[INFO] fetching crate blackpool 0.2.0...
[INFO] checking blackpool-0.2.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate blackpool 0.2.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate blackpool 0.2.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackpool 0.2.0
[INFO] finished tweaking crates.io crate blackpool 0.2.0
[INFO] tweaked toml for crates.io crate blackpool 0.2.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate blackpool 0.2.0 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver v1.0.14
[INFO] [stderr]   Downloaded test-generator v0.3.0
[INFO] [stderr]   Downloaded volmark v0.1.0
[INFO] [stderr]   Downloaded assert_approx_eq v1.1.0
[INFO] [stderr]   Downloaded cpu-time v1.0.0
[INFO] [stderr]   Downloaded function_name-proc-macro v0.3.0
[INFO] [stderr]   Downloaded function_name v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 23bb1fbba3010a11232503baa58edd1e046b0adc6065d26939680042f8a20816
[INFO] running `Command { std: "docker" "start" "-a" "23bb1fbba3010a11232503baa58edd1e046b0adc6065d26939680042f8a20816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "23bb1fbba3010a11232503baa58edd1e046b0adc6065d26939680042f8a20816", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23bb1fbba3010a11232503baa58edd1e046b0adc6065d26939680042f8a20816", kill_on_drop: false }`
[INFO] [stdout] 23bb1fbba3010a11232503baa58edd1e046b0adc6065d26939680042f8a20816
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0388af41a5823472c021045e31553f801d8d9ad9478511e8804f441ab91154f3
[INFO] running `Command { std: "docker" "start" "-a" "0388af41a5823472c021045e31553f801d8d9ad9478511e8804f441ab91154f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling function_name-proc-macro v0.3.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking function_name v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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: 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" "0388af41a5823472c021045e31553f801d8d9ad9478511e8804f441ab91154f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0388af41a5823472c021045e31553f801d8d9ad9478511e8804f441ab91154f3", kill_on_drop: false }`
[INFO] [stdout] 0388af41a5823472c021045e31553f801d8d9ad9478511e8804f441ab91154f3
[INFO] checking blackpool-0.2.0 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate blackpool 0.2.0 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate blackpool 0.2.0 on toolchain 72eda894eb3548c7ba774079ce0afab42958d4ee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blackpool 0.2.0
[INFO] finished tweaking crates.io crate blackpool 0.2.0
[INFO] tweaked toml for crates.io crate blackpool 0.2.0 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate blackpool 0.2.0 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 58130057c6cbfe9f624db88a44eef9dc667f0565c6bfd7b4a0014a3af7213694
[INFO] running `Command { std: "docker" "start" "-a" "58130057c6cbfe9f624db88a44eef9dc667f0565c6bfd7b4a0014a3af7213694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "58130057c6cbfe9f624db88a44eef9dc667f0565c6bfd7b4a0014a3af7213694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58130057c6cbfe9f624db88a44eef9dc667f0565c6bfd7b4a0014a3af7213694", kill_on_drop: false }`
[INFO] [stdout] 58130057c6cbfe9f624db88a44eef9dc667f0565c6bfd7b4a0014a3af7213694
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78da9b803795f46a72aeee55c3381c3ff0dd1e3f0867a2daf488b425af55e850
[INFO] running `Command { std: "docker" "start" "-a" "78da9b803795f46a72aeee55c3381c3ff0dd1e3f0867a2daf488b425af55e850", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling serde_derive v1.0.147
[INFO] [stderr]    Compiling function_name-proc-macro v0.3.0
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling serde v1.0.147
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.19
[INFO] [stderr]     Checking function_name v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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: 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" "78da9b803795f46a72aeee55c3381c3ff0dd1e3f0867a2daf488b425af55e850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78da9b803795f46a72aeee55c3381c3ff0dd1e3f0867a2daf488b425af55e850", kill_on_drop: false }`
[INFO] [stdout] 78da9b803795f46a72aeee55c3381c3ff0dd1e3f0867a2daf488b425af55e850
