[INFO] fetching crate mockall 0.9.0...
[INFO] testing mockall-0.9.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate mockall 0.9.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate mockall 0.9.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mockall 0.9.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mockall 0.9.0
[INFO] tweaked toml for crates.io crate mockall 0.9.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate mockall 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mockall_double v0.2.0
[INFO] [stderr]   Downloaded mockall_derive v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c892e3ac71a86d793f3f85a83313b97181057e22ea030290541b0f1bf22daf3e
[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" "c892e3ac71a86d793f3f85a83313b97181057e22ea030290541b0f1bf22daf3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c892e3ac71a86d793f3f85a83313b97181057e22ea030290541b0f1bf22daf3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c892e3ac71a86d793f3f85a83313b97181057e22ea030290541b0f1bf22daf3e", kill_on_drop: false }`
[INFO] [stdout] c892e3ac71a86d793f3f85a83313b97181057e22ea030290541b0f1bf22daf3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4132b181dde4bc029a14a495c53d35b9f8a312b5791a89bf86eb45ee0bb7154
[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" "f4132b181dde4bc029a14a495c53d35b9f8a312b5791a89bf86eb45ee0bb7154", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling downcast v0.10.0
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling predicates v1.0.5
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling mockall_derive v0.9.0
[INFO] [stderr]    Compiling mockall v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.18s
[INFO] running `Command { std: "docker" "inspect" "f4132b181dde4bc029a14a495c53d35b9f8a312b5791a89bf86eb45ee0bb7154", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4132b181dde4bc029a14a495c53d35b9f8a312b5791a89bf86eb45ee0bb7154", kill_on_drop: false }`
[INFO] [stdout] f4132b181dde4bc029a14a495c53d35b9f8a312b5791a89bf86eb45ee0bb7154
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d14dab76f95830ceff4172e521518d28006068edf0b92e1bd26d025c5d1c87fd
[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" "d14dab76f95830ceff4172e521518d28006068edf0b92e1bd26d025c5d1c87fd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-sink v0.3.8
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling mockall_double v0.2.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling futures-channel v0.3.8
[INFO] [stderr]    Compiling pin-project v1.0.2
[INFO] [stderr]    Compiling futures-util v0.3.8
[INFO] [stderr]    Compiling futures-executor v0.3.8
[INFO] [stderr]    Compiling futures v0.3.8
[INFO] [stderr]    Compiling mockall v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `mockall`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name automock_generic_arguments --edition=2018 tests/automock_generic_arguments.rs --error-format=json --json=diagnostic-rendered-ansi --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test -C metadata=e09e4ef25c0de016 -C extra-filename=-e09e4ef25c0de016 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-dd86a647031d75e3.so --extern cfg_if=/opt/rustwide/target/debug/deps/libcfg_if-d82520db93b55397.rlib --extern downcast=/opt/rustwide/target/debug/deps/libdowncast-4599b6a9a7e6de12.rlib --extern fragile=/opt/rustwide/target/debug/deps/libfragile-71879589c84b8305.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-16a929fd47e7e5bd.rlib --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b2d06f7d60fcbb27.rlib --extern mockall=/opt/rustwide/target/debug/deps/libmockall-28babf61aa47b37f.rlib --extern mockall_derive=/opt/rustwide/target/debug/deps/libmockall_derive-c974689a4293227a.so --extern mockall_double=/opt/rustwide/target/debug/deps/libmockall_double-f69e65315e432582.so --extern predicates=/opt/rustwide/target/debug/deps/libpredicates-a7fb564624017819.rlib --extern predicates_tree=/opt/rustwide/target/debug/deps/libpredicates_tree-8eb88a7d9c8135b8.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-b87c66e89357a9f0.rlib --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-fa57b43455fc89ed.so --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-0fcb84d58dd513bf.rlib --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d14dab76f95830ceff4172e521518d28006068edf0b92e1bd26d025c5d1c87fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d14dab76f95830ceff4172e521518d28006068edf0b92e1bd26d025c5d1c87fd", kill_on_drop: false }`
[INFO] [stdout] d14dab76f95830ceff4172e521518d28006068edf0b92e1bd26d025c5d1c87fd