Dec 05 00:08:37.420 INFO checking Shacham6/serde_training_rust against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 05 00:08:37.420 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 05 00:08:37.775 INFO [stdout] 2b0bcebf704a228afc130c8e23fb7f1559a658b15c96c3f3bac349ed45f9d20a
Dec 05 00:08:37.780 INFO running `"docker" "start" "-a" "2b0bcebf704a228afc130c8e23fb7f1559a658b15c96c3f3bac349ed45f9d20a"`
Dec 05 00:08:39.686 INFO [stderr] usermod: no changes
Dec 05 00:08:39.835 INFO [stderr]     Checking serde_yaml v0.7.1
Dec 05 00:08:41.455 INFO [stderr]     Checking serde_fun v0.1.0 (/source)
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 00:08:42.615 INFO [stderr]  --> src/main.rs:8:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 8 | use std::fs::File;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::io::Read`
Dec 05 00:08:42.615 INFO [stderr]  --> src/main.rs:9:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 9 | use std::io::Read;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 05 00:08:42.615 INFO [stderr]   --> src/main.rs:10:5
Dec 05 00:08:42.615 INFO [stderr]    |
Dec 05 00:08:42.615 INFO [stderr] 10 | use std::vec::Vec;
Dec 05 00:08:42.615 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 05 00:08:42.615 INFO [stderr]   --> src/main.rs:13:17
Dec 05 00:08:42.615 INFO [stderr]    |
Dec 05 00:08:42.615 INFO [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned};
Dec 05 00:08:42.615 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 05 00:08:42.615 INFO [stderr]   --> src/main.rs:14:5
Dec 05 00:08:42.615 INFO [stderr]    |
Dec 05 00:08:42.615 INFO [stderr] 14 | use serde_yaml::from_str as yaml_from_str;
Dec 05 00:08:42.615 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `serde`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/json_example.rs:1:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 1 | use serde;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `serde_derive`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/json_example.rs:3:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 3 | use serde_derive;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/json_example.rs:5:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 5 | use std::fs::File;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::io::Read`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/json_example.rs:6:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 6 | use std::io::Read;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::env::args`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/json_example.rs:8:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 8 | use std::env::args;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `std::io::Error`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/json_example.rs:9:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 9 | use std::io::Error;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 05 00:08:42.615 INFO [stderr]   --> src/examples/json_example.rs:12:17
Dec 05 00:08:42.615 INFO [stderr]    |
Dec 05 00:08:42.615 INFO [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned};
Dec 05 00:08:42.615 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 05 00:08:42.615 INFO [stderr]   --> src/examples/json_example.rs:13:5
Dec 05 00:08:42.615 INFO [stderr]    |
Dec 05 00:08:42.615 INFO [stderr] 13 | use serde_yaml::from_str as yaml_from_str;
Dec 05 00:08:42.615 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:08:42.615 INFO [stderr] 
Dec 05 00:08:42.615 INFO [stderr] warning: unused import: `serde`
Dec 05 00:08:42.615 INFO [stderr]  --> src/examples/yaml_example.rs:1:5
Dec 05 00:08:42.615 INFO [stderr]   |
Dec 05 00:08:42.615 INFO [stderr] 1 | use serde;
Dec 05 00:08:42.615 INFO [stderr]   |     ^^^^^
Dec 05 00:08:42.616 INFO [stderr] 
Dec 05 00:08:42.616 INFO [stderr] warning: unused import: `serde_derive`
Dec 05 00:08:42.616 INFO [stderr]  --> src/examples/yaml_example.rs:2:5
Dec 05 00:08:42.616 INFO [stderr]   |
Dec 05 00:08:42.616 INFO [stderr] 2 | use serde_derive;
Dec 05 00:08:42.616 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 00:08:42.616 INFO [stderr] 
Dec 05 00:08:42.616 INFO [stderr] warning: unused import: `std::env::args`
Dec 05 00:08:42.616 INFO [stderr]  --> src/examples/yaml_example.rs:5:5
Dec 05 00:08:42.616 INFO [stderr]   |
Dec 05 00:08:42.616 INFO [stderr] 5 | use std::env::args;
Dec 05 00:08:42.616 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 00:08:42.616 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 00:08:42.747 INFO [stderr]  --> src/main.rs:8:5
Dec 05 00:08:42.747 INFO [stderr]   |
Dec 05 00:08:42.747 INFO [stderr] 8 | use std::fs::File;
Dec 05 00:08:42.747 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.747 INFO [stderr]   |
Dec 05 00:08:42.747 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `std::io::Read`
Dec 05 00:08:42.747 INFO [stderr]  --> src/main.rs:9:5
Dec 05 00:08:42.747 INFO [stderr]   |
Dec 05 00:08:42.747 INFO [stderr] 9 | use std::io::Read;
Dec 05 00:08:42.747 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `std::vec::Vec`
Dec 05 00:08:42.747 INFO [stderr]   --> src/main.rs:10:5
