[INFO] cloning repository https://github.com/resqiar/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/resqiar/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fresqiar%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fresqiar%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 03dcd84b9a7e2307cf9043cb2f146bf6d52fe7db
[INFO] testing resqiar/learn-rust against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fresqiar%2Flearn-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/resqiar/learn-rust on toolchain 1871252fc8bb672d40787e67404e6eaae7059369
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/resqiar/learn-rust
[INFO] finished tweaking git repo https://github.com/resqiar/learn-rust
[INFO] tweaked toml for git repo https://github.com/resqiar/learn-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/resqiar/learn-rust 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 678321787ae5453c59852f078d6e39ce60222bee9cd3c82b79181090a0e99e75
[INFO] running `Command { std: "docker" "start" "-a" "678321787ae5453c59852f078d6e39ce60222bee9cd3c82b79181090a0e99e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "678321787ae5453c59852f078d6e39ce60222bee9cd3c82b79181090a0e99e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "678321787ae5453c59852f078d6e39ce60222bee9cd3c82b79181090a0e99e75", kill_on_drop: false }`
[INFO] [stdout] 678321787ae5453c59852f078d6e39ce60222bee9cd3c82b79181090a0e99e75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d67b427f200cb7f72e4d85fdfd9dc05bc95c394d7193da942fc7ff0f16dfad1a
[INFO] running `Command { std: "docker" "start" "-a" "d67b427f200cb7f72e4d85fdfd9dc05bc95c394d7193da942fc7ff0f16dfad1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kind` and `value` are never read
[INFO] [stdout]  --> src/enums_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Language {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     kind: LanguageKind,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     value: Phrase,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(()),
[INFO] [stdout]    |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(String),
[INFO] [stdout]    |     ----------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `total_game` and `final_score` are never read
[INFO] [stdout]  --> src/generic_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Game<T, U> {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     total_game: T,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 4 |     final_score: U,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Electric` and `Petrol` are never constructed
[INFO] [stdout]  --> src/match_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum VType {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 3 |     Electric,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     Diesel,
[INFO] [stdout] 5 |     Petrol,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/struct_mod.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color(pub u32, pub u32, pub u32);
[INFO] [stdout]   |            ----- ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color((), (), ());
[INFO] [stdout]   |                  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/struct_mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Vehicle {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 6 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Vehicle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/struct_mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Rect {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 14 |     pub name: String,
[INFO] [stdout] 15 |     pub color: Color,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_num` is never used
[INFO] [stdout]  --> src/test_mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_num(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] running `Command { std: "docker" "inspect" "d67b427f200cb7f72e4d85fdfd9dc05bc95c394d7193da942fc7ff0f16dfad1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d67b427f200cb7f72e4d85fdfd9dc05bc95c394d7193da942fc7ff0f16dfad1a", kill_on_drop: false }`
[INFO] [stdout] d67b427f200cb7f72e4d85fdfd9dc05bc95c394d7193da942fc7ff0f16dfad1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7bca4d854796a83f8033dacf061c3ed1c4745c5b64e4bccbde74e1e9d400d9d8
[INFO] running `Command { std: "docker" "start" "-a" "7bca4d854796a83f8033dacf061c3ed1c4745c5b64e4bccbde74e1e9d400d9d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kind` and `value` are never read
[INFO] [stdout]  --> src/enums_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Language {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     kind: LanguageKind,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     value: Phrase,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(()),
[INFO] [stdout]    |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(String),
[INFO] [stdout]    |     ----------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `total_game` and `final_score` are never read
[INFO] [stdout]  --> src/generic_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Game<T, U> {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     total_game: T,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 4 |     final_score: U,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Electric` and `Petrol` are never constructed
[INFO] [stdout]  --> src/match_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum VType {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 3 |     Electric,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     Diesel,
[INFO] [stdout] 5 |     Petrol,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/struct_mod.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color(pub u32, pub u32, pub u32);
