[INFO] fetching crate flowstdlib 0.8.9...
[INFO] checking flowstdlib-0.8.9 against try#894d32a5432c6a6461bb2aac7c3d5f2e87dce83f for pr-77015
[INFO] extracting crate flowstdlib 0.8.9 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate flowstdlib 0.8.9 on toolchain 894d32a5432c6a6461bb2aac7c3d5f2e87dce83f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate flowstdlib 0.8.9
[INFO] finished tweaking crates.io crate flowstdlib 0.8.9
[INFO] tweaked toml for crates.io crate flowstdlib 0.8.9 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flow_impl v0.8.5
[INFO] [stderr]   Downloaded flowrlib v0.8.8
[INFO] [stderr]   Downloaded multimap v0.5.0
[INFO] [stderr]   Downloaded flow_impl_derive v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91ae71094deb19ba30425a2573df69baf19377eb5b8ec1f2b9c1764b23cd8ccb
[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" "91ae71094deb19ba30425a2573df69baf19377eb5b8ec1f2b9c1764b23cd8ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91ae71094deb19ba30425a2573df69baf19377eb5b8ec1f2b9c1764b23cd8ccb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91ae71094deb19ba30425a2573df69baf19377eb5b8ec1f2b9c1764b23cd8ccb", kill_on_drop: false }`
[INFO] [stdout] 91ae71094deb19ba30425a2573df69baf19377eb5b8ec1f2b9c1764b23cd8ccb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+894d32a5432c6a6461bb2aac7c3d5f2e87dce83f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 764413f2f43b803ebb2a54e4d1b4017714e4fc99ef3af6b0102cae7ac9f53067
[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" "764413f2f43b803ebb2a54e4d1b4017714e4fc99ef3af6b0102cae7ac9f53067", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking memory_units v0.3.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking multimap v0.5.0
[INFO] [stderr]     Checking parity-wasm v0.31.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling flow_impl_derive v0.8.5
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]     Checking instant v0.1.7
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking error-chain v0.12.4
[INFO] [stderr]     Checking flow_impl v0.8.5
[INFO] [stderr]     Checking wasmi-validation v0.1.0
[INFO] [stderr]     Checking wasmi v0.4.5
[INFO] [stderr]     Checking flowrlib v0.8.8
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking image v0.22.5
[INFO] [stderr]     Checking flowstdlib v0.8.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.88s
[INFO] running `Command { std: "docker" "inspect" "764413f2f43b803ebb2a54e4d1b4017714e4fc99ef3af6b0102cae7ac9f53067", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764413f2f43b803ebb2a54e4d1b4017714e4fc99ef3af6b0102cae7ac9f53067", kill_on_drop: false }`
[INFO] [stdout] 764413f2f43b803ebb2a54e4d1b4017714e4fc99ef3af6b0102cae7ac9f53067