[INFO] updating cached repository Shacham6/serde_training_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Shacham6/serde_training_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Shacham6/serde_training_rust" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Shacham6/serde_training_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Shacham6/serde_training_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Shacham6/serde_training_rust" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Shacham6/serde_training_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Shacham6/serde_training_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d65da5df5decc3c0741b1d6c78a1b2cbfe74bd0d [INFO] sha for GitHub repo Shacham6/serde_training_rust: d65da5df5decc3c0741b1d6c78a1b2cbfe74bd0d [INFO] validating manifest of Shacham6/serde_training_rust on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of Shacham6/serde_training_rust on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing Shacham6/serde_training_rust [INFO] finished frobbing Shacham6/serde_training_rust [INFO] frobbed toml for Shacham6/serde_training_rust written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/Shacham6/serde_training_rust/Cargo.toml [INFO] started frobbing Shacham6/serde_training_rust [INFO] finished frobbing Shacham6/serde_training_rust [INFO] frobbed toml for Shacham6/serde_training_rust written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Shacham6/serde_training_rust/Cargo.toml [INFO] crate Shacham6/serde_training_rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking Shacham6/serde_training_rust against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-4/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/Shacham6/serde_training_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c36376fa62ad129a68c9eaad12ab863aa84567019ca337870a49e2c69ad86dce [INFO] running `"docker" "start" "-a" "c36376fa62ad129a68c9eaad12ab863aa84567019ca337870a49e2c69ad86dce"` [INFO] [stderr] Checking serde_yaml v0.7.1 [INFO] [stderr] Checking serde_fun v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize` [INFO] [stderr] --> src/main.rs:13:17 [INFO] [stderr] | [INFO] [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use serde_yaml::from_str as yaml_from_str; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde` [INFO] [stderr] --> src/examples/json_example.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use serde; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_derive` [INFO] [stderr] --> src/examples/json_example.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use serde_derive; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/examples/json_example.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/examples/json_example.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env::args` [INFO] [stderr] --> src/examples/json_example.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::env::args; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Error` [INFO] [stderr] --> src/examples/json_example.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize` [INFO] [stderr] --> src/examples/json_example.rs:12:17 [INFO] [stderr] | [INFO] [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str` [INFO] [stderr] --> src/examples/json_example.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use serde_yaml::from_str as yaml_from_str; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde` [INFO] [stderr] --> src/examples/yaml_example.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use serde; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_derive` [INFO] [stderr] --> src/examples/yaml_example.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use serde_derive; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env::args` [INFO] [stderr] --> src/examples/yaml_example.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::env::args; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/main.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize` [INFO] [stderr] --> src/main.rs:13:17 [INFO] [stderr] | [INFO] [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | use serde_yaml::from_str as yaml_from_str; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde` [INFO] [stderr] --> src/examples/json_example.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use serde; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_derive` [INFO] [stderr] --> src/examples/json_example.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use serde_derive; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::fs::File` [INFO] [stderr] --> src/examples/json_example.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::fs::File; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Read` [INFO] [stderr] --> src/examples/json_example.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::io::Read; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env::args` [INFO] [stderr] --> src/examples/json_example.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::env::args; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::io::Error` [INFO] [stderr] --> src/examples/json_example.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use std::io::Error; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize` [INFO] [stderr] --> src/examples/json_example.rs:12:17 [INFO] [stderr] | [INFO] [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned}; [INFO] [stderr] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str` [INFO] [stderr] --> src/examples/json_example.rs:13:5 [INFO] [stderr] | [INFO] [stderr] 13 | use serde_yaml::from_str as yaml_from_str; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde` [INFO] [stderr] --> src/examples/yaml_example.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use serde; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde_derive` [INFO] [stderr] --> src/examples/yaml_example.rs:2:5 [INFO] [stderr] | [INFO] [stderr] 2 | use serde_derive; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::env::args` [INFO] [stderr] --> src/examples/yaml_example.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use std::env::args; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/examples/json_example.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | read_content_of_file_to_string(filepath.as_str(), &mut string); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/examples/json_example.rs:18:5 [INFO] [stderr] | [INFO] [stderr] 18 | read_content_of_file_to_string(filepath.as_str(), &mut string); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2.67s [INFO] running `"docker" "inspect" "c36376fa62ad129a68c9eaad12ab863aa84567019ca337870a49e2c69ad86dce"` [INFO] running `"docker" "rm" "-f" "c36376fa62ad129a68c9eaad12ab863aa84567019ca337870a49e2c69ad86dce"` [INFO] [stdout] c36376fa62ad129a68c9eaad12ab863aa84567019ca337870a49e2c69ad86dce