Dec 05 00:08:42.747 INFO [stderr]    |
Dec 05 00:08:42.747 INFO [stderr] 10 | use std::vec::Vec;
Dec 05 00:08:42.747 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 05 00:08:42.747 INFO [stderr]   --> src/main.rs:13:17
Dec 05 00:08:42.747 INFO [stderr]    |
Dec 05 00:08:42.747 INFO [stderr] 13 | use serde::de::{Deserialize, DeserializeOwned};
Dec 05 00:08:42.747 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 05 00:08:42.747 INFO [stderr]   --> src/main.rs:14:5
Dec 05 00:08:42.747 INFO [stderr]    |
Dec 05 00:08:42.747 INFO [stderr] 14 | use serde_yaml::from_str as yaml_from_str;
Dec 05 00:08:42.747 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `serde`
Dec 05 00:08:42.747 INFO [stderr]  --> src/examples/json_example.rs:1:5
Dec 05 00:08:42.747 INFO [stderr]   |
Dec 05 00:08:42.747 INFO [stderr] 1 | use serde;
Dec 05 00:08:42.747 INFO [stderr]   |     ^^^^^
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `serde_derive`
Dec 05 00:08:42.747 INFO [stderr]  --> src/examples/json_example.rs:3:5
Dec 05 00:08:42.747 INFO [stderr]   |
Dec 05 00:08:42.747 INFO [stderr] 3 | use serde_derive;
Dec 05 00:08:42.747 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 00:08:42.747 INFO [stderr] 
Dec 05 00:08:42.747 INFO [stderr] warning: unused import: `std::fs::File`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/json_example.rs:5:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 5 | use std::fs::File;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `std::io::Read`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/json_example.rs:6:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 6 | use std::io::Read;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `std::env::args`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/json_example.rs:8:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 8 | use std::env::args;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `std::io::Error`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/json_example.rs:9:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 9 | use std::io::Error;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused imports: `DeserializeOwned`, `Deserialize`
Dec 05 00:08:42.748 INFO [stderr]   --> src/examples/json_example.rs:12:17
Dec 05 00:08:42.748 INFO [stderr]    |
Dec 05 00:08:42.748 INFO [stderr] 12 | use serde::de::{Deserialize, DeserializeOwned};
Dec 05 00:08:42.748 INFO [stderr]    |                 ^^^^^^^^^^^  ^^^^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `serde_yaml::from_str as yaml_from_str`
Dec 05 00:08:42.748 INFO [stderr]   --> src/examples/json_example.rs:13:5
Dec 05 00:08:42.748 INFO [stderr]    |
Dec 05 00:08:42.748 INFO [stderr] 13 | use serde_yaml::from_str as yaml_from_str;
Dec 05 00:08:42.748 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `serde`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/yaml_example.rs:1:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 1 | use serde;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `serde_derive`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/yaml_example.rs:2:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 2 | use serde_derive;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.748 INFO [stderr] warning: unused import: `std::env::args`
Dec 05 00:08:42.748 INFO [stderr]  --> src/examples/yaml_example.rs:5:5
Dec 05 00:08:42.748 INFO [stderr]   |
Dec 05 00:08:42.748 INFO [stderr] 5 | use std::env::args;
Dec 05 00:08:42.748 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 05 00:08:42.748 INFO [stderr] 
Dec 05 00:08:42.927 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:08:42.927 INFO [stderr]   --> src/examples/json_example.rs:18:5
Dec 05 00:08:42.927 INFO [stderr]    |
Dec 05 00:08:42.927 INFO [stderr] 18 |     read_content_of_file_to_string(filepath.as_str(), &mut string);
Dec 05 00:08:42.927 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:08:42.927 INFO [stderr]    |
Dec 05 00:08:42.927 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 00:08:42.927 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:08:42.927 INFO [stderr] 
Dec 05 00:08:42.983 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 00:08:42.983 INFO [stderr]   --> src/examples/json_example.rs:18:5
Dec 05 00:08:42.983 INFO [stderr]    |
Dec 05 00:08:42.983 INFO [stderr] 18 |     read_content_of_file_to_string(filepath.as_str(), &mut string);
Dec 05 00:08:42.983 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 00:08:42.983 INFO [stderr]    |
Dec 05 00:08:42.983 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 05 00:08:42.983 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 00:08:42.983 INFO [stderr] 
Dec 05 00:08:43.015 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.29s
Dec 05 00:08:43.023 INFO [stderr] su: No module specific data is present
Dec 05 00:08:43.985 INFO running `"docker" "inspect" "2b0bcebf704a228afc130c8e23fb7f1559a658b15c96c3f3bac349ed45f9d20a"`
Dec 05 00:08:44.401 INFO running `"docker" "rm" "-f" "2b0bcebf704a228afc130c8e23fb7f1559a658b15c96c3f3bac349ed45f9d20a"`
Dec 05 00:08:44.767 INFO [stdout] 2b0bcebf704a228afc130c8e23fb7f1559a658b15c96c3f3bac349ed45f9d20a