[INFO] cloning repository https://github.com/ProspectExam/prospect-backend
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ProspectExam/prospect-backend" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProspectExam%2Fprospect-backend", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProspectExam%2Fprospect-backend'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2ccacbfd19b1f4a3d0948d0528b11c6f5be8dfd
[INFO] checking ProspectExam/prospect-backend against master#6162f6f12339aa81fe16b8a64644ead497e411b2 for pr-113242
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProspectExam%2Fprospect-backend" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ProspectExam/prospect-backend on toolchain 6162f6f12339aa81fe16b8a64644ead497e411b2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ProspectExam/prospect-backend
[INFO] finished tweaking git repo https://github.com/ProspectExam/prospect-backend
[INFO] tweaked toml for git repo https://github.com/ProspectExam/prospect-backend written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ProspectExam/prospect-backend already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pkcs8 v0.8.0
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.80
[INFO] [stderr]   Downloaded argh_derive v0.1.9
[INFO] [stderr]   Downloaded argh_shared v0.1.9
[INFO] [stderr]   Downloaded thiserror-impl v1.0.37
[INFO] [stderr]   Downloaded pem-rfc7468 v0.3.1
[INFO] [stderr]   Downloaded argh v0.1.9
[INFO] [stderr]   Downloaded pkcs1 v0.3.3
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.80
[INFO] [stderr]   Downloaded serde_json v1.0.87
[INFO] [stderr]   Downloaded webpki-roots v0.22.5
[INFO] [stderr]   Downloaded cxx v1.0.80
[INFO] [stderr]   Downloaded warp v0.3.3
[INFO] [stderr]   Downloaded num-bigint-dig v0.8.1
[INFO] [stderr]   Downloaded cxx-build v1.0.80
[INFO] [stderr]   Downloaded libm v0.2.5
[INFO] [stderr]   Downloaded rsa v0.6.1
[INFO] [stderr]   Downloaded crypto-bigint v0.3.2
[INFO] [stderr]   Downloaded thiserror v1.0.37
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.12
[INFO] [stderr]   Downloaded headers v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ce4f8858df30f98784fae67361c5672908ddc331c0d7d2917ef9e48c549280c4
[INFO] running `Command { std: "docker" "start" "-a" "ce4f8858df30f98784fae67361c5672908ddc331c0d7d2917ef9e48c549280c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ce4f8858df30f98784fae67361c5672908ddc331c0d7d2917ef9e48c549280c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce4f8858df30f98784fae67361c5672908ddc331c0d7d2917ef9e48c549280c4", kill_on_drop: false }`
[INFO] [stdout] ce4f8858df30f98784fae67361c5672908ddc331c0d7d2917ef9e48c549280c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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:a420fdec406141845121210faa381f8029b0be6d4170deff7c4445a424f67918" "/opt/rustwide/cargo-home/bin/cargo" "+6162f6f12339aa81fe16b8a64644ead497e411b2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6019e4eb7d364345c8db18a80201578cc84ebe99e23bdb887f027fd66de99dfe
[INFO] running `Command { std: "docker" "start" "-a" "6019e4eb7d364345c8db18a80201578cc84ebe99e23bdb887f027fd66de99dfe", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking generic-array v0.14.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling rustls v0.20.7
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking http v0.2.8
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6019e4eb7d364345c8db18a80201578cc84ebe99e23bdb887f027fd66de99dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6019e4eb7d364345c8db18a80201578cc84ebe99e23bdb887f027fd66de99dfe", kill_on_drop: false }`
[INFO] [stdout] 6019e4eb7d364345c8db18a80201578cc84ebe99e23bdb887f027fd66de99dfe