[INFO] [stdout]   |            ----- ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color((), (), ());
[INFO] [stdout]   |                  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/struct_mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Vehicle {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 6 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Vehicle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/struct_mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Rect {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 14 |     pub name: String,
[INFO] [stdout] 15 |     pub color: Color,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "7bca4d854796a83f8033dacf061c3ed1c4745c5b64e4bccbde74e1e9d400d9d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7bca4d854796a83f8033dacf061c3ed1c4745c5b64e4bccbde74e1e9d400d9d8", kill_on_drop: false }`
[INFO] [stdout] 7bca4d854796a83f8033dacf061c3ed1c4745c5b64e4bccbde74e1e9d400d9d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10629eaa432d1be7d7b82451f7e6d99dbcdbdcaf967ebf5009e7a834f99dd1d6
[INFO] running `Command { std: "docker" "start" "-a" "10629eaa432d1be7d7b82451f7e6d99dbcdbdcaf967ebf5009e7a834f99dd1d6", kill_on_drop: false }`
[INFO] [stderr] warning: fields `kind` and `value` are never read
[INFO] [stderr]  --> src/enums_mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Language {
[INFO] [stderr]   |        -------- fields in this struct
[INFO] [stderr] 3 |     kind: LanguageKind,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 4 |     value: Phrase,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/enums_mod.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |     MorningSalute(String),
[INFO] [stderr]    |     ------------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 28 |     MorningSalute(()),
[INFO] [stderr]    |                   ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/enums_mod.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     NightSalute(String),
[INFO] [stderr]    |     ----------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 29 |     NightSalute(()),
[INFO] [stderr]    |                 ~~
[INFO] [stderr] 
[INFO] [stderr] warning: fields `total_game` and `final_score` are never read
[INFO] [stderr]  --> src/generic_mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Game<T, U> {
[INFO] [stderr]   |        ---- fields in this struct
[INFO] [stderr] 3 |     total_game: T,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 4 |     final_score: U,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Electric` and `Petrol` are never constructed
[INFO] [stderr]  --> src/match_mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum VType {
[INFO] [stderr]   |      ----- variants in this enum
[INFO] [stderr] 3 |     Electric,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 4 |     Diesel,
[INFO] [stderr] 5 |     Petrol,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `VType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]  --> src/struct_mod.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Color(pub u32, pub u32, pub u32);
[INFO] [stderr]   |            ----- ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stderr]   |            |
[INFO] [stderr]   |            fields in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Color((), (), ());
[INFO] [stderr]   |                  ~~  ~~  ~~
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id` and `name` are never read
[INFO] [stderr]  --> src/struct_mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Vehicle {
[INFO] [stderr]   |        ------- fields in this struct
[INFO] [stderr] 6 |     id: usize,
[INFO] [stderr]   |     ^^
[INFO] [stderr] 7 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Vehicle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `color` is never read
[INFO] [stderr]   --> src/struct_mod.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Rect {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] 14 |     pub name: String,
[INFO] [stderr] 15 |     pub color: Color,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learning_rust` (bin "learning_rust" test) generated 8 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_rust-132035f30264ac1d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_mod::sum_test ... ok
[INFO] [stdout] test test_mod::can_hold_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_mod::can_hold_test stdout ----
[INFO] [stdout] thread 'test_mod::can_hold_test' panicked at src/test_mod.rs:33:5:
[INFO] [stdout] Should hold the second Box
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55ba3baeeca5 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x55ba3baeeca5 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55ba3baeeca5 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55ba3baeeca5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6ed9e62a156d84e4
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55ba3bb154eb - core::fmt::rt::Argument::fmt::h645c680983f03c9f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55ba3bb154eb - core::fmt::write::h8bcd80919a02be29
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55ba3baec4df - std::io::Write::write_fmt::h8d0c47c662cad79c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55ba3baeea7e - std::sys_common::backtrace::_print::h6306f131a28d62b0
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55ba3baeea7e - std::sys_common::backtrace::print::h7079288e0a26dfcc
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55ba3baf04a9 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba
[INFO] [stdout]   10:     0x55ba3baf016e - std::panicking::default_hook::hd56ee406bf547b5c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:295:9
