[INFO] cloning repository https://github.com/nanotech/dhall-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nanotech/dhall-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanotech%2Fdhall-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanotech%2Fdhall-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5408abbbabd066f9ffbe030f9f0205dc56e5161c
[INFO] checking nanotech/dhall-rs against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnanotech%2Fdhall-rs" "/workspace/builds/worker-33/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-33/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nanotech/dhall-rs 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/nanotech/dhall-rs
[INFO] finished tweaking git repo https://github.com/nanotech/dhall-rs
[INFO] tweaked toml for git repo https://github.com/nanotech/dhall-rs written to /workspace/builds/worker-33/source/Cargo.toml
[INFO] crate git repo https://github.com/nanotech/dhall-rs 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 lalrpop-util v0.17.1
[INFO] [stderr]   Downloaded term-painter v0.2.4
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
[INFO] [stderr]   Downloaded string_cache v0.7.3
[INFO] [stderr]   Downloaded bytecount v0.5.1
[INFO] [stderr]   Downloaded fixedbitset v0.1.7
[INFO] [stderr]   Downloaded diff v0.1.10
[INFO] [stderr]   Downloaded serde_derive v1.0.94
[INFO] [stderr]   Downloaded bit-set v0.5.1
[INFO] [stderr]   Downloaded string_cache_codegen v0.4.2
[INFO] [stderr]   Downloaded string_cache_shared v0.3.0
[INFO] [stderr]   Downloaded strsim v0.9.2
[INFO] [stderr]   Downloaded nom v5.0.0
[INFO] [stderr]   Downloaded ena v0.13.0
[INFO] [stderr]   Downloaded lalrpop v0.17.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 85c02b0d84a86624b18cc05f08d47b35047a27b8d1fc664286eecf50e09c614f
[INFO] running `Command { std: "docker" "start" "-a" "85c02b0d84a86624b18cc05f08d47b35047a27b8d1fc664286eecf50e09c614f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85c02b0d84a86624b18cc05f08d47b35047a27b8d1fc664286eecf50e09c614f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85c02b0d84a86624b18cc05f08d47b35047a27b8d1fc664286eecf50e09c614f", kill_on_drop: false }`
[INFO] [stdout] 85c02b0d84a86624b18cc05f08d47b35047a27b8d1fc664286eecf50e09c614f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-33/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] 954571cc8c8d4752539f3c3e9c5a5e23c0331efed0275716a0e61c1821a98cee
[INFO] running `Command { std: "docker" "start" "-a" "954571cc8c8d4752539f3c3e9c5a5e23c0331efed0275716a0e61c1821a98cee", 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" "954571cc8c8d4752539f3c3e9c5a5e23c0331efed0275716a0e61c1821a98cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "954571cc8c8d4752539f3c3e9c5a5e23c0331efed0275716a0e61c1821a98cee", kill_on_drop: false }`
[INFO] [stdout] 954571cc8c8d4752539f3c3e9c5a5e23c0331efed0275716a0e61c1821a98cee