[INFO] fetching crate every_variant_macro 0.3.1...
[INFO] checking every_variant_macro-0.3.1 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate every_variant_macro 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate every_variant_macro 0.3.1
[INFO] finished tweaking crates.io crate every_variant_macro 0.3.1
[INFO] tweaked toml for crates.io crate every_variant_macro 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate every_variant_macro 0.3.1 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.106)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f8b0b0b5ce2ed8db2f39696b0657a71656fb55d02f94057b0a3fc9452130d52
[INFO] running `Command { std: "docker" "start" "-a" "6f8b0b0b5ce2ed8db2f39696b0657a71656fb55d02f94057b0a3fc9452130d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f8b0b0b5ce2ed8db2f39696b0657a71656fb55d02f94057b0a3fc9452130d52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8b0b0b5ce2ed8db2f39696b0657a71656fb55d02f94057b0a3fc9452130d52", kill_on_drop: false }`
[INFO] [stdout] 6f8b0b0b5ce2ed8db2f39696b0657a71656fb55d02f94057b0a3fc9452130d52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20b73c0107b34bff9e8c0584f5ff4c194053eab8a3d88d08caefff3b963e4c7f
[INFO] running `Command { std: "docker" "start" "-a" "20b73c0107b34bff9e8c0584f5ff4c194053eab8a3d88d08caefff3b963e4c7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr] error: could not compile `proc-macro-error` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/8c32e313cccf7df531e2d49ffb8227bb92304aee/bin/rustc --crate-name proc_macro_error --edition=2018 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro-error-1.0.4/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata -C embed-bitcode=no --cfg 'feature="default"' --cfg 'feature="syn"' --cfg 'feature="syn-error"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "syn", "syn-error"))' -C metadata=14c03ad13318bf02 -C extra-filename=-21368b361d6fb9ad --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro_error_attr=/opt/rustwide/target/debug/deps/libproc_macro_error_attr-d1e8030132f8b282.so --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-2ecaf3446ffe436a.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-c819c24d9f58cba8.rmeta --extern syn=/opt/rustwide/target/debug/deps/libsyn-6e40383bb5df53aa.rmeta --cap-lints allow --cap-lints=forbid --cfg skip_ui_tests` (never executed)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No such file or directory (os error 2)
[INFO] running `Command { std: "docker" "inspect" "20b73c0107b34bff9e8c0584f5ff4c194053eab8a3d88d08caefff3b963e4c7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20b73c0107b34bff9e8c0584f5ff4c194053eab8a3d88d08caefff3b963e4c7f", kill_on_drop: false }`
[INFO] [stdout] 20b73c0107b34bff9e8c0584f5ff4c194053eab8a3d88d08caefff3b963e4c7f