[INFO] crate netstack 0.3.0 is already in cache
[INFO] testing netstack-0.3.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate netstack 0.3.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate netstack 0.3.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netstack 0.3.0
[INFO] finished tweaking crates.io crate netstack 0.3.0
[INFO] tweaked toml for crates.io crate netstack 0.3.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd7052df75c8c23e0b6ef0b9ab28428b1357e339a1cf8e50c3fecf8e9ef696e3
[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" "cd7052df75c8c23e0b6ef0b9ab28428b1357e339a1cf8e50c3fecf8e9ef696e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd7052df75c8c23e0b6ef0b9ab28428b1357e339a1cf8e50c3fecf8e9ef696e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd7052df75c8c23e0b6ef0b9ab28428b1357e339a1cf8e50c3fecf8e9ef696e3", kill_on_drop: false }`
[INFO] [stdout] cd7052df75c8c23e0b6ef0b9ab28428b1357e339a1cf8e50c3fecf8e9ef696e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", 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] e27ee7e94635027bfacaaf0e6459e7d29ff34ae1b931e19073a591bb95e30feb
[INFO] running `Command { std: "docker" "start" "-a" "e27ee7e94635027bfacaaf0e6459e7d29ff34ae1b931e19073a591bb95e30feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling netstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SerializationError`
[INFO] [stdout]  --> src/serialization/writer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Serializer, SerializationError};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn serialize_string(&mut self, value: &str) { unimplemented!() }
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn serialize_u8(&mut self, value: &u8) { unimplemented!() }
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn serialize_i8(&mut self, value: &i8) { unimplemented!() }
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn serialize_u16(&mut self, value: &u16) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn serialize_i16(&mut self, value: &i16) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn serialize_u32(&mut self, value: &u32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn serialize_i32(&mut self, value: &i32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn serialize_u64(&mut self, value: &u64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn serialize_i64(&mut self, value: &i64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn serialize_f32(&mut self, value: &f32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn serialize_f64(&mut self, value: &f64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_var_int`
[INFO] [stdout]   --> src/serialization/reader.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn read_var_int(&mut self) -> Result<i64, SerializationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/serialization/writer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     buffer: &'a mut [u8],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]  --> src/serialization/writer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     position: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode`
[INFO] [stdout]  --> src/serialization/zig_zag.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn encode(value: i64) -> u64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode`
[INFO] [stdout]  --> src/serialization/zig_zag.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn decode(value: u64) -> i64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
[INFO] running `Command { std: "docker" "inspect" "e27ee7e94635027bfacaaf0e6459e7d29ff34ae1b931e19073a591bb95e30feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27ee7e94635027bfacaaf0e6459e7d29ff34ae1b931e19073a591bb95e30feb", kill_on_drop: false }`
[INFO] [stdout] e27ee7e94635027bfacaaf0e6459e7d29ff34ae1b931e19073a591bb95e30feb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7fb12a345b20f6752271c17a123fabfb95e4ec190aea40ca628c818214342e1
[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" "a7fb12a345b20f6752271c17a123fabfb95e4ec190aea40ca628c818214342e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling netstack v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SerializationError`
[INFO] [stdout]  --> src/serialization/writer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Serializer, SerializationError};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn serialize_string(&mut self, value: &str) { unimplemented!() }
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn serialize_u8(&mut self, value: &u8) { unimplemented!() }
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn serialize_i8(&mut self, value: &i8) { unimplemented!() }
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn serialize_u16(&mut self, value: &u16) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn serialize_i16(&mut self, value: &i16) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn serialize_u32(&mut self, value: &u32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn serialize_i32(&mut self, value: &i32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn serialize_u64(&mut self, value: &u64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn serialize_i64(&mut self, value: &i64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn serialize_f32(&mut self, value: &f32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn serialize_f64(&mut self, value: &f64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_var_int`
