[INFO] cloning repository https://github.com/jcaesar/cgroup-memory-prometheus-ex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jcaesar/cgroup-memory-prometheus-ex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcaesar%2Fcgroup-memory-prometheus-ex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcaesar%2Fcgroup-memory-prometheus-ex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ab71cb85244a812c25b0509ab6bea0bb9395389
[INFO] testing jcaesar/cgroup-memory-prometheus-ex against try#c066bf6804adc55193b71afdff6a56922f4a8689+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjcaesar%2Fcgroup-memory-prometheus-ex" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jcaesar/cgroup-memory-prometheus-ex
[INFO] finished tweaking git repo https://github.com/jcaesar/cgroup-memory-prometheus-ex
[INFO] tweaked toml for git repo https://github.com/jcaesar/cgroup-memory-prometheus-ex written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jcaesar/cgroup-memory-prometheus-ex on toolchain c066bf6804adc55193b71afdff6a56922f4a8689
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jcaesar/cgroup-memory-prometheus-ex 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" "+c066bf6804adc55193b71afdff6a56922f4a8689" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b6351a09edcd9a3b9d0b9a85709374c3929c7422541ff442a1853d77bb2c7e16
[INFO] running `Command { std: "docker" "start" "-a" "b6351a09edcd9a3b9d0b9a85709374c3929c7422541ff442a1853d77bb2c7e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b6351a09edcd9a3b9d0b9a85709374c3929c7422541ff442a1853d77bb2c7e16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6351a09edcd9a3b9d0b9a85709374c3929c7422541ff442a1853d77bb2c7e16", kill_on_drop: false }`
[INFO] [stdout] b6351a09edcd9a3b9d0b9a85709374c3929c7422541ff442a1853d77bb2c7e16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 069aa52eeb868db385a78d8a5b8028b0f9e631627c8f57dc5dc473de209642b6
[INFO] running `Command { std: "docker" "start" "-a" "069aa52eeb868db385a78d8a5b8028b0f9e631627c8f57dc5dc473de209642b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling lock_api v0.3.3
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling itoa v0.4.5
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling protobuf v2.10.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling smallvec v0.6.13
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling httparse v1.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling try-lock v0.2.2
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling prometheus v0.7.0
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling hyper v0.12.35
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling cgroups v0.1.0
[INFO] [stderr]    Compiling pathdiff v0.1.0
[INFO] [stderr]    Compiling tokio-executor v0.1.9
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling tokio-sync v0.1.7
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-current-thread v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.12
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling futures-cpupool v0.1.8
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling want v0.2.0
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling tokio-threadpool v0.1.17
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling tokio-io v0.1.12
[INFO] [stderr]    Compiling http v0.1.21
[INFO] [stderr]    Compiling string v0.2.1
[INFO] [stderr]    Compiling tokio-buf v0.1.1
[INFO] [stderr]    Compiling tokio-reactor v0.1.11
[INFO] [stderr]    Compiling backtrace v0.3.42
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-tcp v0.1.3
[INFO] [stderr]    Compiling http-body v0.1.0
[INFO] [stderr]    Compiling h2 v0.1.26
[INFO] [stderr]    Compiling syn-mid v0.4.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling prometheus_exporter v0.4.1
[INFO] [stderr]    Compiling proc-macro-error v0.4.5
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.5
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling structopt-derive v0.4.1
[INFO] [stderr]    Compiling structopt v0.3.8
[INFO] [stderr]    Compiling cgroups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> main.rs:58:57
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for entry in fs::read_dir(mem.path())? { for entry in entry {
[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] 58 -         for entry in fs::read_dir(mem.path())? { for entry in entry {
[INFO] [stdout] 58 +         for entry in fs::read_dir(mem.path())? { while let Ok(entry) = entry {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 58 -         for entry in fs::read_dir(mem.path())? { for entry in entry {
[INFO] [stdout] 58 +         for entry in fs::read_dir(mem.path())? { if let Ok(entry) = entry {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.75s
[INFO] running `Command { std: "docker" "inspect" "069aa52eeb868db385a78d8a5b8028b0f9e631627c8f57dc5dc473de209642b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "069aa52eeb868db385a78d8a5b8028b0f9e631627c8f57dc5dc473de209642b6", kill_on_drop: false }`
[INFO] [stdout] 069aa52eeb868db385a78d8a5b8028b0f9e631627c8f57dc5dc473de209642b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 416a604951665729910084830aba24bc297aec4ce32e7c6358f4b7471eb4c682
[INFO] running `Command { std: "docker" "start" "-a" "416a604951665729910084830aba24bc297aec4ce32e7c6358f4b7471eb4c682", kill_on_drop: false }`
[INFO] [stderr]    Compiling cgroups v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stdout]   --> main.rs:58:57
[INFO] [stdout]    |
[INFO] [stdout] 58 |         for entry in fs::read_dir(mem.path())? { for entry in entry {
[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] 58 -         for entry in fs::read_dir(mem.path())? { for entry in entry {
[INFO] [stdout] 58 +         for entry in fs::read_dir(mem.path())? { while let Ok(entry) = entry {
[INFO] [stdout]    |
[INFO] [stdout] help: consider using `if let` to clear intent
[INFO] [stdout]    |
[INFO] [stdout] 58 -         for entry in fs::read_dir(mem.path())? { for entry in entry {
[INFO] [stdout] 58 +         for entry in fs::read_dir(mem.path())? { if let Ok(entry) = entry {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "416a604951665729910084830aba24bc297aec4ce32e7c6358f4b7471eb4c682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416a604951665729910084830aba24bc297aec4ce32e7c6358f4b7471eb4c682", kill_on_drop: false }`
[INFO] [stdout] 416a604951665729910084830aba24bc297aec4ce32e7c6358f4b7471eb4c682
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 557a133ab342d56906b0769a7487f0e392a8a95e4b9f2ece84bea0a8c110656e
[INFO] running `Command { std: "docker" "start" "-a" "557a133ab342d56906b0769a7487f0e392a8a95e4b9f2ece84bea0a8c110656e", kill_on_drop: false }`
[INFO] [stderr] warning: for loop over a `Result`. This is more readably written as an `if let` statement
[INFO] [stderr]   --> main.rs:58:57
[INFO] [stderr]    |
[INFO] [stderr] 58 |         for entry in fs::read_dir(mem.path())? { for entry in entry {
[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] 58 -         for entry in fs::read_dir(mem.path())? { for entry in entry {
[INFO] [stderr] 58 +         for entry in fs::read_dir(mem.path())? { while let Ok(entry) = entry {
[INFO] [stderr]    |
[INFO] [stderr] help: consider using `if let` to clear intent
[INFO] [stderr]    |
[INFO] [stderr] 58 -         for entry in fs::read_dir(mem.path())? { for entry in entry {
[INFO] [stderr] 58 +         for entry in fs::read_dir(mem.path())? { if let Ok(entry) = entry {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `cgroups` (bin "cgroup-mem-exporter" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/cgroup_mem_exporter-b94081fa48df281a)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "557a133ab342d56906b0769a7487f0e392a8a95e4b9f2ece84bea0a8c110656e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557a133ab342d56906b0769a7487f0e392a8a95e4b9f2ece84bea0a8c110656e", kill_on_drop: false }`
[INFO] [stdout] 557a133ab342d56906b0769a7487f0e392a8a95e4b9f2ece84bea0a8c110656e