[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] 7340710dda38ade892109932a23f119b29eff1cd
[INFO] testing maxi-k/perfevent-rs against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxi-k%2Fperfevent-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/maxi-k/perfevent-rs on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "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" "+1ef7943ee607160a564655b6596f83670ef95df5" "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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89271d0809966c41bed5b58190bb318c3ed4df6da13fe87d02dcf170d2a9e4d4
[INFO] running `Command { std: "docker" "start" "-a" "89271d0809966c41bed5b58190bb318c3ed4df6da13fe87d02dcf170d2a9e4d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89271d0809966c41bed5b58190bb318c3ed4df6da13fe87d02dcf170d2a9e4d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89271d0809966c41bed5b58190bb318c3ed4df6da13fe87d02dcf170d2a9e4d4", kill_on_drop: false }`
[INFO] [stdout] 89271d0809966c41bed5b58190bb318c3ed4df6da13fe87d02dcf170d2a9e4d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5863cabeff4837276279b224a12d880328a4119e585f8cf37803ff1472fcf53
[INFO] running `Command { std: "docker" "start" "-a" "e5863cabeff4837276279b224a12d880328a4119e585f8cf37803ff1472fcf53", kill_on_drop: false }`
[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 1.06s
[INFO] running `Command { std: "docker" "inspect" "e5863cabeff4837276279b224a12d880328a4119e585f8cf37803ff1472fcf53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5863cabeff4837276279b224a12d880328a4119e585f8cf37803ff1472fcf53", kill_on_drop: false }`
[INFO] [stdout] e5863cabeff4837276279b224a12d880328a4119e585f8cf37803ff1472fcf53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5e202544ffc0c129c8d3d44415666eb348d089f87bf74095b55e3bc6da83374d
[INFO] running `Command { std: "docker" "start" "-a" "5e202544ffc0c129c8d3d44415666eb348d089f87bf74095b55e3bc6da83374d", 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:589:13
[INFO] [stdout]     |
[INFO] [stdout] 589 |         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:591:34
[INFO] [stdout]     |
[INFO] [stdout] 591 |             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 0.75s
[INFO] running `Command { std: "docker" "inspect" "5e202544ffc0c129c8d3d44415666eb348d089f87bf74095b55e3bc6da83374d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e202544ffc0c129c8d3d44415666eb348d089f87bf74095b55e3bc6da83374d", kill_on_drop: false }`
[INFO] [stdout] 5e202544ffc0c129c8d3d44415666eb348d089f87bf74095b55e3bc6da83374d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 959dd7da09a7f1f55480f2ca00b47cd0d6c1ea3b2b93e952d26ef2b02231c1f2
[INFO] running `Command { std: "docker" "start" "-a" "959dd7da09a7f1f55480f2ca00b47cd0d6c1ea3b2b93e952d26ef2b02231c1f2", kill_on_drop: false }`
[INFO] [stderr] warning: variable `res` is assigned to, but never used
[INFO] [stderr]    --> src/lib.rs:589:13
[INFO] [stderr]     |
[INFO] [stderr] 589 |         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:591:34
[INFO] [stderr]     |
[INFO] [stderr] 591 |             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 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/perf_event_block-8f89ca8b8c4c9fc8)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::sleep_only ... ok
[INFO] [stdout] test tests::custom_events ... ok
[INFO] [stdout] test tests::long_computation_with_black_box ... ok
[INFO] [stdout] test tests::manual_usage ... ok
[INFO] [stderr]    Doc-tests perf_event_block
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 16.26s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 31) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 42) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 18) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[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] 3 | 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 42) stdout ----
[INFO] [stdout] error[E0432]: unresolved import `perfblock`
[INFO] [stdout]  --> src/lib.rs:43:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | 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] 3 | 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] 3 | 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" "959dd7da09a7f1f55480f2ca00b47cd0d6c1ea3b2b93e952d26ef2b02231c1f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "959dd7da09a7f1f55480f2ca00b47cd0d6c1ea3b2b93e952d26ef2b02231c1f2", kill_on_drop: false }`
[INFO] [stdout] 959dd7da09a7f1f55480f2ca00b47cd0d6c1ea3b2b93e952d26ef2b02231c1f2
