[INFO] cloning repository https://github.com/yvt/pvfilt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yvt/pvfilt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2Fpvfilt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2Fpvfilt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9eada1db649c7784d7001bbe48e7e4119c862cb0
[INFO] checking yvt/pvfilt against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvt%2Fpvfilt" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yvt/pvfilt on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yvt/pvfilt
[INFO] finished tweaking git repo https://github.com/yvt/pvfilt
[INFO] tweaked toml for git repo https://github.com/yvt/pvfilt written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/yvt/pvfilt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded structopt v0.3.4
[INFO] [stderr]   Downloaded tui v0.6.2
[INFO] [stderr]   Downloaded structopt-derive v0.3.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 04d541a7efef4af017e8d3d52ef80bbc6c40c25b3048631e94e821707e5ea46e
[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" "04d541a7efef4af017e8d3d52ef80bbc6c40c25b3048631e94e821707e5ea46e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04d541a7efef4af017e8d3d52ef80bbc6c40c25b3048631e94e821707e5ea46e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04d541a7efef4af017e8d3d52ef80bbc6c40c25b3048631e94e821707e5ea46e", kill_on_drop: false }`
[INFO] [stdout] 04d541a7efef4af017e8d3d52ef80bbc6c40c25b3048631e94e821707e5ea46e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5114287fd548cfe2978255a48061a0d8196e042e9811b00ff8d58a548938998
[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" "a5114287fd548cfe2978255a48061a0d8196e042e9811b00ff8d58a548938998", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.1
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking signal-hook v0.1.11
[INFO] [stderr]     Checking tui v0.6.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]     Checking pvfilt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/draw.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 | /                     (if let Some(t) = s.instant.checked_duration_since(time_origin) {
[INFO] [stdout] 76 | |                         Some((t.as_secs_f64() - time_scale, s.value))
[INFO] [stdout] 77 | |                     } else {
[INFO] [stdout] 78 | |                         None
[INFO] [stdout] 79 | |                     })
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     if let Some(t) = s.instant.checked_duration_since(time_origin) {
[INFO] [stdout] 76 |                         Some((t.as_secs_f64() - time_scale, s.value))
[INFO] [stdout] 77 |                     } else {
[INFO] [stdout] 78 |                         None
[INFO] [stdout] 79 |                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/draw.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 | /                     (if let Some(t) = s.instant.checked_duration_since(time_origin) {
[INFO] [stdout] 76 | |                         Some((t.as_secs_f64() - time_scale, s.value))
[INFO] [stdout] 77 | |                     } else {
[INFO] [stdout] 78 | |                         None
[INFO] [stdout] 79 | |                     })
[INFO] [stdout]    | |______________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     if let Some(t) = s.instant.checked_duration_since(time_origin) {
[INFO] [stdout] 76 |                         Some((t.as_secs_f64() - time_scale, s.value))
[INFO] [stdout] 77 |                     } else {
[INFO] [stdout] 78 |                         None
[INFO] [stdout] 79 |                     }
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.65s
[INFO] running `Command { std: "docker" "inspect" "a5114287fd548cfe2978255a48061a0d8196e042e9811b00ff8d58a548938998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5114287fd548cfe2978255a48061a0d8196e042e9811b00ff8d58a548938998", kill_on_drop: false }`
[INFO] [stdout] a5114287fd548cfe2978255a48061a0d8196e042e9811b00ff8d58a548938998