[INFO] cloning repository https://github.com/jw3/example-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jw3/example-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3%2Fexample-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3%2Fexample-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 951d631720ec939578f7c241a2e0f234a0098b39
[INFO] checking jw3/example-rust against try#b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f for pr-76104
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjw3%2Fexample-rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jw3/example-rust on toolchain b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jw3/example-rust
[INFO] finished tweaking git repo https://github.com/jw3/example-rust
[INFO] tweaked toml for git repo https://github.com/jw3/example-rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jw3/example-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot v0.6.2
[INFO] [stderr]   Downloaded crossbeam-channel v0.2.1
[INFO] [stderr]   Downloaded actix v0.7.0
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17075591a969b5ffd8595b2fa3ea3c946f5dcee84d5c92467e69b06d8039b3e0
[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" "17075591a969b5ffd8595b2fa3ea3c946f5dcee84d5c92467e69b06d8039b3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17075591a969b5ffd8595b2fa3ea3c946f5dcee84d5c92467e69b06d8039b3e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17075591a969b5ffd8595b2fa3ea3c946f5dcee84d5c92467e69b06d8039b3e0", kill_on_drop: false }`
[INFO] [stdout] 17075591a969b5ffd8595b2fa3ea3c946f5dcee84d5c92467e69b06d8039b3e0
[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=forbid" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+b1cc2963e8346ba1f5afb1edb86dbcf3f9ef0c5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83c344287557ec9fa29daa920f961a74f92c4a6cae42637323bfa9ce7c4f3c25
[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" "83c344287557ec9fa29daa920f961a74f92c4a6cae42637323bfa9ce7c4f3c25", kill_on_drop: false }`
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking slab v0.4.0
[INFO] [stderr]     Checking smallvec v0.6.2
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking stable_deref_trait v1.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking linked-hash-map v0.4.2
[INFO] [stderr]     Checking crossbeam-utils v0.4.1
[INFO] [stderr]     Checking arrayvec v0.4.7
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking hostname v0.1.5
[INFO] [stderr]     Checking socket2 v0.3.7
[INFO] [stderr]    Compiling actix_derive v0.2.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking resolv-conf v0.6.1
[INFO] [stderr]    Compiling dbghelp-sys v0.2.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking lock_api v0.1.3
[INFO] [stderr]     Checking tokio-io v0.1.7
[INFO] [stderr]     Checking mio v0.6.15
[INFO] [stderr]     Checking lru-cache v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]    Compiling backtrace v0.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.4.3
[INFO] [stderr]     Checking parking_lot v0.5.5
[INFO] [stderr]     Checking parking_lot v0.6.2
[INFO] [stderr]     Checking tokio-codec v0.1.0
[INFO] [stderr]     Checking error-chain v0.1.12
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking crossbeam-channel v0.2.1
[INFO] [stderr]     Checking tokio-threadpool v0.1.5
[INFO] [stderr]     Checking tokio-reactor v0.1.2
[INFO] [stderr]     Checking mio-uds v0.6.6
[INFO] [stderr]     Checking tokio-fs v0.1.1
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-udp v0.1.1
[INFO] [stderr]     Checking tokio-signal v0.2.1
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking trust-dns-proto v0.4.0
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking trust-dns-resolver v0.9.0
[INFO] [stderr]     Checking actix v0.7.0
[INFO] [stderr]     Checking example-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.00s
[INFO] running `Command { std: "docker" "inspect" "83c344287557ec9fa29daa920f961a74f92c4a6cae42637323bfa9ce7c4f3c25", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c344287557ec9fa29daa920f961a74f92c4a6cae42637323bfa9ce7c4f3c25", kill_on_drop: false }`
[INFO] [stdout] 83c344287557ec9fa29daa920f961a74f92c4a6cae42637323bfa9ce7c4f3c25