[INFO] fetching crate semver2 0.1.0...
[INFO] testing semver2-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate semver2 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate semver2 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 semver2 0.1.0
[INFO] finished tweaking crates.io crate semver2 0.1.0
[INFO] tweaked toml for crates.io crate semver2 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 8ec092df3d24e3cdec21445feb615aa5e46f1f5079f84ea69b3b862c09302159
[INFO] running `Command { std: "docker" "start" "-a" "8ec092df3d24e3cdec21445feb615aa5e46f1f5079f84ea69b3b862c09302159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ec092df3d24e3cdec21445feb615aa5e46f1f5079f84ea69b3b862c09302159", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ec092df3d24e3cdec21445feb615aa5e46f1f5079f84ea69b3b862c09302159", kill_on_drop: false }`
[INFO] [stdout] 8ec092df3d24e3cdec21445feb615aa5e46f1f5079f84ea69b3b862c09302159
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 372cd88f6fca619df84b4e78062b65c9c82c5238bb850cee35d92bae283f0c54
[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" "372cd88f6fca619df84b4e78062b65c9c82c5238bb850cee35d92bae283f0c54", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling omnom v2.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.23
[INFO] [stderr]    Compiling thiserror v1.0.23
[INFO] [stderr]    Compiling semver2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.62s
[INFO] running `Command { std: "docker" "inspect" "372cd88f6fca619df84b4e78062b65c9c82c5238bb850cee35d92bae283f0c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "372cd88f6fca619df84b4e78062b65c9c82c5238bb850cee35d92bae283f0c54", kill_on_drop: false }`
[INFO] [stdout] 372cd88f6fca619df84b4e78062b65c9c82c5238bb850cee35d92bae283f0c54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] e5e218de3d1024d7c2d7e0f154dee5f63e3b949b8dd4cbd7352aab3b47e85822
[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" "e5e218de3d1024d7c2d7e0f154dee5f63e3b949b8dd4cbd7352aab3b47e85822", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "e5e218de3d1024d7c2d7e0f154dee5f63e3b949b8dd4cbd7352aab3b47e85822", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5e218de3d1024d7c2d7e0f154dee5f63e3b949b8dd4cbd7352aab3b47e85822", kill_on_drop: false }`
[INFO] [stdout] e5e218de3d1024d7c2d7e0f154dee5f63e3b949b8dd4cbd7352aab3b47e85822
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] 34169d7207d688c00788c468645de6fbda31633bd4aa9860d0eb5717aaf55c87
[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" "34169d7207d688c00788c468645de6fbda31633bd4aa9860d0eb5717aaf55c87", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/semver2-45e945b08d6bf012
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test version::tests::invalid_versions ... ok
[INFO] [stdout] test version::tests::display ... ok
[INFO] [stdout] test version::tests::loose_versions ... ok
[INFO] [stdout] test version::tests::simple_parsing ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests semver2
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/version.rs - version::Version::new_build (line 127) ... ok
[INFO] [stdout] test src/version.rs - version::Version::new (line 90) ... ok
[INFO] [stdout] test src/version.rs - version::Version::new_prerelease (line 107) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34169d7207d688c00788c468645de6fbda31633bd4aa9860d0eb5717aaf55c87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34169d7207d688c00788c468645de6fbda31633bd4aa9860d0eb5717aaf55c87", kill_on_drop: false }`
[INFO] [stdout] 34169d7207d688c00788c468645de6fbda31633bd4aa9860d0eb5717aaf55c87