[INFO] fetching crate flamescope 0.1.2...
[INFO] testing flamescope-0.1.2 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate flamescope 0.1.2 into /workspace/builds/worker-67/source
[INFO] validating manifest of crates.io crate flamescope 0.1.2 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 flamescope 0.1.2
[INFO] finished tweaking crates.io crate flamescope 0.1.2
[INFO] tweaked toml for crates.io crate flamescope 0.1.2 written to /workspace/builds/worker-67/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 144426d5aff539a90addf986a484aadd6b8cc552284e10c51ffd00823647624d
[INFO] running `Command { std: "docker" "start" "-a" "144426d5aff539a90addf986a484aadd6b8cc552284e10c51ffd00823647624d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "144426d5aff539a90addf986a484aadd6b8cc552284e10c51ffd00823647624d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "144426d5aff539a90addf986a484aadd6b8cc552284e10c51ffd00823647624d", kill_on_drop: false }`
[INFO] [stdout] 144426d5aff539a90addf986a484aadd6b8cc552284e10c51ffd00823647624d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 3fe88d4aff750d204bf801303309d49a97077d98efb00dea3e9b8f9ee340cdcb
[INFO] running `Command { std: "docker" "start" "-a" "3fe88d4aff750d204bf801303309d49a97077d98efb00dea3e9b8f9ee340cdcb", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling flamescope v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "3fe88d4aff750d204bf801303309d49a97077d98efb00dea3e9b8f9ee340cdcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fe88d4aff750d204bf801303309d49a97077d98efb00dea3e9b8f9ee340cdcb", kill_on_drop: false }`
[INFO] [stdout] 3fe88d4aff750d204bf801303309d49a97077d98efb00dea3e9b8f9ee340cdcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] 425f4c992b0343e01047d37697d2e2e08a9e6c8711e5902e6f917673ac015688
[INFO] running `Command { std: "docker" "start" "-a" "425f4c992b0343e01047d37697d2e2e08a9e6c8711e5902e6f917673ac015688", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]    Compiling similar v1.3.0
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling console v0.14.1
[INFO] [stderr]    Compiling serde_yaml v0.8.21
[INFO] [stderr]    Compiling insta v1.7.2
[INFO] [stderr]    Compiling flamescope v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.74s
[INFO] running `Command { std: "docker" "inspect" "425f4c992b0343e01047d37697d2e2e08a9e6c8711e5902e6f917673ac015688", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "425f4c992b0343e01047d37697d2e2e08a9e6c8711e5902e6f917673ac015688", kill_on_drop: false }`
[INFO] [stdout] 425f4c992b0343e01047d37697d2e2e08a9e6c8711e5902e6f917673ac015688
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-67/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] b4c3ee0780f7fdc7ea19823dc0871ed108a227ebe53b3a83d3be33cfea06f72d
[INFO] running `Command { std: "docker" "start" "-a" "b4c3ee0780f7fdc7ea19823dc0871ed108a227ebe53b3a83d3be33cfea06f72d", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/flamescope-7b500e6c568abbb4)
[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] [stderr]      Running tests/snapshot.rs (/opt/rustwide/target/debug/deps/snapshot-ac6da49dc1883596)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests flamescope
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - dump (line 70) - compile ... ok
[INFO] [stdout] test src/lib.rs - write_spans (line 80) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b4c3ee0780f7fdc7ea19823dc0871ed108a227ebe53b3a83d3be33cfea06f72d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4c3ee0780f7fdc7ea19823dc0871ed108a227ebe53b3a83d3be33cfea06f72d", kill_on_drop: false }`
[INFO] [stdout] b4c3ee0780f7fdc7ea19823dc0871ed108a227ebe53b3a83d3be33cfea06f72d