[INFO] cloning repository https://github.com/Eson-Jia/linking-to-sys-libs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Eson-Jia/linking-to-sys-libs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Flinking-to-sys-libs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Flinking-to-sys-libs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb379f7a4c2a11570e5b91fdc86dbf9bfe92aec8
[INFO] testing Eson-Jia/linking-to-sys-libs against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEson-Jia%2Flinking-to-sys-libs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Eson-Jia/linking-to-sys-libs on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Eson-Jia/linking-to-sys-libs
[INFO] finished tweaking git repo https://github.com/Eson-Jia/linking-to-sys-libs
[INFO] tweaked toml for git repo https://github.com/Eson-Jia/linking-to-sys-libs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Eson-Jia/linking-to-sys-libs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 447df64187e591416dfc78a1878ead78d365b0c06347db42c571cf27506211e6
[INFO] running `Command { std: "docker" "start" "-a" "447df64187e591416dfc78a1878ead78d365b0c06347db42c571cf27506211e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "447df64187e591416dfc78a1878ead78d365b0c06347db42c571cf27506211e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "447df64187e591416dfc78a1878ead78d365b0c06347db42c571cf27506211e6", kill_on_drop: false }`
[INFO] [stdout] 447df64187e591416dfc78a1878ead78d365b0c06347db42c571cf27506211e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 156d9f4aec2f2c889f29752425d46f727269efeb9b6fbe5364de9e7329a194d9
[INFO] running `Command { std: "docker" "start" "-a" "156d9f4aec2f2c889f29752425d46f727269efeb9b6fbe5364de9e7329a194d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling linking-to-sys-libs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_crc32`
[INFO] [stdout]  --> src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn test_crc32() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` 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 1.19s
[INFO] running `Command { std: "docker" "inspect" "156d9f4aec2f2c889f29752425d46f727269efeb9b6fbe5364de9e7329a194d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "156d9f4aec2f2c889f29752425d46f727269efeb9b6fbe5364de9e7329a194d9", kill_on_drop: false }`
[INFO] [stdout] 156d9f4aec2f2c889f29752425d46f727269efeb9b6fbe5364de9e7329a194d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e934d79b36e618ba21783f800c605d1156f94aaa0a922344b3f5c3d318faf8db
[INFO] running `Command { std: "docker" "start" "-a" "e934d79b36e618ba21783f800c605d1156f94aaa0a922344b3f5c3d318faf8db", kill_on_drop: false }`
[INFO] [stderr]    Compiling linking-to-sys-libs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `test_crc32`
[INFO] [stdout]  --> src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn test_crc32() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_crc32`
[INFO] [stdout]  --> src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn test_crc32() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "e934d79b36e618ba21783f800c605d1156f94aaa0a922344b3f5c3d318faf8db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e934d79b36e618ba21783f800c605d1156f94aaa0a922344b3f5c3d318faf8db", kill_on_drop: false }`
[INFO] [stdout] e934d79b36e618ba21783f800c605d1156f94aaa0a922344b3f5c3d318faf8db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 29835c31d5bd7863f9e426f742f8fa3944b13b16626ff243fefbd0e8eb07193c
[INFO] running `Command { std: "docker" "start" "-a" "29835c31d5bd7863f9e426f742f8fa3944b13b16626ff243fefbd0e8eb07193c", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `test_crc32`
[INFO] [stderr]  --> src/lib.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn test_crc32() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `linking-to-sys-libs` (lib) generated 1 warning
[INFO] [stderr] warning: `linking-to-sys-libs` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linking_to_sys_libs-dd76e4e34ed6fa58)
[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] [stderr]    Doc-tests linking-to-sys-libs
[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" "29835c31d5bd7863f9e426f742f8fa3944b13b16626ff243fefbd0e8eb07193c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29835c31d5bd7863f9e426f742f8fa3944b13b16626ff243fefbd0e8eb07193c", kill_on_drop: false }`
[INFO] [stdout] 29835c31d5bd7863f9e426f742f8fa3944b13b16626ff243fefbd0e8eb07193c