[INFO] cloning repository https://github.com/Stephen-Seo/rust_network_status_rate
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Stephen-Seo/rust_network_status_rate" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephen-Seo%2Frust_network_status_rate", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephen-Seo%2Frust_network_status_rate'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8ff561f9c1e2660909dc2c40dad7fcbcb74775cd
[INFO] checking Stephen-Seo/rust_network_status_rate against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStephen-Seo%2Frust_network_status_rate" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Stephen-Seo/rust_network_status_rate
[INFO] finished tweaking git repo https://github.com/Stephen-Seo/rust_network_status_rate
[INFO] tweaked toml for git repo https://github.com/Stephen-Seo/rust_network_status_rate written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Stephen-Seo/rust_network_status_rate on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Stephen-Seo/rust_network_status_rate already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f82268003761e834a909317821f2cf150a461666f3530de148dcaa2a8651362
[INFO] running `Command { std: "docker" "start" "-a" "9f82268003761e834a909317821f2cf150a461666f3530de148dcaa2a8651362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f82268003761e834a909317821f2cf150a461666f3530de148dcaa2a8651362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f82268003761e834a909317821f2cf150a461666f3530de148dcaa2a8651362", kill_on_drop: false }`
[INFO] [stdout] 9f82268003761e834a909317821f2cf150a461666f3530de148dcaa2a8651362
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f273bd131dd9587ac5631a0c1ce5b7e81f4fe2e6e1c21d96062157ccf13894ca
[INFO] running `Command { std: "docker" "start" "-a" "f273bd131dd9587ac5631a0c1ce5b7e81f4fe2e6e1c21d96062157ccf13894ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking rust_network_status_rate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     net_dev: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     #[structopt(
[INFO] [stdout] 35 | |         short = "p",
[INFO] [stdout] 36 | |         long = "prefix",
[INFO] [stdout] 37 | |         help = "Prefix to use instead of XDG_RUNTIME_DIR if enabled",
[INFO] [stdout] 38 | |         default_value = ALTERNATE_PREFIX_DIR
[INFO] [stdout] 39 | |     )]
[INFO] [stdout] 40 | |     alternate_prefix_dir: String,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[structopt(
[INFO] [stdout] 42 | |         short = "u",
[INFO] [stdout] 43 | |         long = "send-total",
[INFO] [stdout] 44 | |         help = "Filename of total bytes sent (in prefix dir)",
[INFO] [stdout] 45 | |         default_value = DEFAULT_SEND_TOTAL_FILENAME
[INFO] [stdout] 46 | |     )]
[INFO] [stdout] 47 | |     send_total_filename: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | /     #[structopt(
[INFO] [stdout] 49 | |         short = "d",
[INFO] [stdout] 50 | |         long = "recv-total",
[INFO] [stdout] 51 | |         help = "Filename of total bytes received (in prefix dir)",
[INFO] [stdout] 52 | |         default_value = DEFAULT_RECV_TOTAL_FILENAME
[INFO] [stdout] 53 | |     )]
[INFO] [stdout] 54 | |     recv_total_filename: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     #[structopt(
[INFO] [stdout] 56 | |         short = "s",
[INFO] [stdout] 57 | |         long = "send-interval",
[INFO] [stdout] 58 | |         help = "Filename of interval bytes sent (in prefix dir)",
[INFO] [stdout] 59 | |         default_value = DEFAULT_SEND_INTERVAL_FILENAME
[INFO] [stdout] 60 | |     )]
[INFO] [stdout] 61 | |     send_interval_filename: String,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     #[structopt(
[INFO] [stdout] 63 | |         short = "r",
[INFO] [stdout] 64 | |         long = "recv-interval",
