[INFO] cloning repository https://github.com/syrvyss/lib_lang [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/syrvyss/lib_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyrvyss%2Flib_lang", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyrvyss%2Flib_lang'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 783621ff46ba7b2858e95a6e2b020840df23abd4 [INFO] checking syrvyss/lib_lang against master#aa067fb984d36462548bb785da221bfaf38253f0 for pr-122470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyrvyss%2Flib_lang" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. 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[INFO] validating manifest of git repo https://github.com/syrvyss/lib_lang on toolchain aa067fb984d36462548bb785da221bfaf38253f0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/syrvyss/lib_lang [INFO] finished tweaking git repo https://github.com/syrvyss/lib_lang [INFO] tweaked toml for git repo https://github.com/syrvyss/lib_lang written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/syrvyss/lib_lang already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking syrvyss/lib_lang against try#707d6562f55b55a7aab4ab3a904997116b358314 for pr-122470 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyrvyss%2Flib_lang" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. 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[INFO] validating manifest of git repo https://github.com/syrvyss/lib_lang on toolchain 707d6562f55b55a7aab4ab3a904997116b358314 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+707d6562f55b55a7aab4ab3a904997116b358314" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/syrvyss/lib_lang [INFO] finished tweaking git repo https://github.com/syrvyss/lib_lang [INFO] tweaked toml for git repo https://github.com/syrvyss/lib_lang written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/syrvyss/lib_lang already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+707d6562f55b55a7aab4ab3a904997116b358314" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+707d6562f55b55a7aab4ab3a904997116b358314" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec1e4be939c61dbb84d7bdbea3845c4a32dff219427cdf2a823aecbe058dc1de [INFO] running `Command { std: "docker" "start" "-a" "ec1e4be939c61dbb84d7bdbea3845c4a32dff219427cdf2a823aecbe058dc1de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec1e4be939c61dbb84d7bdbea3845c4a32dff219427cdf2a823aecbe058dc1de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec1e4be939c61dbb84d7bdbea3845c4a32dff219427cdf2a823aecbe058dc1de", kill_on_drop: false }` [INFO] [stdout] ec1e4be939c61dbb84d7bdbea3845c4a32dff219427cdf2a823aecbe058dc1de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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" "+707d6562f55b55a7aab4ab3a904997116b358314" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9d6d2f5d698298b1700309f7b231a26ed59e6f8e7aa6483475bf45d2787e4705 [INFO] running `Command { std: "docker" "start" "-a" "9d6d2f5d698298b1700309f7b231a26ed59e6f8e7aa6483475bf45d2787e4705", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.39 [INFO] [stderr] Compiling unicode-ident v1.0.0 [INFO] [stderr] Compiling version_check v0.9.4 [INFO] [stderr] Compiling syn v1.0.95 [INFO] [stderr] Compiling ucd-trie v0.1.3 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Compiling pest v2.1.3 [INFO] [stderr] Checking hashbrown v0.11.2 [INFO] [stderr] Checking os_str_bytes v6.1.0 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Checking clap_lex v0.2.0 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Compiling pest_meta v2.1.3 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Compiling pest_generator v2.1.3 [INFO] [stderr] Compiling clap_derive v3.1.18 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking clap v3.1.18 [INFO] [stderr] Checking lib_lang v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/main.rs:117:37 [INFO] [stdout] | [INFO] [stdout] 117 | ... _ => unreachable!() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/main.rs:126:33 [INFO] [stdout] | [INFO] [stdout] 126 | let mut name = String::new(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/main.rs:117:37 [INFO] [stdout] | [INFO] [stdout] 117 | ... _ => unreachable!() [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `name` [INFO] [stdout] --> src/main.rs:126:33 [INFO] [stdout] | [INFO] [stdout] 126 | let mut name = String::new(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_name` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:126:29 [INFO] [stdout] | [INFO] [stdout] 126 | let mut name = String::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | struct Library { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 30 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Library` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | &self.users.iter().for_each(|x| println!("{:?}", x.name)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 38 | let _ = &self.users.iter().for_each(|x| println!("{:?}", x.name)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:126:29 [INFO] [stdout] | [INFO] [stdout] 126 | let mut name = String::new(); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:30:5 [INFO] [stdout] | [INFO] [stdout] 29 | struct Library { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] 30 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Library` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/main.rs:38:13 [INFO] [stdout] | [INFO] [stdout] 38 | &self.users.iter().for_each(|x| println!("{:?}", x.name)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 38 | let _ = &self.users.iter().for_each(|x| println!("{:?}", x.name)); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.66s [INFO] running `Command { std: "docker" "inspect" "9d6d2f5d698298b1700309f7b231a26ed59e6f8e7aa6483475bf45d2787e4705", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d6d2f5d698298b1700309f7b231a26ed59e6f8e7aa6483475bf45d2787e4705", kill_on_drop: false }` [INFO] [stdout] 9d6d2f5d698298b1700309f7b231a26ed59e6f8e7aa6483475bf45d2787e4705