[INFO] fetching crate crt0stack 0.1.0...
[INFO] testing crt0stack-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate crt0stack 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate crt0stack 0.1.0 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 crates.io crate crt0stack 0.1.0
[INFO] finished tweaking crates.io crate crt0stack 0.1.0
[INFO] tweaked toml for crates.io crate crt0stack 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate crt0stack 0.1.0 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-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65788c897085dc654aaa5653946cbd1bbe0aca0775738c4d700b660282e92fbf
[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" "65788c897085dc654aaa5653946cbd1bbe0aca0775738c4d700b660282e92fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65788c897085dc654aaa5653946cbd1bbe0aca0775738c4d700b660282e92fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65788c897085dc654aaa5653946cbd1bbe0aca0775738c4d700b660282e92fbf", kill_on_drop: false }`
[INFO] [stdout] 65788c897085dc654aaa5653946cbd1bbe0aca0775738c4d700b660282e92fbf
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05f20eb68401e2545858a8f9727d4cc02516c438c20a8c450dbf2486782fbb02
[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" "05f20eb68401e2545858a8f9727d4cc02516c438c20a8c450dbf2486782fbb02", kill_on_drop: false }`
[INFO] [stderr]    Compiling crt0stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "05f20eb68401e2545858a8f9727d4cc02516c438c20a8c450dbf2486782fbb02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05f20eb68401e2545858a8f9727d4cc02516c438c20a8c450dbf2486782fbb02", kill_on_drop: false }`
[INFO] [stdout] 05f20eb68401e2545858a8f9727d4cc02516c438c20a8c450dbf2486782fbb02
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 327da248c4bf36cbd35e082e0ea36eaffe0bb997a162d75dcbb1efdade59087d
[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" "327da248c4bf36cbd35e082e0ea36eaffe0bb997a162d75dcbb1efdade59087d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crt0stack v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.45s
[INFO] running `Command { std: "docker" "inspect" "327da248c4bf36cbd35e082e0ea36eaffe0bb997a162d75dcbb1efdade59087d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "327da248c4bf36cbd35e082e0ea36eaffe0bb997a162d75dcbb1efdade59087d", kill_on_drop: false }`
[INFO] [stdout] 327da248c4bf36cbd35e082e0ea36eaffe0bb997a162d75dcbb1efdade59087d
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 44f996cb864b5c95ad078e91b271f3e318d547c4f157ebe65cd0a6750dbc69fb
[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" "44f996cb864b5c95ad078e91b271f3e318d547c4f157ebe65cd0a6750dbc69fb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/crt0stack-e9c4a78d568f537f
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test reader::tests::unknown ... ok
[INFO] [stdout] test reader::tests::skip ... ok
[INFO] [stdout] test reader::tests::real ... ok
[INFO] [stdout] test reader::tests::normal ... ok
[INFO] [stdout] test builder::tests::stack_unaligned ... ok
[INFO] [stdout] test builder::tests::builder ... ok
[INFO] [stdout] test builder::tests::stack_alignment ... ok
[INFO] [stdout] test builder::tests::stack ... ok
[INFO] [stdout] test builder::tests::stack_pop ... ok
[INFO] [stdout] test builder::tests::stack_slice ... ok
[INFO] [stderr]    Doc-tests crt0stack
[INFO] [stdout] test builder::tests::stack_overflow ... ok
[INFO] [stdout] test builder::tests::stack_underflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/builder.rs - builder::Builder (line 70) ... ok
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "44f996cb864b5c95ad078e91b271f3e318d547c4f157ebe65cd0a6750dbc69fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44f996cb864b5c95ad078e91b271f3e318d547c4f157ebe65cd0a6750dbc69fb", kill_on_drop: false }`
[INFO] [stdout] 44f996cb864b5c95ad078e91b271f3e318d547c4f157ebe65cd0a6750dbc69fb