[INFO] fetching crate sysutil 0.7.2...
[INFO] testing sysutil-0.7.2 against 1.94.0 for beta-1.95-1
[INFO] extracting crate sysutil 0.7.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate sysutil 0.7.2
[INFO] finished tweaking crates.io crate sysutil 0.7.2
[INFO] tweaked toml for crates.io crate sysutil 0.7.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sysutil 0.7.2 on toolchain 1.94.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.94.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sysutil 0.7.2 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" "+1.94.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rsjson v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbd7778798ca9e350c93689591b3ae0361be15e0ebe955c85dab4e804756770e
[INFO] running `Command { std: "docker" "start" "-a" "dbd7778798ca9e350c93689591b3ae0361be15e0ebe955c85dab4e804756770e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbd7778798ca9e350c93689591b3ae0361be15e0ebe955c85dab4e804756770e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbd7778798ca9e350c93689591b3ae0361be15e0ebe955c85dab4e804756770e", kill_on_drop: false }`
[INFO] [stdout] dbd7778798ca9e350c93689591b3ae0361be15e0ebe955c85dab4e804756770e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f3235894a606a401defaceae6dc3ce4b5c38688651471a59025c0e4c51b9ab9
[INFO] running `Command { std: "docker" "start" "-a" "9f3235894a606a401defaceae6dc3ce4b5c38688651471a59025c0e4c51b9ab9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling rsjson v0.5.1
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling sysutil v0.7.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `savedSize`
[INFO] [stdout]    --> src/cpu.rs:576:26
[INFO] [stdout]     |
[INFO] [stdout] 576 |                     let (savedSize, savedShared) = savedLevel;
[INFO] [stdout]     |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_savedSize`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network.rs:419:21
[INFO] [stdout]     |
[INFO] [stdout] 419 |                 let mut interfaceEntry = iface.unwrap();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/cpu.rs:599:22
[INFO] [stdout]     |
[INFO] [stdout] 599 |         for chunk in chunks {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 599 -         for chunk in chunks {
[INFO] [stdout] 599 +         while let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 599 -         for chunk in chunks {
[INFO] [stdout] 599 +         if let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.44s
[INFO] running `Command { std: "docker" "inspect" "9f3235894a606a401defaceae6dc3ce4b5c38688651471a59025c0e4c51b9ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f3235894a606a401defaceae6dc3ce4b5c38688651471a59025c0e4c51b9ab9", kill_on_drop: false }`
[INFO] [stdout] 9f3235894a606a401defaceae6dc3ce4b5c38688651471a59025c0e4c51b9ab9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87a571dd8542f82f42587aac8f0a4a3bd56174c6d08f4fb7e55097f167f92bdc
[INFO] running `Command { std: "docker" "start" "-a" "87a571dd8542f82f42587aac8f0a4a3bd56174c6d08f4fb7e55097f167f92bdc", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `savedSize`
[INFO] [stdout]    --> src/cpu.rs:576:26
[INFO] [stdout]     |
[INFO] [stdout] 576 |                     let (savedSize, savedShared) = savedLevel;
[INFO] [stdout]     |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_savedSize`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network.rs:419:21
[INFO] [stdout]     |
[INFO] [stdout] 419 |                 let mut interfaceEntry = iface.unwrap();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/cpu.rs:599:22
[INFO] [stdout]     |
[INFO] [stdout] 599 |         for chunk in chunks {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 599 -         for chunk in chunks {
[INFO] [stdout] 599 +         while let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 599 -         for chunk in chunks {
[INFO] [stdout] 599 +         if let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sysutil v0.7.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `savedSize`
[INFO] [stdout]    --> src/cpu.rs:576:26
[INFO] [stdout]     |
[INFO] [stdout] 576 |                     let (savedSize, savedShared) = savedLevel;
[INFO] [stdout]     |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_savedSize`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/network.rs:419:21
[INFO] [stdout]     |
