[INFO] cloning repository https://github.com/yuki-takeichi/reveldb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuki-takeichi/reveldb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuki-takeichi%2Freveldb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuki-takeichi%2Freveldb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a15ef9ffd4d7b8b6f5dcb940a905fdf24cc7bef2
[INFO] testing yuki-takeichi/reveldb against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuki-takeichi%2Freveldb" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuki-takeichi/reveldb 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/yuki-takeichi/reveldb
[INFO] finished tweaking git repo https://github.com/yuki-takeichi/reveldb
[INFO] tweaked toml for git repo https://github.com/yuki-takeichi/reveldb written to /workspace/builds/worker-28/source/Cargo.toml
[INFO] crate git repo https://github.com/yuki-takeichi/reveldb 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] f32d179766b87d58b6a8d5579fcf475a50a7a88e7d58f9fae9dfe926b586ac2e
[INFO] running `Command { std: "docker" "start" "-a" "f32d179766b87d58b6a8d5579fcf475a50a7a88e7d58f9fae9dfe926b586ac2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f32d179766b87d58b6a8d5579fcf475a50a7a88e7d58f9fae9dfe926b586ac2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32d179766b87d58b6a8d5579fcf475a50a7a88e7d58f9fae9dfe926b586ac2e", kill_on_drop: false }`
[INFO] [stdout] f32d179766b87d58b6a8d5579fcf475a50a7a88e7d58f9fae9dfe926b586ac2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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] f2c50dcf2d13a4a53a81cc310e6ef57b361c42fba762be1f1abaef6bb4f1fdc5
[INFO] running `Command { std: "docker" "start" "-a" "f2c50dcf2d13a4a53a81cc310e6ef57b361c42fba762be1f1abaef6bb4f1fdc5", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v0.1.20
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling bitflags v0.4.0
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling typed-arena v1.3.0
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]    Compiling crc v1.7.0
[INFO] [stderr]    Compiling nix v0.7.0
[INFO] [stderr]    Compiling reveldb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0583]: file not found for module `log`
[INFO] [stdout]   --> src/lib.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | mod log;
[INFO] [stdout]    | ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: to create the module `log`, create file "src/log.rs" or "src/log/mod.rs"
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct leveldb_t {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbT`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_env_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct leveldb_env_t {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbEnvT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_cache_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct leveldb_cache_t {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbCacheT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_logger_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub struct leveldb_logger_t {}
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbLoggerT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_comparator_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct leveldb_comparator_t {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbComparatorT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_options_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 53 | pub struct leveldb_options_t<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbOptionsT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_readoptions_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:70:12
[INFO] [stdout]    |
[INFO] [stdout] 70 | pub struct leveldb_readoptions_t {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbReadoptionsT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_writeoptions_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:76:12
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub struct leveldb_writeoptions_t {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbWriteoptionsT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_writebatch_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 | pub struct leveldb_writebatch_t {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbWritebatchT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `leveldb_iterator_t` should have an upper camel case name
[INFO] [stdout]   --> src/c.rs:85:12
[INFO] [stdout]    |
[INFO] [stdout] 85 | pub struct leveldb_iterator_t {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^ help: convert the identifier to upper camel case: `LeveldbIteratorT`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::mem::swap`
[INFO] [stdout]  --> src/skiplist.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::mem::swap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::cell::RefCell`
[INFO] [stdout]  --> src/skiplist.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::cell::RefCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::CString`
[INFO] [stdout]  --> src/skiplist.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::ffi::CString;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reveldb` due to 2 previous errors; 13 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0583`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f2c50dcf2d13a4a53a81cc310e6ef57b361c42fba762be1f1abaef6bb4f1fdc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c50dcf2d13a4a53a81cc310e6ef57b361c42fba762be1f1abaef6bb4f1fdc5", kill_on_drop: false }`
[INFO] [stdout] f2c50dcf2d13a4a53a81cc310e6ef57b361c42fba762be1f1abaef6bb4f1fdc5