[INFO] fetching crate macchina 6.1.8...
[INFO] checking macchina-6.1.8 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate macchina 6.1.8 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate macchina 6.1.8 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate macchina 6.1.8
[INFO] finished tweaking crates.io crate macchina 6.1.8
[INFO] tweaked toml for crates.io crate macchina 6.1.8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate macchina 6.1.8 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded time v0.3.14
[INFO] [stderr]   Downloaded enum-iterator-derive v1.1.0
[INFO] [stderr]   Downloaded enum-iterator v1.1.3
[INFO] [stderr]   Downloaded shellexpand v3.0.0
[INFO] [stderr]   Downloaded vergen v7.4.2
[INFO] [stderr]   Downloaded color-to-tui v0.2.0
[INFO] [stderr]   Downloaded os-release v0.1.0
[INFO] [stderr]   Downloaded libmacchina v6.3.5
[INFO] [stderr]   Downloaded com_macros v0.6.0
[INFO] [stderr]   Downloaded ansi-to-tui v2.0.0
[INFO] [stderr]   Downloaded local-ip-address v0.4.8
[INFO] [stderr]   Downloaded cocoa v0.20.2
[INFO] [stderr]   Downloaded metal v0.18.0
[INFO] [stderr]   Downloaded neli v0.5.3
[INFO] [stderr]   Downloaded git2 v0.14.4
[INFO] [stderr]   Downloaded com v0.6.0
[INFO] [stderr]   Downloaded futures-executor v0.3.24
[INFO] [stderr]   Downloaded wmi v0.11.2
[INFO] [stderr]   Downloaded sqlite3-sys v0.14.0
[INFO] [stderr]   Downloaded com_macros_support v0.6.0
[INFO] [stderr]   Downloaded libgit2-sys v0.13.4+1.4.2
[INFO] [stderr]   Downloaded futures-macro v0.3.24
[INFO] [stderr]   Downloaded sqlite v0.27.0
[INFO] [stderr]   Downloaded iana-time-zone v0.1.48
[INFO] [stderr]   Downloaded sqlite3-src v0.4.0
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ccb4d41fca8ab46b40847d9dc1ee956eac947f96e268742e085d280f9ec80cfe
[INFO] running `Command { std: "docker" "start" "-a" "ccb4d41fca8ab46b40847d9dc1ee956eac947f96e268742e085d280f9ec80cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ccb4d41fca8ab46b40847d9dc1ee956eac947f96e268742e085d280f9ec80cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ccb4d41fca8ab46b40847d9dc1ee956eac947f96e268742e085d280f9ec80cfe", kill_on_drop: false }`
[INFO] [stdout] ccb4d41fca8ab46b40847d9dc1ee956eac947f96e268742e085d280f9ec80cfe
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 416f1fe67a5692b2220ae14408103e85ec8ce0ef60616c86acd0ced53f8b4fa0
[INFO] running `Command { std: "docker" "start" "-a" "416f1fe67a5692b2220ae14408103e85ec8ce0ef60616c86acd0ced53f8b4fa0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling rustversion v1.0.9
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 unicode-bidi v0.3.8
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stdout] error: aborting due to 1 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" "416f1fe67a5692b2220ae14408103e85ec8ce0ef60616c86acd0ced53f8b4fa0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416f1fe67a5692b2220ae14408103e85ec8ce0ef60616c86acd0ced53f8b4fa0", kill_on_drop: false }`
[INFO] [stdout] 416f1fe67a5692b2220ae14408103e85ec8ce0ef60616c86acd0ced53f8b4fa0
