[INFO] cloning repository https://github.com/majchrzamemil/rust-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/majchrzamemil/rust-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmajchrzamemil%2Frust-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmajchrzamemil%2Frust-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9fb4a7eb36c21ded1907c9e2982f192830df7eab
[INFO] checking majchrzamemil/rust-example against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmajchrzamemil%2Frust-example" "/workspace/builds/worker-94/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-94/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/majchrzamemil/rust-example 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/majchrzamemil/rust-example
[INFO] finished tweaking git repo https://github.com/majchrzamemil/rust-example
[INFO] tweaked toml for git repo https://github.com/majchrzamemil/rust-example written to /workspace/builds/worker-94/source/Cargo.toml
[INFO] crate git repo https://github.com/majchrzamemil/rust-example 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 crypto-mac v0.9.1
[INFO] [stderr]   Downloaded serde_derive v1.0.120
[INFO] [stderr]   Downloaded dotenv v0.10.1
[INFO] [stderr]   Downloaded skeptic v0.13.5
[INFO] [stderr]   Downloaded cargo_metadata v0.10.0
[INFO] [stderr]   Downloaded pin-project v1.0.4
[INFO] [stderr]   Downloaded actix_derive v0.1.1
[INFO] [stderr]   Downloaded redox_syscall v0.2.4
[INFO] [stderr]   Downloaded tokio-core v0.1.18
[INFO] [stderr]   Downloaded crossbeam v0.3.0
[INFO] [stderr]   Downloaded bytecount v0.6.2
[INFO] [stderr]   Downloaded actix v0.4.5
[INFO] [stderr]   Downloaded actix-router v0.2.6
[INFO] [stderr]   Downloaded jwt v0.11.0
[INFO] [stderr]   Downloaded pulldown-cmark v0.2.0
[INFO] [stderr]   Downloaded pin-project-internal v1.0.4
[INFO] [stderr]   Downloaded actix-web-httpauth v0.5.0
[INFO] [stderr]   Downloaded rust-argon2 v0.6.1
[INFO] [stderr]   Downloaded hmac v0.9.0
[INFO] [stderr]   Downloaded sha-1 v0.9.2
[INFO] [stderr]   Downloaded derive-error-chain v0.10.1
[INFO] [stderr]   Downloaded env_logger v0.8.2
[INFO] [stderr]   Downloaded juniper v0.14.2
[INFO] [stderr]   Downloaded juniper_codegen v0.14.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 859173160a1eac97983b090f42a898933bd59c13ad147ba4225b28e2e3b9b32e
[INFO] running `Command { std: "docker" "start" "-a" "859173160a1eac97983b090f42a898933bd59c13ad147ba4225b28e2e3b9b32e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "859173160a1eac97983b090f42a898933bd59c13ad147ba4225b28e2e3b9b32e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "859173160a1eac97983b090f42a898933bd59c13ad147ba4225b28e2e3b9b32e", kill_on_drop: false }`
[INFO] [stdout] 859173160a1eac97983b090f42a898933bd59c13ad147ba4225b28e2e3b9b32e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-94/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] 804fda5f67a8c3d22ce280435023cd8ef85b62056930d5b1af6b8b7e15982091
[INFO] running `Command { std: "docker" "start" "-a" "804fda5f67a8c3d22ce280435023cd8ef85b62056930d5b1af6b8b7e15982091", 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" "804fda5f67a8c3d22ce280435023cd8ef85b62056930d5b1af6b8b7e15982091", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "804fda5f67a8c3d22ce280435023cd8ef85b62056930d5b1af6b8b7e15982091", kill_on_drop: false }`
[INFO] [stdout] 804fda5f67a8c3d22ce280435023cd8ef85b62056930d5b1af6b8b7e15982091