[INFO] fetching crate wstr_impl 0.2.0...
[INFO] testing wstr_impl-0.2.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate wstr_impl 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate wstr_impl 0.2.0 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 wstr_impl 0.2.0
[INFO] finished tweaking crates.io crate wstr_impl 0.2.0
[INFO] tweaked toml for crates.io crate wstr_impl 0.2.0 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] 469fd7475bb42e3858f6ba5785730a79dcc4bff308a75ab13ee3a2e0ead06c2a
[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" "469fd7475bb42e3858f6ba5785730a79dcc4bff308a75ab13ee3a2e0ead06c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "469fd7475bb42e3858f6ba5785730a79dcc4bff308a75ab13ee3a2e0ead06c2a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "469fd7475bb42e3858f6ba5785730a79dcc4bff308a75ab13ee3a2e0ead06c2a", kill_on_drop: false }`
[INFO] [stdout] 469fd7475bb42e3858f6ba5785730a79dcc4bff308a75ab13ee3a2e0ead06c2a
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e9cefe297334186dceafb147710b31a9acd6d0c0c15d62065e7f6edaf3cb32bf
[INFO] running `Command { std: "docker" "start" "-a" "e9cefe297334186dceafb147710b31a9acd6d0c0c15d62065e7f6edaf3cb32bf", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.3.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling proc-macro-hack v0.3.3
[INFO] [stderr]    Compiling wstr_impl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.88s
[INFO] running `Command { std: "docker" "inspect" "e9cefe297334186dceafb147710b31a9acd6d0c0c15d62065e7f6edaf3cb32bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9cefe297334186dceafb147710b31a9acd6d0c0c15d62065e7f6edaf3cb32bf", kill_on_drop: false }`
[INFO] [stdout] e9cefe297334186dceafb147710b31a9acd6d0c0c15d62065e7f6edaf3cb32bf
[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] [stdout] 32cbcb1dfb7feff47c6ed8d1e84a881a9d16c58de47995d3db93d3c66bb31e0c
[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" "32cbcb1dfb7feff47c6ed8d1e84a881a9d16c58de47995d3db93d3c66bb31e0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling wstr_impl v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "32cbcb1dfb7feff47c6ed8d1e84a881a9d16c58de47995d3db93d3c66bb31e0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32cbcb1dfb7feff47c6ed8d1e84a881a9d16c58de47995d3db93d3c66bb31e0c", kill_on_drop: false }`
[INFO] [stdout] 32cbcb1dfb7feff47c6ed8d1e84a881a9d16c58de47995d3db93d3c66bb31e0c
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 06c7916989d90b323966db390875e860af2d67a2a2a3371dc3977a152a0c05cb
[INFO] running `Command { std: "docker" "start" "-a" "06c7916989d90b323966db390875e860af2d67a2a2a3371dc3977a152a0c05cb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/wstr_impl-48336ab5d826e518
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests wstr_impl
[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] [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" "06c7916989d90b323966db390875e860af2d67a2a2a3371dc3977a152a0c05cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06c7916989d90b323966db390875e860af2d67a2a2a3371dc3977a152a0c05cb", kill_on_drop: false }`
[INFO] [stdout] 06c7916989d90b323966db390875e860af2d67a2a2a3371dc3977a152a0c05cb