[INFO] cloning repository https://github.com/rust-corpus/top-crates
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rust-corpus/top-crates" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-corpus%2Ftop-crates", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-corpus%2Ftop-crates'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3022cc1d58fbee3d7cb2dc9fe40cd33d8ed90e6e
[INFO] checking rust-corpus/top-crates against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frust-corpus%2Ftop-crates" "/workspace/builds/worker-101/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-101/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rust-corpus/top-crates on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rust-corpus/top-crates
[INFO] finished tweaking git repo https://github.com/rust-corpus/top-crates
[INFO] tweaked toml for git repo https://github.com/rust-corpus/top-crates written to /workspace/builds/worker-101/source/Cargo.toml
[INFO] crate git repo https://github.com/rust-corpus/top-crates already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--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 num_cpus v1.9.0
[INFO] [stderr]   Downloaded memchr v2.1.2
[INFO] [stderr]   Downloaded globset v0.4.2
[INFO] [stderr]   Downloaded curl v0.4.19
[INFO] [stderr]   Downloaded core-foundation v0.6.3
[INFO] [stderr]   Downloaded crossbeam-utils v0.5.0
[INFO] [stderr]   Downloaded rand_core v0.2.2
[INFO] [stderr]   Downloaded tokio-fs v0.1.4
[INFO] [stderr]   Downloaded redox_syscall v0.1.44
[INFO] [stderr]   Downloaded phf_generator v0.7.23
[INFO] [stderr]   Downloaded git2 v0.7.5
[INFO] [stderr]   Downloaded ucd-util v0.1.3
[INFO] [stderr]   Downloaded memoffset v0.2.1
[INFO] [stderr]   Downloaded filetime v0.2.4
[INFO] [stderr]   Downloaded humantime v1.2.0
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.4
[INFO] [stderr]   Downloaded ignore v0.4.5
[INFO] [stderr]   Downloaded rustc-demangle v0.1.11
[INFO] [stderr]   Downloaded same-file v1.0.4
[INFO] [stderr]   Downloaded miniz-sys v0.1.11
[INFO] [stderr]   Downloaded crypto-hash v0.3.1
[INFO] [stderr]   Downloaded backtrace-sys v0.1.26
[INFO] [stderr]   Downloaded regex-syntax v0.6.4
[INFO] [stderr]   Downloaded rand_chacha v0.1.0
[INFO] [stderr]   Downloaded time v0.1.41
[INFO] [stderr]   Downloaded safemem v0.3.0
[INFO] [stderr]   Downloaded indexmap v1.0.2
[INFO] [stderr]   Downloaded mime v0.3.12
[INFO] [stderr]   Downloaded openssl-sys v0.9.40
[INFO] [stderr]   Downloaded opener v0.3.2
[INFO] [stderr]   Downloaded serde_urlencoded v0.5.4
[INFO] [stderr]   Downloaded rand_xorshift v0.1.0
[INFO] [stderr]   Downloaded curl-sys v0.4.15
[INFO] [stderr]   Downloaded crates-io v0.19.0
[INFO] [stderr]   Downloaded encoding_rs v0.8.13
[INFO] [stderr]   Downloaded rand_core v0.3.0
[INFO] [stderr]   Downloaded string v0.1.2
[INFO] [stderr]   Downloaded tokio v0.1.13
[INFO] [stderr]   Downloaded unicase v2.2.0
[INFO] [stderr]   Downloaded h2 v0.1.14
[INFO] [stderr]   Downloaded serde_json v1.0.33
[INFO] [stderr]   Downloaded core-foundation-sys v0.5.1
[INFO] [stderr]   Downloaded cargo v0.31.0
[INFO] [stderr]   Downloaded tar v0.4.20
[INFO] [stderr]   Downloaded rand v0.6.1
[INFO] [stderr]   Downloaded tokio-udp v0.1.3
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.9
[INFO] [stderr]   Downloaded serde_derive v1.0.82
[INFO] [stderr]   Downloaded ryu v0.2.7
[INFO] [stderr]   Downloaded rand_pcg v0.1.1
[INFO] [stderr]   Downloaded tokio-codec v0.1.1
[INFO] [stderr]   Downloaded futures v0.1.25
[INFO] [stderr]   Downloaded reqwest v0.9.5
[INFO] [stderr]   Downloaded parking_lot_core v0.3.1
[INFO] [stderr]   Downloaded miniz_oxide v0.2.0
[INFO] [stderr]   Downloaded fwdansi v1.0.1
[INFO] [stderr]   Downloaded hyper v0.12.19
[INFO] [stderr]   Downloaded adler32 v1.0.3
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.3
[INFO] [stderr]   Downloaded tokio-uds v0.2.4
[INFO] [stderr]   Downloaded byteorder v1.2.7
[INFO] [stderr]   Downloaded flate2 v1.0.6
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] [stderr]   Downloaded hyper-tls v0.3.1
