[INFO] fetching crate f_log 0.1.7...
[INFO] testing f_log-0.1.7 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate f_log 0.1.7 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate f_log 0.1.7
[INFO] finished tweaking crates.io crate f_log 0.1.7
[INFO] tweaked toml for crates.io crate f_log 0.1.7 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate f_log 0.1.7 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate f_log 0.1.7 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c2fb578c4b20cdf445bb8d9d671a2f749a3f92e61c805cfc40bbb2d424d643d
[INFO] running `Command { std: "docker" "start" "-a" "5c2fb578c4b20cdf445bb8d9d671a2f749a3f92e61c805cfc40bbb2d424d643d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c2fb578c4b20cdf445bb8d9d671a2f749a3f92e61c805cfc40bbb2d424d643d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c2fb578c4b20cdf445bb8d9d671a2f749a3f92e61c805cfc40bbb2d424d643d", kill_on_drop: false }`
[INFO] [stdout] 5c2fb578c4b20cdf445bb8d9d671a2f749a3f92e61c805cfc40bbb2d424d643d
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17e7906cdfce7d12746a2422e25c0be3a258aa9f414f31e567f79e474d8d3ce2
[INFO] running `Command { std: "docker" "start" "-a" "17e7906cdfce7d12746a2422e25c0be3a258aa9f414f31e567f79e474d8d3ce2", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling chrono v0.4.41
[INFO] [stderr]    Compiling f_log v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let msg = match info.payload().downcast_ref::<&str>() {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/lib.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if let Some(location) = info.location() {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.24s
[INFO] running `Command { std: "docker" "inspect" "17e7906cdfce7d12746a2422e25c0be3a258aa9f414f31e567f79e474d8d3ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17e7906cdfce7d12746a2422e25c0be3a258aa9f414f31e567f79e474d8d3ce2", kill_on_drop: false }`
[INFO] [stdout] 17e7906cdfce7d12746a2422e25c0be3a258aa9f414f31e567f79e474d8d3ce2
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c2081ec8329df919aa24c2d5b39d41c910519181b52b36171ee271d4b3471786
[INFO] running `Command { std: "docker" "start" "-a" "c2081ec8329df919aa24c2d5b39d41c910519181b52b36171ee271d4b3471786", kill_on_drop: false }`
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let msg = match info.payload().downcast_ref::<&str>() {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/lib.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if let Some(location) = info.location() {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling f_log v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `msg`
[INFO] [stdout]   --> src/lib.rs:72:17
[INFO] [stdout]    |
[INFO] [stdout] 72 |             let msg = match info.payload().downcast_ref::<&str>() {
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `location`
[INFO] [stdout]   --> src/lib.rs:77:25
[INFO] [stdout]    |
[INFO] [stdout] 77 |             if let Some(location) = info.location() {
[INFO] [stdout]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "c2081ec8329df919aa24c2d5b39d41c910519181b52b36171ee271d4b3471786", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2081ec8329df919aa24c2d5b39d41c910519181b52b36171ee271d4b3471786", kill_on_drop: false }`
[INFO] [stdout] c2081ec8329df919aa24c2d5b39d41c910519181b52b36171ee271d4b3471786
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05c97980cf989648719e8d717e162b453f98ddc74f486c5708821b026b79fb33
[INFO] running `Command { std: "docker" "start" "-a" "05c97980cf989648719e8d717e162b453f98ddc74f486c5708821b026b79fb33", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/lib.rs:72:17
[INFO] [stderr]    |
[INFO] [stderr] 72 |             let msg = match info.payload().downcast_ref::<&str>() {
[INFO] [stderr]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_msg`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `location`
[INFO] [stderr]   --> src/lib.rs:77:25
[INFO] [stderr]    |
[INFO] [stderr] 77 |             if let Some(location) = info.location() {
[INFO] [stderr]    |                         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_location`
[INFO] [stderr] 
[INFO] [stderr] warning: `f_log` (lib) generated 2 warnings (run `cargo fix --lib -p f_log` to apply 2 suggestions)
[INFO] [stderr] warning: `f_log` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/f_log-083d5c43d33920d5)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests f_log
[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] [stdout] 
[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" "05c97980cf989648719e8d717e162b453f98ddc74f486c5708821b026b79fb33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05c97980cf989648719e8d717e162b453f98ddc74f486c5708821b026b79fb33", kill_on_drop: false }`
[INFO] [stdout] 05c97980cf989648719e8d717e162b453f98ddc74f486c5708821b026b79fb33