[INFO] cloning repository https://github.com/Farteen/rust-crates-playing [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Farteen/rust-crates-playing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarteen%2Frust-crates-playing"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarteen%2Frust-crates-playing'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 755edf2c1128cea4cf28c55bea660c8efc714f3f [INFO] checking Farteen/rust-crates-playing against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarteen%2Frust-crates-playing" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Farteen/rust-crates-playing on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/Farteen/rust-crates-playing [INFO] finished tweaking git repo https://github.com/Farteen/rust-crates-playing [INFO] tweaked toml for git repo https://github.com/Farteen/rust-crates-playing written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/Farteen/rust-crates-playing already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d4a868615af4c984384fecf3c75b2e070491fe3630322c4e24078aef3e68728f [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "d4a868615af4c984384fecf3c75b2e070491fe3630322c4e24078aef3e68728f"` [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling cc v1.0.50 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling rustversion v1.0.2 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Checking smallvec v1.2.0 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking futures-task v0.3.4 [INFO] [stderr] Checking futures-io v0.3.4 [INFO] [stderr] Checking untrusted v0.7.0 [INFO] [stderr] Checking opaque-debug v0.2.3 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling unicode-segmentation v1.6.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Compiling os_info v1.3.3 [INFO] [stderr] Checking regex-syntax v0.6.14 [INFO] [stderr] Checking safemem v0.3.3 [INFO] [stderr] Checking md5 v0.6.1 [INFO] [stderr] Checking base64 v0.11.0 [INFO] [stderr] Checking version_check v0.9.1 [INFO] [stderr] Checking bufstream v0.1.4 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling indexmap v1.3.2 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking block-padding v0.1.5 [INFO] [stderr] Checking unicode-normalization v0.1.12 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking lru-cache v0.1.2 [INFO] [stderr] Checking aho-corasick v0.7.9 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking crypto-mac v0.7.0 [INFO] [stderr] Compiling heck v0.3.1 [INFO] [stderr] Checking hmac v0.7.1 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Checking sha2 v0.8.1 [INFO] [stderr] Checking sha-1 v0.8.2 [INFO] [stderr] Checking md-5 v0.8.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling ring v0.16.11 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking hostname v0.1.5 [INFO] [stderr] Checking socket2 v0.3.11 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking stringprep v0.1.2 [INFO] [stderr] Checking resolv-conf v0.6.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Checking backtrace v0.3.44 [INFO] [stderr] Checking tokio v0.2.12 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking pbkdf2 v0.3.0 [INFO] [stderr] Checking webpki v0.21.2 [INFO] [stderr] Checking sct v0.6.0 [INFO] [stderr] Checking rustls v0.16.0 [INFO] [stderr] Checking webpki-roots v0.18.0 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Compiling syn-mid v0.5.0 [INFO] [stderr] Compiling typed-builder v0.3.0 [INFO] [stderr] Compiling derivative v1.0.3 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling async-trait v0.1.24 [INFO] [stderr] Compiling enum-as-inner v0.3.1 [INFO] [stderr] Compiling serde_with_macros v1.1.0 [INFO] [stderr] Compiling proc-macro-error v0.4.9 [INFO] [stderr] Compiling proc-macro-error-attr v0.4.9 [INFO] [stderr] Compiling err-derive v0.2.2 [INFO] [stderr] Checking failure v0.1.6 [INFO] [stderr] Compiling futures-macro v0.3.4 [INFO] [stderr] Checking futures-util v0.3.4 [INFO] [stderr] Checking futures-executor v0.3.4 [INFO] [stderr] Checking serde v1.0.104 [INFO] [stderr] Checking futures v0.3.4 [INFO] [stderr] Checking trust-dns-proto v0.18.1 [INFO] [stderr] Checking trust-dns-resolver v0.18.1 [INFO] [stderr] Checking serde_json v1.0.48 [INFO] [stderr] Checking serde_with v1.4.0 [INFO] [stderr] Checking bson v0.14.0 [INFO] [stderr] Checking mongodb v0.9.1 [INFO] [stderr] Checking toy v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] error: this file contains an unclosed delimiter [INFO] [stderr] --> src/main.rs:39:3 [INFO] [stderr] | [INFO] [stderr] 25 | fn