[INFO] fetching crate objc2-encode 1.1.0...
[INFO] testing objc2-encode-1.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate objc2-encode 1.1.0 into /workspace/builds/worker-34/source
[INFO] validating manifest of crates.io crate objc2-encode 1.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate objc2-encode 1.1.0
[INFO] finished tweaking crates.io crate objc2-encode 1.1.0
[INFO] tweaked toml for crates.io crate objc2-encode 1.1.0 written to /workspace/builds/worker-34/source/Cargo.toml
[INFO] crate crates.io crate objc2-encode 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e313ca4af5d92408f8314ed4d6d370ae9425edbf177b7e4566d227398a594b34
[INFO] running `Command { std: "docker" "start" "-a" "e313ca4af5d92408f8314ed4d6d370ae9425edbf177b7e4566d227398a594b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e313ca4af5d92408f8314ed4d6d370ae9425edbf177b7e4566d227398a594b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e313ca4af5d92408f8314ed4d6d370ae9425edbf177b7e4566d227398a594b34", kill_on_drop: false }`
[INFO] [stdout] e313ca4af5d92408f8314ed4d6d370ae9425edbf177b7e4566d227398a594b34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2aadba43220819655ecba0744fa3748539fa9ba9004973ba09ff8cd77bac1121
[INFO] running `Command { std: "docker" "start" "-a" "2aadba43220819655ecba0744fa3748539fa9ba9004973ba09ff8cd77bac1121", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling objc2-encode v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.40s
[INFO] running `Command { std: "docker" "inspect" "2aadba43220819655ecba0744fa3748539fa9ba9004973ba09ff8cd77bac1121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2aadba43220819655ecba0744fa3748539fa9ba9004973ba09ff8cd77bac1121", kill_on_drop: false }`
[INFO] [stdout] 2aadba43220819655ecba0744fa3748539fa9ba9004973ba09ff8cd77bac1121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-34/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d94c2e0050a969f526ef55f083602587b93ada9386a000ac8d32c2c4fadf294c
[INFO] running `Command { std: "docker" "start" "-a" "d94c2e0050a969f526ef55f083602587b93ada9386a000ac8d32c2c4fadf294c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling objc2-encode v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0463]: can't find crate for `objc_encode`
[INFO] [stdout]  --> examples/core_graphics.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate objc_encode;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
[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 `objc2-encode` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d94c2e0050a969f526ef55f083602587b93ada9386a000ac8d32c2c4fadf294c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94c2e0050a969f526ef55f083602587b93ada9386a000ac8d32c2c4fadf294c", kill_on_drop: false }`
[INFO] [stdout] d94c2e0050a969f526ef55f083602587b93ada9386a000ac8d32c2c4fadf294c