[INFO] fetching crate viewit 0.1.5...
[INFO] checking viewit-0.1.5 against master#8f43b85954d2f3d8fc00a7504c603e5ca9eb0695 for pr-133502-5
[INFO] extracting crate viewit 0.1.5 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate viewit 0.1.5 on toolchain 8f43b85954d2f3d8fc00a7504c603e5ca9eb0695
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate viewit 0.1.5
[INFO] finished tweaking crates.io crate viewit 0.1.5
[INFO] tweaked toml for crates.io crate viewit 0.1.5 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate viewit 0.1.5 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" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded darling_macro v0.14.3
[INFO] [stderr]   Downloaded derivit-core v0.1.5
[INFO] [stderr]   Downloaded darling v0.14.3
[INFO] [stderr]   Downloaded darling_core v0.14.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded prettyplease v0.1.24
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74e84b5b4473fdad17f1241702b7a0158c9604a48293a1da8d843a68994a1c7c
[INFO] running `Command { std: "docker" "start" "-a" "74e84b5b4473fdad17f1241702b7a0158c9604a48293a1da8d843a68994a1c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74e84b5b4473fdad17f1241702b7a0158c9604a48293a1da8d843a68994a1c7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74e84b5b4473fdad17f1241702b7a0158c9604a48293a1da8d843a68994a1c7c", kill_on_drop: false }`
[INFO] [stdout] 74e84b5b4473fdad17f1241702b7a0158c9604a48293a1da8d843a68994a1c7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+8f43b85954d2f3d8fc00a7504c603e5ca9eb0695" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f63210969c432f68f340349cd66901e6be5f41eb0b9e8ccb1964a44410a7fdc
[INFO] running `Command { std: "docker" "start" "-a" "4f63210969c432f68f340349cd66901e6be5f41eb0b9e8ccb1964a44410a7fdc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling prettyplease v0.1.24
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking ident_case v1.0.1
[INFO] [stderr]     Checking heck v0.4.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4f63210969c432f68f340349cd66901e6be5f41eb0b9e8ccb1964a44410a7fdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f63210969c432f68f340349cd66901e6be5f41eb0b9e8ccb1964a44410a7fdc", kill_on_drop: false }`
[INFO] [stdout] 4f63210969c432f68f340349cd66901e6be5f41eb0b9e8ccb1964a44410a7fdc