[INFO] fetching crate strife 0.3.0...
[INFO] testing strife-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate strife 0.3.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate strife 0.3.0 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 strife 0.3.0
[INFO] finished tweaking crates.io crate strife 0.3.0
[INFO] tweaked toml for crates.io crate strife 0.3.0 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate crates.io crate strife 0.3.0 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] c76f00b1337b7a91f22c35395635935a8138c3cf44c33e5580d875f53dfa7541
[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" "c76f00b1337b7a91f22c35395635935a8138c3cf44c33e5580d875f53dfa7541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c76f00b1337b7a91f22c35395635935a8138c3cf44c33e5580d875f53dfa7541", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c76f00b1337b7a91f22c35395635935a8138c3cf44c33e5580d875f53dfa7541", kill_on_drop: false }`
[INFO] [stdout] c76f00b1337b7a91f22c35395635935a8138c3cf44c33e5580d875f53dfa7541
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 24da0965d2f3caa1df96b6c526d366102af1c5b2fbd965a24c350ed01409a142
[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" "24da0965d2f3caa1df96b6c526d366102af1c5b2fbd965a24c350ed01409a142", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling bytes v0.5.3
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling pin-project-lite v0.1.1
[INFO] [stderr]    Compiling futures-core v0.3.1
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling futures-task v0.3.1
[INFO] [stderr]    Compiling futures-sink v0.3.1
[INFO] [stderr]    Compiling futures-io v0.3.1
[INFO] [stderr]    Compiling once_cell v1.2.0
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling async-task v1.0.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling kv-log-macro v1.0.4
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling futures-channel v0.3.1
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling http v0.2.0
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling async-std v1.3.0
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.9
[INFO] [stderr]    Compiling remain v0.2.0
[INFO] [stderr]    Compiling tokio v0.2.4
[INFO] [stderr]    Compiling thiserror v1.0.9
[INFO] [stderr]    Compiling pin-project v0.4.6
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling tokio-tls v0.3.0
[INFO] [stderr]    Compiling h2 v0.2.1
[INFO] [stderr]    Compiling hyper v0.13.0
[INFO] [stderr]    Compiling hyper-tls v0.4.0
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling chrono v0.4.9
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling proc-macro-crate v0.1.4
[INFO] [stderr]    Compiling int-enum-impl v0.3.0
[INFO] [stderr]    Compiling int-enum v0.3.0
[INFO] [stderr]    Compiling strife v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "24da0965d2f3caa1df96b6c526d366102af1c5b2fbd965a24c350ed01409a142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24da0965d2f3caa1df96b6c526d366102af1c5b2fbd965a24c350ed01409a142", kill_on_drop: false }`
[INFO] [stdout] 24da0965d2f3caa1df96b6c526d366102af1c5b2fbd965a24c350ed01409a142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 145b56c320043ca04193923b4b7c3aec4f9294a25133a05e25e1e2e2a05d6d2c
[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" "145b56c320043ca04193923b4b7c3aec4f9294a25133a05e25e1e2e2a05d6d2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-syntax v0.6.13
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling regex v1.3.3
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling pretty_env_logger v0.3.1
[INFO] [stderr]    Compiling strife v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `strife`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name current_user --edition=2018 examples/current_user.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' -C metadata=12d1f30cfe4126e8 -C extra-filename=-12d1f30cfe4126e8 --out-dir /opt/rustwide/target/debug/examples -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-c442a2d4c43fb9e8.rlib --extern async_std=/opt/rustwide/target/debug/deps/libasync_std-01b2b0934d5d511e.rlib --extern bitflags=/opt/rustwide/target/debug/deps/libbitflags-de31228f2c0549ed.rlib --extern bytes=/opt/rustwide/target/debug/deps/libbytes-b4b7428b4d516878.rlib --extern chrono=/opt/rustwide/target/debug/deps/libchrono-d2a57d8f6f341e90.rlib --extern futures_timer=/opt/rustwide/target/debug/deps/libfutures_timer-ba493ddc67337ea3.rlib --extern hyper=/opt/rustwide/target/debug/deps/libhyper-025b1e9a96400a0b.rlib --extern hyper_tls=/opt/rustwide/target/debug/deps/libhyper_tls-38559c8be7d0ca44.rlib --extern int_enum=/opt/rustwide/target/debug/deps/libint_enum-efd3c94673d19a06.rlib --extern log=/opt/rustwide/target/debug/deps/liblog-00e96ec619c243dd.rlib --extern num_traits=/opt/rustwide/target/debug/deps/libnum_traits-af042de286282d2a.rlib --extern pretty_env_logger=/opt/rustwide/target/debug/deps/libpretty_env_logger-ec9ca91157aebfbf.rlib --extern remain=/opt/rustwide/target/debug/deps/libremain-51b60240cb569a83.so --extern serde=/opt/rustwide/target/debug/deps/libserde-524842e0eae50f42.rlib --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-4929b85348efc52b.rlib --extern strife=/opt/rustwide/target/debug/deps/libstrife-2e9c54d676d138f0.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-b5424cc2d92169b4.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-d3f75b1bdb5759ae.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" "145b56c320043ca04193923b4b7c3aec4f9294a25133a05e25e1e2e2a05d6d2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145b56c320043ca04193923b4b7c3aec4f9294a25133a05e25e1e2e2a05d6d2c", kill_on_drop: false }`
[INFO] [stdout] 145b56c320043ca04193923b4b7c3aec4f9294a25133a05e25e1e2e2a05d6d2c