[INFO] cloning repository https://github.com/mbiti2/group-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mbiti2/group-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbiti2%2Fgroup-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbiti2%2Fgroup-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3987301771add9640db64de7030e26284de662d1
[INFO] checking mbiti2/group-generator against try#987a165cfab916796a8315782b83ac460a651ce2 for pr-145262
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmbiti2%2Fgroup-generator" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mbiti2/group-generator
[INFO] finished tweaking git repo https://github.com/mbiti2/group-generator
[INFO] tweaked toml for git repo https://github.com/mbiti2/group-generator written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mbiti2/group-generator on toolchain 987a165cfab916796a8315782b83ac460a651ce2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mbiti2/group-generator 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" "+987a165cfab916796a8315782b83ac460a651ce2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d50ebbb21d5da26212916da4f55d48c0b4ee9fd72b542bd0e33909fd3561d3f
[INFO] running `Command { std: "docker" "start" "-a" "8d50ebbb21d5da26212916da4f55d48c0b4ee9fd72b542bd0e33909fd3561d3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d50ebbb21d5da26212916da4f55d48c0b4ee9fd72b542bd0e33909fd3561d3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d50ebbb21d5da26212916da4f55d48c0b4ee9fd72b542bd0e33909fd3561d3f", kill_on_drop: false }`
[INFO] [stdout] 8d50ebbb21d5da26212916da4f55d48c0b4ee9fd72b542bd0e33909fd3561d3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+987a165cfab916796a8315782b83ac460a651ce2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 972014b1f42f09c838ed1772e5c68f4a61981fa8c4934884e190dec34dd54258
[INFO] running `Command { std: "docker" "start" "-a" "972014b1f42f09c838ed1772e5c68f4a61981fa8c4934884e190dec34dd54258", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.17
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling zerocopy v0.8.18
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking ryu v1.0.19
[INFO] [stderr]     Checking termcolor v1.4.1
[INFO] [stderr]     Checking unicode-width v0.1.14
[INFO] [stderr]     Checking csv-core v0.1.12
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking rand_core v0.9.1
[INFO] [stderr]     Checking csv v1.3.1
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling cli-table-derive v0.4.6
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking cli-table v0.4.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking group-generator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]   --> src/application.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         group::{self, Group},
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 11 |         student::{self, Student},
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/enums/difficulty.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{write, Display};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `self` and `self`
[INFO] [stdout]   --> src/application.rs:10:17
[INFO] [stdout]    |
[INFO] [stdout] 10 |         group::{self, Group},
[INFO] [stdout]    |                 ^^^^
[INFO] [stdout] 11 |         student::{self, Student},
[INFO] [stdout]    |                   ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `write`
[INFO] [stdout]  --> src/enums/difficulty.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fmt::{write, Display};
[INFO] [stdout]   |                ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GenDataDisplay` is never used
[INFO] [stdout]  --> src/traits/gen_data_display.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait GenDataDisplay {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `GenDataDisplay` is never used
[INFO] [stdout]  --> src/traits/gen_data_display.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait GenDataDisplay {
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.89s
[INFO] running `Command { std: "docker" "inspect" "972014b1f42f09c838ed1772e5c68f4a61981fa8c4934884e190dec34dd54258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "972014b1f42f09c838ed1772e5c68f4a61981fa8c4934884e190dec34dd54258", kill_on_drop: false }`
[INFO] [stdout] 972014b1f42f09c838ed1772e5c68f4a61981fa8c4934884e190dec34dd54258