[INFO] fetching crate rtt-log 0.5.1...
[INFO] testing rtt-log-0.5.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate rtt-log 0.5.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rtt-log 0.5.1
[INFO] finished tweaking crates.io crate rtt-log 0.5.1
[INFO] tweaked toml for crates.io crate rtt-log 0.5.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rtt-log 0.5.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46c5ce4fe6d6f87ab928835bcff395b092830b9cbdd6ed1a1284ca97f6ae40db
[INFO] running `Command { std: "docker" "start" "-a" "46c5ce4fe6d6f87ab928835bcff395b092830b9cbdd6ed1a1284ca97f6ae40db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46c5ce4fe6d6f87ab928835bcff395b092830b9cbdd6ed1a1284ca97f6ae40db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46c5ce4fe6d6f87ab928835bcff395b092830b9cbdd6ed1a1284ca97f6ae40db", kill_on_drop: false }`
[INFO] [stdout] 46c5ce4fe6d6f87ab928835bcff395b092830b9cbdd6ed1a1284ca97f6ae40db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb58d1eb32c8f4cf5fbf4577925a22c896b787a0efda4b29388e78e2e71e81cf
[INFO] running `Command { std: "docker" "start" "-a" "cb58d1eb32c8f4cf5fbf4577925a22c896b787a0efda4b29388e78e2e71e81cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling portable-atomic v1.13.1
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling rtt-target v0.6.2
[INFO] [stderr]    Compiling rtt-log v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "cb58d1eb32c8f4cf5fbf4577925a22c896b787a0efda4b29388e78e2e71e81cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb58d1eb32c8f4cf5fbf4577925a22c896b787a0efda4b29388e78e2e71e81cf", kill_on_drop: false }`
[INFO] [stdout] cb58d1eb32c8f4cf5fbf4577925a22c896b787a0efda4b29388e78e2e71e81cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1edf3c2a1f93b84e3b84f025e68f9431547336d245a30b1096258c583d89904
[INFO] running `Command { std: "docker" "start" "-a" "c1edf3c2a1f93b84e3b84f025e68f9431547336d245a30b1096258c583d89904", kill_on_drop: false }`
[INFO] [stderr]    Compiling rtt-log v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "c1edf3c2a1f93b84e3b84f025e68f9431547336d245a30b1096258c583d89904", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1edf3c2a1f93b84e3b84f025e68f9431547336d245a30b1096258c583d89904", kill_on_drop: false }`
[INFO] [stdout] c1edf3c2a1f93b84e3b84f025e68f9431547336d245a30b1096258c583d89904
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3224e69cc75ee203772b48d86e79be9bb58891eba4520e6494d607e7e9c2106b
[INFO] running `Command { std: "docker" "start" "-a" "3224e69cc75ee203772b48d86e79be9bb58891eba4520e6494d607e7e9c2106b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rtt_log-95d0ad3304dd29e1)
[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" "3224e69cc75ee203772b48d86e79be9bb58891eba4520e6494d607e7e9c2106b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3224e69cc75ee203772b48d86e79be9bb58891eba4520e6494d607e7e9c2106b", kill_on_drop: false }`
[INFO] [stdout] 3224e69cc75ee203772b48d86e79be9bb58891eba4520e6494d607e7e9c2106b