[INFO] updating cached repository https://github.com/echochamber/rust_chat [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 254f76a923455cf4b4a0928e5d5eabe1ae8aeb1a [INFO] checking echochamber/rust_chat against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fechochamber%2Frust_chat" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/echochamber/rust_chat on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/echochamber/rust_chat [INFO] finished tweaking git repo https://github.com/echochamber/rust_chat [INFO] tweaked toml for git repo https://github.com/echochamber/rust_chat written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/echochamber/rust_chat already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] f751a4ba7b98b6268a1a6e450eb8ee97d061bc68d6e327f3f09cb3fe6414b58f [INFO] running `"docker" "start" "-a" "f751a4ba7b98b6268a1a6e450eb8ee97d061bc68d6e327f3f09cb3fe6414b58f"` [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking bytes v0.2.11 [INFO] [stderr] Checking slab v0.1.3 [INFO] [stderr] Checking nix v0.3.10 [INFO] [stderr] Checking time v0.1.43 [INFO] [stderr] Checking winapi v0.1.23 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking mio v0.4.4 [INFO] [stderr] Checking simple_chat v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused imports: `EventLoop`, `Token` [INFO] [stderr] --> src/chat_server/connection.rs:9:11 [INFO] [stderr] | [INFO] [stderr] 9 | use mio::{Token, EventLoop, EventSet, TryRead, TryWrite, PollOpt}; [INFO] [stderr] | ^^^^^ ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `SERVER_TOKEN` [INFO] [stderr] --> src/chat_server/mod.rs:11:20 [INFO] [stderr] | [INFO] [stderr] 11 | use self::server::{SERVER_TOKEN, ChatServer}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `EventLoop`, `Token` [INFO] [stderr] --> src/chat_server/connection.rs:9:11 [INFO] [stderr] | [INFO] [stderr] 9 | use mio::{Token, EventLoop, EventSet, TryRead, TryWrite, PollOpt}; [INFO] [stderr] | ^^^^^ ^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `SERVER_TOKEN` [INFO] [stderr] --> src/chat_server/mod.rs:11:20 [INFO] [stderr] | [INFO] [stderr] 11 | use self::server::{SERVER_TOKEN, ChatServer}; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/chat_server/connection.rs:100:21 [INFO] [stderr] | [INFO] [stderr] 100 | return match String::from_utf8(read_buf) { [INFO] [stderr] | ______________________^______- [INFO] [stderr] | | _____________________| [INFO] [stderr] | || [INFO] [stderr] 101 | || Ok(message) => { [INFO] [stderr] 102 | || return Ok(Some(message)); [INFO] [stderr] 103 | || }, [INFO] [stderr] ... || [INFO] [stderr] 106 | || } [INFO] [stderr] 107 | || } [INFO] [stderr] | || ^ [INFO] [stderr] | ||_____________________| [INFO] [stderr] | |______________________unreachable expression [INFO] [stderr] | any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/chat_server/connection.rs:100:21 [INFO] [stderr] | [INFO] [stderr] 100 | return match String::from_utf8(read_buf) { [INFO] [stderr] | ______________________^______- [INFO] [stderr] | | _____________________| [INFO] [stderr] | || [INFO] [stderr] 101 | || Ok(message) => { [INFO] [stderr] 102 | || return Ok(Some(message)); [INFO] [stderr] 103 | || }, [INFO] [stderr] ... || [INFO] [stderr] 106 | || } [INFO] [stderr] 107 | || } [INFO] [stderr] | || ^ [INFO] [stderr] | ||_____________________| [INFO] [stderr] | |______________________unreachable expression [INFO] [stderr] | any code following this `match` expression is unreachable, as all arms diverge [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: the feature `ip_addr` has been stable since 1.7.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(ip_addr)] [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0635]: unknown feature `convert` [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(convert)] [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 4 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] error: could not compile `simple_chat`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning: the feature `ip_addr` has been stable since 1.7.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/main.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(ip_addr)] [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0635]: unknown feature `convert` [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(convert)] [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error; 4 warnings emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] error: could not compile `simple_chat`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "f751a4ba7b98b6268a1a6e450eb8ee97d061bc68d6e327f3f09cb3fe6414b58f"` [INFO] running `"docker" "rm" "-f" "f751a4ba7b98b6268a1a6e450eb8ee97d061bc68d6e327f3f09cb3fe6414b58f"` [INFO] [stdout] f751a4ba7b98b6268a1a6e450eb8ee97d061bc68d6e327f3f09cb3fe6414b58f