[INFO] [stdout]   11:     0x55ba3bac13ca - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::he5eacdef44c8728f
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   12:     0x55ba3bac13ca - test::test_main::{{closure}}::h0ec9aed229e79095
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x55ba3baf0aab - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hcbd0d80e1ad4e4f9
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   14:     0x55ba3baf0aab - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13
[INFO] [stdout]   15:     0x55ba3baf07eb - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:656:13
[INFO] [stdout]   16:     0x55ba3baef169 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55ba3baf0557 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5
[INFO] [stdout]   18:     0x55ba3ba8b833 - core::panicking::panic_fmt::hec11a924b87ce965
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55ba3ba8db7b - learning_rust::test_mod::can_hold_test::h7b16107836387001
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test_mod.rs:33:5
[INFO] [stdout]   20:     0x55ba3ba8d9d7 - learning_rust::test_mod::can_hold_test::{{closure}}::h52dd483828eba387
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test_mod.rs:16:19
[INFO] [stdout]   21:     0x55ba3ba8c566 - core::ops::function::FnOnce::call_once::h8e64cbafdd97a67d
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x55ba3bac5dab - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x55ba3bac5dab - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18
[INFO] [stdout]   24:     0x55ba3bac54b1 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60
[INFO] [stdout]   25:     0x55ba3bac54b1 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   26:     0x55ba3bac54b1 - std::panicking::try::do_call::h1bf2463bccd4b28c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   27:     0x55ba3bac54b1 - std::panicking::try::hd6d4808c9fab4fa5
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   28:     0x55ba3bac54b1 - std::panic::catch_unwind::hd5641d97d123f9f2
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   29:     0x55ba3bac54b1 - test::run_test_in_process::hc273b71c8b878a4c
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27
[INFO] [stdout]   30:     0x55ba3bac54b1 - test::run_test::{{closure}}::h6838df834eb8467e
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43
[INFO] [stdout]   31:     0x55ba3ba8de74 - test::run_test::{{closure}}::h608b98ecff5665fb
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41
[INFO] [stdout]   32:     0x55ba3ba8de74 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   33:     0x55ba3ba928a2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17
[INFO] [stdout]   34:     0x55ba3ba928a2 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   35:     0x55ba3ba928a2 - std::panicking::try::do_call::h4f1a44bd81423be1
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40
[INFO] [stdout]   36:     0x55ba3ba928a2 - std::panicking::try::h5e02afcb81dcd361
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19
[INFO] [stdout]   37:     0x55ba3ba928a2 - std::panic::catch_unwind::h022f75775bfd8c45
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14
[INFO] [stdout]   38:     0x55ba3ba928a2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30
[INFO] [stdout]   39:     0x55ba3ba928a2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x55ba3baf4c8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7a343dc551c06baa
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   41:     0x55ba3baf4c8b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h30b8111cbaa644f3
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   42:     0x55ba3baf4c8b - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11
[INFO] [stdout]                                at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   43:     0x7f977d5dcac3 - <unknown>
[INFO] [stdout]   44:     0x7f977d66da04 - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_mod::can_hold_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin learning_rust`
[INFO] running `Command { std: "docker" "inspect" "10629eaa432d1be7d7b82451f7e6d99dbcdbdcaf967ebf5009e7a834f99dd1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10629eaa432d1be7d7b82451f7e6d99dbcdbdcaf967ebf5009e7a834f99dd1d6", kill_on_drop: false }`
[INFO] [stdout] 10629eaa432d1be7d7b82451f7e6d99dbcdbdcaf967ebf5009e7a834f99dd1d6
[INFO] testing resqiar/learn-rust against try#b642703cf9526da1e72c0b6755753b939a9c6b6d for pr-125151
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fresqiar%2Flearn-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/resqiar/learn-rust on toolchain b642703cf9526da1e72c0b6755753b939a9c6b6d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/resqiar/learn-rust
[INFO] finished tweaking git repo https://github.com/resqiar/learn-rust
[INFO] tweaked toml for git repo https://github.com/resqiar/learn-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/resqiar/learn-rust 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" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f001eb2ccbfea46b2620490f041dbeec9d4992609bb7681c93f9d7b37727dc1
[INFO] running `Command { std: "docker" "start" "-a" "3f001eb2ccbfea46b2620490f041dbeec9d4992609bb7681c93f9d7b37727dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f001eb2ccbfea46b2620490f041dbeec9d4992609bb7681c93f9d7b37727dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f001eb2ccbfea46b2620490f041dbeec9d4992609bb7681c93f9d7b37727dc1", kill_on_drop: false }`
[INFO] [stdout] 3f001eb2ccbfea46b2620490f041dbeec9d4992609bb7681c93f9d7b37727dc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 835826e155b68a43150ac3f12890c204dfc6c6c198c21fd60205ba2158eca8f9