[INFO] [stdout] 65 | |         help = "Filename of interval bytes recieved (in prefix dir)",
[INFO] [stdout] 66 | |         default_value = DEFAULT_RECV_INTERVAL_FILENAME
[INFO] [stdout] 67 | |     )]
[INFO] [stdout] 68 | |     recv_interval_filename: String,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | /     #[structopt(
[INFO] [stdout] 71 | |         short = "i",
[INFO] [stdout] 72 | |         long = "pid-filename",
[INFO] [stdout] 73 | |         help = "Filename to write pid to",
[INFO] [stdout] 74 | |         default_value = DEFAULT_PID_FILENAME
[INFO] [stdout] 75 | |     )]
[INFO] [stdout] 76 | |     pid_filename: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_network_status_rate` (bin "rust_network_status_rate") due to 7 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     net_dev: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | /     #[structopt(
[INFO] [stdout] 35 | |         short = "p",
[INFO] [stdout] 36 | |         long = "prefix",
[INFO] [stdout] 37 | |         help = "Prefix to use instead of XDG_RUNTIME_DIR if enabled",
[INFO] [stdout] 38 | |         default_value = ALTERNATE_PREFIX_DIR
[INFO] [stdout] 39 | |     )]
[INFO] [stdout] 40 | |     alternate_prefix_dir: String,
[INFO] [stdout]    | |________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | /     #[structopt(
[INFO] [stdout] 42 | |         short = "u",
[INFO] [stdout] 43 | |         long = "send-total",
[INFO] [stdout] 44 | |         help = "Filename of total bytes sent (in prefix dir)",
[INFO] [stdout] 45 | |         default_value = DEFAULT_SEND_TOTAL_FILENAME
[INFO] [stdout] 46 | |     )]
[INFO] [stdout] 47 | |     send_total_filename: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 | /     #[structopt(
[INFO] [stdout] 49 | |         short = "d",
[INFO] [stdout] 50 | |         long = "recv-total",
[INFO] [stdout] 51 | |         help = "Filename of total bytes received (in prefix dir)",
[INFO] [stdout] 52 | |         default_value = DEFAULT_RECV_TOTAL_FILENAME
[INFO] [stdout] 53 | |     )]
[INFO] [stdout] 54 | |     recv_total_filename: String,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 | /     #[structopt(
[INFO] [stdout] 56 | |         short = "s",
[INFO] [stdout] 57 | |         long = "send-interval",
[INFO] [stdout] 58 | |         help = "Filename of interval bytes sent (in prefix dir)",
[INFO] [stdout] 59 | |         default_value = DEFAULT_SEND_INTERVAL_FILENAME
[INFO] [stdout] 60 | |     )]
[INFO] [stdout] 61 | |     send_interval_filename: String,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 62 | /     #[structopt(
[INFO] [stdout] 63 | |         short = "r",
[INFO] [stdout] 64 | |         long = "recv-interval",
[INFO] [stdout] 65 | |         help = "Filename of interval bytes recieved (in prefix dir)",
[INFO] [stdout] 66 | |         default_value = DEFAULT_RECV_INTERVAL_FILENAME
[INFO] [stdout] 67 | |     )]
[INFO] [stdout] 68 | |     recv_interval_filename: String,
[INFO] [stdout]    | |__________________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | /     #[structopt(
[INFO] [stdout] 71 | |         short = "i",
[INFO] [stdout] 72 | |         long = "pid-filename",
[INFO] [stdout] 73 | |         help = "Filename to write pid to",
[INFO] [stdout] 74 | |         default_value = DEFAULT_PID_FILENAME
[INFO] [stdout] 75 | |     )]
[INFO] [stdout] 76 | |     pid_filename: String,
[INFO] [stdout]    | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_network_status_rate` (bin "rust_network_status_rate" test) due to 7 previous errors
[INFO] running `Command { std: "docker" "inspect" "f273bd131dd9587ac5631a0c1ce5b7e81f4fe2e6e1c21d96062157ccf13894ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f273bd131dd9587ac5631a0c1ce5b7e81f4fe2e6e1c21d96062157ccf13894ca", kill_on_drop: false }`
[INFO] [stdout] f273bd131dd9587ac5631a0c1ce5b7e81f4fe2e6e1c21d96062157ccf13894ca
