[INFO] fetching crate rtt 0.4.4...
[INFO] testing rtt-0.4.4 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rtt 0.4.4 into /workspace/builds/worker-71/source
[INFO] validating manifest of crates.io crate rtt 0.4.4 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rtt 0.4.4
[INFO] finished tweaking crates.io crate rtt 0.4.4
[INFO] tweaked toml for crates.io crate rtt 0.4.4 written to /workspace/builds/worker-71/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d702c45f2796fe70f236fe9f6aa833021f8967ec146cfd8f949a351e4e075b6e
[INFO] running `Command { std: "docker" "start" "-a" "d702c45f2796fe70f236fe9f6aa833021f8967ec146cfd8f949a351e4e075b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d702c45f2796fe70f236fe9f6aa833021f8967ec146cfd8f949a351e4e075b6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d702c45f2796fe70f236fe9f6aa833021f8967ec146cfd8f949a351e4e075b6e", kill_on_drop: false }`
[INFO] [stdout] d702c45f2796fe70f236fe9f6aa833021f8967ec146cfd8f949a351e4e075b6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6861b14a0906f0e8145b9c5a63aad2ef45378248d0a9f95dab9050c6c9205510
[INFO] running `Command { std: "docker" "start" "-a" "6861b14a0906f0e8145b9c5a63aad2ef45378248d0a9f95dab9050c6c9205510", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rtt v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `Command { std: "docker" "inspect" "6861b14a0906f0e8145b9c5a63aad2ef45378248d0a9f95dab9050c6c9205510", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6861b14a0906f0e8145b9c5a63aad2ef45378248d0a9f95dab9050c6c9205510", kill_on_drop: false }`
[INFO] [stdout] 6861b14a0906f0e8145b9c5a63aad2ef45378248d0a9f95dab9050c6c9205510
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23afc433cf9dcffef05e162fce61552ceec59139c45e564c8fcc35272173861d
[INFO] running `Command { std: "docker" "start" "-a" "23afc433cf9dcffef05e162fce61552ceec59139c45e564c8fcc35272173861d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rtt v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.87s
[INFO] running `Command { std: "docker" "inspect" "23afc433cf9dcffef05e162fce61552ceec59139c45e564c8fcc35272173861d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23afc433cf9dcffef05e162fce61552ceec59139c45e564c8fcc35272173861d", kill_on_drop: false }`
[INFO] [stdout] 23afc433cf9dcffef05e162fce61552ceec59139c45e564c8fcc35272173861d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-71/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ddc6a8dbbcd23b39f3af39e9a85c9d0585a1cc4ba16c4df318eb6751bf1df819
[INFO] running `Command { std: "docker" "start" "-a" "ddc6a8dbbcd23b39f3af39e9a85c9d0585a1cc4ba16c4df318eb6751bf1df819", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rtt-7fbc8b3ad76bda47)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests rtt
[INFO] [stdout] test tests::skeleton ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 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" "ddc6a8dbbcd23b39f3af39e9a85c9d0585a1cc4ba16c4df318eb6751bf1df819", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddc6a8dbbcd23b39f3af39e9a85c9d0585a1cc4ba16c4df318eb6751bf1df819", kill_on_drop: false }`
[INFO] [stdout] ddc6a8dbbcd23b39f3af39e9a85c9d0585a1cc4ba16c4df318eb6751bf1df819