[INFO] [stderr]   Downloaded crc32fast v1.1.2
[INFO] [stderr]   Downloaded libflate v0.1.19
[INFO] [stderr]   Downloaded openssl v0.10.16
[INFO] [stderr]   Downloaded core-foundation v0.5.1
[INFO] [stderr]   Downloaded remove_dir_all v0.5.1
[INFO] [stderr]   Downloaded native-tls v0.2.2
[INFO] [stderr]   Downloaded nodrop v0.1.13
[INFO] [stderr]   Downloaded mio-uds v0.6.7
[INFO] [stderr]   Downloaded net2 v0.2.33
[INFO] [stderr]   Downloaded parking_lot_core v0.4.0
[INFO] [stderr]   Downloaded walkdir v2.2.7
[INFO] [stderr]   Downloaded jobserver v0.1.12
[INFO] [stderr]   Downloaded autocfg v0.1.1
[INFO] [stderr]   Downloaded backtrace v0.3.13
[INFO] [stderr]   Downloaded rustfix v0.4.4
[INFO] [stderr]   Downloaded http v0.1.14
[INFO] [stderr]   Downloaded httparse v1.3.3
[INFO] [stderr]   Downloaded want v0.0.6
[INFO] [stderr]   Downloaded phf v0.7.23
[INFO] [stderr]   Downloaded phf_shared v0.7.23
[INFO] [stderr]   Downloaded phf_codegen v0.7.23
[INFO] [stderr]   Downloaded mime_guess v2.0.0-alpha.6
[INFO] [stderr]   Downloaded cc v1.0.27
[INFO] [stderr]   Downloaded security-framework v0.2.1
[INFO] [stderr]   Downloaded security-framework-sys v0.2.1
[INFO] [stderr]   Downloaded tempfile v3.0.5
[INFO] [stderr]   Downloaded dtoa v0.4.3
[INFO] [stderr]   Downloaded arrayvec v0.4.9
[INFO] [stderr]   Downloaded tokio-tcp v0.1.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.7.0
[INFO] [stderr]   Downloaded crossbeam-deque v0.6.3
[INFO] [stderr]   Downloaded tokio-timer v0.2.8
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded parking_lot v0.6.4
[INFO] [stderr]   Downloaded unicode-normalization v0.1.7
[INFO] [stderr]   Downloaded rand v0.5.5
[INFO] [stderr]   Downloaded proc-macro2 v0.4.24
[INFO] [stderr]   Downloaded home v0.3.3
[INFO] [stderr]   Downloaded parking_lot v0.7.0
[INFO] [stderr]   Downloaded crossbeam-channel v0.3.4
[INFO] [stderr]   Downloaded mio v0.6.16
[INFO] [stderr]   Downloaded owning_ref v0.4.0
[INFO] [stderr]   Downloaded lock_api v0.1.5
[INFO] [stderr]   Downloaded smallvec v0.6.7
[INFO] [stderr]   Downloaded slab v0.4.1
[INFO] [stderr]   Downloaded tokio-executor v0.1.5
[INFO] [stderr]   Downloaded tokio-reactor v0.1.7
[INFO] [stderr]   Downloaded bytes v0.4.11
[INFO] [stderr]   Downloaded tokio-io v0.1.10
[INFO] [stderr]   Downloaded uuid v0.7.1
[INFO] [stderr]   Downloaded quote v0.6.10
[INFO] [stderr]   Downloaded syn v0.15.23
[INFO] [stderr]   Downloaded miniz_oxide_c_api v0.2.0
[INFO] [stderr]   Downloaded git2-curl v0.8.2
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded serde v1.0.82
[INFO] [stderr]   Downloaded utf8-ranges v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96e7ee3286a6c011215f554af335a62ef1533f4a2d6b082d5ba56e24140ab138
[INFO] running `Command { std: "docker" "start" "-a" "96e7ee3286a6c011215f554af335a62ef1533f4a2d6b082d5ba56e24140ab138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96e7ee3286a6c011215f554af335a62ef1533f4a2d6b082d5ba56e24140ab138", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96e7ee3286a6c011215f554af335a62ef1533f4a2d6b082d5ba56e24140ab138", kill_on_drop: false }`
[INFO] [stdout] 96e7ee3286a6c011215f554af335a62ef1533f4a2d6b082d5ba56e24140ab138
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-101/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" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17374746cc8f471f94d1d423ba1f087c1fa99b63a1792c324a61e13e0c30672d
[INFO] running `Command { std: "docker" "start" "-a" "17374746cc8f471f94d1d423ba1f087c1fa99b63a1792c324a61e13e0c30672d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: failed to create jobserver
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to increase jobserver pipe capacity from 4096 to 8192; jobserver otherwise might deadlock
[INFO] running `Command { std: "docker" "inspect" "17374746cc8f471f94d1d423ba1f087c1fa99b63a1792c324a61e13e0c30672d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17374746cc8f471f94d1d423ba1f087c1fa99b63a1792c324a61e13e0c30672d", kill_on_drop: false }`
[INFO] [stdout] 17374746cc8f471f94d1d423ba1f087c1fa99b63a1792c324a61e13e0c30672d