[INFO] fetching crate cuid 1.3.2...
[INFO] checking cuid-1.3.2 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate cuid 1.3.2 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate cuid 1.3.2 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cuid 1.3.2
[INFO] finished tweaking crates.io crate cuid 1.3.2
[INFO] tweaked toml for crates.io crate cuid 1.3.2 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate cuid 1.3.2 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-bigint v0.4.3
[INFO] [stderr]   Downloaded match_cfg v0.1.0
[INFO] [stderr]   Downloaded num-rational v0.4.1
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded num-complex v0.4.2
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded cuid-util v0.1.0
[INFO] [stderr]   Downloaded base36 v0.0.1
[INFO] [stderr]   Downloaded num_cpus v1.15.0
[INFO] [stderr]   Downloaded base-x v0.2.11
[INFO] [stderr]   Downloaded wait-timeout v0.2.0
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.2
[INFO] [stderr]   Downloaded itoa v1.0.5
[INFO] [stderr]   Downloaded addr2line v0.19.0
[INFO] [stderr]   Downloaded csv-core v0.1.10
[INFO] [stderr]   Downloaded cc v1.0.78
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded serde_json v1.0.91
[INFO] [stderr]   Downloaded object v0.30.2
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] [stderr]   Downloaded gimli v0.27.0
[INFO] [stderr]   Downloaded csv v1.1.6
[INFO] [stderr]   Downloaded sha3 v0.10.6
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.6
[INFO] [stderr]   Downloaded rayon v1.6.1
[INFO] [stderr]   Downloaded serde v1.0.152
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.13
[INFO] [stderr]   Downloaded rayon-core v1.10.1
[INFO] [stderr]   Downloaded ryu v1.0.12
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded either v1.8.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.14
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded serde_derive v1.0.152
[INFO] [stderr]   Downloaded keccak v0.1.3
[INFO] [stderr]   Downloaded memoffset v0.7.1
[INFO] [stderr]   Downloaded walkdir v2.3.2
[INFO] [stderr]   Downloaded quick-error v2.0.1
[INFO] [stderr]   Downloaded bit-vec v0.6.3
[INFO] [stderr]   Downloaded bit-set v0.5.3
[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
[INFO] [stderr]   Downloaded rusty-fork v0.3.0
[INFO] [stderr]   Downloaded cuid2 v0.1.0
[INFO] [stderr]   Downloaded hostname v0.3.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4fdec8108b7ae2a6bf6512f46b26c6289470771780e531c4bba9e0e0368fc9c
[INFO] running `Command { std: "docker" "start" "-a" "a4fdec8108b7ae2a6bf6512f46b26c6289470771780e531c4bba9e0e0368fc9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4fdec8108b7ae2a6bf6512f46b26c6289470771780e531c4bba9e0e0368fc9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4fdec8108b7ae2a6bf6512f46b26c6289470771780e531c4bba9e0e0368fc9c", kill_on_drop: false }`
[INFO] [stdout] a4fdec8108b7ae2a6bf6512f46b26c6289470771780e531c4bba9e0e0368fc9c
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01058705f2b92fd9431c29f255f02f765a73280b7fa25672a6dd1a6c2be275be
[INFO] running `Command { std: "docker" "start" "-a" "01058705f2b92fd9431c29f255f02f765a73280b7fa25672a6dd1a6c2be275be", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.50/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 num-bigint v0.4.3
[INFO] [stderr]    Compiling memoffset v0.7.1
[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" "01058705f2b92fd9431c29f255f02f765a73280b7fa25672a6dd1a6c2be275be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01058705f2b92fd9431c29f255f02f765a73280b7fa25672a6dd1a6c2be275be", kill_on_drop: false }`
[INFO] [stdout] 01058705f2b92fd9431c29f255f02f765a73280b7fa25672a6dd1a6c2be275be
