[INFO] fetching crate gradescope-submit 0.1.2...
[INFO] checking gradescope-submit-0.1.2 against beta for pr-78714
[INFO] extracting crate gradescope-submit 0.1.2 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate gradescope-submit 0.1.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gradescope-submit 0.1.2
[INFO] finished tweaking crates.io crate gradescope-submit 0.1.2
[INFO] tweaked toml for crates.io crate gradescope-submit 0.1.2 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate gradescope-submit 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6d4b40f6c7b5238de8526d6cc47839aa922a80fb187802f2252dc536e85ea31d
[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" "6d4b40f6c7b5238de8526d6cc47839aa922a80fb187802f2252dc536e85ea31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6d4b40f6c7b5238de8526d6cc47839aa922a80fb187802f2252dc536e85ea31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d4b40f6c7b5238de8526d6cc47839aa922a80fb187802f2252dc536e85ea31d", kill_on_drop: false }`
[INFO] [stdout] 6d4b40f6c7b5238de8526d6cc47839aa922a80fb187802f2252dc536e85ea31d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] c65fbe52e2efe5ff37bc005f96c218e6cd0b61e5e0f1a28ba89c0e15cdfa37b9
[INFO] running `Command { std: "docker" "start" "-a" "c65fbe52e2efe5ff37bc005f96c218e6cd0b61e5e0f1a28ba89c0e15cdfa37b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.45
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]     Checking pin-project-lite v0.1.10
[INFO] [stderr]     Checking mac v0.1.1
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking thin-slice v0.1.1
[INFO] [stderr]     Checking ego-tree v0.6.2
[INFO] [stderr]     Checking urlencoding v1.1.1
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking futures-task v0.3.6
[INFO] [stderr]     Checking dtoa-short v0.3.2
[INFO] [stderr]     Checking servo_arc v0.1.1
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking tracing v0.1.21
[INFO] [stderr]     Checking futf v0.1.4
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-channel v0.3.6
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking rpassword v0.4.2
[INFO] [stderr]     Checking tendril v0.4.1
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]    Compiling phf_codegen v0.8.0
[INFO] [stderr]    Compiling string_cache_codegen v0.5.1
[INFO] [stderr]    Compiling selectors v0.22.0
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling pin-project-internal v0.4.27
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling html5ever v0.25.1
[INFO] [stderr]    Compiling cssparser-macros v0.6.0
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking time v0.2.22
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking cookie v0.14.2
[INFO] [stderr]     Checking pin-project v0.4.27
[INFO] [stderr]     Checking futures-util v0.3.6
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]     Checking string_cache v0.8.0
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking cookie_store v0.12.0
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]    Compiling markup5ever v0.10.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest-vcapra1-add-cookies v0.10.9
[INFO] [stderr]     Checking scraper v0.12.0
[INFO] [stderr]     Checking gradescope-submit v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `Command { std: "docker" "inspect" "c65fbe52e2efe5ff37bc005f96c218e6cd0b61e5e0f1a28ba89c0e15cdfa37b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c65fbe52e2efe5ff37bc005f96c218e6cd0b61e5e0f1a28ba89c0e15cdfa37b9", kill_on_drop: false }`
[INFO] [stdout] c65fbe52e2efe5ff37bc005f96c218e6cd0b61e5e0f1a28ba89c0e15cdfa37b9