[INFO] fetching crate rust-rethinkdb 0.0.1...
[INFO] testing rust-rethinkdb-0.0.1 against 1.60.0 for beta-1.61-1
[INFO] extracting crate rust-rethinkdb 0.0.1 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate rust-rethinkdb 0.0.1 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-rethinkdb 0.0.1
[INFO] finished tweaking crates.io crate rust-rethinkdb 0.0.1
[INFO] tweaked toml for crates.io crate rust-rethinkdb 0.0.1 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 604bd53a638843f1c5c612b90b4ce01ce5475e5d4e66e1cedd33f8003ff4b5bc
[INFO] running `Command { std: "docker" "start" "-a" "604bd53a638843f1c5c612b90b4ce01ce5475e5d4e66e1cedd33f8003ff4b5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "604bd53a638843f1c5c612b90b4ce01ce5475e5d4e66e1cedd33f8003ff4b5bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "604bd53a638843f1c5c612b90b4ce01ce5475e5d4e66e1cedd33f8003ff4b5bc", kill_on_drop: false }`
[INFO] [stdout] 604bd53a638843f1c5c612b90b4ce01ce5475e5d4e66e1cedd33f8003ff4b5bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4488b4578601a05cd2305c6e761155f7f9b83e2b7e4539c0d6256a27e99dce6
[INFO] running `Command { std: "docker" "start" "-a" "e4488b4578601a05cd2305c6e761155f7f9b83e2b7e4539c0d6256a27e99dce6", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling rust-rethinkdb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::io::BufStream`
[INFO] [stdout]  --> src/lib/client.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufStream, Error, Write, Read, BufRead};
[INFO] [stdout]   |               ^^^^^^^^^ no `BufStream` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/lib/client.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]  --> src/lib/client.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::sync::{Arc, Mutex};
[INFO] [stdout]   |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rustc_serialize::json::Json`
[INFO] [stdout]   --> src/lib/test.rs:5:5
[INFO] [stdout]    |
[INFO] [stdout] 5  | use rustc_serialize::json::Json;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | mod test;
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::string::String`
[INFO] [stdout]   --> src/lib/test.rs:6:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | use std::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | mod test;
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeMap`
[INFO] [stdout]   --> src/lib/test.rs:7:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | use std::collections::BTreeMap;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | mod test;
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RethinkDB`
[INFO] [stdout]   --> src/lib/test.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | use RethinkDB;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | mod test;
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `api::*`
[INFO] [stdout]   --> src/lib/test.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | use api::*;
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/lib/mod.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | mod test;
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib/client.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufStream, Error, Write, Read, BufRead};
[INFO] [stdout]   |                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/lib/client.rs:7:46
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::io::{BufStream, Error, Write, Read, BufRead};
[INFO] [stdout]   |                                              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-rethinkdb` due to 2 previous errors; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "e4488b4578601a05cd2305c6e761155f7f9b83e2b7e4539c0d6256a27e99dce6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4488b4578601a05cd2305c6e761155f7f9b83e2b7e4539c0d6256a27e99dce6", kill_on_drop: false }`
[INFO] [stdout] e4488b4578601a05cd2305c6e761155f7f9b83e2b7e4539c0d6256a27e99dce6