[INFO] fetching crate cuid 1.3.2...
[INFO] checking cuid-1.3.2 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate cuid 1.3.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate cuid 1.3.2 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "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-1-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base36 v0.0.1
[INFO] [stderr]   Downloaded cuid2 v0.1.0
[INFO] [stderr]   Downloaded cc v1.0.78
[INFO] [stderr]   Downloaded cuid-util v0.1.0
[INFO] [stderr]   Downloaded rand_xorshift v0.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded proptest v1.0.0
[INFO] [stderr]   Downloaded object v0.30.2
[INFO] [stderr]   Downloaded gimli v0.27.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dfd56b39ffa6549783a268747e19d1ad41c91f7198524c6521c1f9c83515606a
[INFO] running `Command { std: "docker" "start" "-a" "dfd56b39ffa6549783a268747e19d1ad41c91f7198524c6521c1f9c83515606a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dfd56b39ffa6549783a268747e19d1ad41c91f7198524c6521c1f9c83515606a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfd56b39ffa6549783a268747e19d1ad41c91f7198524c6521c1f9c83515606a", kill_on_drop: false }`
[INFO] [stdout] dfd56b39ffa6549783a268747e19d1ad41c91f7198524c6521c1f9c83515606a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e07ca7d3759c91e5bc52abf691a36e31b9bb8edfcee6075e5dd5e3d20b0256c
[INFO] running `Command { std: "docker" "start" "-a" "5e07ca7d3759c91e5bc52abf691a36e31b9bb8edfcee6075e5dd5e3d20b0256c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking libc v0.2.139
[INFO] [stderr]     Checking crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking gimli v0.27.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking memoffset v0.7.1
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]     Checking keccak v0.1.3
[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]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling rayon-core v1.10.1
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking match_cfg v0.1.0
[INFO] [stderr]     Checking itoa v1.0.5
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking wait-timeout v0.2.0
[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" "5e07ca7d3759c91e5bc52abf691a36e31b9bb8edfcee6075e5dd5e3d20b0256c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e07ca7d3759c91e5bc52abf691a36e31b9bb8edfcee6075e5dd5e3d20b0256c", kill_on_drop: false }`
[INFO] [stdout] 5e07ca7d3759c91e5bc52abf691a36e31b9bb8edfcee6075e5dd5e3d20b0256c
[INFO] checking cuid-1.3.2 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate cuid 1.3.2 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate cuid 1.3.2 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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-1-tc2/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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 64c20a022d3d5ae19e1392ad4d9dbc0ac2deaa89d6abc4de53b87dffdd0461a5
[INFO] running `Command { std: "docker" "start" "-a" "64c20a022d3d5ae19e1392ad4d9dbc0ac2deaa89d6abc4de53b87dffdd0461a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64c20a022d3d5ae19e1392ad4d9dbc0ac2deaa89d6abc4de53b87dffdd0461a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c20a022d3d5ae19e1392ad4d9dbc0ac2deaa89d6abc4de53b87dffdd0461a5", kill_on_drop: false }`
[INFO] [stdout] 64c20a022d3d5ae19e1392ad4d9dbc0ac2deaa89d6abc4de53b87dffdd0461a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23625c370940d79054904006d9374c88358c5c799352bbf05a7f54a24436bb70
[INFO] running `Command { std: "docker" "start" "-a" "23625c370940d79054904006d9374c88358c5c799352bbf05a7f54a24436bb70", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking libc v0.2.139
[INFO] [stderr]     Checking crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking gimli v0.27.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking memoffset v0.7.1
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking crossbeam-epoch v0.9.13
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking quick-error v2.0.1
[INFO] [stderr]     Checking ryu v1.0.12
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking keccak v0.1.3
[INFO] [stderr]    Compiling rayon-core v1.10.1
[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]     Checking either v1.8.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.6
[INFO] [stderr]     Checking base-x v0.2.11
[INFO] [stderr]     Checking itoa v1.0.5
[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]     Checking object v0.30.2
[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" "23625c370940d79054904006d9374c88358c5c799352bbf05a7f54a24436bb70", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23625c370940d79054904006d9374c88358c5c799352bbf05a7f54a24436bb70", kill_on_drop: false }`
[INFO] [stdout] 23625c370940d79054904006d9374c88358c5c799352bbf05a7f54a24436bb70
