[INFO] fetching crate signifix 0.10.1...
[INFO] testing signifix-0.10.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate signifix 0.10.1 into /workspace/builds/worker-60/source
[INFO] validating manifest of crates.io crate signifix 0.10.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate signifix 0.10.1
[INFO] finished tweaking crates.io crate signifix 0.10.1
[INFO] tweaked toml for crates.io crate signifix 0.10.1 written to /workspace/builds/worker-60/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc508fe9e04e32df67d460dbb38b26eaeaa358e17618b4de6bd2e075ba20b35f
[INFO] running `Command { std: "docker" "start" "-a" "dc508fe9e04e32df67d460dbb38b26eaeaa358e17618b4de6bd2e075ba20b35f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc508fe9e04e32df67d460dbb38b26eaeaa358e17618b4de6bd2e075ba20b35f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc508fe9e04e32df67d460dbb38b26eaeaa358e17618b4de6bd2e075ba20b35f", kill_on_drop: false }`
[INFO] [stdout] dc508fe9e04e32df67d460dbb38b26eaeaa358e17618b4de6bd2e075ba20b35f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e99fb39ae76d2e31f05a1adf27f39f1dab1ece272746191492d0918ab12e5e76
[INFO] running `Command { std: "docker" "start" "-a" "e99fb39ae76d2e31f05a1adf27f39f1dab1ece272746191492d0918ab12e5e76", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling signifix v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.74s
[INFO] running `Command { std: "docker" "inspect" "e99fb39ae76d2e31f05a1adf27f39f1dab1ece272746191492d0918ab12e5e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e99fb39ae76d2e31f05a1adf27f39f1dab1ece272746191492d0918ab12e5e76", kill_on_drop: false }`
[INFO] [stdout] e99fb39ae76d2e31f05a1adf27f39f1dab1ece272746191492d0918ab12e5e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5b152754442e86a332522093513dc37bd56209209987a1382c62fb4cc7140ca
[INFO] running `Command { std: "docker" "start" "-a" "a5b152754442e86a332522093513dc37bd56209209987a1382c62fb4cc7140ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling signifix v0.10.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "a5b152754442e86a332522093513dc37bd56209209987a1382c62fb4cc7140ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5b152754442e86a332522093513dc37bd56209209987a1382c62fb4cc7140ca", kill_on_drop: false }`
[INFO] [stdout] a5b152754442e86a332522093513dc37bd56209209987a1382c62fb4cc7140ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-60/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b146655201ca117c1383128364f6499c79ca7bd7a92f2993814a9d359034eab1
[INFO] running `Command { std: "docker" "start" "-a" "b146655201ca117c1383128364f6499c79ca7bd7a92f2993814a9d359034eab1", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/signifix-5a71f867b09c7417)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test binary::tests::factors_to_symbols ... ok
[INFO] [stdout] test binary::tests::fixed_significance ... ok
[INFO] [stdout] test binary::tests::formatting_options ... ok
[INFO] [stdout] test binary::tests::fp_category_safety ... ok
[INFO] [stdout] test binary::tests::lower_prefix_bound ... ok
[INFO] [stdout] test binary::tests::mem_size_of_struct ... ok
[INFO] [stdout] test binary::tests::ord_implementation ... ok
[INFO] [stdout] test binary::tests::upper_prefix_bound ... ok
[INFO] [stdout] test binary::tests::upper_prefix_round ... ok
[INFO] [stdout] test metric::tests::factors_to_symbols ... ok
[INFO] [stdout] test metric::tests::fixed_significance ... ok
[INFO] [stdout] test metric::tests::formatting_options ... ok
[INFO] [stdout] test metric::tests::fp_category_safety ... ok
[INFO] [stdout] test metric::tests::lower_prefix_bound ... ok
[INFO] [stdout] test metric::tests::mem_size_of_struct ... ok
[INFO] [stdout] test metric::tests::ord_implementation ... ok
[INFO] [stdout] test metric::tests::upper_prefix_bound ... ok
[INFO] [stdout] test metric::tests::upper_prefix_round ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests signifix
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - (line 150) ... ok
[INFO] [stdout] test src/lib.rs - (line 200) ... ok
[INFO] [stdout] test src/lib.rs - (line 285) ... ok
[INFO] [stdout] test src/lib.rs - (line 224) ... ok
[INFO] [stdout] test src/lib.rs - (line 245) ... ok
[INFO] [stdout] test src/lib.rs - (line 329) ... ok
[INFO] [stdout] test src/lib.rs - (line 95) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.42s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b146655201ca117c1383128364f6499c79ca7bd7a92f2993814a9d359034eab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b146655201ca117c1383128364f6499c79ca7bd7a92f2993814a9d359034eab1", kill_on_drop: false }`
[INFO] [stdout] b146655201ca117c1383128364f6499c79ca7bd7a92f2993814a9d359034eab1