[INFO] fetching crate mailproc 0.3.2...
[INFO] checking mailproc-0.3.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate mailproc 0.3.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate mailproc 0.3.2 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 mailproc 0.3.2
[INFO] finished tweaking crates.io crate mailproc 0.3.2
[INFO] tweaked toml for crates.io crate mailproc 0.3.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate mailproc 0.3.2 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simplelog v0.12.0
[INFO] [stderr]   Downloaded quoted_printable v0.4.6
[INFO] [stderr]   Downloaded serde_derive v1.0.151
[INFO] [stderr]   Downloaded serde v1.0.151
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8faa7aaf1e1ecf028e77a17260d9e1d79ca4a8d18902d2abf555b7a6e56a2136
[INFO] running `Command { std: "docker" "start" "-a" "8faa7aaf1e1ecf028e77a17260d9e1d79ca4a8d18902d2abf555b7a6e56a2136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8faa7aaf1e1ecf028e77a17260d9e1d79ca4a8d18902d2abf555b7a6e56a2136", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8faa7aaf1e1ecf028e77a17260d9e1d79ca4a8d18902d2abf555b7a6e56a2136", kill_on_drop: false }`
[INFO] [stdout] 8faa7aaf1e1ecf028e77a17260d9e1d79ca4a8d18902d2abf555b7a6e56a2136
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3117e7047b6011334aa24875eddf015ba722fbd6631c32ca10ec6074dc4b617
[INFO] running `Command { std: "docker" "start" "-a" "f3117e7047b6011334aa24875eddf015ba722fbd6631c32ca10ec6074dc4b617", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.151
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking quoted_printable v0.4.6
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking data-encoding v2.3.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking subprocess v0.2.9
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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" "f3117e7047b6011334aa24875eddf015ba722fbd6631c32ca10ec6074dc4b617", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3117e7047b6011334aa24875eddf015ba722fbd6631c32ca10ec6074dc4b617", kill_on_drop: false }`
[INFO] [stdout] f3117e7047b6011334aa24875eddf015ba722fbd6631c32ca10ec6074dc4b617
[INFO] checking mailproc-0.3.2 against try#72eda894eb3548c7ba774079ce0afab42958d4ee for pr-121848-1
[INFO] extracting crate mailproc 0.3.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate mailproc 0.3.2 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 mailproc 0.3.2
[INFO] finished tweaking crates.io crate mailproc 0.3.2
[INFO] tweaked toml for crates.io crate mailproc 0.3.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate mailproc 0.3.2 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" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 115fc6f8def665a160c4d6d4863d64996a16bc13c33515d964a7ed145fb4f0ea
[INFO] running `Command { std: "docker" "start" "-a" "115fc6f8def665a160c4d6d4863d64996a16bc13c33515d964a7ed145fb4f0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "115fc6f8def665a160c4d6d4863d64996a16bc13c33515d964a7ed145fb4f0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "115fc6f8def665a160c4d6d4863d64996a16bc13c33515d964a7ed145fb4f0ea", kill_on_drop: false }`
[INFO] [stdout] 115fc6f8def665a160c4d6d4863d64996a16bc13c33515d964a7ed145fb4f0ea
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+72eda894eb3548c7ba774079ce0afab42958d4ee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 955b119cb956f07549eb0ec8caab84836f046d9d9e5b0eeb3caeaffb93cf0bd7
[INFO] running `Command { std: "docker" "start" "-a" "955b119cb956f07549eb0ec8caab84836f046d9d9e5b0eeb3caeaffb93cf0bd7", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling encoding_rs v0.8.31
[INFO] [stderr]    Compiling serde v1.0.151
[INFO] [stderr]    Compiling unicode-segmentation v1.10.0
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling serde_derive v1.0.151
[INFO] [stderr]     Checking num_threads v0.1.6
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]    Compiling time-macros v0.2.6
[INFO] [stderr]     Checking data-encoding v2.3.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking quoted_printable v0.4.6
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking subprocess v0.2.9
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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 regex v1.7.0
[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" "955b119cb956f07549eb0ec8caab84836f046d9d9e5b0eeb3caeaffb93cf0bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "955b119cb956f07549eb0ec8caab84836f046d9d9e5b0eeb3caeaffb93cf0bd7", kill_on_drop: false }`
[INFO] [stdout] 955b119cb956f07549eb0ec8caab84836f046d9d9e5b0eeb3caeaffb93cf0bd7
