Dec 12 00:21:17.076 INFO checking Shacham6/serde_training_rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 12 00:21:17.076 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +aa9aa79c3c583aab59ac9134542d60a780c35e2e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 12 00:21:17.544 INFO [stdout] bf271056a771c3acd7fdb5c49d022fa3f03446be71262bb92dfa707d646d7e76
Dec 12 00:21:17.546 INFO running `"docker" "start" "-a" "bf271056a771c3acd7fdb5c49d022fa3f03446be71262bb92dfa707d646d7e76"`
Dec 12 00:21:19.085 INFO [stderr] usermod: no changes
Dec 12 00:21:19.200 INFO [stderr]     Checking serde_yaml v0.7.1
Dec 12 00:21:20.938 INFO [stderr]     Checking serde_fun v0.1.0 (/source)
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::fs::File`
Dec 12 00:21:22.181 INFO [stderr]  --> src/main.rs:8:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 8 | use std::fs::File;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::io::Read`
Dec 12 00:21:22.181 INFO [stderr]  --> src/main.rs:9:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 9 | use std::io::Read;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 12 00:21:22.181 INFO [stderr]   --> src/main.rs:10:5
Dec 12 00:21:22.181 INFO [stderr]    |
Dec 12 00:21:22.181 INFO [stderr] 10 | use std::vec::Vec;
Dec 12 00:21:22.181 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 12 00:21:22.181 INFO [stderr]   --> src/main.rs:13:17
Dec 12 00:21:22.181 INFO [stderr]    |
Dec 12 00:21:22.181 INFO [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned};
Dec 12 00:21:22.181 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 12 00:21:22.181 INFO [stderr]   --> src/main.rs:14:5
Dec 12 00:21:22.181 INFO [stderr]    |
Dec 12 00:21:22.181 INFO [stderr] 14 | use serde_yaml::from_str as yaml_from_str;
Dec 12 00:21:22.181 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `serde`
Dec 12 00:21:22.181 INFO [stderr]  --> src/examples/json_example.rs:1:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 1 | use serde;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `serde_derive`
Dec 12 00:21:22.181 INFO [stderr]  --> src/examples/json_example.rs:3:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 3 | use serde_derive;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::fs::File`
Dec 12 00:21:22.181 INFO [stderr]  --> src/examples/json_example.rs:5:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 5 | use std::fs::File;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::io::Read`
Dec 12 00:21:22.181 INFO [stderr]  --> src/examples/json_example.rs:6:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 6 | use std::io::Read;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::env::args`
Dec 12 00:21:22.181 INFO [stderr]  --> src/examples/json_example.rs:8:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 8 | use std::env::args;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `std::io::Error`
Dec 12 00:21:22.181 INFO [stderr]  --> src/examples/json_example.rs:9:5
Dec 12 00:21:22.181 INFO [stderr]   |
Dec 12 00:21:22.181 INFO [stderr] 9 | use std::io::Error;
Dec 12 00:21:22.181 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 12 00:21:22.181 INFO [stderr]   --> src/examples/json_example.rs:12:17
Dec 12 00:21:22.181 INFO [stderr]    |
Dec 12 00:21:22.181 INFO [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned};
Dec 12 00:21:22.181 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 12 00:21:22.181 INFO [stderr]   --> src/examples/json_example.rs:13:5
Dec 12 00:21:22.181 INFO [stderr]    |
Dec 12 00:21:22.181 INFO [stderr] 13 | use serde_yaml::from_str as yaml_from_str;
Dec 12 00:21:22.181 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:21:22.181 INFO [stderr] 
Dec 12 00:21:22.181 INFO [stderr] warning: unused import: `serde`
