[INFO] fetching crate numtostr 0.1.0...
[INFO] testing numtostr-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate numtostr 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate numtostr 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 numtostr 0.1.0
[INFO] finished tweaking crates.io crate numtostr 0.1.0
[INFO] tweaked toml for crates.io crate numtostr 0.1.0 written to /workspace/builds/worker-2/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-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ab91e91da515d8b57f7d7bf4bbbe8fe9f7c11c5133025154ba21b85cd0e6845
[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" "9ab91e91da515d8b57f7d7bf4bbbe8fe9f7c11c5133025154ba21b85cd0e6845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ab91e91da515d8b57f7d7bf4bbbe8fe9f7c11c5133025154ba21b85cd0e6845", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab91e91da515d8b57f7d7bf4bbbe8fe9f7c11c5133025154ba21b85cd0e6845", kill_on_drop: false }`
[INFO] [stdout] 9ab91e91da515d8b57f7d7bf4bbbe8fe9f7c11c5133025154ba21b85cd0e6845
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60ee4ab0d4d7b584fe6376f26daaadf5bec9d186fe9aeaa9546723aa7283f238
[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" "60ee4ab0d4d7b584fe6376f26daaadf5bec9d186fe9aeaa9546723aa7283f238", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtostr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "60ee4ab0d4d7b584fe6376f26daaadf5bec9d186fe9aeaa9546723aa7283f238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60ee4ab0d4d7b584fe6376f26daaadf5bec9d186fe9aeaa9546723aa7283f238", kill_on_drop: false }`
[INFO] [stdout] 60ee4ab0d4d7b584fe6376f26daaadf5bec9d186fe9aeaa9546723aa7283f238
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", 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] aff2d05bb1867e39b1ca9f0ec27b0d19c84fd5ec9d60150dfd4ef44d3b358626
[INFO] running `Command { std: "docker" "start" "-a" "aff2d05bb1867e39b1ca9f0ec27b0d19c84fd5ec9d60150dfd4ef44d3b358626", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtostr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "aff2d05bb1867e39b1ca9f0ec27b0d19c84fd5ec9d60150dfd4ef44d3b358626", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aff2d05bb1867e39b1ca9f0ec27b0d19c84fd5ec9d60150dfd4ef44d3b358626", kill_on_drop: false }`
[INFO] [stdout] aff2d05bb1867e39b1ca9f0ec27b0d19c84fd5ec9d60150dfd4ef44d3b358626
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27afff27b1641ff4188caad4184a9dfc6d0ff8a9cc953a244821f55dd2a25186
[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" "27afff27b1641ff4188caad4184a9dfc6d0ff8a9cc953a244821f55dd2a25186", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/numtostr-2bd4fb6bfc68394e
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::testz ... ok
[INFO] [stdout] test tests::testa ... ok
[INFO] [stdout] test tests::testdouble ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests numtostr
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "27afff27b1641ff4188caad4184a9dfc6d0ff8a9cc953a244821f55dd2a25186", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27afff27b1641ff4188caad4184a9dfc6d0ff8a9cc953a244821f55dd2a25186", kill_on_drop: false }`
[INFO] [stdout] 27afff27b1641ff4188caad4184a9dfc6d0ff8a9cc953a244821f55dd2a25186