[INFO] cloning repository https://github.com/maxi-k/perfevent-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxi-k/perfevent-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxi-k%2Fperfevent-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxi-k%2Fperfevent-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 208289bf1d8cb309e16ae391ff0650ee72c86fdb
[INFO] testing maxi-k/perfevent-rs against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxi-k%2Fperfevent-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/maxi-k/perfevent-rs
[INFO] finished tweaking git repo https://github.com/maxi-k/perfevent-rs
[INFO] tweaked toml for git repo https://github.com/maxi-k/perfevent-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maxi-k/perfevent-rs on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/maxi-k/perfevent-rs 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/maxi-k/rust-perfcnt-less-deps`
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f82622619469dee7524260123689f53bc0602e1539d5ec6bbde5c0a4e35c41ee
[INFO] running `Command { std: "docker" "start" "-a" "f82622619469dee7524260123689f53bc0602e1539d5ec6bbde5c0a4e35c41ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f82622619469dee7524260123689f53bc0602e1539d5ec6bbde5c0a4e35c41ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f82622619469dee7524260123689f53bc0602e1539d5ec6bbde5c0a4e35c41ee", kill_on_drop: false }`
[INFO] [stdout] f82622619469dee7524260123689f53bc0602e1539d5ec6bbde5c0a4e35c41ee
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 029cf2cee91787ca5026e073dd97753cd9d88080bb1987a7adf1ccdfb0fddf34
[INFO] running `Command { std: "docker" "start" "-a" "029cf2cee91787ca5026e073dd97753cd9d88080bb1987a7adf1ccdfb0fddf34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling perfcnt v0.7.3-mod (https://github.com/maxi-k/rust-perfcnt-less-deps?rev=990464c#990464cc)
[INFO] [stderr]    Compiling perf-event-block v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.97s
[INFO] running `Command { std: "docker" "inspect" "029cf2cee91787ca5026e073dd97753cd9d88080bb1987a7adf1ccdfb0fddf34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "029cf2cee91787ca5026e073dd97753cd9d88080bb1987a7adf1ccdfb0fddf34", kill_on_drop: false }`
[INFO] [stdout] 029cf2cee91787ca5026e073dd97753cd9d88080bb1987a7adf1ccdfb0fddf34
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c3482a97875174c06bd5a4a3a4d163f031289a1e1abd4ee02bff77fcc4395ea
[INFO] running `Command { std: "docker" "start" "-a" "5c3482a97875174c06bd5a4a3a4d163f031289a1e1abd4ee02bff77fcc4395ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling perf-event-block v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `res` is assigned to, but never used
[INFO] [stdout]    --> src/lib.rs:595:13
[INFO] [stdout]     |
[INFO] [stdout] 595 |         let mut res = 1;
[INFO] [stdout]     |             ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: consider using `_res` instead
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `res` is never read
[INFO] [stdout]    --> src/lib.rs:597:34
[INFO] [stdout]     |
[INFO] [stdout] 597 |             std::hint::black_box(res += i);
[INFO] [stdout]     |                                  ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "5c3482a97875174c06bd5a4a3a4d163f031289a1e1abd4ee02bff77fcc4395ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c3482a97875174c06bd5a4a3a4d163f031289a1e1abd4ee02bff77fcc4395ea", kill_on_drop: false }`
[INFO] [stdout] 5c3482a97875174c06bd5a4a3a4d163f031289a1e1abd4ee02bff77fcc4395ea
[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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4b152f9246696cd267af964460f6f06df6ab222a7041194608e73552b2bc8b83
[INFO] running `Command { std: "docker" "start" "-a" "4b152f9246696cd267af964460f6f06df6ab222a7041194608e73552b2bc8b83", kill_on_drop: false }`
[INFO] [stderr] warning: variable `res` is assigned to, but never used
[INFO] [stderr]    --> src/lib.rs:595:13
[INFO] [stderr]     |
[INFO] [stderr] 595 |         let mut res = 1;
[INFO] [stderr]     |             ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: consider using `_res` instead
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `res` is never read
[INFO] [stderr]    --> src/lib.rs:597:34
[INFO] [stderr]     |
[INFO] [stderr] 597 |             std::hint::black_box(res += i);
[INFO] [stderr]     |                                  ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `perf-event-block` (lib test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/perf_event_block-5d2c4eb96a04b6bf)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::sleep_only ... ok
[INFO] [stdout] test tests::long_computation_with_black_box ... ok
[INFO] [stdout] test tests::custom_events ... ok
[INFO] [stdout] test tests::manual_usage ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.97s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests perf_event_block
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 42) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 31) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 42) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `perfblock`
[INFO] [stdout]   --> src/lib.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | use perfblock::*;
[INFO] [stdout]    |     ^^^^^^^^^ use of unresolved module or unlinked crate `perfblock`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `perfblock`, use `cargo add perfblock` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `perfblock`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use perfblock::*;
[INFO] [stdout]   |     ^^^^^^^^^ use of unresolved module or unlinked crate `perfblock`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `perfblock`, use `cargo add perfblock` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 18) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `perfblock`
[INFO] [stdout]   --> src/lib.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use perfblock::*;
[INFO] [stdout]    |     ^^^^^^^^^ use of unresolved module or unlinked crate `perfblock`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `perfblock`, use `cargo add perfblock` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 31) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `perfblock`
[INFO] [stdout]   --> src/lib.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | use perfblock::*;
[INFO] [stdout]    |     ^^^^^^^^^ use of unresolved module or unlinked crate `perfblock`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `perfblock`, use `cargo add perfblock` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 18)
[INFO] [stdout]     src/lib.rs - (line 31)
[INFO] [stdout]     src/lib.rs - (line 42)
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "4b152f9246696cd267af964460f6f06df6ab222a7041194608e73552b2bc8b83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b152f9246696cd267af964460f6f06df6ab222a7041194608e73552b2bc8b83", kill_on_drop: false }`
[INFO] [stdout] 4b152f9246696cd267af964460f6f06df6ab222a7041194608e73552b2bc8b83
