[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 [INFO] [stdout] --> src/lib.rs:44:54 [INFO] [stdout] | [INFO] [stdout] 44 | fn from_str(s: &str) -> Result { [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 [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 [INFO] [stdout] --> src/lib.rs:156:57 [INFO] [stdout] | [INFO] [stdout] 156 | fn from_str(s: &str) -> Result { [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 [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 [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 [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 [INFO] [stdout] --> src/lib.rs:44:54 [INFO] [stdout] | [INFO] [stdout] 44 | fn from_str(s: &str) -> Result { [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 [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 [INFO] [stdout] --> src/lib.rs:156:57 [INFO] [stdout] | [INFO] [stdout] 156 | fn from_str(s: &str) -> Result { [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 [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 [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 [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