[INFO] fetching crate octad 0.0.51...
[INFO] checking octad-0.0.51 against try#804fff1ae95da9d03bd44eee27f258020a575dab for pr-146013
[INFO] extracting crate octad 0.0.51 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate octad 0.0.51
[INFO] finished tweaking crates.io crate octad 0.0.51
[INFO] tweaked toml for crates.io crate octad 0.0.51 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate octad 0.0.51 on toolchain 804fff1ae95da9d03bd44eee27f258020a575dab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate octad 0.0.51 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" "+804fff1ae95da9d03bd44eee27f258020a575dab" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19edd03a5c0e1eb20d26af7d8414595d91dfcf9ba018947312f5552664520455
[INFO] running `Command { std: "docker" "start" "-a" "19edd03a5c0e1eb20d26af7d8414595d91dfcf9ba018947312f5552664520455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19edd03a5c0e1eb20d26af7d8414595d91dfcf9ba018947312f5552664520455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19edd03a5c0e1eb20d26af7d8414595d91dfcf9ba018947312f5552664520455", kill_on_drop: false }`
[INFO] [stdout] 19edd03a5c0e1eb20d26af7d8414595d91dfcf9ba018947312f5552664520455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+804fff1ae95da9d03bd44eee27f258020a575dab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7cd84ce35124a6bb3ed656ff5f6f95eb8c8fbfbab73abdcf86bd45aa206bd6b
[INFO] running `Command { std: "docker" "start" "-a" "a7cd84ce35124a6bb3ed656ff5f6f95eb8c8fbfbab73abdcf86bd45aa206bd6b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.95
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr] error: could not compile `zerocopy-derive` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/804fff1ae95da9d03bd44eee27f258020a575dab/bin/rustc --crate-name zerocopy_derive --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/zerocopy-derive-0.7.35/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=7625154cc559fb9b -C extra-filename=-1d6462c24b6f0cc6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f77d51280df25a86.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-edc2ca4ef472bb31.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-40e8d7b5b32a1298.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (never executed)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] running `Command { std: "docker" "inspect" "a7cd84ce35124a6bb3ed656ff5f6f95eb8c8fbfbab73abdcf86bd45aa206bd6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7cd84ce35124a6bb3ed656ff5f6f95eb8c8fbfbab73abdcf86bd45aa206bd6b", kill_on_drop: false }`
[INFO] [stdout] a7cd84ce35124a6bb3ed656ff5f6f95eb8c8fbfbab73abdcf86bd45aa206bd6b