[INFO] [stdout] 419 |                 let mut interfaceEntry = iface.unwrap();
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stdout]    --> src/cpu.rs:599:22
[INFO] [stdout]     |
[INFO] [stdout] 599 |         for chunk in chunks {
[INFO] [stdout]     |                      ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stdout] help: to check pattern in a loop use `while let`
[INFO] [stdout]     |
[INFO] [stdout] 599 -         for chunk in chunks {
[INFO] [stdout] 599 +         while let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]     |
[INFO] [stdout] 599 -         for chunk in chunks {
[INFO] [stdout] 599 +         if let Some(chunk) = chunks {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "87a571dd8542f82f42587aac8f0a4a3bd56174c6d08f4fb7e55097f167f92bdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87a571dd8542f82f42587aac8f0a4a3bd56174c6d08f4fb7e55097f167f92bdc", kill_on_drop: false }`
[INFO] [stdout] 87a571dd8542f82f42587aac8f0a4a3bd56174c6d08f4fb7e55097f167f92bdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.94.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 111225301e3f6a8adb96a4e56674cf42ea5d90fd1ddd7718189d996adbcba28d
[INFO] running `Command { std: "docker" "start" "-a" "111225301e3f6a8adb96a4e56674cf42ea5d90fd1ddd7718189d996adbcba28d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `savedSize`
[INFO] [stderr]    --> src/cpu.rs:576:26
[INFO] [stderr]     |
[INFO] [stderr] 576 |                     let (savedSize, savedShared) = savedLevel;
[INFO] [stderr]     |                          ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_savedSize`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/network.rs:419:21
[INFO] [stderr]     |
[INFO] [stderr] 419 |                 let mut interfaceEntry = iface.unwrap();
[INFO] [stderr]     |                     ----^^^^^^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: for loop over an `Option`. This is more readably written as an `if let` statement
[INFO] [stderr]    --> src/cpu.rs:599:22
[INFO] [stderr]     |
[INFO] [stderr] 599 |         for chunk in chunks {
[INFO] [stderr]     |                      ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(for_loops_over_fallibles)]` on by default
[INFO] [stderr] help: to check pattern in a loop use `while let`
[INFO] [stderr]     |
[INFO] [stderr] 599 -         for chunk in chunks {
[INFO] [stderr] 599 +         while let Some(chunk) = chunks {
[INFO] [stderr]     |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]     |
[INFO] [stderr] 599 -         for chunk in chunks {
[INFO] [stderr] 599 +         if let Some(chunk) = chunks {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `sysutil` (lib) generated 3 warnings (run `cargo fix --lib -p sysutil` to apply 2 suggestions)
[INFO] [stderr] warning: `sysutil` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sysutil-6f8b328f46c47ff0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test ... ok
[INFO] [stderr]    Doc-tests sysutil
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/storage.rs - storage::ByteSize (line 18) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 15) ... ok
[INFO] [stdout] test src/cpu.rs - cpu::Frequency (line 102) ... ok
[INFO] [stdout] test src/cpu.rs - cpu::CPU (line 60) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/storage.rs - storage::ByteSize (line 18) stdout ----
[INFO] [stdout] error: expected item, found keyword `let`
[INFO] [stdout]   --> src/storage.rs:19:1
[INFO] [stdout]    |
[INFO] [stdout] 19 | let byteSize = /* some sysutil function returning ByteSize */;
[INFO] [stdout]    | ^^^
[INFO] [stdout]    | |
[INFO] [stdout]    | `let` cannot be used for global variables
[INFO] [stdout]    | help: consider using `static` or `const` instead of `let`
[INFO] [stdout]    |
[INFO] [stdout]    = note: for a full list of items that can appear in modules, see <https://doc.rust-lang.org/reference/items.html>
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/storage.rs - storage::ByteSize (line 18)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 3 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.92s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "111225301e3f6a8adb96a4e56674cf42ea5d90fd1ddd7718189d996adbcba28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "111225301e3f6a8adb96a4e56674cf42ea5d90fd1ddd7718189d996adbcba28d", kill_on_drop: false }`
[INFO] [stdout] 111225301e3f6a8adb96a4e56674cf42ea5d90fd1ddd7718189d996adbcba28d
