[INFO] fetching crate experimental-test 0.1.7...
[INFO] testing experimental-test-0.1.7 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate experimental-test 0.1.7 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate experimental-test 0.1.7 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 experimental-test 0.1.7
[INFO] finished tweaking crates.io crate experimental-test 0.1.7
[INFO] tweaked toml for crates.io crate experimental-test 0.1.7 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate experimental-test 0.1.7 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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d84d9a106cd3228e672465cdadce830d1d73930d69d5a031ef362e5e23a30e8b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d84d9a106cd3228e672465cdadce830d1d73930d69d5a031ef362e5e23a30e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d84d9a106cd3228e672465cdadce830d1d73930d69d5a031ef362e5e23a30e8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d84d9a106cd3228e672465cdadce830d1d73930d69d5a031ef362e5e23a30e8b", kill_on_drop: false }`
[INFO] [stdout] d84d9a106cd3228e672465cdadce830d1d73930d69d5a031ef362e5e23a30e8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] cbf19aa1c4ebf634a9ddc395aeb7f09e86d849d09629b70a926b9ada3b19c2c4
[INFO] running `Command { std: "docker" "start" "-a" "cbf19aa1c4ebf634a9ddc395aeb7f09e86d849d09629b70a926b9ada3b19c2c4", kill_on_drop: false }`
[INFO] [stderr]    Compiling experimental-test v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] error: couldn't read main.rs: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `experimental-test` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "cbf19aa1c4ebf634a9ddc395aeb7f09e86d849d09629b70a926b9ada3b19c2c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbf19aa1c4ebf634a9ddc395aeb7f09e86d849d09629b70a926b9ada3b19c2c4", kill_on_drop: false }`
[INFO] [stdout] cbf19aa1c4ebf634a9ddc395aeb7f09e86d849d09629b70a926b9ada3b19c2c4