[INFO] running `Command { std: "docker" "start" "-a" "835826e155b68a43150ac3f12890c204dfc6c6c198c21fd60205ba2158eca8f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kind` and `value` are never read
[INFO] [stdout]  --> src/enums_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Language {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     kind: LanguageKind,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     value: Phrase,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(()),
[INFO] [stdout]    |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(String),
[INFO] [stdout]    |     ----------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `total_game` and `final_score` are never read
[INFO] [stdout]  --> src/generic_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Game<T, U> {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     total_game: T,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 4 |     final_score: U,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Electric` and `Petrol` are never constructed
[INFO] [stdout]  --> src/match_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum VType {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 3 |     Electric,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     Diesel,
[INFO] [stdout] 5 |     Petrol,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/struct_mod.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color(pub u32, pub u32, pub u32);
[INFO] [stdout]   |            ----- ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color((), (), ());
[INFO] [stdout]   |                  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/struct_mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Vehicle {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 6 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Vehicle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/struct_mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Rect {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 14 |     pub name: String,
[INFO] [stdout] 15 |     pub color: Color,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_num` is never used
[INFO] [stdout]  --> src/test_mod.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_num(a: i32, b: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.39s
[INFO] running `Command { std: "docker" "inspect" "835826e155b68a43150ac3f12890c204dfc6c6c198c21fd60205ba2158eca8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "835826e155b68a43150ac3f12890c204dfc6c6c198c21fd60205ba2158eca8f9", kill_on_drop: false }`
[INFO] [stdout] 835826e155b68a43150ac3f12890c204dfc6c6c198c21fd60205ba2158eca8f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c34ac11446670f47e36c91e26f1e87159d3a608e0a81c6d6d99ddea62f66f3f
[INFO] running `Command { std: "docker" "start" "-a" "4c34ac11446670f47e36c91e26f1e87159d3a608e0a81c6d6d99ddea62f66f3f", kill_on_drop: false }`
[INFO] [stderr]    Compiling learning_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `kind` and `value` are never read
[INFO] [stdout]  --> src/enums_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Language {
[INFO] [stdout]   |        -------- fields in this struct
[INFO] [stdout] 3 |     kind: LanguageKind,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 4 |     value: Phrase,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:28:19
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(String),
[INFO] [stdout]    |     ------------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 28 |     MorningSalute(()),
[INFO] [stdout]    |                   ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/enums_mod.rs:29:17
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(String),
[INFO] [stdout]    |     ----------- ^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 29 |     NightSalute(()),
[INFO] [stdout]    |                 ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `total_game` and `final_score` are never read
[INFO] [stdout]  --> src/generic_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct Game<T, U> {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     total_game: T,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 4 |     final_score: U,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Electric` and `Petrol` are never constructed
[INFO] [stdout]  --> src/match_mod.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | enum VType {
[INFO] [stdout]   |      ----- variants in this enum
[INFO] [stdout] 3 |     Electric,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 4 |     Diesel,
[INFO] [stdout] 5 |     Petrol,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `VType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0`, `1`, and `2` are never read
[INFO] [stdout]  --> src/struct_mod.rs:2:18
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color(pub u32, pub u32, pub u32);
[INFO] [stdout]   |            ----- ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Color((), (), ());
[INFO] [stdout]   |                  ~~  ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `name` are never read
[INFO] [stdout]  --> src/struct_mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Vehicle {
[INFO] [stdout]   |        ------- fields in this struct
[INFO] [stdout] 6 |     id: usize,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 7 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Vehicle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `color` is never read
[INFO] [stdout]   --> src/struct_mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Rect {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 14 |     pub name: String,
