[INFO] cloning repository https://github.com/DoumanAsh/grep_vn_walk
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DoumanAsh/grep_vn_walk" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoumanAsh%2Fgrep_vn_walk", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoumanAsh%2Fgrep_vn_walk'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a25bc2be183286fab712fda25c6ff60958152422
[INFO] testing DoumanAsh/grep_vn_walk against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDoumanAsh%2Fgrep_vn_walk" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DoumanAsh/grep_vn_walk on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DoumanAsh/grep_vn_walk
[INFO] finished tweaking git repo https://github.com/DoumanAsh/grep_vn_walk
[INFO] tweaked toml for git repo https://github.com/DoumanAsh/grep_vn_walk written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/DoumanAsh/grep_vn_walk already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pest v1.0.6
[INFO] [stderr]   Downloaded serde v1.0.75
[INFO] [stderr]   Downloaded memchr v2.0.2
[INFO] [stderr]   Downloaded rustls v0.13.1
[INFO] [stderr]   Downloaded regex v1.0.4
[INFO] [stderr]   Downloaded pest_derive v1.0.8
[INFO] [stderr]   Downloaded tokio-rustls v0.7.2
[INFO] [stderr]   Downloaded http v0.1.10
[INFO] [stderr]   Downloaded webpki v0.18.1
[INFO] [stderr]   Downloaded webpki-roots v0.15.0
[INFO] [stderr]   Downloaded serde_json v1.0.26
[INFO] [stderr]   Downloaded data-encoding v2.1.1
[INFO] [stderr]   Downloaded futures v0.1.23
[INFO] [stderr]   Downloaded bytes v0.4.9
[INFO] [stderr]   Downloaded sct v0.4.0
[INFO] [stderr]   Downloaded hyper-rustls v0.14.0
[INFO] [stderr]   Downloaded itoa v0.4.2
[INFO] [stderr]   Downloaded mio-uds v0.6.6
[INFO] [stderr]   Downloaded cc v1.0.23
[INFO] [stderr]   Downloaded mio v0.6.15
[INFO] [stderr]   Downloaded log v0.4.4
[INFO] [stderr]   Downloaded ct-logs v0.4.0
[INFO] [stderr]   Downloaded lazy-panic v0.3.2
[INFO] [stderr]   Downloaded etag v1.0.2
[INFO] [stderr]   Downloaded parking_lot_core v0.3.0
[INFO] [stderr]   Downloaded yukikaze v0.2.0
[INFO] [stderr]   Downloaded hyper v0.12.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", 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] a8d16578bd122cbe2ad1d9116d78af48726b19f0252b1c3396ff129a077f7901
[INFO] running `Command { std: "docker" "start" "-a" "a8d16578bd122cbe2ad1d9116d78af48726b19f0252b1c3396ff129a077f7901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8d16578bd122cbe2ad1d9116d78af48726b19f0252b1c3396ff129a077f7901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d16578bd122cbe2ad1d9116d78af48726b19f0252b1c3396ff129a077f7901", kill_on_drop: false }`
[INFO] [stdout] a8d16578bd122cbe2ad1d9116d78af48726b19f0252b1c3396ff129a077f7901
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ff5ba71d43004175d789d8061d4bd394f6bd7a9c8e99c522a305b6df28c878a
[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" "7ff5ba71d43004175d789d8061d4bd394f6bd7a9c8e99c522a305b6df28c878a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling itoa v0.4.2
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling serde v1.0.75
[INFO] [stderr]    Compiling httparse v1.3.2
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling indexmap v1.0.1
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling string v0.1.1
[INFO] [stderr]    Compiling percent-encoding v1.0.1
[INFO] [stderr]    Compiling dtoa v0.4.3
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling data-encoding v2.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling etag v1.0.2
[INFO] [stderr]    Compiling lazy-panic v0.3.2
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling ring v0.13.2
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling unicase v2.1.0
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]    Compiling log v0.4.4
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling lock_api v0.1.3
[INFO] [stderr]    Compiling base64 v0.9.2
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling want v0.0.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling aho-corasick v0.6.8
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling cookie v0.11.0
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling mime v0.3.9
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling http v0.1.10
[INFO] [stderr]    Compiling phf_shared v0.7.23
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling flate2 v1.0.2
[INFO] [stderr]    Compiling phf v0.7.23
[INFO] [stderr]    Compiling parking_lot_core v0.3.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling phf_generator v0.7.23
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling phf_codegen v0.7.23
[INFO] [stderr]    Compiling mio-uds v0.6.6
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling url v1.7.1
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling mime_guess v2.0.0-alpha.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]    Compiling regex v1.0.4
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling h2 v0.1.12
[INFO] [stderr]    Compiling webpki v0.18.1
[INFO] [stderr]    Compiling sct v0.4.0
[INFO] [stderr]    Compiling ct-logs v0.4.0
[INFO] [stderr]    Compiling rustls v0.13.1
[INFO] [stderr]    Compiling webpki-roots v0.15.0
[INFO] [stderr]    Compiling serde_urlencoded v0.5.3
[INFO] [stderr]    Compiling serde_json v1.0.26
[INFO] [stderr]    Compiling hyper v0.12.9
[INFO] [stderr]    Compiling tokio-rustls v0.7.2
[INFO] [stderr]    Compiling hyper-rustls v0.14.0
[INFO] [stderr]    Compiling yukikaze v0.2.0
[INFO] [stderr]    Compiling grep_vn_walk v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 56s
[INFO] running `Command { std: "docker" "inspect" "7ff5ba71d43004175d789d8061d4bd394f6bd7a9c8e99c522a305b6df28c878a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ff5ba71d43004175d789d8061d4bd394f6bd7a9c8e99c522a305b6df28c878a", kill_on_drop: false }`
[INFO] [stdout] 7ff5ba71d43004175d789d8061d4bd394f6bd7a9c8e99c522a305b6df28c878a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a7f41f4d9c196dd3735a521957676e83b0f958d7ca581ff4f6b8db9dafb25d6
[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" "0a7f41f4d9c196dd3735a521957676e83b0f958d7ca581ff4f6b8db9dafb25d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling grep_vn_walk v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "0a7f41f4d9c196dd3735a521957676e83b0f958d7ca581ff4f6b8db9dafb25d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a7f41f4d9c196dd3735a521957676e83b0f958d7ca581ff4f6b8db9dafb25d6", kill_on_drop: false }`
[INFO] [stdout] 0a7f41f4d9c196dd3735a521957676e83b0f958d7ca581ff4f6b8db9dafb25d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c35981b3a14f9f7c4e1d86d4d3f63525efc9d16b29db83ea95834805f8f8f700
[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" "c35981b3a14f9f7c4e1d86d4d3f63525efc9d16b29db83ea95834805f8f8f700", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.52s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/grep_vn_walk-2bc366b082e46934)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c35981b3a14f9f7c4e1d86d4d3f63525efc9d16b29db83ea95834805f8f8f700", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c35981b3a14f9f7c4e1d86d4d3f63525efc9d16b29db83ea95834805f8f8f700", kill_on_drop: false }`
[INFO] [stdout] c35981b3a14f9f7c4e1d86d4d3f63525efc9d16b29db83ea95834805f8f8f700