[INFO] cloning repository https://github.com/taegyunkim/unsigned
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/taegyunkim/unsigned" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaegyunkim%2Funsigned", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaegyunkim%2Funsigned'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a8f2b7d5b82c09f3be3757d381abe3f7d581ead
[INFO] testing taegyunkim/unsigned against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftaegyunkim%2Funsigned" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/taegyunkim/unsigned on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/taegyunkim/unsigned
[INFO] finished tweaking git repo https://github.com/taegyunkim/unsigned
[INFO] tweaked toml for git repo https://github.com/taegyunkim/unsigned written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/taegyunkim/unsigned already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 5e2ec5b6e8d6b789e0503d3265da8304b38eacadb1c1ffb84f0f88251bf2659e
[INFO] running `Command { std: "docker" "start" "-a" "5e2ec5b6e8d6b789e0503d3265da8304b38eacadb1c1ffb84f0f88251bf2659e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e2ec5b6e8d6b789e0503d3265da8304b38eacadb1c1ffb84f0f88251bf2659e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e2ec5b6e8d6b789e0503d3265da8304b38eacadb1c1ffb84f0f88251bf2659e", kill_on_drop: false }`
[INFO] [stdout] 5e2ec5b6e8d6b789e0503d3265da8304b38eacadb1c1ffb84f0f88251bf2659e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] cea9fe1fd256b1222aab504f9f59c62a38b1a0974d42f5710b84e490e92271f6
[INFO] running `Command { std: "docker" "start" "-a" "cea9fe1fd256b1222aab504f9f59c62a38b1a0974d42f5710b84e490e92271f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsigned v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: this arithmetic operation will overflow
[INFO] [stdout]  --> src/main.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 |     let c: u8 = a + b;
[INFO] [stdout]   |                 ^^^^^ attempt to compute `128_u8 + 128_u8`, which would overflow
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(arithmetic_overflow)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "cea9fe1fd256b1222aab504f9f59c62a38b1a0974d42f5710b84e490e92271f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cea9fe1fd256b1222aab504f9f59c62a38b1a0974d42f5710b84e490e92271f6", kill_on_drop: false }`
[INFO] [stdout] cea9fe1fd256b1222aab504f9f59c62a38b1a0974d42f5710b84e490e92271f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01c8d96681abaa5dd3695b6ea3bab3cb068b8f7e34dbf020be6f20047be3d889
[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" "01c8d96681abaa5dd3695b6ea3bab3cb068b8f7e34dbf020be6f20047be3d889", kill_on_drop: false }`
[INFO] [stderr]    Compiling unsigned v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "01c8d96681abaa5dd3695b6ea3bab3cb068b8f7e34dbf020be6f20047be3d889", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01c8d96681abaa5dd3695b6ea3bab3cb068b8f7e34dbf020be6f20047be3d889", kill_on_drop: false }`
[INFO] [stdout] 01c8d96681abaa5dd3695b6ea3bab3cb068b8f7e34dbf020be6f20047be3d889
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] c9e279c2dad717db25d6e3240cc777a4dafa43333b75445fd69d88f9ce4854da
[INFO] running `Command { std: "docker" "start" "-a" "c9e279c2dad717db25d6e3240cc777a4dafa43333b75445fd69d88f9ce4854da", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/unsigned-9b11968ef9ae6ec8
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c9e279c2dad717db25d6e3240cc777a4dafa43333b75445fd69d88f9ce4854da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9e279c2dad717db25d6e3240cc777a4dafa43333b75445fd69d88f9ce4854da", kill_on_drop: false }`
[INFO] [stdout] c9e279c2dad717db25d6e3240cc777a4dafa43333b75445fd69d88f9ce4854da