[INFO] cloning repository https://github.com/bazhenov/rust-coredump
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bazhenov/rust-coredump" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Frust-coredump", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Frust-coredump'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 125c7b502c1431b0d8de1737c537e65e4d23f006
[INFO] testing bazhenov/rust-coredump against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Frust-coredump" "/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/bazhenov/rust-coredump on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bazhenov/rust-coredump
[INFO] finished tweaking git repo https://github.com/bazhenov/rust-coredump
[INFO] tweaked toml for git repo https://github.com/bazhenov/rust-coredump written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/bazhenov/rust-coredump already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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] 4b472b4515ae2a76426e24bbcbc1664426b444a6f67fb8e50fb349475681a85d
[INFO] running `Command { std: "docker" "start" "-a" "4b472b4515ae2a76426e24bbcbc1664426b444a6f67fb8e50fb349475681a85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b472b4515ae2a76426e24bbcbc1664426b444a6f67fb8e50fb349475681a85d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b472b4515ae2a76426e24bbcbc1664426b444a6f67fb8e50fb349475681a85d", kill_on_drop: false }`
[INFO] [stdout] 4b472b4515ae2a76426e24bbcbc1664426b444a6f67fb8e50fb349475681a85d
[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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 123c70b0aac0c910c6d394e9d15b794d396873e4857eb139e84811119f443733
[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" "123c70b0aac0c910c6d394e9d15b794d396873e4857eb139e84811119f443733", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-debugging v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "123c70b0aac0c910c6d394e9d15b794d396873e4857eb139e84811119f443733", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "123c70b0aac0c910c6d394e9d15b794d396873e4857eb139e84811119f443733", kill_on_drop: false }`
[INFO] [stdout] 123c70b0aac0c910c6d394e9d15b794d396873e4857eb139e84811119f443733
[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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 72c8ad72a40916b4d96b162cad438ef42dbb31458ae2a7c47170cc0ac094ac83
[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" "72c8ad72a40916b4d96b162cad438ef42dbb31458ae2a7c47170cc0ac094ac83", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-debugging v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s_copy`
[INFO] [stdout]  --> examples/core-dump.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let s_copy = s.to_owned();
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_s_copy`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]  --> examples/core-dump.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let v = vec![1, 2, 3];
[INFO] [stdout]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "72c8ad72a40916b4d96b162cad438ef42dbb31458ae2a7c47170cc0ac094ac83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72c8ad72a40916b4d96b162cad438ef42dbb31458ae2a7c47170cc0ac094ac83", kill_on_drop: false }`
[INFO] [stdout] 72c8ad72a40916b4d96b162cad438ef42dbb31458ae2a7c47170cc0ac094ac83
[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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 012fc150d088ca9b065c41ebafc6e50f5462d813da6e78391ea6badee8fb0873
[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" "012fc150d088ca9b065c41ebafc6e50f5462d813da6e78391ea6badee8fb0873", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `s_copy`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> examples/core-dump.rs:5:9
[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] 5 |     let s_copy = s.to_owned();
[INFO] [stdout] 
[INFO] [stderr]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_s_copy`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]  --> examples/core-dump.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let v = vec![1, 2, 3];
[INFO] [stderr]   |         ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-debugging` (example "core-dump") generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_debugging-0a7e910523848c1d)
[INFO] running `Command { std: "docker" "inspect" "012fc150d088ca9b065c41ebafc6e50f5462d813da6e78391ea6badee8fb0873", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "012fc150d088ca9b065c41ebafc6e50f5462d813da6e78391ea6badee8fb0873", kill_on_drop: false }`
[INFO] [stdout] 012fc150d088ca9b065c41ebafc6e50f5462d813da6e78391ea6badee8fb0873