[INFO] fetching crate implied-vol 2.0.0...
[INFO] testing implied-vol-2.0.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate implied-vol 2.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate implied-vol 2.0.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate implied-vol 2.0.0
[INFO] tweaked toml for crates.io crate implied-vol 2.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate implied-vol 2.0.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate implied-vol 2.0.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 244ed45e1decbd70d82d7f1a8fbfbc54a40b1a9b4343612c8ce076d00ae38eed
[INFO] running `Command { std: "docker" "start" "-a" "244ed45e1decbd70d82d7f1a8fbfbc54a40b1a9b4343612c8ce076d00ae38eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "244ed45e1decbd70d82d7f1a8fbfbc54a40b1a9b4343612c8ce076d00ae38eed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "244ed45e1decbd70d82d7f1a8fbfbc54a40b1a9b4343612c8ce076d00ae38eed", kill_on_drop: false }`
[INFO] [stdout] 244ed45e1decbd70d82d7f1a8fbfbc54a40b1a9b4343612c8ce076d00ae38eed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae78ff1d78d86716044464b146ce080b7d3fae8c5b75b41fe935245a02f10ded
[INFO] running `Command { std: "docker" "start" "-a" "ae78ff1d78d86716044464b146ce080b7d3fae8c5b75b41fe935245a02f10ded", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.97
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling prettyplease v0.2.36
[INFO] [stderr]    Compiling rustversion v1.0.22
[INFO] [stderr]    Compiling implied-vol v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling darling_core v0.21.2
[INFO] [stderr]    Compiling darling_macro v0.21.2
[INFO] [stderr] error: could not compile `darling_macro` (lib)
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   could not execute process `/opt/rustwide/rustup-home/toolchains/b83b707f97d809763b7861afa7638871f3339a33/bin/rustc --crate-name darling_macro --edition=2021 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/darling_macro-0.21.2/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=d1c6cec1a349ec2b -C extra-filename=-2839f8068c582f91 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern darling_core=/opt/rustwide/target/debug/deps/libdarling_core-0eee93a5556b8c45.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-6a1fe40cce5b6ca8.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-8a568ddbe39c3c2e.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" "ae78ff1d78d86716044464b146ce080b7d3fae8c5b75b41fe935245a02f10ded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae78ff1d78d86716044464b146ce080b7d3fae8c5b75b41fe935245a02f10ded", kill_on_drop: false }`
[INFO] [stdout] ae78ff1d78d86716044464b146ce080b7d3fae8c5b75b41fe935245a02f10ded