[INFO] cloning repository https://github.com/icendoan/qsm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/icendoan/qsm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficendoan%2Fqsm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficendoan%2Fqsm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 258e2d102debcd9c0cead08dad2646c09d88facc
[INFO] documenting icendoan/qsm against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ficendoan%2Fqsm" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/icendoan/qsm on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/icendoan/qsm
[INFO] finished tweaking git repo https://github.com/icendoan/qsm
[INFO] tweaked toml for git repo https://github.com/icendoan/qsm written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/icendoan/qsm already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18f3305b80eae8edf6ac4078966f4626b9472d502717251bbf11482c04ff29bb
[INFO] running `Command { std: "docker" "start" "-a" "18f3305b80eae8edf6ac4078966f4626b9472d502717251bbf11482c04ff29bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18f3305b80eae8edf6ac4078966f4626b9472d502717251bbf11482c04ff29bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f3305b80eae8edf6ac4078966f4626b9472d502717251bbf11482c04ff29bb", kill_on_drop: false }`
[INFO] [stdout] 18f3305b80eae8edf6ac4078966f4626b9472d502717251bbf11482c04ff29bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 461cba5e008c2d47973811abbdfafec00f82388332e1411ab897d65be242c878
[INFO] running `Command { std: "docker" "start" "-a" "461cba5e008c2d47973811abbdfafec00f82388332e1411ab897d65be242c878", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling qsm v2.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]  Documenting qsm v2.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(nll,untagged_unions)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/main.rs:198:148
[INFO] [stdout]     |
[INFO] [stdout] 198 | ...r(|e| Err::Err(format!("num parse err: {:?}", e)))?;;
[INFO] [stdout]     |                                                        ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: Compilation failed, aborting rustdoc
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not document `qsm`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --crate-type bin --crate-name qsm src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --document-private-items '-Arustdoc::private-intra-doc-links' -C metadata=8f3f9597f62b2596 -L dependency=/opt/rustwide/target/debug/deps --extern chrono=/opt/rustwide/target/debug/deps/libchrono-c559abe31659a254.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-eea3849bf67c62f1.rmeta --cap-lints=warn --crate-version 2.2.5` (exit status: 1)
[INFO] running `Command { std: "docker" "inspect" "461cba5e008c2d47973811abbdfafec00f82388332e1411ab897d65be242c878", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "461cba5e008c2d47973811abbdfafec00f82388332e1411ab897d65be242c878", kill_on_drop: false }`
[INFO] [stdout] 461cba5e008c2d47973811abbdfafec00f82388332e1411ab897d65be242c878