[INFO] cloning repository https://github.com/BITICPC/WaveJudge
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BITICPC/WaveJudge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBITICPC%2FWaveJudge", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBITICPC%2FWaveJudge'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 317c876647d0b01b250c80323b70d361e8752a96
[INFO] documenting BITICPC/WaveJudge against beta-2021-08-01 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBITICPC%2FWaveJudge" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/BITICPC/WaveJudge on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6/source/.cargo/config
[INFO] started tweaking git repo https://github.com/BITICPC/WaveJudge
[INFO] finished tweaking git repo https://github.com/BITICPC/WaveJudge
[INFO] tweaked toml for git repo https://github.com/BITICPC/WaveJudge written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/BITICPC/WaveJudge already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded seccomp-sys v0.1.3
[INFO] [stderr]   Downloaded rmp-serde v0.14.0
[INFO] [stderr]   Downloaded log4rs v0.9.0
[INFO] [stderr]   Downloaded sqlite v0.25.0
[INFO] [stderr]   Downloaded procfs v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34fd9f6a11208230bde400a1b336f89423d91f179b7778a9243643b1e915a915
[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" "34fd9f6a11208230bde400a1b336f89423d91f179b7778a9243643b1e915a915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34fd9f6a11208230bde400a1b336f89423d91f179b7778a9243643b1e915a915", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34fd9f6a11208230bde400a1b336f89423d91f179b7778a9243643b1e915a915", kill_on_drop: false }`
[INFO] [stdout] 34fd9f6a11208230bde400a1b336f89423d91f179b7778a9243643b1e915a915
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2021-08-01" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 5d67074a48a397367cb8ad415261a38a7c1509b22b2e1128c17d099b55968536
[INFO] running `Command { std: "docker" "start" "-a" "5d67074a48a397367cb8ad415261a38a7c1509b22b2e1128c17d099b55968536", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling seccomp-sys v0.1.3
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]     Checking hex v0.4.0
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling sqlite3-src v0.2.11
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking base64 v0.10.1
[INFO] [stderr]     Checking libloading v0.5.2
[INFO] [stderr]     Checking libflate v0.1.27
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking rmp v0.8.8
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking procinfo v0.4.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking sqlite3-sys v0.12.0
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking cookie v0.12.0
[INFO] [stderr]     Checking sqlite v0.25.0
[INFO] [stderr]     Checking error-chain v0.12.1
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking http v0.1.21
[INFO] [stderr]     Checking string v0.2.1
[INFO] [stderr]     Checking tokio-buf v0.1.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]     Checking publicsuffix v1.5.4
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking procfs v0.7.5
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking http-body v0.1.0
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking serde v1.0.103
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]     Checking serde-value v0.5.3
[INFO] [stderr]     Checking serde_urlencoded v0.5.5
[INFO] [stderr]     Checking rmp-serde v0.14.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stderr]     Checking stderrlog v0.4.3
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]  Documenting sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> sandbox/src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / error_chain::error_chain! {
[INFO] [stdout] 52 | |     types {
[INFO] [stdout] 53 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 54 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |     }
[INFO] [stdout] 88 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> sandbox/src/lib.rs:51:1
[INFO] [stdout]    |
[INFO] [stdout] 51 | / error_chain::error_chain! {
[INFO] [stdout] 52 | |     types {
[INFO] [stdout] 53 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 54 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 87 | |     }
[INFO] [stdout] 88 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking judge v0.1.0 (/opt/rustwide/workdir/judge)
[INFO] [stderr]  Documenting judge v0.1.0 (/opt/rustwide/workdir/judge)
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking log4rs v0.9.0
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> judge/src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / error_chain::error_chain! {
[INFO] [stdout] 31 | |     types {
[INFO] [stdout] 32 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 33 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     }
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> judge/src/lib.rs:30:1
[INFO] [stdout]    |
[INFO] [stdout] 30 | / error_chain::error_chain! {
[INFO] [stdout] 31 | |     types {
[INFO] [stdout] 32 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 33 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     }
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> judge/src/languages/loader.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / error_chain::error_chain! {
[INFO] [stdout] 26 | |     types {
[INFO] [stdout] 27 | |         Error, ErrorKind, ResultExt, Result;
[INFO] [stdout] 28 | |     }
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |     }
[INFO] [stdout] 40 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `impl_error_chain_processed` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stdout] warning: unused variable: `context`
[INFO] [stdout]    --> judge/src/engine/mod.rs:654:56
[INFO] [stdout]     |
[INFO] [stdout] 654 |     fn judge_interactive<'s, 'a, 'b, 'c>(&'s mut self, context: &'c mut TestCaseContext<'a, 'b>)
[INFO] [stdout]     |                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_context`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting builtin_languages v0.1.0 (/opt/rustwide/workdir/builtin-languages)
[INFO] [stderr]     Checking hyper v0.12.35
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.22
[INFO] [stderr]  Documenting wave_judge v0.1.0 (/opt/rustwide/workdir/driver)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.29s
[INFO] running `Command { std: "docker" "inspect" "5d67074a48a397367cb8ad415261a38a7c1509b22b2e1128c17d099b55968536", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d67074a48a397367cb8ad415261a38a7c1509b22b2e1128c17d099b55968536", kill_on_drop: false }`
[INFO] [stdout] 5d67074a48a397367cb8ad415261a38a7c1509b22b2e1128c17d099b55968536