[INFO] cloning repository https://github.com/ekmanss/rust_homework
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ekmanss/rust_homework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekmanss%2Frust_homework", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekmanss%2Frust_homework'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d45604d98cf9f6ae3388267b4c651e1d7070ff1a
[INFO] checking ekmanss/rust_homework against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekmanss%2Frust_homework" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ekmanss/rust_homework on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ekmanss/rust_homework
[INFO] finished tweaking git repo https://github.com/ekmanss/rust_homework
[INFO] tweaked toml for git repo https://github.com/ekmanss/rust_homework written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ekmanss/rust_homework 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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "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 ekmanss/rust_homework against try#3931cbb869e499bf6db1e4d580cc247efbf183df for pr-118920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fekmanss%2Frust_homework" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ekmanss/rust_homework on toolchain 3931cbb869e499bf6db1e4d580cc247efbf183df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ekmanss/rust_homework
[INFO] finished tweaking git repo https://github.com/ekmanss/rust_homework
[INFO] tweaked toml for git repo https://github.com/ekmanss/rust_homework written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ekmanss/rust_homework 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" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 60155c857e923667196952b9ecef428a940fff01a210ab2e088d14102e7bad80
[INFO] running `Command { std: "docker" "start" "-a" "60155c857e923667196952b9ecef428a940fff01a210ab2e088d14102e7bad80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "60155c857e923667196952b9ecef428a940fff01a210ab2e088d14102e7bad80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60155c857e923667196952b9ecef428a940fff01a210ab2e088d14102e7bad80", kill_on_drop: false }`
[INFO] [stdout] 60155c857e923667196952b9ecef428a940fff01a210ab2e088d14102e7bad80
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 804f296005b8797937969e65088932c026dd22c98ef6bc7aaa5218d07304e621
[INFO] running `Command { std: "docker" "start" "-a" "804f296005b8797937969e65088932c026dd22c98ef6bc7aaa5218d07304e621", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_homework v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]   --> src/class_three/student_manager.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Student {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     id: u32,
[INFO] [stdout] 11 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     age: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     gender: Gender,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/class_three/student_manager.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Clazz {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 19 |     id: u32,
[INFO] [stdout] 20 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usingEnum` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn usingEnum() {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `using_enum`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `vecEnum` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let vecEnum: Vec<Level> = vec![
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `vec_enum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `traitObject` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn traitObject() {
[INFO] [stdout]    |        ^^^^^^^^^^^ help: convert the identifier to snake case: `trait_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `vecEnum` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let vecEnum: Vec<&dyn LevelOption> = vec![&Worker, &Manager, &Boss];
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `vec_enum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `myTimeAdd` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn myTimeAdd() {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `my_time_add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `print_a2Z` should have a snake case name
[INFO] [stdout]  --> src/class_one/layer_one/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod print_a2Z;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `print_a2_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `print_A2z` should have a snake case name
[INFO] [stdout]  --> src/class_one/layer_one/layer_two/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod print_A2z;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `print_a2z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name`, `age`, and `gender` are never read
[INFO] [stdout]   --> src/class_three/student_manager.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 9  | pub struct Student {
[INFO] [stdout]    |            ------- fields in this struct
[INFO] [stdout] 10 |     id: u32,
[INFO] [stdout] 11 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     age: u8,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 13 |     gender: Gender,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/class_three/student_manager.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Clazz {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 19 |     id: u32,
[INFO] [stdout] 20 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `usingEnum` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn usingEnum() {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `using_enum`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `vecEnum` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let vecEnum: Vec<Level> = vec![
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `vec_enum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `traitObject` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub fn traitObject() {
[INFO] [stdout]    |        ^^^^^^^^^^^ help: convert the identifier to snake case: `trait_object`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `vecEnum` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let vecEnum: Vec<&dyn LevelOption> = vec![&Worker, &Manager, &Boss];
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `vec_enum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `myTimeAdd` should have a snake case name
[INFO] [stdout]   --> src/class_four/homework.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn myTimeAdd() {
[INFO] [stdout]    |        ^^^^^^^^^ help: convert the identifier to snake case: `my_time_add`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `print_a2Z` should have a snake case name
[INFO] [stdout]  --> src/class_one/layer_one/mod.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub mod print_a2Z;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `print_a2_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `print_A2z` should have a snake case name
[INFO] [stdout]  --> src/class_one/layer_one/layer_two/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod print_A2z;
[INFO] [stdout]   |         ^^^^^^^^^ help: convert the identifier to snake case: `print_a2z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_print_chars_Ok` should have a snake case name
[INFO] [stdout]   --> src/util/ascii.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     fn test_print_chars_Ok() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `test_print_chars_ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_print_chars_Err` should have a snake case name
[INFO] [stdout]   --> src/util/ascii.rs:66:8
[INFO] [stdout]    |
[INFO] [stdout] 66 |     fn test_print_chars_Err() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `test_print_chars_err`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "804f296005b8797937969e65088932c026dd22c98ef6bc7aaa5218d07304e621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "804f296005b8797937969e65088932c026dd22c98ef6bc7aaa5218d07304e621", kill_on_drop: false }`
[INFO] [stdout] 804f296005b8797937969e65088932c026dd22c98ef6bc7aaa5218d07304e621