[INFO] fetching crate win_dbg_logger 0.1.0...
[INFO] testing win_dbg_logger-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate win_dbg_logger 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate win_dbg_logger 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate win_dbg_logger 0.1.0
[INFO] finished tweaking crates.io crate win_dbg_logger 0.1.0
[INFO] tweaked toml for crates.io crate win_dbg_logger 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate win_dbg_logger 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 619e9d3b7a6aced8c28b5af7d664fa58e1e3e2da458bb26c351f3efaf91156b2
[INFO] running `Command { std: "docker" "start" "-a" "619e9d3b7a6aced8c28b5af7d664fa58e1e3e2da458bb26c351f3efaf91156b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "619e9d3b7a6aced8c28b5af7d664fa58e1e3e2da458bb26c351f3efaf91156b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "619e9d3b7a6aced8c28b5af7d664fa58e1e3e2da458bb26c351f3efaf91156b2", kill_on_drop: false }`
[INFO] [stdout] 619e9d3b7a6aced8c28b5af7d664fa58e1e3e2da458bb26c351f3efaf91156b2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df63b84259f207f5d9a1c503e37da9cdf9036cbbd05b448c661d5bf1d8f7d42e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "df63b84259f207f5d9a1c503e37da9cdf9036cbbd05b448c661d5bf1d8f7d42e", kill_on_drop: false }`
[INFO] [stderr]    Compiling win_dbg_logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn output_debug_string(s: &str) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "df63b84259f207f5d9a1c503e37da9cdf9036cbbd05b448c661d5bf1d8f7d42e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df63b84259f207f5d9a1c503e37da9cdf9036cbbd05b448c661d5bf1d8f7d42e", kill_on_drop: false }`
[INFO] [stdout] df63b84259f207f5d9a1c503e37da9cdf9036cbbd05b448c661d5bf1d8f7d42e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb94d7c4a7e18feac924b8460c261cc1453f5aafdb0899002e3f0495439717fe
[INFO] running `Command { std: "docker" "start" "-a" "bb94d7c4a7e18feac924b8460c261cc1453f5aafdb0899002e3f0495439717fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling win_dbg_logger v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn output_debug_string(s: &str) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lib.rs:77:28
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub fn output_debug_string(s: &str) {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "bb94d7c4a7e18feac924b8460c261cc1453f5aafdb0899002e3f0495439717fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb94d7c4a7e18feac924b8460c261cc1453f5aafdb0899002e3f0495439717fe", kill_on_drop: false }`
[INFO] [stdout] bb94d7c4a7e18feac924b8460c261cc1453f5aafdb0899002e3f0495439717fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 79210a1e51cf181d66370604a018f105df5cdc0a80ba711dc44a7333fb96885f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "79210a1e51cf181d66370604a018f105df5cdc0a80ba711dc44a7333fb96885f", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/lib.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn output_debug_string(s: &str) {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/lib.rs:77:28
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn output_debug_string(s: &str) {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/win_dbg_logger-68f6d9adec4aa965
[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
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests win_dbg_logger
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - rust_win_dbg_logger_init_debug (line 171) ... ignored
[INFO] [stdout] test src/lib.rs - rust_win_dbg_logger_init_error (line 173) ... ignored
[INFO] [stdout] test src/lib.rs - rust_win_dbg_logger_init_info (line 169) ... ignored
[INFO] [stdout] test src/lib.rs - rust_win_dbg_logger_init_trace (line 170) ... ignored
[INFO] [stdout] test src/lib.rs - rust_win_dbg_logger_init_warn (line 172) ... ignored
[INFO] [stdout] test src/lib.rs - DEBUGGER_LOGGER (line 38) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 5 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "79210a1e51cf181d66370604a018f105df5cdc0a80ba711dc44a7333fb96885f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79210a1e51cf181d66370604a018f105df5cdc0a80ba711dc44a7333fb96885f", kill_on_drop: false }`
[INFO] [stdout] 79210a1e51cf181d66370604a018f105df5cdc0a80ba711dc44a7333fb96885f