[INFO] cloning repository https://github.com/sarvensis/dict-picker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sarvensis/dict-picker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarvensis%2Fdict-picker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarvensis%2Fdict-picker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 209145bb2698e1be8b1befea12dd51d1dd3561a7
[INFO] testing sarvensis/dict-picker against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsarvensis%2Fdict-picker" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/sarvensis/dict-picker
[INFO] finished tweaking git repo https://github.com/sarvensis/dict-picker
[INFO] tweaked toml for git repo https://github.com/sarvensis/dict-picker written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sarvensis/dict-picker on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sarvensis/dict-picker 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded target-lexicon v0.12.6
[INFO] [stderr]   Downloaded indoc v1.0.9
[INFO] [stderr]   Downloaded pyo3-macros v0.18.1
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.18.1
[INFO] [stderr]   Downloaded pyo3-build-config v0.18.1
[INFO] [stderr]   Downloaded unindent v0.1.11
[INFO] [stderr]   Downloaded pyo3-ffi v0.18.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.7
[INFO] [stderr]   Downloaded pyo3 v0.18.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b9c741d2421d587f33eecdee4b695b89f5ba016b32f8dc6ece8f6c40709a0a7
[INFO] running `Command { std: "docker" "start" "-a" "0b9c741d2421d587f33eecdee4b695b89f5ba016b32f8dc6ece8f6c40709a0a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b9c741d2421d587f33eecdee4b695b89f5ba016b32f8dc6ece8f6c40709a0a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b9c741d2421d587f33eecdee4b695b89f5ba016b32f8dc6ece8f6c40709a0a7", kill_on_drop: false }`
[INFO] [stdout] 0b9c741d2421d587f33eecdee4b695b89f5ba016b32f8dc6ece8f6c40709a0a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 822150f1f02435514835efbfb79d05c3d4af31a7dbd793c436998446b0ed3803
[INFO] running `Command { std: "docker" "start" "-a" "822150f1f02435514835efbfb79d05c3d4af31a7dbd793c436998446b0ed3803", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.12.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.7
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unindent v0.1.11
[INFO] [stderr]    Compiling indoc v1.0.9
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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] 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" "822150f1f02435514835efbfb79d05c3d4af31a7dbd793c436998446b0ed3803", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "822150f1f02435514835efbfb79d05c3d4af31a7dbd793c436998446b0ed3803", kill_on_drop: false }`
[INFO] [stdout] 822150f1f02435514835efbfb79d05c3d4af31a7dbd793c436998446b0ed3803