[INFO] [stdout]   --> src/serialization/reader.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn read_var_int(&mut self) -> Result<i64, SerializationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/serialization/writer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     buffer: &'a mut [u8],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]  --> src/serialization/writer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     position: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `encode`
[INFO] [stdout]  --> src/serialization/zig_zag.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn encode(value: i64) -> u64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `decode`
[INFO] [stdout]  --> src/serialization/zig_zag.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn decode(value: u64) -> i64 {
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SerializationError`
[INFO] [stdout]  --> src/serialization/writer.rs:1:25
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::{Serializer, SerializationError};
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:18:36
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn serialize_string(&mut self, value: &str) { unimplemented!() }
[INFO] [stdout]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:19:32
[INFO] [stdout]    |
[INFO] [stdout] 19 |     fn serialize_u8(&mut self, value: &u8) { unimplemented!() }
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:20:32
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn serialize_i8(&mut self, value: &i8) { unimplemented!() }
[INFO] [stdout]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn serialize_u16(&mut self, value: &u16) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:22:33
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fn serialize_i16(&mut self, value: &i16) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:23:33
[INFO] [stdout]    |
[INFO] [stdout] 23 |     fn serialize_u32(&mut self, value: &u32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:24:33
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn serialize_i32(&mut self, value: &i32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:25:33
[INFO] [stdout]    |
[INFO] [stdout] 25 |     fn serialize_u64(&mut self, value: &u64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:26:33
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn serialize_i64(&mut self, value: &i64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:27:33
[INFO] [stdout]    |
[INFO] [stdout] 27 |     fn serialize_f32(&mut self, value: &f32) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/serialization/writer.rs:28:33
[INFO] [stdout]    |
[INFO] [stdout] 28 |     fn serialize_f64(&mut self, value: &f64) { unimplemented!() }
[INFO] [stdout]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_var_int`
[INFO] [stdout]   --> src/serialization/reader.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn read_var_int(&mut self) -> Result<i64, SerializationError> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `buffer`
[INFO] [stdout]  --> src/serialization/writer.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     buffer: &'a mut [u8],
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `position`
[INFO] [stdout]  --> src/serialization/writer.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     position: usize,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.69s
[INFO] running `Command { std: "docker" "inspect" "a7fb12a345b20f6752271c17a123fabfb95e4ec190aea40ca628c818214342e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7fb12a345b20f6752271c17a123fabfb95e4ec190aea40ca628c818214342e1", kill_on_drop: false }`
[INFO] [stdout] a7fb12a345b20f6752271c17a123fabfb95e4ec190aea40ca628c818214342e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bcaad49966ec41aef04ebdbbfd0e2d35eb8e3ce3a367475d00a4073b45e18bf4
[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" "bcaad49966ec41aef04ebdbbfd0e2d35eb8e3ce3a367475d00a4073b45e18bf4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `SerializationError`
[INFO] [stderr]  --> src/serialization/writer.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::{Serializer, SerializationError};
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:18:36
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn serialize_string(&mut self, value: &str) { unimplemented!() }
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:19:32
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn serialize_u8(&mut self, value: &u8) { unimplemented!() }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn serialize_i8(&mut self, value: &i8) { unimplemented!() }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:21:33
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn serialize_u16(&mut self, value: &u16) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:22:33
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn serialize_i16(&mut self, value: &i16) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:23:33
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn serialize_u32(&mut self, value: &u32) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn serialize_i32(&mut self, value: &i32) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn serialize_u64(&mut self, value: &u64) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn serialize_i64(&mut self, value: &i64) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn serialize_f32(&mut self, value: &f32) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:28:33
