[INFO] fetching crate gcmodule_derive 0.3.3...
[INFO] checking gcmodule_derive-0.3.3 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate gcmodule_derive 0.3.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gcmodule_derive 0.3.3 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gcmodule_derive 0.3.3
[INFO] finished tweaking crates.io crate gcmodule_derive 0.3.3
[INFO] tweaked toml for crates.io crate gcmodule_derive 0.3.3 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a268ef3455978f33c8bd834c338be1ac611aa4dfff075c5c348c4617ce38e05b
[INFO] running `Command { std: "docker" "start" "-a" "a268ef3455978f33c8bd834c338be1ac611aa4dfff075c5c348c4617ce38e05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a268ef3455978f33c8bd834c338be1ac611aa4dfff075c5c348c4617ce38e05b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a268ef3455978f33c8bd834c338be1ac611aa4dfff075c5c348c4617ce38e05b", kill_on_drop: false }`
[INFO] [stdout] a268ef3455978f33c8bd834c338be1ac611aa4dfff075c5c348c4617ce38e05b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08014f4bd6a3d7545926f24d6e9873a0ae3825d8617f0b99c1741b2e7b68e0f5
[INFO] running `Command { std: "docker" "start" "-a" "08014f4bd6a3d7545926f24d6e9873a0ae3825d8617f0b99c1741b2e7b68e0f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking unicode-xid v0.2.2
[INFO] [stderr]     Checking quote v1.0.9
[INFO] [stderr]     Checking gcmodule_derive v0.3.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `gcmodule`
[INFO] [stdout]  --> tests/trace.rs:8:14
[INFO] [stdout]   |
[INFO] [stdout] 8 |     #[derive(DeriveTrace)]
[INFO] [stdout]   |              ^^^^^^^^^^^ can't find crate
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `DeriveTrace` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0463`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `gcmodule_derive`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "08014f4bd6a3d7545926f24d6e9873a0ae3825d8617f0b99c1741b2e7b68e0f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08014f4bd6a3d7545926f24d6e9873a0ae3825d8617f0b99c1741b2e7b68e0f5", kill_on_drop: false }`
[INFO] [stdout] 08014f4bd6a3d7545926f24d6e9873a0ae3825d8617f0b99c1741b2e7b68e0f5