[INFO] cloning repository https://github.com/basaandewiel/ditto_rust_cross_arm7
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/basaandewiel/ditto_rust_cross_arm7" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasaandewiel%2Fditto_rust_cross_arm7", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasaandewiel%2Fditto_rust_cross_arm7'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6af699dfad8536350c1d11422f013558079b770
[INFO] testing basaandewiel/ditto_rust_cross_arm7 against try#7af779037716ae4125ceabb429791b4cf5dd0a43 for pr-136932
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbasaandewiel%2Fditto_rust_cross_arm7" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/basaandewiel/ditto_rust_cross_arm7 on toolchain 7af779037716ae4125ceabb429791b4cf5dd0a43
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/basaandewiel/ditto_rust_cross_arm7
[INFO] finished tweaking git repo https://github.com/basaandewiel/ditto_rust_cross_arm7
[INFO] tweaked toml for git repo https://github.com/basaandewiel/ditto_rust_cross_arm7 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/basaandewiel/ditto_rust_cross_arm7 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" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded macro_rules_attribute v0.0.2
[INFO] [stderr]   Downloaded mini_paste-proc_macro v0.1.11
[INFO] [stderr]   Downloaded macro_rules_attribute-proc_macro v0.0.2
[INFO] [stderr]   Downloaded safer_ffi-proc_macro v0.0.5
[INFO] [stderr]   Downloaded mini_paste v0.1.11
[INFO] [stderr]   Downloaded dittolive-ditto-sys v3.0.4
[INFO] [stderr]   Downloaded cratesio-placeholder-package v0.0.0
[INFO] [stderr]   Downloaded ext-trait v1.0.1
[INFO] [stderr]   Downloaded serde-transcode v1.1.1
[INFO] [stderr]   Downloaded uninit v0.3.0
[INFO] [stderr]   Downloaded dittolive-ditto v3.0.4
[INFO] [stderr]   Downloaded safer-ffi v0.0.5
[INFO] [stderr]   Downloaded ext-trait-proc_macros v1.0.1
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c7724e765846afcd38f4b4533efdbee2ab36bdbf4e1f9a9e95f7667e1d915b4
[INFO] running `Command { std: "docker" "start" "-a" "1c7724e765846afcd38f4b4533efdbee2ab36bdbf4e1f9a9e95f7667e1d915b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c7724e765846afcd38f4b4533efdbee2ab36bdbf4e1f9a9e95f7667e1d915b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c7724e765846afcd38f4b4533efdbee2ab36bdbf4e1f9a9e95f7667e1d915b4", kill_on_drop: false }`
[INFO] [stdout] 1c7724e765846afcd38f4b4533efdbee2ab36bdbf4e1f9a9e95f7667e1d915b4
[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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92a7d04dd1d4ab924a6734ad45491d7934bf480be2394d4a2656feaaac89d13c
[INFO] running `Command { std: "docker" "start" "-a" "92a7d04dd1d4ab924a6734ad45491d7934bf480be2394d4a2656feaaac89d13c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling mini_paste-proc_macro v0.1.11
[INFO] [stderr]    Compiling dittolive-ditto-sys v3.0.4
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]    Compiling safer_ffi-proc_macro v0.0.5
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling unicode-width v0.1.10
[INFO] [stderr]    Compiling macro_rules_attribute-proc_macro v0.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling uninit v0.3.0
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling itoa v1.0.3
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling num-traits v0.2.15
[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-1949cf8c6b5b557f/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 proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling mini_paste v0.1.11
[INFO] [stderr]    Compiling macro_rules_attribute v0.0.2
[INFO] [stderr]    Compiling paste v1.0.9
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling iana-time-zone v0.1.50
[INFO] [stderr]    Compiling cratesio-placeholder-package v0.0.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "92a7d04dd1d4ab924a6734ad45491d7934bf480be2394d4a2656feaaac89d13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92a7d04dd1d4ab924a6734ad45491d7934bf480be2394d4a2656feaaac89d13c", kill_on_drop: false }`
[INFO] [stdout] 92a7d04dd1d4ab924a6734ad45491d7934bf480be2394d4a2656feaaac89d13c