[INFO] fetching crate linux-stats 0.3.2...
[INFO] checking linux-stats-0.3.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate linux-stats 0.3.2 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate linux-stats 0.3.2
[INFO] finished tweaking crates.io crate linux-stats 0.3.2
[INFO] tweaked toml for crates.io crate linux-stats 0.3.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate linux-stats 0.3.2 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 247fbc73c5521fb66ac16038940d1f5e1e17ab1d4f0cdb212fe4b76f715a076e
[INFO] running `Command { std: "docker" "start" "-a" "247fbc73c5521fb66ac16038940d1f5e1e17ab1d4f0cdb212fe4b76f715a076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "247fbc73c5521fb66ac16038940d1f5e1e17ab1d4f0cdb212fe4b76f715a076e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "247fbc73c5521fb66ac16038940d1f5e1e17ab1d4f0cdb212fe4b76f715a076e", kill_on_drop: false }`
[INFO] [stdout] 247fbc73c5521fb66ac16038940d1f5e1e17ab1d4f0cdb212fe4b76f715a076e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] bb4ff41c999014a22da180ec941fcd0bf434f2ab50287026987684d2af03f6dd
[INFO] running `Command { std: "docker" "start" "-a" "bb4ff41c999014a22da180ec941fcd0bf434f2ab50287026987684d2af03f6dd", kill_on_drop: false }`
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking enum_primitive v0.1.1
[INFO] [stderr]     Checking linux-stats v0.3.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `linux-stats` (lib test) due to 6 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<Stat, Infallible>
[INFO] [stdout]    --> src/lib.rs:44:54
[INFO] [stdout]     |
[INFO] [stdout]  44 |       fn from_str(s: &str) -> Result<Stat, Infallible> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout]  45 | |         let mut stat: Stat = Default::default();
[INFO] [stdout]  46 | |         for (line_num, line) in s.lines().enumerate() {
[INFO] [stdout]  47 | |             if line_num == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout]  99 | |         Ok(stat)
[INFO] [stdout] 100 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<Stat, Infallible>
[INFO] [stdout]   --> src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         Ok(stat)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<MemInfo, Infallible>
[INFO] [stdout]    --> src/lib.rs:156:57
[INFO] [stdout]     |
[INFO] [stdout] 156 |       fn from_str(s: &str) -> Result<MemInfo, Infallible> {
[INFO] [stdout]     |  _________________________________________________________^
[INFO] [stdout] 157 | |         let mut meminfo: MemInfo = Default::default();
[INFO] [stdout] 158 | |
[INFO] [stdout] 159 | |         for line in s.lines() {
[INFO] [stdout] ...   |
[INFO] [stdout] 341 | |         Ok(meminfo)
[INFO] [stdout] 342 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<MemInfo, Infallible>
[INFO] [stdout]    --> src/lib.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |         Ok(meminfo)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Stat, Infallible>
[INFO] [stdout]    --> src/lib.rs:388:5
[INFO] [stdout]     |
[INFO] [stdout] 388 | /     read_file("/proc/stat")?
[INFO] [stdout] 389 | |         .parse()
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<MemInfo, Infallible>
[INFO] [stdout]    --> src/lib.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 | /     read_file("/proc/meminfo")?
[INFO] [stdout] 395 | |         .parse()
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Stat, Infallible>
[INFO] [stdout]    --> src/lib.rs:44:54
[INFO] [stdout]     |
[INFO] [stdout]  44 |       fn from_str(s: &str) -> Result<Stat, Infallible> {
[INFO] [stdout]     |  ______________________________________________________^
[INFO] [stdout]  45 | |         let mut stat: Stat = Default::default();
[INFO] [stdout]  46 | |         for (line_num, line) in s.lines().enumerate() {
[INFO] [stdout]  47 | |             if line_num == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout]  99 | |         Ok(stat)
[INFO] [stdout] 100 | |     }
[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<Stat, Infallible>
[INFO] [stdout]   --> src/lib.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         Ok(stat)
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `linux-stats` (lib) due to 6 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<MemInfo, Infallible>
[INFO] [stdout]    --> src/lib.rs:156:57
[INFO] [stdout]     |
[INFO] [stdout] 156 |       fn from_str(s: &str) -> Result<MemInfo, Infallible> {
[INFO] [stdout]     |  _________________________________________________________^
[INFO] [stdout] 157 | |         let mut meminfo: MemInfo = Default::default();
[INFO] [stdout] 158 | |
[INFO] [stdout] 159 | |         for line in s.lines() {
[INFO] [stdout] ...   |
[INFO] [stdout] 341 | |         Ok(meminfo)
[INFO] [stdout] 342 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<MemInfo, Infallible>
[INFO] [stdout]    --> src/lib.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |         Ok(meminfo)
[INFO] [stdout]     |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Stat, Infallible>
[INFO] [stdout]    --> src/lib.rs:388:5
[INFO] [stdout]     |
[INFO] [stdout] 388 | /     read_file("/proc/stat")?
[INFO] [stdout] 389 | |         .parse()
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<MemInfo, Infallible>
[INFO] [stdout]    --> src/lib.rs:394:5
[INFO] [stdout]     |
[INFO] [stdout] 394 | /     read_file("/proc/meminfo")?
[INFO] [stdout] 395 | |         .parse()
[INFO] [stdout]     | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb4ff41c999014a22da180ec941fcd0bf434f2ab50287026987684d2af03f6dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4ff41c999014a22da180ec941fcd0bf434f2ab50287026987684d2af03f6dd", kill_on_drop: false }`
[INFO] [stdout] bb4ff41c999014a22da180ec941fcd0bf434f2ab50287026987684d2af03f6dd
