[INFO] cloning repository https://github.com/Somososan/Keithley4200_Data_Library_tool
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Somososan/Keithley4200_Data_Library_tool" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomososan%2FKeithley4200_Data_Library_tool", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomososan%2FKeithley4200_Data_Library_tool'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1510a50c436d81bba9a5745f329613e4c0b4f28c
[INFO] documenting Somososan/Keithley4200_Data_Library_tool against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSomososan%2FKeithley4200_Data_Library_tool" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Somososan/Keithley4200_Data_Library_tool on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Somososan/Keithley4200_Data_Library_tool
[INFO] finished tweaking git repo https://github.com/Somososan/Keithley4200_Data_Library_tool
[INFO] tweaked toml for git repo https://github.com/Somososan/Keithley4200_Data_Library_tool written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Somososan/Keithley4200_Data_Library_tool already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 226373e668406b00444ffe969c45337f65a14c888458735a2c538915b4caa3e8
[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" "226373e668406b00444ffe969c45337f65a14c888458735a2c538915b4caa3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "226373e668406b00444ffe969c45337f65a14c888458735a2c538915b4caa3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "226373e668406b00444ffe969c45337f65a14c888458735a2c538915b4caa3e8", kill_on_drop: false }`
[INFO] [stdout] 226373e668406b00444ffe969c45337f65a14c888458735a2c538915b4caa3e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19b76fa5e756e8627e07ea6304cdcaa4fdf8f33e7142044928bf4292fe9082a2
[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" "19b76fa5e756e8627e07ea6304cdcaa4fdf8f33e7142044928bf4292fe9082a2", kill_on_drop: false }`
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]    Compiling webview-sys v0.4.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking quick-xml v0.17.0
[INFO] [stderr]     Checking codepage v0.1.1
[INFO] [stderr]    Compiling strum_macros v0.17.1
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking web-view v0.6.0
[INFO] [stderr]     Checking serde_json v1.0.42
[INFO] [stderr]     Checking calamine v0.16.1
[INFO] [stderr]  Documenting data_library v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/measurement/mod.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 | /                 (if "Test Name" == cell.2.get_string().unwrap_or("") {
[INFO] [stdout] 73 | |                     Some((cell.0 - 3, cell.1))
[INFO] [stdout] 74 | |                 } else {
[INFO] [stdout] 75 | |                     None
[INFO] [stdout] 76 | |                 })
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 if "Test Name" == cell.2.get_string().unwrap_or("") {
[INFO] [stdout] 73 |                     Some((cell.0 - 3, cell.1))
[INFO] [stdout] 74 |                 } else {
[INFO] [stdout] 75 |                     None
[INFO] [stdout] 76 |                 }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.96s
[INFO] running `Command { std: "docker" "inspect" "19b76fa5e756e8627e07ea6304cdcaa4fdf8f33e7142044928bf4292fe9082a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19b76fa5e756e8627e07ea6304cdcaa4fdf8f33e7142044928bf4292fe9082a2", kill_on_drop: false }`
[INFO] [stdout] 19b76fa5e756e8627e07ea6304cdcaa4fdf8f33e7142044928bf4292fe9082a2