main() -> Result<(), Box> { [INFO] [stderr] | - unclosed delimiter [INFO] [stderr] ... [INFO] [stderr] 36 | for db_name in client.list_database_names(None)? { [INFO] [stderr] | - this delimiter might not be properly closed... [INFO] [stderr] ... [INFO] [stderr] 39 | } [INFO] [stderr] | - ^ [INFO] [stderr] | | [INFO] [stderr] | ...as it matches this but it has different indentation [INFO] [stderr] [INFO] [stderr] error: this file contains an unclosed delimiter [INFO] [stderr] --> src/main.rs:39:3 [INFO] [stderr] | [INFO] [stderr] 25 | fn main() -> Result<(), Box> { [INFO] [stderr] | - unclosed delimiter [INFO] [stderr] ... [INFO] [stderr] 36 | for db_name in client.list_database_names(None)? { [INFO] [stderr] | - this delimiter might not be properly closed... [INFO] [stderr] ... [INFO] [stderr] 39 | } [INFO] [stderr] | - ^ [INFO] [stderr] | | [INFO] [stderr] | ...as it matches this but it has different indentation [INFO] [stderr] [INFO] [stderr] warning: unused import: `Cursor` [INFO] [stderr] --> src/main.rs:1:47 [INFO] [stderr] | [INFO] [stderr] 1 | use mongodb::{Client, options::ClientOptions, Cursor}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Cursor` [INFO] [stderr] --> src/main.rs:1:47 [INFO] [stderr] | [INFO] [stderr] 1 | use mongodb::{Client, options::ClientOptions, Cursor}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | Ok(()) [INFO] [stderr] | ^^^^^^- help: try adding a semicolon: `;` [INFO] [stderr] | | [INFO] [stderr] | expected `()`, found enum `std::result::Result` [INFO] [stderr] | [INFO] [stderr] = note: expected unit type `()` [INFO] [stderr] found enum `std::result::Result<(), _>` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:38:5 [INFO] [stderr] | [INFO] [stderr] 38 | Ok(()) [INFO] [stderr] | ^^^^^^- help: try adding a semicolon: `;` [INFO] [stderr] | | [INFO] [stderr] | expected `()`, found enum `std::result::Result` [INFO] [stderr] | [INFO] [stderr] = note: expected unit type `()` [INFO] [stderr] found enum `std::result::Result<(), _>` [INFO] [stderr] [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 25 | fn main() -> Result<(), Box> { [INFO] [stderr] | -------------------------- expected `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>` because of return type [INFO] [stderr] ... [INFO] [stderr] 36 | / for db_name in client.list_database_names(None)? { [INFO] [stderr] 37 | | println!("{}", db_name); [INFO] [stderr] 38 | | Ok(()) [INFO] [stderr] 39 | | } [INFO] [stderr] | |_^ expected enum `std::result::Result`, found `()` [INFO] [stderr] | [INFO] [stderr] = note: expected enum `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>` [INFO] [stderr] found unit type `()` [INFO] [stderr] help: try using a variant of the expected enum [INFO] [stderr] | [INFO] [stderr] 36 | serde::export::Ok(for db_name in client.list_database_names(None)? { [INFO] [stderr] 37 | println!("{}", db_name); [INFO] [stderr] 38 | Ok(()) [INFO] [stderr] 39 | }) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0308`. [INFO] [stderr] error: could not compile `toy`. [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] error[E0308]: mismatched types [INFO] [stderr] --> src/main.rs:36:5 [INFO] [stderr] | [INFO] [stderr] 25 | fn main() -> Result<(), Box> { [INFO] [stderr] | -------------------------- expected `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>` because of return type [INFO] [stderr] ... [INFO] [stderr] 36 | / for db_name in client.list_database_names(None)? { [INFO] [stderr] 37 | | println!("{}", db_name); [INFO] [stderr] 38 | | Ok(()) [INFO] [stderr] 39 | | } [INFO] [stderr] | |_^ expected enum `std::result::Result`, found `()` [INFO] [stderr] | [INFO] [stderr] = note: expected enum `std::result::Result<(), std::boxed::Box<(dyn std::error::Error + 'static)>>` [INFO] [stderr] found unit type `()` [INFO] [stderr] help: try using a variant of the expected enum [INFO] [stderr] | [INFO] [stderr] 36 | serde::export::Ok(for db_name in client.list_database_names(None)? { [INFO] [stderr] 37 | println!("{}", db_name); [INFO] [stderr] 38 | Ok(()) [INFO] [stderr] 39 | }) [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors; 1 warning emitted [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0308`. [INFO] [stderr] error: could not compile `toy`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "d4a868615af4c984384fecf3c75b2e070491fe3630322c4e24078aef3e68728f"` [INFO] running `"docker" "rm" "-f" "d4a868615af4c984384fecf3c75b2e070491fe3630322c4e24078aef3e68728f"` [INFO] [stdout] d4a868615af4c984384fecf3c75b2e070491fe3630322c4e24078aef3e68728f