[INFO] cloning repository https://github.com/micheal-ndoh/Groups
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/micheal-ndoh/Groups" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicheal-ndoh%2FGroups", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicheal-ndoh%2FGroups'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ab9090e5ac6c4698aa52f9065b351963039dd75
[INFO] testing micheal-ndoh/Groups against 1.98.0-beta.8+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmicheal-ndoh%2FGroups" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/micheal-ndoh/Groups
[INFO] finished tweaking git repo https://github.com/micheal-ndoh/Groups
[INFO] tweaked toml for git repo https://github.com/micheal-ndoh/Groups written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/micheal-ndoh/Groups on toolchain 1.98.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/micheal-ndoh/Groups 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" "+1.98.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_core v0.9.1
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.18
[INFO] [stderr]   Downloaded zerocopy v0.8.18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2
[INFO] running `Command { std: "docker" "start" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling zerocopy v0.8.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling ryu v1.0.19
[INFO] [stderr]    Compiling itoa v1.0.14
[INFO] [stderr]    Compiling csv-core v0.1.12
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling rand_core v0.9.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling cli-table-derive v0.4.6
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling csv v1.3.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling cli-table v0.4.9
[INFO] [stderr]    Compiling rand v0.9.0
[INFO] [stderr]    Compiling Groups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cell`, `Style`, and `print_stdout`
[INFO] [stdout]  --> src/models/topic.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | use cli_table::{format::Justify, print_stdout, Cell, Color, Style, Table};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^  ^^^^         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]  --> src/application.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |         group::{self, Group},
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 8 |         student::{self, Student},
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GenDataDisplay` is never used
[INFO] [stdout]  --> src/traits/gen_data_display.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait GenDataDisplay {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/traits/gen_data_display.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(dead_code)]
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/application.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             Helper::display(vec![group].iter());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let _ = Helper::display(vec![group].iter());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/application.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             Helper::display(students.iter());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let _ = Helper::display(students.iter());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 8.98s
[INFO] running `Command { std: "docker" "inspect" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling Groups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Cell`, `Style`, and `print_stdout`
[INFO] [stdout]  --> src/models/topic.rs:6:34
[INFO] [stdout]   |
[INFO] [stdout] 6 | use cli_table::{format::Justify, print_stdout, Cell, Color, Style, Table};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^  ^^^^         ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]  --> src/application.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 |         group::{self, Group},
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 8 |         student::{self, Student},
[INFO] [stdout]   |                   ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GenDataDisplay` is never used
[INFO] [stdout]  --> src/traits/gen_data_display.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub trait GenDataDisplay {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]  --> src/traits/gen_data_display.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[warn(dead_code)]
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/application.rs:73:13
[INFO] [stdout]    |
[INFO] [stdout] 73 |             Helper::display(vec![group].iter());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let _ = Helper::display(vec![group].iter());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/application.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |             Helper::display(students.iter());
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |             let _ = Helper::display(students.iter());
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2" "/opt/rustwide/cargo-home/bin/cargo" "+1.98.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Cell`, `Style`, and `print_stdout`
[INFO] [stdout] 
[INFO] [stderr]  --> src/models/topic.rs:6:34
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 6 | use cli_table::{format::Justify, print_stdout, Cell, Color, Style, Table};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   |                                  ^^^^^^^^^^^^  ^^^^         ^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `self` and `self`
[INFO] [stderr]  --> src/application.rs:7:17
[INFO] [stderr]   |
[INFO] [stderr] 7 |         group::{self, Group},
[INFO] [stderr]   |                 ^^^^
[INFO] [stderr] 8 |         student::{self, Student},
[INFO] [stderr]   |                   ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `GenDataDisplay` is never used
[INFO] [stderr]  --> src/traits/gen_data_display.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub trait GenDataDisplay {
[INFO] [stderr]   |           ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]  --> src/traits/gen_data_display.rs:1:8
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[warn(dead_code)]
[INFO] [stderr]   |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/application.rs:73:13
[INFO] [stderr]    |
[INFO] [stderr] 73 |             Helper::display(vec![group].iter());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 73 |             let _ = Helper::display(vec![group].iter());
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/application.rs:75:13
[INFO] [stderr]    |
[INFO] [stderr] 75 |             Helper::display(students.iter());
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 75 |             let _ = Helper::display(students.iter());
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `Groups` (bin "Groups" test) generated 5 warnings (run `cargo fix --bin "Groups" -p Groups --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/release/deps/Groups-8abd9479a483ad68)
[INFO] running `Command { std: "docker" "inspect" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2", kill_on_drop: false }`
[INFO] [stdout] a710f592f09d3ed8bcd8ed0b7eee125cc439f03ed08457d423c2fde7fb5586e2
