[INFO] cloning repository https://github.com/rustkas/rust-101-impl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustkas/rust-101-impl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustkas%2Frust-101-impl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustkas%2Frust-101-impl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 613d00f4626de92ead3dc7534fc6f94a73e95cfb
[INFO] testing rustkas/rust-101-impl against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustkas%2Frust-101-impl" "/workspace/builds/worker-62/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-62/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustkas/rust-101-impl on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustkas/rust-101-impl
[INFO] finished tweaking git repo https://github.com/rustkas/rust-101-impl
[INFO] tweaked toml for git repo https://github.com/rustkas/rust-101-impl written to /workspace/builds/worker-62/source/Cargo.toml
[INFO] crate git repo https://github.com/rustkas/rust-101-impl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cd1cad594ef20e4c34df645307abd3fb6fd086f72b8785ef63350d43cdadc19
[INFO] running `Command { std: "docker" "start" "-a" "1cd1cad594ef20e4c34df645307abd3fb6fd086f72b8785ef63350d43cdadc19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cd1cad594ef20e4c34df645307abd3fb6fd086f72b8785ef63350d43cdadc19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd1cad594ef20e4c34df645307abd3fb6fd086f72b8785ef63350d43cdadc19", kill_on_drop: false }`
[INFO] [stdout] 1cd1cad594ef20e4c34df645307abd3fb6fd086f72b8785ef63350d43cdadc19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e820b716456a39aca72cf2746fe5727010ac043951dc08b4a5d51f112bc9cbb4
[INFO] running `Command { std: "docker" "start" "-a" "e820b716456a39aca72cf2746fe5727010ac043951dc08b4a5d51f112bc9cbb4", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-101 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `el`
[INFO] [stdout]   --> src/part0.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     for el in vec {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_el`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/part0.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Number(n) => {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/part0.rs:70:28
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn print_number_or_nothing(n: NumberOrNothing) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/part0.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut min = Nothing;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/part0.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Number(i32),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `min_i32`
[INFO] [stdout]   --> src/part0.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn min_i32(a: i32, b: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.73s
[INFO] running `Command { std: "docker" "inspect" "e820b716456a39aca72cf2746fe5727010ac043951dc08b4a5d51f112bc9cbb4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e820b716456a39aca72cf2746fe5727010ac043951dc08b4a5d51f112bc9cbb4", kill_on_drop: false }`
[INFO] [stdout] e820b716456a39aca72cf2746fe5727010ac043951dc08b4a5d51f112bc9cbb4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a37067624f778fb7abb53032cbd72fd24934c54c231022647b23a6a8d2ab8233
[INFO] running `Command { std: "docker" "start" "-a" "a37067624f778fb7abb53032cbd72fd24934c54c231022647b23a6a8d2ab8233", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-101 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `el`
[INFO] [stdout]   --> src/part0.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     for el in vec {
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_el`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/part0.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |             Number(n) => {
[INFO] [stdout]    |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]   --> src/part0.rs:70:28
[INFO] [stdout]    |
[INFO] [stdout] 70 | fn print_number_or_nothing(n: NumberOrNothing) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/part0.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut min = Nothing;
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Number`
[INFO] [stdout]   --> src/part0.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Number(i32),
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `min_i32`
[INFO] [stdout]   --> src/part0.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn min_i32(a: i32, b: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] [stderr]   Executable unittests src/part0.rs (/opt/rustwide/target/debug/deps/part0-1c4d88ed7b5b3cf5)
[INFO] [stderr]   Executable unittests src/part01.rs (/opt/rustwide/target/debug/deps/part01-325cca89285672c6)
[INFO] [stderr]   Executable unittests src/part02.rs (/opt/rustwide/target/debug/deps/part02-6f77a137605c8078)
[INFO] running `Command { std: "docker" "inspect" "a37067624f778fb7abb53032cbd72fd24934c54c231022647b23a6a8d2ab8233", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a37067624f778fb7abb53032cbd72fd24934c54c231022647b23a6a8d2ab8233", kill_on_drop: false }`
[INFO] [stdout] a37067624f778fb7abb53032cbd72fd24934c54c231022647b23a6a8d2ab8233
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-62/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76311a1af65fed044aa0306a38a427b2e295041c690ebb671b668c7ed92b1c4f
[INFO] running `Command { std: "docker" "start" "-a" "76311a1af65fed044aa0306a38a427b2e295041c690ebb671b668c7ed92b1c4f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `el`
[INFO] [stderr]   --> src/part0.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     for el in vec {
[INFO] [stderr]    |         ^^ help: if this is intentional, prefix it with an underscore: `_el`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/part0.rs:35:20
[INFO] [stderr]    |
[INFO] [stderr] 35 |             Number(n) => {
[INFO] [stderr]    |                    ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `n`
[INFO] [stderr]   --> src/part0.rs:70:28
[INFO] [stderr]    |
[INFO] [stderr] 70 | fn print_number_or_nothing(n: NumberOrNothing) {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/part0.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |     let mut min = Nothing;
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Number`
[INFO] [stderr]   --> src/part0.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Number(i32),
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `min_i32`
[INFO] [stderr]   --> src/part0.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn min_i32(a: i32, b: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-101` (bin "part0" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/part0.rs (/opt/rustwide/target/debug/deps/part0-1c4d88ed7b5b3cf5)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/part01.rs (/opt/rustwide/target/debug/deps/part01-325cca89285672c6)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/part02.rs (/opt/rustwide/target/debug/deps/part02-6f77a137605c8078)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76311a1af65fed044aa0306a38a427b2e295041c690ebb671b668c7ed92b1c4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76311a1af65fed044aa0306a38a427b2e295041c690ebb671b668c7ed92b1c4f", kill_on_drop: false }`
[INFO] [stdout] 76311a1af65fed044aa0306a38a427b2e295041c690ebb671b668c7ed92b1c4f