[INFO] cloning repository https://github.com/Loptall/brainfuck
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Loptall/brainfuck" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoptall%2Fbrainfuck", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoptall%2Fbrainfuck'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c0a248737e4a1aaad689e31729337c580d64cc23
[INFO] testing Loptall/brainfuck against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLoptall%2Fbrainfuck" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Loptall/brainfuck on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Loptall/brainfuck
[INFO] finished tweaking git repo https://github.com/Loptall/brainfuck
[INFO] tweaked toml for git repo https://github.com/Loptall/brainfuck written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Loptall/brainfuck already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 53aa972d4a3b6c8c1b3d31e3fb48dce11ec1931e56ded3be986bc136ce8a4043
[INFO] running `Command { std: "docker" "start" "-a" "53aa972d4a3b6c8c1b3d31e3fb48dce11ec1931e56ded3be986bc136ce8a4043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "53aa972d4a3b6c8c1b3d31e3fb48dce11ec1931e56ded3be986bc136ce8a4043", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53aa972d4a3b6c8c1b3d31e3fb48dce11ec1931e56ded3be986bc136ce8a4043", kill_on_drop: false }`
[INFO] [stdout] 53aa972d4a3b6c8c1b3d31e3fb48dce11ec1931e56ded3be986bc136ce8a4043
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f2e1d528fe5cbd47f5591e728e6e75be938ae89a6ee2d8dc58faad9947e71f08
[INFO] running `Command { std: "docker" "start" "-a" "f2e1d528fe5cbd47f5591e728e6e75be938ae89a6ee2d8dc58faad9947e71f08", kill_on_drop: false }`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `StdinLock` that must be used
[INFO] [stdout]   --> src/buffer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         h.lock();
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if unused stdin will immediately unlock
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "f2e1d528fe5cbd47f5591e728e6e75be938ae89a6ee2d8dc58faad9947e71f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2e1d528fe5cbd47f5591e728e6e75be938ae89a6ee2d8dc58faad9947e71f08", kill_on_drop: false }`
[INFO] [stdout] f2e1d528fe5cbd47f5591e728e6e75be938ae89a6ee2d8dc58faad9947e71f08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10e6f02608d1f50ed720a7b249deed6e3cb928b1a642b9e60e99d315517e327c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "10e6f02608d1f50ed720a7b249deed6e3cb928b1a642b9e60e99d315517e327c", kill_on_drop: false }`
[INFO] [stderr]    Compiling brainfuck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `StdinLock` that must be used
[INFO] [stdout]   --> src/buffer.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |         h.lock();
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if unused stdin will immediately unlock
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "10e6f02608d1f50ed720a7b249deed6e3cb928b1a642b9e60e99d315517e327c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10e6f02608d1f50ed720a7b249deed6e3cb928b1a642b9e60e99d315517e327c", kill_on_drop: false }`
[INFO] [stdout] 10e6f02608d1f50ed720a7b249deed6e3cb928b1a642b9e60e99d315517e327c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4ef05862427b08232ccc9eba7228b6373f0b42c7039feeffaa9324e9c5bfbf1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e4ef05862427b08232ccc9eba7228b6373f0b42c7039feeffaa9324e9c5bfbf1", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `StdinLock` that must be used
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/buffer.rs:52:9
[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] 52 |         h.lock();
[INFO] [stdout] 
[INFO] [stderr]    |         ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: if unused stdin will immediately unlock
[INFO] [stderr] 
[INFO] [stderr] warning: `brainfuck` (bin "brainfuck" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/brainfuck-f21664e7c2a79229)
[INFO] running `Command { std: "docker" "inspect" "e4ef05862427b08232ccc9eba7228b6373f0b42c7039feeffaa9324e9c5bfbf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ef05862427b08232ccc9eba7228b6373f0b42c7039feeffaa9324e9c5bfbf1", kill_on_drop: false }`
[INFO] [stdout] e4ef05862427b08232ccc9eba7228b6373f0b42c7039feeffaa9324e9c5bfbf1