[INFO] cloning repository https://github.com/qwertxzy/rem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qwertxzy/rem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqwertxzy%2Frem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqwertxzy%2Frem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1355d1502f7782b887c5eb93cd06cc26e5fc0b48
[INFO] checking qwertxzy/rem against master#f82664191d0e8764b7435b9d72eb0e366b8b1464 for pr-83354
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqwertxzy%2Frem" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/qwertxzy/rem on toolchain f82664191d0e8764b7435b9d72eb0e366b8b1464
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/qwertxzy/rem
[INFO] finished tweaking git repo https://github.com/qwertxzy/rem
[INFO] tweaked toml for git repo https://github.com/qwertxzy/rem written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/qwertxzy/rem already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "fetch" "--locked" "--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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94fa865bb9312799d2db8f895189e827a216f339cf18187a956b9639d489b68a
[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" "94fa865bb9312799d2db8f895189e827a216f339cf18187a956b9639d489b68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94fa865bb9312799d2db8f895189e827a216f339cf18187a956b9639d489b68a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94fa865bb9312799d2db8f895189e827a216f339cf18187a956b9639d489b68a", kill_on_drop: false }`
[INFO] [stdout] 94fa865bb9312799d2db8f895189e827a216f339cf18187a956b9639d489b68a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+f82664191d0e8764b7435b9d72eb0e366b8b1464" "check" "--frozen" "--all" "--all-targets" "--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] 7a0e04cdb11f83112d0816d8fc24801b46344c8116b7ce85039ac7a2af22b365
[INFO] running `Command { std: "docker" "start" "-a" "7a0e04cdb11f83112d0816d8fc24801b46344c8116b7ce85039ac7a2af22b365", kill_on_drop: false }`
[INFO] [stderr]     Checking rem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0616]: field `GPR` of struct `CPU` is private
[INFO] [stdout]   --> src/exceptionprocessor.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let syscall_number = cpu.GPR[2]; //read the syscall number from $v0
[INFO] [stdout]    |                                  ^^^ private field
[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 E0616`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rem`
[INFO] [stdout] error[E0616]: field `GPR` of struct `CPU` is private
[INFO] [stdout]   --> src/exceptionprocessor.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let syscall_number = cpu.GPR[2]; //read the syscall number from $v0
[INFO] [stdout]    |                                  ^^^ private field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0616`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7a0e04cdb11f83112d0816d8fc24801b46344c8116b7ce85039ac7a2af22b365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a0e04cdb11f83112d0816d8fc24801b46344c8116b7ce85039ac7a2af22b365", kill_on_drop: false }`
[INFO] [stdout] 7a0e04cdb11f83112d0816d8fc24801b46344c8116b7ce85039ac7a2af22b365