Dec 12 00:21:22.182 INFO [stderr]  --> src/examples/yaml_example.rs:1:5
Dec 12 00:21:22.182 INFO [stderr]   |
Dec 12 00:21:22.182 INFO [stderr] 1 | use serde;
Dec 12 00:21:22.182 INFO [stderr]   |     ^^^^^
Dec 12 00:21:22.182 INFO [stderr] 
Dec 12 00:21:22.182 INFO [stderr] warning: unused import: `serde_derive`
Dec 12 00:21:22.182 INFO [stderr]  --> src/examples/yaml_example.rs:2:5
Dec 12 00:21:22.182 INFO [stderr]   |
Dec 12 00:21:22.182 INFO [stderr] 2 | use serde_derive;
Dec 12 00:21:22.182 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 12 00:21:22.182 INFO [stderr] 
Dec 12 00:21:22.182 INFO [stderr] warning: unused import: `std::env::args`
Dec 12 00:21:22.182 INFO [stderr]  --> src/examples/yaml_example.rs:5:5
Dec 12 00:21:22.182 INFO [stderr]   |
Dec 12 00:21:22.182 INFO [stderr] 5 | use std::env::args;
Dec 12 00:21:22.182 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:21:22.182 INFO [stderr] 
Dec 12 00:21:22.387 INFO [stderr] warning: unused import: `std::fs::File`
Dec 12 00:21:22.387 INFO [stderr]  --> src/main.rs:8:5
Dec 12 00:21:22.387 INFO [stderr]   |
Dec 12 00:21:22.387 INFO [stderr] 8 | use std::fs::File;
Dec 12 00:21:22.387 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.387 INFO [stderr]   |
Dec 12 00:21:22.387 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:21:22.387 INFO [stderr] 
Dec 12 00:21:22.387 INFO [stderr] warning: unused import: `std::io::Read`
Dec 12 00:21:22.387 INFO [stderr]  --> src/main.rs:9:5
Dec 12 00:21:22.387 INFO [stderr]   |
Dec 12 00:21:22.387 INFO [stderr] 9 | use std::io::Read;
Dec 12 00:21:22.387 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.387 INFO [stderr] 
Dec 12 00:21:22.387 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 12 00:21:22.387 INFO [stderr]   --> src/main.rs:10:5
Dec 12 00:21:22.387 INFO [stderr]    |
Dec 12 00:21:22.387 INFO [stderr] 10 | use std::vec::Vec;
Dec 12 00:21:22.387 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 12 00:21:22.387 INFO [stderr] 
Dec 12 00:21:22.387 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 12 00:21:22.387 INFO [stderr]   --> src/main.rs:13:17
Dec 12 00:21:22.387 INFO [stderr]    |
Dec 12 00:21:22.387 INFO [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned};
Dec 12 00:21:22.387 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 12 00:21:22.387 INFO [stderr] 
Dec 12 00:21:22.387 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 12 00:21:22.387 INFO [stderr]   --> src/main.rs:14:5
Dec 12 00:21:22.387 INFO [stderr]    |
Dec 12 00:21:22.387 INFO [stderr] 14 | use serde_yaml::from_str as yaml_from_str;
Dec 12 00:21:22.387 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:21:22.387 INFO [stderr] 
Dec 12 00:21:22.387 INFO [stderr] warning: unused import: `serde`
Dec 12 00:21:22.387 INFO [stderr]  --> src/examples/json_example.rs:1:5
Dec 12 00:21:22.388 INFO [stderr]   |
Dec 12 00:21:22.388 INFO [stderr] 1 | use serde;
Dec 12 00:21:22.388 INFO [stderr]   |     ^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused import: `serde_derive`
Dec 12 00:21:22.388 INFO [stderr]  --> src/examples/json_example.rs:3:5
Dec 12 00:21:22.388 INFO [stderr]   |
Dec 12 00:21:22.388 INFO [stderr] 3 | use serde_derive;
Dec 12 00:21:22.388 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused import: `std::fs::File`
Dec 12 00:21:22.388 INFO [stderr]  --> src/examples/json_example.rs:5:5
Dec 12 00:21:22.388 INFO [stderr]   |
Dec 12 00:21:22.388 INFO [stderr] 5 | use std::fs::File;
Dec 12 00:21:22.388 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused import: `std::io::Read`
Dec 12 00:21:22.388 INFO [stderr]  --> src/examples/json_example.rs:6:5
Dec 12 00:21:22.388 INFO [stderr]   |
Dec 12 00:21:22.388 INFO [stderr] 6 | use std::io::Read;
Dec 12 00:21:22.388 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused import: `std::env::args`
