"
[INFO] [stderr] 28 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `buffer_pool` (manifest) generated 1 warning
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tinyvec v1.1.1
[INFO] [stderr]   Downloaded unicode-normalization v0.1.17
[INFO] [stderr]   Downloaded futures-macro v0.3.12
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded futures-core v0.3.12
[INFO] [stderr]   Downloaded futures-io v0.3.12
[INFO] [stderr]   Downloaded http-body v0.4.0
[INFO] [stderr]   Downloaded httpdate v0.3.2
[INFO] [stderr]   Downloaded futures-sink v0.3.12
[INFO] [stderr]   Downloaded futures-task v0.3.12
[INFO] [stderr]   Downloaded redox_syscall v0.2.5
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded pin-project-internal v1.0.5
[INFO] [stderr]   Downloaded futures-channel v0.3.12
[INFO] [stderr]   Downloaded miow v0.3.6
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded httparse v1.3.5
[INFO] [stderr]   Downloaded futures-executor v0.3.12
[INFO] [stderr]   Downloaded signal-hook-registry v1.3.0
[INFO] [stderr]   Downloaded pin-project-lite v0.2.4
[INFO] [stderr]   Downloaded lock_api v0.4.2
[INFO] [stderr]   Downloaded futures v0.3.12
[INFO] [stderr]   Downloaded tracing-core v0.1.17
[INFO] [stderr]   Downloaded pin-project v1.0.5
[INFO] [stderr]   Downloaded indexmap v1.6.1
[INFO] [stderr]   Downloaded url v2.2.1
[INFO] [stderr]   Downloaded tracing v0.1.24
[INFO] [stderr]   Downloaded tokio-util v0.6.3
[INFO] [stderr]   Downloaded mio v0.7.8
[INFO] [stderr]   Downloaded serde_json v1.0.62
[INFO] [stderr]   Downloaded http v0.2.3
[INFO] [stderr]   Downloaded futures-util v0.3.12
[INFO] [stderr]   Downloaded hyper v0.14.4
[INFO] [stderr]   Downloaded h2 v0.3.0
[INFO] [stderr]   Downloaded idna v0.2.2
[INFO] [stderr]   Downloaded libc v0.2.86
[INFO] [stderr]   Downloaded tokio v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c
[INFO] running `Command { std: "docker" "start" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `buffer_pool` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../buffer_pool
[INFO] [stderr]    |                          ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `buffer-pool`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 - name = "buffer_pool"
[INFO] [stderr] 24 + name = "buffer-pool"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `buffer-pool`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:25:19
[INFO] [stderr]    |
[INFO] [stderr] 25 ~ version = "0.1.0"
[INFO] [stderr] 26 + [[bin]]
[INFO] [stderr] 27 + name = "buffer-pool"
[INFO] [stderr] 28 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `buffer_pool` (manifest) generated 1 warning
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking futures-io v0.3.12
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking mio v0.7.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec v1.1.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]     Checking tracing v0.1.24
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking ryu v1.0.5
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking futures-executor v0.3.12
[INFO] [stderr]     Checking futures v0.3.12
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking buffer_pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/buffer_pool.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Page {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub data: [u8; PAGE_SIZE],
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_any` is never used
[INFO] [stdout]   --> src/buffer_pool.rs:39:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub trait DiskManager {
[INFO] [stdout]    |           ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 39 |     fn as_any(&self) -> &dyn Any;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/buffer_pool.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Page {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     pub data: [u8; PAGE_SIZE],
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Page` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: unused dependency `futures`
[INFO] [stderr]  --> Cargo.toml:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | futures = "0.3"
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::unused_dependencies` is set to `warn` by default
[INFO] [stderr] help: consider removing the dependency on `futures`
[INFO] [stderr] warning: unused dependency `url`
[INFO] [stderr]   --> Cargo.toml:17:15
[INFO] [stderr]    |
[INFO] [stderr] 17 | [dependencies.url]
[INFO] [stderr]    |               ^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: consider removing the dependency on `url`
[INFO] [stderr] warning: `buffer_pool` (manifest) generated 2 warnings
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.53s
[INFO] running `Command { std: "docker" "inspect" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c", kill_on_drop: false }`
[INFO] [stdout] 64b8d83981f7c31f45bbc81cb06aacc9c738b2e3d7e9e211838b626bdcd4d67c
