[INFO] cloning repository https://github.com/jeffrey-xiao/kademlia-dht-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeffrey-xiao/kademlia-dht-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffrey-xiao%2Fkademlia-dht-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffrey-xiao%2Fkademlia-dht-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7b233696cecb4555f0ab47e65e0bfbc306e66336 [INFO] checking jeffrey-xiao/kademlia-dht-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffrey-xiao%2Fkademlia-dht-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jeffrey-xiao/kademlia-dht-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jeffrey-xiao/kademlia-dht-rs [INFO] finished tweaking git repo https://github.com/jeffrey-xiao/kademlia-dht-rs [INFO] tweaked toml for git repo https://github.com/jeffrey-xiao/kademlia-dht-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 73 packages [INFO] [stderr] Adding arrayvec v0.5.2 (latest: v0.7.4) [INFO] [stderr] Adding base64 v0.13.1 (latest: v0.22.0) [INFO] [stderr] Adding bincode v0.9.2 (latest: v1.3.3) [INFO] [stderr] Adding blake2b_simd v0.5.11 (latest: v1.0.2) [INFO] [stderr] Adding block-buffer v0.3.3 (latest: v0.10.4) [INFO] [stderr] Adding byte-tools v0.2.0 (latest: v0.3.1) [INFO] [stderr] Adding constant_time_eq v0.1.5 (latest: v0.3.0) [INFO] [stderr] Adding digest v0.7.6 (latest: v0.10.7) [INFO] [stderr] Adding dirs v1.0.5 (latest: v5.0.1) [INFO] [stderr] Adding generic-array v0.9.1 (latest: v1.0.0) [INFO] [stderr] Adding getrandom v0.1.16 (latest: v0.2.13) [INFO] [stderr] Adding num-bigint v0.1.44 (latest: v0.4.4) [INFO] [stderr] Adding rand v0.4.6 (latest: v0.8.5) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding redox_syscall v0.1.57 (latest: v0.5.1) [INFO] [stderr] Adding redox_users v0.3.5 (latest: v0.4.5) [INFO] [stderr] Adding rust-argon2 v0.8.3 (latest: v2.1.0) [INFO] [stderr] Adding sha3 v0.7.3 (latest: v0.10.8) [INFO] [stderr] Adding simplelog v0.5.3 (latest: v0.12.2) [INFO] [stderr] Adding term v0.5.2 (latest: v0.7.0) [INFO] [stderr] Adding time v0.1.45 (latest: v0.3.34) [INFO] [stderr] Adding wasi v0.9.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] [stderr] Adding windows-core v0.52.0 (latest: v0.55.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bincode v0.9.2 [INFO] [stderr] Downloaded generic-array v0.9.1 [INFO] [stderr] Downloaded sha3 v0.7.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8021b1eb00d87a1c353cb321f59894c7fc495038f8bd5c8340e1316e3bbd1351 [INFO] running `Command { std: "docker" "start" "-a" "8021b1eb00d87a1c353cb321f59894c7fc495038f8bd5c8340e1316e3bbd1351", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8021b1eb00d87a1c353cb321f59894c7fc495038f8bd5c8340e1316e3bbd1351", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8021b1eb00d87a1c353cb321f59894c7fc495038f8bd5c8340e1316e3bbd1351", kill_on_drop: false }` [INFO] [stdout] 8021b1eb00d87a1c353cb321f59894c7fc495038f8bd5c8340e1316e3bbd1351 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 21d004b71c42cf40e187c2009661d62b029cb3fb9ef7cf6a6c80d829c35e951a [INFO] running `Command { std: "docker" "start" "-a" "21d004b71c42cf40e187c2009661d62b029cb3fb9ef7cf6a6c80d829c35e951a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling typenum v1.17.0 [INFO] [stderr] Compiling proc-macro2 v1.0.79 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Checking iana-time-zone v0.1.60 [INFO] [stderr] Checking byte-tools v0.2.0 [INFO] [stderr] Checking arrayref v0.3.7 [INFO] [stderr] Checking keccak v0.1.5 [INFO] [stderr] Checking log v0.4.21 [INFO] [stderr] Checking rustc-serialize v0.3.25 [INFO] [stderr] Checking block-buffer v0.3.3 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking dirs v1.0.5 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.45 [INFO] [stderr] Checking term v0.5.2 [INFO] [stderr] Checking generic-array v0.9.1 [INFO] [stderr] Checking digest v0.7.6 [INFO] [stderr] Checking sha3 v0.7.3 [INFO] [stderr] Checking chrono v0.4.37 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking simplelog v0.5.3 [INFO] [stderr] Checking bincode v0.9.2 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking kademlia-dht v1.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/key.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/node/mod.rs:11:24 [INFO] [stdout] | [INFO] [stdout] 11 | use log::{debug, info, log, warn}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `bincode` is imported redundantly [INFO] [stdout] --> src/protocol.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use bincode; [INFO] [stdout] | ^^^^^^^ the item `bincode` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/protocol.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use log::{log, warn}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/storage.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | use log::{info, log}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `rand` is imported redundantly [INFO] [stdout] --> src/key.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use rand; [INFO] [stdout] | ^^^^ the item `rand` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/node/mod.rs:11:24 [INFO] [stdout] | [INFO] [stdout] 11 | use log::{debug, info, log, warn}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `bincode` is imported redundantly [INFO] [stdout] --> src/protocol.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use bincode; [INFO] [stdout] | ^^^^^^^ the item `bincode` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/protocol.rs:5:11 [INFO] [stdout] | [INFO] [stdout] 5 | use log::{log, warn}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/storage.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | use log::{info, log}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/routing.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | mem::replace(&mut self.nodes, old_bucket); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 53 | let _ = mem::replace(&mut self.nodes, old_bucket); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/routing.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | mem::replace(&mut self.nodes, old_bucket); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 53 | let _ = mem::replace(&mut self.nodes, old_bucket); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/main.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use log::{info, log}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AsMut` is imported redundantly [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::convert::AsMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsMut` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log` [INFO] [stdout] --> src/main.rs:1:17 [INFO] [stdout] | [INFO] [stdout] 1 | use log::{info, log}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `AsMut` is imported redundantly [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use std::convert::AsMut; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:134:13 [INFO] [stdout] | [INFO] [stdout] = note: the item `AsMut` is already defined here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.11s [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: num-bigint v0.1.44 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "21d004b71c42cf40e187c2009661d62b029cb3fb9ef7cf6a6c80d829c35e951a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21d004b71c42cf40e187c2009661d62b029cb3fb9ef7cf6a6c80d829c35e951a", kill_on_drop: false }` [INFO] [stdout] 21d004b71c42cf40e187c2009661d62b029cb3fb9ef7cf6a6c80d829c35e951a