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn serialize_f64(&mut self, value: &f64) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_var_int`
[INFO] [stderr]   --> src/serialization/reader.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn read_var_int(&mut self) -> Result<i64, SerializationError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]  --> src/serialization/writer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     buffer: &'a mut [u8],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `position`
[INFO] [stderr]  --> src/serialization/writer.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     position: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 15 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `SerializationError`
[INFO] [stderr]  --> src/serialization/writer.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | use super::{Serializer, SerializationError};
[INFO] [stderr]   |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:18:36
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn serialize_string(&mut self, value: &str) { unimplemented!() }
[INFO] [stderr]    |                                    ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:19:32
[INFO] [stderr]    |
[INFO] [stderr] 19 |     fn serialize_u8(&mut self, value: &u8) { unimplemented!() }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn serialize_i8(&mut self, value: &i8) { unimplemented!() }
[INFO] [stderr]    |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:21:33
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn serialize_u16(&mut self, value: &u16) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:22:33
[INFO] [stderr]    |
[INFO] [stderr] 22 |     fn serialize_i16(&mut self, value: &i16) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:23:33
[INFO] [stderr]    |
[INFO] [stderr] 23 |     fn serialize_u32(&mut self, value: &u32) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:24:33
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn serialize_i32(&mut self, value: &i32) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:25:33
[INFO] [stderr]    |
[INFO] [stderr] 25 |     fn serialize_u64(&mut self, value: &u64) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:26:33
[INFO] [stderr]    |
[INFO] [stderr] 26 |     fn serialize_i64(&mut self, value: &i64) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:27:33
[INFO] [stderr]    |
[INFO] [stderr] 27 |     fn serialize_f32(&mut self, value: &f32) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/serialization/writer.rs:28:33
[INFO] [stderr]    |
[INFO] [stderr] 28 |     fn serialize_f64(&mut self, value: &f64) { unimplemented!() }
[INFO] [stderr]    |                                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_var_int`
[INFO] [stderr]   --> src/serialization/reader.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 43 |     fn read_var_int(&mut self) -> Result<i64, SerializationError> {
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `buffer`
[INFO] [stderr]  --> src/serialization/writer.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     buffer: &'a mut [u8],
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `position`
[INFO] [stderr]  --> src/serialization/writer.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     position: usize,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `encode`
[INFO] [stderr]  --> src/serialization/zig_zag.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn encode(value: i64) -> u64 {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `decode`
[INFO] [stderr]  --> src/serialization/zig_zag.rs:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub fn decode(value: u64) -> i64 {
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 17 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/netstack-6ad137ce84d8b9d4
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test packet::tests::test_set_data_in_header ... ok
[INFO] [stdout] test security::replay_buffer::tests::test_7 ... ok
[INFO] [stdout] test packet::tests::assert_header_size_matches_constants ... ok
[INFO] [stdout] test security::replay_buffer::tests::test_9 ... ok
[INFO] [stdout] test serialization::zig_zag::tests::test_decode ... ok
[INFO] [stdout] test security::replay_buffer::tests::it_forgets_things_outside_the_buffer ... ok
[INFO] [stdout] test security::replay_buffer::tests::test ... ok
[INFO] [stdout] test security::replay_buffer::tests::it_acknowledges_a_sequence_number_only_once ... ok
[INFO] [stdout] test security::replay_buffer::tests::test_2 ... ok
[INFO] [stdout] test security::replay_buffer::tests::ack_bits_for_an_empty_buffer_are_empty ... ok
[INFO] [stdout] test security::replay_buffer::tests::test_8 ... ok
[INFO] [stdout] test serialization::zig_zag::tests::test_encode ... ok
[INFO] [stdout] test packets::tests::sign_and_verify_packet ... ok
[INFO] [stdout] test packet::tests::sign_packet ... ok
[INFO] [stdout] test security::replay_buffer::tests::test_10 ... ok
[INFO] [stdout] test packets::tests::it_rejects_a_packet_signed_with_a_different_secret ... ok
[INFO] [stdout] test packets::tests::it_rejects_a_tampered_packet ... ok
[INFO] [stderr]    Doc-tests netstack
[INFO] [stdout] test serialization::zig_zag::tests::test_encode_decode ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bcaad49966ec41aef04ebdbbfd0e2d35eb8e3ce3a367475d00a4073b45e18bf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcaad49966ec41aef04ebdbbfd0e2d35eb8e3ce3a367475d00a4073b45e18bf4", kill_on_drop: false }`
[INFO] [stdout] bcaad49966ec41aef04ebdbbfd0e2d35eb8e3ce3a367475d00a4073b45e18bf4