[INFO] fetching crate unconst_trait_impl 0.1.5...
[INFO] testing unconst_trait_impl-0.1.5 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate unconst_trait_impl 0.1.5 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate unconst_trait_impl 0.1.5
[INFO] finished tweaking crates.io crate unconst_trait_impl 0.1.5
[INFO] tweaked toml for crates.io crate unconst_trait_impl 0.1.5 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unconst_trait_impl 0.1.5 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 8ca2ea2088efbdeb91ce906a0fc12273d1fbaec181d5ef42f463c6cc670c06fd
[INFO] running `Command { std: "docker" "start" "-a" "8ca2ea2088efbdeb91ce906a0fc12273d1fbaec181d5ef42f463c6cc670c06fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ca2ea2088efbdeb91ce906a0fc12273d1fbaec181d5ef42f463c6cc670c06fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ca2ea2088efbdeb91ce906a0fc12273d1fbaec181d5ef42f463c6cc670c06fd", kill_on_drop: false }`
[INFO] [stdout] 8ca2ea2088efbdeb91ce906a0fc12273d1fbaec181d5ef42f463c6cc670c06fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] f1da36acc10e41118e307feab18af0d4f3245d46e179e429659fbb656adbd0b4
[INFO] running `Command { std: "docker" "start" "-a" "f1da36acc10e41118e307feab18af0d4f3245d46e179e429659fbb656adbd0b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling unconst_trait_impl v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `inner` is never used
[INFO] [stdout]   --> src/to_tokens/filter_attrs.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub(super) trait FilterAttrs<'a> {
[INFO] [stdout]    |                  ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn inner(self) -> Self::Ret;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.35s
[INFO] running `Command { std: "docker" "inspect" "f1da36acc10e41118e307feab18af0d4f3245d46e179e429659fbb656adbd0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1da36acc10e41118e307feab18af0d4f3245d46e179e429659fbb656adbd0b4", kill_on_drop: false }`
[INFO] [stdout] f1da36acc10e41118e307feab18af0d4f3245d46e179e429659fbb656adbd0b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 081f720f61cfa58aac7ec34721823a6085fb7db0b2099cfdf90e7545a24bfff1
[INFO] running `Command { std: "docker" "start" "-a" "081f720f61cfa58aac7ec34721823a6085fb7db0b2099cfdf90e7545a24bfff1", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `quote v1.0.40`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `quote v1.0.40`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/quote-1.0.40`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "081f720f61cfa58aac7ec34721823a6085fb7db0b2099cfdf90e7545a24bfff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "081f720f61cfa58aac7ec34721823a6085fb7db0b2099cfdf90e7545a24bfff1", kill_on_drop: false }`
[INFO] [stdout] 081f720f61cfa58aac7ec34721823a6085fb7db0b2099cfdf90e7545a24bfff1