[INFO] updating cached repository https://github.com/motorox/graphic_loops
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5ec22807a6bb55bbc9261a176717f92d9ba084f3
[INFO] testing motorox/graphic_loops/5ec22807a6bb55bbc9261a176717f92d9ba084f3 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%2Fmotorox%2Fgraphic_loops" "/workspace/builds/worker-21/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-21/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/motorox/graphic_loops 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/motorox/graphic_loops
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/motorox/graphic_loops
[INFO] tweaked toml for git repo https://github.com/motorox/graphic_loops written to /workspace/builds/worker-21/source/Cargo.toml
[INFO] crate git repo https://github.com/motorox/graphic_loops 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 8f5f28bfd7bc7dc2b4dcc2293e3ac5bc13212accf7f323282907f2736581ba1c
[INFO] running `Command { std: "docker" "start" "-a" "8f5f28bfd7bc7dc2b4dcc2293e3ac5bc13212accf7f323282907f2736581ba1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f5f28bfd7bc7dc2b4dcc2293e3ac5bc13212accf7f323282907f2736581ba1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5f28bfd7bc7dc2b4dcc2293e3ac5bc13212accf7f323282907f2736581ba1c", kill_on_drop: false }`
[INFO] [stdout] 8f5f28bfd7bc7dc2b4dcc2293e3ac5bc13212accf7f323282907f2736581ba1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 404ca42dc4cfddcd1f41ebe001e3b89d2305c17443482140a707ef16bd12180d
[INFO] running `Command { std: "docker" "start" "-a" "404ca42dc4cfddcd1f41ebe001e3b89d2305c17443482140a707ef16bd12180d", kill_on_drop: false }`
[INFO] [stderr]    Compiling graphic_loops v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.89s
[INFO] running `Command { std: "docker" "inspect" "404ca42dc4cfddcd1f41ebe001e3b89d2305c17443482140a707ef16bd12180d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "404ca42dc4cfddcd1f41ebe001e3b89d2305c17443482140a707ef16bd12180d", kill_on_drop: false }`
[INFO] [stdout] 404ca42dc4cfddcd1f41ebe001e3b89d2305c17443482140a707ef16bd12180d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 7e2fd7ca86a9f27a86f6828a0381cd6bd24b5581726afc5b0624208f5f8db0d9
[INFO] running `Command { std: "docker" "start" "-a" "7e2fd7ca86a9f27a86f6828a0381cd6bd24b5581726afc5b0624208f5f8db0d9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling graphic_loops v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ops::Range`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::ops::Range;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]   --> src/floyd_triangle.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |         for j in 0 .. i {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/graphic_loops-79aa2d6d8cca9bfc)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/graphic_loops-b6884ea8dbe86e3c)
[INFO] running `Command { std: "docker" "inspect" "7e2fd7ca86a9f27a86f6828a0381cd6bd24b5581726afc5b0624208f5f8db0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e2fd7ca86a9f27a86f6828a0381cd6bd24b5581726afc5b0624208f5f8db0d9", kill_on_drop: false }`
[INFO] [stdout] 7e2fd7ca86a9f27a86f6828a0381cd6bd24b5581726afc5b0624208f5f8db0d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-21/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] 79285ca0ee4a1fe46342b6a1bc666f6c6c878c0b01a5ff75364843fb5fad2d69
[INFO] running `Command { std: "docker" "start" "-a" "79285ca0ee4a1fe46342b6a1bc666f6c6c878c0b01a5ff75364843fb5fad2d69", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stdout] running 2 tests
[INFO] [stderr]   --> src/floyd_triangle.rs:10:13
[INFO] [stdout] test test_factorial ... ok
[INFO] [stderr]    |
[INFO] [stdout] test test_odd_vals ... ok
[INFO] [stderr] 10 |         for j in 0 .. i {
[INFO] [stdout] 
[INFO] [stderr]    |             ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] running 0 tests
[INFO] [stderr] warning: `graphic_loops` (example "floyd") generated 1 warning
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]  --> src/main.rs:1:5
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] 
[INFO] [stderr] 1 | use std::io;
[INFO] [stdout] running 0 tests
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::Range`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::Range;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `graphic_loops` (bin "graphic_loops" test) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/graphic_loops-79aa2d6d8cca9bfc)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/graphic_loops-b6884ea8dbe86e3c)
[INFO] [stderr]    Doc-tests graphic_loops
[INFO] running `Command { std: "docker" "inspect" "79285ca0ee4a1fe46342b6a1bc666f6c6c878c0b01a5ff75364843fb5fad2d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79285ca0ee4a1fe46342b6a1bc666f6c6c878c0b01a5ff75364843fb5fad2d69", kill_on_drop: false }`
[INFO] [stdout] 79285ca0ee4a1fe46342b6a1bc666f6c6c878c0b01a5ff75364843fb5fad2d69