[INFO] [stdout] 15 |     pub color: Color,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "4c34ac11446670f47e36c91e26f1e87159d3a608e0a81c6d6d99ddea62f66f3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c34ac11446670f47e36c91e26f1e87159d3a608e0a81c6d6d99ddea62f66f3f", kill_on_drop: false }`
[INFO] [stdout] 4c34ac11446670f47e36c91e26f1e87159d3a608e0a81c6d6d99ddea62f66f3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+b642703cf9526da1e72c0b6755753b939a9c6b6d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 837001c5125555288080044dccad0f7730ab153bbb1e6733976d1818cbde618d
[INFO] running `Command { std: "docker" "start" "-a" "837001c5125555288080044dccad0f7730ab153bbb1e6733976d1818cbde618d", kill_on_drop: false }`
[INFO] [stderr] warning: fields `kind` and `value` are never read
[INFO] [stderr]  --> src/enums_mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Language {
[INFO] [stderr]   |        -------- fields in this struct
[INFO] [stderr] 3 |     kind: LanguageKind,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr] 4 |     value: Phrase,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Language` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/enums_mod.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 |     MorningSalute(String),
[INFO] [stderr]    |     ------------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 28 |     MorningSalute(()),
[INFO] [stderr]    |                   ~~
[INFO] [stderr] 
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/enums_mod.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 |     NightSalute(String),
[INFO] [stderr]    |     ----------- ^^^^^^
[INFO] [stderr]    |     |
[INFO] [stderr]    |     field in this variant
[INFO] [stderr]    |
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 29 |     NightSalute(()),
[INFO] [stderr]    |                 ~~
[INFO] [stderr] 
[INFO] [stderr] warning: fields `total_game` and `final_score` are never read
[INFO] [stderr]  --> src/generic_mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | struct Game<T, U> {
[INFO] [stderr]   |        ---- fields in this struct
[INFO] [stderr] 3 |     total_game: T,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 4 |     final_score: U,
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Game` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: variants `Electric` and `Petrol` are never constructed
[INFO] [stderr]  --> src/match_mod.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | enum VType {
[INFO] [stderr]   |      ----- variants in this enum
[INFO] [stderr] 3 |     Electric,
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 4 |     Diesel,
[INFO] [stderr] 5 |     Petrol,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `VType` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0`, `1`, and `2` are never read
[INFO] [stderr]  --> src/struct_mod.rs:2:18
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Color(pub u32, pub u32, pub u32);
[INFO] [stderr]   |            ----- ^^^^^^^  ^^^^^^^  ^^^^^^^
[INFO] [stderr]   |            |
[INFO] [stderr]   |            fields in this struct
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Color` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub struct Color((), (), ());
[INFO] [stderr]   |                  ~~  ~~  ~~
[INFO] [stderr] 
[INFO] [stderr] warning: fields `id` and `name` are never read
[INFO] [stderr]  --> src/struct_mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | struct Vehicle {
[INFO] [stderr]   |        ------- fields in this struct
[INFO] [stderr] 6 |     id: usize,
[INFO] [stderr]   |     ^^
[INFO] [stderr] 7 |     name: String,
[INFO] [stderr]   |     ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `Vehicle` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `color` is never read
[INFO] [stderr]   --> src/struct_mod.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub struct Rect {
[INFO] [stderr]    |            ---- field in this struct
[INFO] [stderr] 14 |     pub name: String,
[INFO] [stderr] 15 |     pub color: Color,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `learning_rust` (bin "learning_rust" test) generated 8 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/learning_rust-132035f30264ac1d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_mod::sum_test ... ok
[INFO] [stdout] test test_mod::can_hold_test ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_mod::can_hold_test stdout ----
[INFO] [stdout] thread 'test_mod::can_hold_test' panicked at src/test_mod.rs:33:5:
[INFO] [stdout] Should hold the second Box
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55a901accd45 - std::backtrace_rs::backtrace::libunwind::trace::he49dc9a9e3164223
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stdout]    1:     0x55a901accd45 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a3e77c68030aa6b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55a901accd45 - std::sys_common::backtrace::_print_fmt::h9479ad2f99afd5d4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55a901accd45 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfb01aa1fa3fb1821
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55a901af352b - core::fmt::rt::Argument::fmt::h125e56152abbc1c3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/rt.rs:165:63
[INFO] [stdout]    5:     0x55a901af352b - core::fmt::write::hb0ab4ff05ccfe741
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/fmt/mod.rs:1169:21
[INFO] [stdout]    6:     0x55a901aca62f - std::io::Write::write_fmt::hea6336dbf2fa00b8
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/io/mod.rs:1835:15
[INFO] [stdout]    7:     0x55a901accb1e - std::sys_common::backtrace::_print::h79ca548f3a2adf4b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55a901accb1e - std::sys_common::backtrace::print::h9aebf997b2fea2d3
