[INFO] cloning repository https://github.com/Dieff/not-a-backdoor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dieff/not-a-backdoor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDieff%2Fnot-a-backdoor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDieff%2Fnot-a-backdoor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de6f98867b194620ee820ba854b75c09361192ea
[INFO] checking Dieff/not-a-backdoor against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDieff%2Fnot-a-backdoor" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Dieff/not-a-backdoor on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Dieff/not-a-backdoor
[INFO] finished tweaking git repo https://github.com/Dieff/not-a-backdoor
[INFO] tweaked toml for git repo https://github.com/Dieff/not-a-backdoor written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Dieff/not-a-backdoor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded version_check v0.1.4
[INFO] [stderr]   Downloaded serde_json v1.0.26
[INFO] [stderr]   Downloaded serde_derive v1.0.71
[INFO] [stderr]   Downloaded quote v0.6.6
[INFO] [stderr]   Downloaded itoa v0.4.2
[INFO] [stderr]   Downloaded time v0.1.40
[INFO] [stderr]   Downloaded md5 v0.3.7
[INFO] [stderr]   Downloaded serde v1.0.71
[INFO] [stderr]   Downloaded mio v0.6.15
[INFO] [stderr]   Downloaded termcolor v0.3.6
[INFO] [stderr]   Downloaded stderrlog v0.4.1
[INFO] [stderr]   Downloaded sys-info v0.5.6
[INFO] [stderr]   Downloaded wincolor v0.1.6
[INFO] [stderr]   Downloaded syn v0.14.8
[INFO] [stderr]   Downloaded cc v1.0.18
[INFO] [stderr]   Downloaded lazy_static v1.1.0
[INFO] [stderr]   Downloaded proc-macro2 v0.4.12
[INFO] [stderr]   Downloaded ryu v0.2.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91b2af04ac707dd696327e51cc3337db73ece514c24ce0a23010bb8e71a4d67d
[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" "91b2af04ac707dd696327e51cc3337db73ece514c24ce0a23010bb8e71a4d67d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91b2af04ac707dd696327e51cc3337db73ece514c24ce0a23010bb8e71a4d67d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91b2af04ac707dd696327e51cc3337db73ece514c24ce0a23010bb8e71a4d67d", kill_on_drop: false }`
[INFO] [stdout] 91b2af04ac707dd696327e51cc3337db73ece514c24ce0a23010bb8e71a4d67d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f61aab81219e4d575acc8b80282335398a06efae1729c604212880b250df60a
[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" "6f61aab81219e4d575acc8b80282335398a06efae1729c604212880b250df60a", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling ryu v0.2.3
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]     Checking termcolor v0.3.6
[INFO] [stderr]     Checking itoa v0.4.2
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking md5 v0.3.7
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling sys-info v0.5.6
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking stderrlog v0.4.1
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]     Checking serde_json v1.0.26
[INFO] [stderr]     Checking not-a-backdoor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/lib_client/senders/udp.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::{sleep, spawn};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/lib_server/eventloop.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib_server/eventloop.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |   pub reply: Box<Fn(net_messages::ServerToClient) + Send>,
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(net_messages::ServerToClient) + Send`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fmt::Display`
[INFO] [stdout]  --> src/lib_server/eventloop.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Display;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/lib_server/eventloop.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 |   pub reply: Box<Fn(net_messages::ServerToClient) + Send>,
[INFO] [stdout]   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(net_messages::ServerToClient) + Send`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_input`
[INFO] [stdout]   --> src/net_messages.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |   pub fn from_input(input: String, id: usize) -> Command {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/net_messages.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub fn from_str(string: String) -> Result<ClientToServer, serde_json::Error> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_cmds`
[INFO] [stdout]   --> src/net_messages.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 |   pub fn from_cmds(commands: Vec<Command>) -> ServerToClient {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sleep`
[INFO] [stdout]  --> src/lib_client/senders/udp.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::thread::{sleep, spawn};
[INFO] [stdout]   |                   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/lib_server/udp.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 Err(err) => {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `err`
[INFO] [stdout]   --> src/lib_server/udp.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |                 Err(err) => {
[INFO] [stdout]    |                     ^^^ help: if this is intentional, prefix it with an underscore: `_err`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sent`
[INFO] [stdout]  --> src/lib_server/client_tracker.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   sent: i64,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `recieved`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   recieved: i64,
[INFO] [stdout]    |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ip`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |   ip: IpAddr,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `os`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   os: String,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_elapsed`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 |   fn get_elapsed(&self) -> Duration {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_output`
[INFO] [stdout]   --> src/net_messages.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   pub fn add_output(&mut self, output: String) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_cmds`
[INFO] [stdout]   --> src/net_messages.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |   pub fn from_cmds(id: String, commands: Vec<Command>) -> ClientToServer {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/net_messages.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |   pub fn from_str(string: String) -> Result<ServerToClient, serde_json::Error> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `sent`
[INFO] [stdout]  --> src/lib_server/client_tracker.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   sent: i64,
[INFO] [stdout]   |   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `recieved`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   recieved: i64,
[INFO] [stdout]    |   ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `ip`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:32:3
[INFO] [stdout]    |
[INFO] [stdout] 32 |   ip: IpAddr,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `os`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:33:3
[INFO] [stdout]    |
[INFO] [stdout] 33 |   os: String,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_elapsed`
[INFO] [stdout]   --> src/lib_server/client_tracker.rs:51:6
[INFO] [stdout]    |
[INFO] [stdout] 51 |   fn get_elapsed(&self) -> Duration {
[INFO] [stdout]    |      ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_output`
[INFO] [stdout]   --> src/net_messages.rs:19:10
[INFO] [stdout]    |
[INFO] [stdout] 19 |   pub fn add_output(&mut self, output: String) {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_cmds`
[INFO] [stdout]   --> src/net_messages.rs:34:10
[INFO] [stdout]    |
[INFO] [stdout] 34 |   pub fn from_cmds(id: String, commands: Vec<Command>) -> ClientToServer {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/net_messages.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |   pub fn from_str(string: String) -> Result<ServerToClient, serde_json::Error> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_input`
[INFO] [stdout]   --> src/net_messages.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 |   pub fn from_input(input: String, id: usize) -> Command {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_str`
[INFO] [stdout]   --> src/net_messages.rs:31:10
[INFO] [stdout]    |
[INFO] [stdout] 31 |   pub fn from_str(string: String) -> Result<ClientToServer, serde_json::Error> {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `from_cmds`
[INFO] [stdout]   --> src/net_messages.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 |   pub fn from_cmds(commands: Vec<Command>) -> ServerToClient {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.49s
[INFO] running `Command { std: "docker" "inspect" "6f61aab81219e4d575acc8b80282335398a06efae1729c604212880b250df60a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f61aab81219e4d575acc8b80282335398a06efae1729c604212880b250df60a", kill_on_drop: false }`
[INFO] [stdout] 6f61aab81219e4d575acc8b80282335398a06efae1729c604212880b250df60a