[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 beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbazhenov%2Frust-coredump" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bazhenov/rust-coredump on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "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-22/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" "+beta-2022-02-22" "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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b9eaa3ade4d4e74199d6d78195b90ca5f4c81a170023e6c34f29fd555f190f68
[INFO] running `Command { std: "docker" "start" "-a" "b9eaa3ade4d4e74199d6d78195b90ca5f4c81a170023e6c34f29fd555f190f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9eaa3ade4d4e74199d6d78195b90ca5f4c81a170023e6c34f29fd555f190f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9eaa3ade4d4e74199d6d78195b90ca5f4c81a170023e6c34f29fd555f190f68", kill_on_drop: false }`
[INFO] [stdout] b9eaa3ade4d4e74199d6d78195b90ca5f4c81a170023e6c34f29fd555f190f68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a77a81f04eaf53106507f189719200b01f8e7e85af927ca632e8f6f8d306e672
[INFO] running `Command { std: "docker" "start" "-a" "a77a81f04eaf53106507f189719200b01f8e7e85af927ca632e8f6f8d306e672", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-debugging v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "a77a81f04eaf53106507f189719200b01f8e7e85af927ca632e8f6f8d306e672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a77a81f04eaf53106507f189719200b01f8e7e85af927ca632e8f6f8d306e672", kill_on_drop: false }`
[INFO] [stdout] a77a81f04eaf53106507f189719200b01f8e7e85af927ca632e8f6f8d306e672
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f31ee02719798e0aa2bcf126b6b6dba5b8b3cd5278c3c88e0b4b8f93146da27
[INFO] running `Command { std: "docker" "start" "-a" "1f31ee02719798e0aa2bcf126b6b6dba5b8b3cd5278c3c88e0b4b8f93146da27", 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 0.74s
[INFO] running `Command { std: "docker" "inspect" "1f31ee02719798e0aa2bcf126b6b6dba5b8b3cd5278c3c88e0b4b8f93146da27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f31ee02719798e0aa2bcf126b6b6dba5b8b3cd5278c3c88e0b4b8f93146da27", kill_on_drop: false }`
[INFO] [stdout] 1f31ee02719798e0aa2bcf126b6b6dba5b8b3cd5278c3c88e0b4b8f93146da27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29fd36d24b696d943d11a13481adc0cf817017b1cf392ac253de3b49c553af82
[INFO] running `Command { std: "docker" "start" "-a" "29fd36d24b696d943d11a13481adc0cf817017b1cf392ac253de3b49c553af82", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s_copy`
[INFO] [stderr]  --> examples/core-dump.rs:5:9
[INFO] [stderr]   |
[INFO] [stderr] 5 |     let s_copy = s.to_owned();
[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 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_debugging-962011f6a7288d69)
[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" "29fd36d24b696d943d11a13481adc0cf817017b1cf392ac253de3b49c553af82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29fd36d24b696d943d11a13481adc0cf817017b1cf392ac253de3b49c553af82", kill_on_drop: false }`
[INFO] [stdout] 29fd36d24b696d943d11a13481adc0cf817017b1cf392ac253de3b49c553af82