[INFO] fetching crate ai-dataloader 0.6.1...
[INFO] checking ai-dataloader-0.6.1 against master#3139ff09e9d07f7700f8d15ed25a231e29c43627 for pr-121848-3
[INFO] extracting crate ai-dataloader 0.6.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate ai-dataloader 0.6.1 on toolchain 3139ff09e9d07f7700f8d15ed25a231e29c43627
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ai-dataloader 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ai-dataloader 0.6.1
[INFO] tweaked toml for crates.io crate ai-dataloader 0.6.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate ai-dataloader 0.6.1 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" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c38d3669ad3074e331e049ad95fe66d946a9a32441ee5320e9162714c85b8d5c
[INFO] running `Command { std: "docker" "start" "-a" "c38d3669ad3074e331e049ad95fe66d946a9a32441ee5320e9162714c85b8d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c38d3669ad3074e331e049ad95fe66d946a9a32441ee5320e9162714c85b8d5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c38d3669ad3074e331e049ad95fe66d946a9a32441ee5320e9162714c85b8d5c", kill_on_drop: false }`
[INFO] [stdout] c38d3669ad3074e331e049ad95fe66d946a9a32441ee5320e9162714c85b8d5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+3139ff09e9d07f7700f8d15ed25a231e29c43627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c0184b245a125cc583ecfe77a2f658cccd427f7873a74aba6aa504d747e3b82
[INFO] running `Command { std: "docker" "start" "-a" "6c0184b245a125cc583ecfe77a2f658cccd427f7873a74aba6aa504d747e3b82", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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 lock_api v0.4.9
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]     Checking wide v0.7.8
[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" "6c0184b245a125cc583ecfe77a2f658cccd427f7873a74aba6aa504d747e3b82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c0184b245a125cc583ecfe77a2f658cccd427f7873a74aba6aa504d747e3b82", kill_on_drop: false }`
[INFO] [stdout] 6c0184b245a125cc583ecfe77a2f658cccd427f7873a74aba6aa504d747e3b82
[INFO] checking ai-dataloader-0.6.1 against try#a2cff3b7a9661c90ec0d581d3f3a69bb97c11138 for pr-121848-3
[INFO] extracting crate ai-dataloader 0.6.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate ai-dataloader 0.6.1 on toolchain a2cff3b7a9661c90ec0d581d3f3a69bb97c11138
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ai-dataloader 0.6.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate ai-dataloader 0.6.1
[INFO] tweaked toml for crates.io crate ai-dataloader 0.6.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate ai-dataloader 0.6.1 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" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51704dc6d9d345556ad6b0a946c2fce1362d8d0ca00dc18ff36444dff5f89dfe
[INFO] running `Command { std: "docker" "start" "-a" "51704dc6d9d345556ad6b0a946c2fce1362d8d0ca00dc18ff36444dff5f89dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51704dc6d9d345556ad6b0a946c2fce1362d8d0ca00dc18ff36444dff5f89dfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51704dc6d9d345556ad6b0a946c2fce1362d8d0ca00dc18ff36444dff5f89dfe", kill_on_drop: false }`
[INFO] [stdout] 51704dc6d9d345556ad6b0a946c2fce1362d8d0ca00dc18ff36444dff5f89dfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+a2cff3b7a9661c90ec0d581d3f3a69bb97c11138" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee2a21f5da63a968fe7a88bcc62c07ac68de20c1c2ef2656fd6e3b2edd86ee50
[INFO] running `Command { std: "docker" "start" "-a" "ee2a21f5da63a968fe7a88bcc62c07ac68de20c1c2ef2656fd6e3b2edd86ee50", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]    Compiling libm v0.2.5
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]     Checking miniz_oxide v0.5.4
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]    Compiling paste v1.0.12
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking weezl v0.1.7
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]     Checking simd-adler32 v0.3.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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 crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]     Checking flate2 v1.0.24
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking futures-sink v0.3.27
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling rustix v0.38.8
[INFO] [stderr]     Checking zune-inflate v0.2.51
[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" "ee2a21f5da63a968fe7a88bcc62c07ac68de20c1c2ef2656fd6e3b2edd86ee50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee2a21f5da63a968fe7a88bcc62c07ac68de20c1c2ef2656fd6e3b2edd86ee50", kill_on_drop: false }`
[INFO] [stdout] ee2a21f5da63a968fe7a88bcc62c07ac68de20c1c2ef2656fd6e3b2edd86ee50
