[INFO] fetching crate grouper-lib 0.1.11...
[INFO] checking grouper-lib-0.1.11 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate grouper-lib 0.1.11 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate grouper-lib 0.1.11 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 grouper-lib 0.1.11
[INFO] finished tweaking crates.io crate grouper-lib 0.1.11
[INFO] tweaked toml for crates.io crate grouper-lib 0.1.11 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate grouper-lib 0.1.11 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]  Downloading crates ...
[INFO] [stderr]   Downloaded csv v1.2.0
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] db2d7f234d0a20b69c12054d6011d778190e9c71052fdca52a8f1805a2a3779b
[INFO] running `Command { std: "docker" "start" "-a" "db2d7f234d0a20b69c12054d6011d778190e9c71052fdca52a8f1805a2a3779b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "db2d7f234d0a20b69c12054d6011d778190e9c71052fdca52a8f1805a2a3779b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db2d7f234d0a20b69c12054d6011d778190e9c71052fdca52a8f1805a2a3779b", kill_on_drop: false }`
[INFO] [stdout] db2d7f234d0a20b69c12054d6011d778190e9c71052fdca52a8f1805a2a3779b
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c906666ee5b0030afaaefaa2a76f942ad1f5eae6307c46ae13c447c324d7c90
[INFO] running `Command { std: "docker" "start" "-a" "3c906666ee5b0030afaaefaa2a76f942ad1f5eae6307c46ae13c447c324d7c90", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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" "3c906666ee5b0030afaaefaa2a76f942ad1f5eae6307c46ae13c447c324d7c90", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c906666ee5b0030afaaefaa2a76f942ad1f5eae6307c46ae13c447c324d7c90", kill_on_drop: false }`
[INFO] [stdout] 3c906666ee5b0030afaaefaa2a76f942ad1f5eae6307c46ae13c447c324d7c90
[INFO] checking grouper-lib-0.1.11 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate grouper-lib 0.1.11 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate grouper-lib 0.1.11 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 grouper-lib 0.1.11
[INFO] finished tweaking crates.io crate grouper-lib 0.1.11
[INFO] tweaked toml for crates.io crate grouper-lib 0.1.11 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate crates.io crate grouper-lib 0.1.11 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-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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fac55c7572a27d7a8a46bee9e4b87bb02a3b0c23b9a7a92b46ae5e1e1b72a0f
[INFO] running `Command { std: "docker" "start" "-a" "4fac55c7572a27d7a8a46bee9e4b87bb02a3b0c23b9a7a92b46ae5e1e1b72a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fac55c7572a27d7a8a46bee9e4b87bb02a3b0c23b9a7a92b46ae5e1e1b72a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fac55c7572a27d7a8a46bee9e4b87bb02a3b0c23b9a7a92b46ae5e1e1b72a0f", kill_on_drop: false }`
[INFO] [stdout] 4fac55c7572a27d7a8a46bee9e4b87bb02a3b0c23b9a7a92b46ae5e1e1b72a0f
[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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05a389b749a8e94587ad999c9ca0e0736f45a4d40629e1b51f4738acd89e85ae
[INFO] running `Command { std: "docker" "start" "-a" "05a389b749a8e94587ad999c9ca0e0736f45a4d40629e1b51f4738acd89e85ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling serde_json v1.0.93
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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" "05a389b749a8e94587ad999c9ca0e0736f45a4d40629e1b51f4738acd89e85ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a389b749a8e94587ad999c9ca0e0736f45a4d40629e1b51f4738acd89e85ae", kill_on_drop: false }`
[INFO] [stdout] 05a389b749a8e94587ad999c9ca0e0736f45a4d40629e1b51f4738acd89e85ae
