[INFO] fetching crate jsonsv 0.1.2...
[INFO] checking jsonsv-0.1.2 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate jsonsv 0.1.2 into /workspace/builds/worker-19/source
[INFO] validating manifest of crates.io crate jsonsv 0.1.2 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 crates.io crate jsonsv 0.1.2
[INFO] finished tweaking crates.io crate jsonsv 0.1.2
[INFO] tweaked toml for crates.io crate jsonsv 0.1.2 written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate crates.io crate jsonsv 0.1.2 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]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt-derive v0.3.4
[INFO] [stderr]   Downloaded structopt v0.3.4
[INFO] [stderr]   Downloaded itertools v0.8.1
[INFO] [stderr]   Downloaded num-traits v0.2.9
[INFO] [stderr]   Downloaded strum v0.9.0
[INFO] [stderr]   Downloaded strum_macros v0.9.1
[INFO] [stderr]   Downloaded proc-macro2 v0.3.8
[INFO] [stderr]   Downloaded syn v0.13.11
[INFO] [stderr]   Downloaded opaque_typedef v0.0.3
[INFO] [stderr]   Downloaded opaque_typedef_macros v0.0.3
[INFO] [stderr]   Downloaded iri-string v0.1.1
[INFO] [stderr]   Downloaded json-pointer v0.3.2
[INFO] [stderr]   Downloaded jsonschema-valid v0.2.0
[INFO] [stderr]   Downloaded unicode-normalization v0.1.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] adc14ac9ea4bf7b4348f995c9efc094cfa9528f6ee7a8e1c1d41b7a269e9bbf3
[INFO] running `Command { std: "docker" "start" "-a" "adc14ac9ea4bf7b4348f995c9efc094cfa9528f6ee7a8e1c1d41b7a269e9bbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adc14ac9ea4bf7b4348f995c9efc094cfa9528f6ee7a8e1c1d41b7a269e9bbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adc14ac9ea4bf7b4348f995c9efc094cfa9528f6ee7a8e1c1d41b7a269e9bbf3", kill_on_drop: false }`
[INFO] [stdout] adc14ac9ea4bf7b4348f995c9efc094cfa9528f6ee7a8e1c1d41b7a269e9bbf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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] a364bb083126a28d33a2a1784b96a519cc8c0222e4361e853f6d315f62ac4f59
[INFO] running `Command { std: "docker" "start" "-a" "a364bb083126a28d33a2a1784b96a519cc8c0222e4361e853f6d315f62ac4f59", 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" "a364bb083126a28d33a2a1784b96a519cc8c0222e4361e853f6d315f62ac4f59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a364bb083126a28d33a2a1784b96a519cc8c0222e4361e853f6d315f62ac4f59", kill_on_drop: false }`
[INFO] [stdout] a364bb083126a28d33a2a1784b96a519cc8c0222e4361e853f6d315f62ac4f59