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55a901ace489 - std::panicking::default_hook::{{closure}}::h68a0954af2694526
[INFO] [stdout]   10:     0x55a901ace1dc - std::panicking::default_hook::h5be50cc6849ffb00
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:295:9
[INFO] [stdout]   11:     0x55a901a9f49f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd874405dcbd1d3ed
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   12:     0x55a901a9f49f - test::test_main::{{closure}}::h4f26a9df34a84b94
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x55a901acea8b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h00e96d9c62aa9a12
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2036:9
[INFO] [stdout]   14:     0x55a901acea8b - std::panicking::rust_panic_with_hook::h3c0df6036729334c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:799:13
[INFO] [stdout]   15:     0x55a901ace7cb - std::panicking::begin_panic_handler::{{closure}}::ha3a21e93c4cfd807
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:656:13
[INFO] [stdout]   16:     0x55a901acd209 - std::sys_common::backtrace::__rust_end_short_backtrace::h19508a8f8ae71dc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55a901ace537 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:652:5
[INFO] [stdout]   18:     0x55a901a69813 - core::panicking::panic_fmt::h2ba8af99174d83ea
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55a901a6bb5b - learning_rust::test_mod::can_hold_test::h5077ed6f948455f3
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test_mod.rs:33:5
[INFO] [stdout]   20:     0x55a901a6b9b7 - learning_rust::test_mod::can_hold_test::{{closure}}::hb3036c255c78aec0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test_mod.rs:16:19
[INFO] [stdout]   21:     0x55a901a6a586 - core::ops::function::FnOnce::call_once::hc00f5c6ea3004cac
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x55a901aa3dbb - core::ops::function::FnOnce::call_once::h18c6bf92212b87a4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x55a901aa3dbb - test::__rust_begin_short_backtrace::hdcf0edcfa9080086
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:625:18
[INFO] [stdout]   24:     0x55a901aa3481 - test::run_test_in_process::{{closure}}::heac2c4eb375d2d10
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:648:60
[INFO] [stdout]   25:     0x55a901aa3481 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0289bafc8a1cc004
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   26:     0x55a901aa3481 - std::panicking::try::do_call::h5e158f1ad8a5f983
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   27:     0x55a901aa3481 - std::panicking::try::hea3411d60321c4de
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   28:     0x55a901aa3481 - std::panic::catch_unwind::hafb7bb18bc47bbc7
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   29:     0x55a901aa3481 - test::run_test_in_process::h74dd138dc7762d99
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:648:27
[INFO] [stdout]   30:     0x55a901aa3481 - test::run_test::{{closure}}::h6b390822e63606cf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:569:43
[INFO] [stdout]   31:     0x55a901a6be54 - test::run_test::{{closure}}::h6e11dba8131d354b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/test/src/lib.rs:599:41
[INFO] [stdout]   32:     0x55a901a6be54 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha71b3541b59bdbbb
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   33:     0x55a901a70922 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hef92127c5ef9e53c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/thread/mod.rs:542:17
[INFO] [stdout]   34:     0x55a901a70922 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h859c109f9d11c92b
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   35:     0x55a901a70922 - std::panicking::try::do_call::hbf534c458cd858f0
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:559:40
[INFO] [stdout]   36:     0x55a901a70922 - std::panicking::try::h65c18365a7b9ad90
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panicking.rs:523:19
[INFO] [stdout]   37:     0x55a901a70922 - std::panic::catch_unwind::h21b25d4c69478c39
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/panic.rs:149:14
[INFO] [stdout]   38:     0x55a901a70922 - std::thread::Builder::spawn_unchecked_::{{closure}}::h23335f620275a9bf
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/thread/mod.rs:541:30
[INFO] [stdout]   39:     0x55a901a70922 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb491dc55513e9b7c
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x55a901ad2c5b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h41b39260afcffdc9
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   41:     0x55a901ad2c5b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6694c8dc6dd010c4
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/alloc/src/boxed.rs:2022:9
[INFO] [stdout]   42:     0x55a901ad2c5b - std::sys::pal::unix::thread::Thread::new::thread_start::hf16038e1c8e19c99
[INFO] [stdout]                                at /rustc/b642703cf9526da1e72c0b6755753b939a9c6b6d/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   43:     0x7f53e8d16ac3 - <unknown>
[INFO] [stdout]   44:     0x7f53e8da7a04 - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_mod::can_hold_test
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin learning_rust`
[INFO] running `Command { std: "docker" "inspect" "837001c5125555288080044dccad0f7730ab153bbb1e6733976d1818cbde618d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "837001c5125555288080044dccad0f7730ab153bbb1e6733976d1818cbde618d", kill_on_drop: false }`
[INFO] [stdout] 837001c5125555288080044dccad0f7730ab153bbb1e6733976d1818cbde618d
