[INFO] fetching crate kepton 0.0.3...
[INFO] checking kepton-0.0.3 against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] extracting crate kepton 0.0.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate kepton 0.0.3 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 kepton 0.0.3
[INFO] finished tweaking crates.io crate kepton 0.0.3
[INFO] tweaked toml for crates.io crate kepton 0.0.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate kepton 0.0.3 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 sqlx v0.4.1
[INFO] [stderr]   Downloaded sqlformat v0.1.5
[INFO] [stderr]   Downloaded redis-async v0.6.6
[INFO] [stderr]   Downloaded backoff v0.2.1
[INFO] [stderr]   Downloaded ahash v0.5.10
[INFO] [stderr]   Downloaded actix-cors v0.5.3
[INFO] [stderr]   Downloaded envy v0.4.1
[INFO] [stderr]   Downloaded actix-router v0.2.5
[INFO] [stderr]   Downloaded pem v0.8.2
[INFO] [stderr]   Downloaded hyperx v1.2.0
[INFO] [stderr]   Downloaded quoted_printable v0.4.2
[INFO] [stderr]   Downloaded atoi v0.3.3
[INFO] [stderr]   Downloaded sqlx-macros v0.4.0
[INFO] [stderr]   Downloaded funty v1.0.1
[INFO] [stderr]   Downloaded lettre v0.10.0-alpha.4
[INFO] [stderr]   Downloaded actix-redis v0.9.1
[INFO] [stderr]   Downloaded sqlx-core v0.4.0
[INFO] [stderr]   Downloaded parking_lot_core v0.8.1
[INFO] [stderr]   Downloaded sqlx-rt v0.2.0
[INFO] [stderr]   Downloaded actix-rate-limit v0.3.1
[INFO] [stderr]   Downloaded whoami v0.9.0
[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" "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] 99a269bb6a7670f82b6bdd6b5109d67dd700818d2015b009ce0e77594278f170
[INFO] running `Command { std: "docker" "start" "-a" "99a269bb6a7670f82b6bdd6b5109d67dd700818d2015b009ce0e77594278f170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "99a269bb6a7670f82b6bdd6b5109d67dd700818d2015b009ce0e77594278f170", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a269bb6a7670f82b6bdd6b5109d67dd700818d2015b009ce0e77594278f170", kill_on_drop: false }`
[INFO] [stdout] 99a269bb6a7670f82b6bdd6b5109d67dd700818d2015b009ce0e77594278f170
[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" "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] 8eb354c98175b30017dd56fffe5e2737e5e26bd874be5e6273da210632edb226
[INFO] running `Command { std: "docker" "start" "-a" "8eb354c98175b30017dd56fffe5e2737e5e26bd874be5e6273da210632edb226", 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" "8eb354c98175b30017dd56fffe5e2737e5e26bd874be5e6273da210632edb226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8eb354c98175b30017dd56fffe5e2737e5e26bd874be5e6273da210632edb226", kill_on_drop: false }`
[INFO] [stdout] 8eb354c98175b30017dd56fffe5e2737e5e26bd874be5e6273da210632edb226