Dec 12 00:21:22.388 INFO [stderr]  --> src/examples/json_example.rs:8:5
Dec 12 00:21:22.388 INFO [stderr]   |
Dec 12 00:21:22.388 INFO [stderr] 8 | use std::env::args;
Dec 12 00:21:22.388 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused import: `std::io::Error`
Dec 12 00:21:22.388 INFO [stderr]  --> src/examples/json_example.rs:9:5
Dec 12 00:21:22.388 INFO [stderr]   |
Dec 12 00:21:22.388 INFO [stderr] 9 | use std::io::Error;
Dec 12 00:21:22.388 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 12 00:21:22.388 INFO [stderr]   --> src/examples/json_example.rs:12:17
Dec 12 00:21:22.388 INFO [stderr]    |
Dec 12 00:21:22.388 INFO [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned};
Dec 12 00:21:22.388 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.388 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 12 00:21:22.388 INFO [stderr]   --> src/examples/json_example.rs:13:5
Dec 12 00:21:22.388 INFO [stderr]    |
Dec 12 00:21:22.388 INFO [stderr] 13 | use serde_yaml::from_str as yaml_from_str;
Dec 12 00:21:22.388 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:21:22.388 INFO [stderr] 
Dec 12 00:21:22.392 INFO [stderr] warning: unused import: `serde`
Dec 12 00:21:22.392 INFO [stderr]  --> src/examples/yaml_example.rs:1:5
Dec 12 00:21:22.392 INFO [stderr]   |
Dec 12 00:21:22.392 INFO [stderr] 1 | use serde;
Dec 12 00:21:22.392 INFO [stderr]   |     ^^^^^
Dec 12 00:21:22.392 INFO [stderr] 
Dec 12 00:21:22.392 INFO [stderr] warning: unused import: `serde_derive`
Dec 12 00:21:22.392 INFO [stderr]  --> src/examples/yaml_example.rs:2:5
Dec 12 00:21:22.392 INFO [stderr]   |
Dec 12 00:21:22.392 INFO [stderr] 2 | use serde_derive;
Dec 12 00:21:22.392 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 12 00:21:22.392 INFO [stderr] 
Dec 12 00:21:22.392 INFO [stderr] warning: unused import: `std::env::args`
Dec 12 00:21:22.392 INFO [stderr]  --> src/examples/yaml_example.rs:5:5
Dec 12 00:21:22.392 INFO [stderr]   |
Dec 12 00:21:22.392 INFO [stderr] 5 | use std::env::args;
Dec 12 00:21:22.392 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:21:22.392 INFO [stderr] 
Dec 12 00:21:22.664 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 00:21:22.664 INFO [stderr]   --> src/examples/json_example.rs:18:5
Dec 12 00:21:22.664 INFO [stderr]    |
Dec 12 00:21:22.664 INFO [stderr] 18 |     read_content_of_file_to_string(filepath.as_str(), &mut string);
Dec 12 00:21:22.664 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:21:22.664 INFO [stderr]    |
Dec 12 00:21:22.664 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 00:21:22.664 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 00:21:22.664 INFO [stderr] 
Dec 12 00:21:22.732 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 12 00:21:22.732 INFO [stderr]   --> src/examples/json_example.rs:18:5
Dec 12 00:21:22.732 INFO [stderr]    |
Dec 12 00:21:22.732 INFO [stderr] 18 |     read_content_of_file_to_string(filepath.as_str(), &mut string);
Dec 12 00:21:22.732 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:21:22.732 INFO [stderr]    |
Dec 12 00:21:22.732 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 12 00:21:22.732 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 12 00:21:22.732 INFO [stderr] 
Dec 12 00:21:22.780 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.66s
Dec 12 00:21:22.784 INFO [stderr] su: No module specific data is present
Dec 12 00:21:24.522 INFO running `"docker" "inspect" "bf271056a771c3acd7fdb5c49d022fa3f03446be71262bb92dfa707d646d7e76"`
Dec 12 00:21:24.944 INFO running `"docker" "rm" "-f" "bf271056a771c3acd7fdb5c49d022fa3f03446be71262bb92dfa707d646d7e76"`
Dec 12 00:21:25.216 INFO [stdout] bf271056a771c3acd7fdb5c49d022fa3f03446be71262bb92dfa707d646d7e76