[INFO] fetching crate ryu 1.0.5...
[INFO] testing ryu-1.0.5 against 1.55.0 for beta-1.56-1
[INFO] extracting crate ryu 1.0.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ryu 1.0.5 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ryu 1.0.5
[INFO] finished tweaking crates.io crate ryu 1.0.5
[INFO] tweaked toml for crates.io crate ryu 1.0.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ryu 1.0.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] b72b1306d61c401c1ed0c1766084bc8c59eb28c03fa4b49c19f901c4c6dde1d1
[INFO] running `Command { std: "docker" "start" "-a" "b72b1306d61c401c1ed0c1766084bc8c59eb28c03fa4b49c19f901c4c6dde1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b72b1306d61c401c1ed0c1766084bc8c59eb28c03fa4b49c19f901c4c6dde1d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b72b1306d61c401c1ed0c1766084bc8c59eb28c03fa4b49c19f901c4c6dde1d1", kill_on_drop: false }`
[INFO] [stdout] b72b1306d61c401c1ed0c1766084bc8c59eb28c03fa4b49c19f901c4c6dde1d1
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 19e3b1f4e898ccf5a7080a0772b6fa7553dde276c1e05318df3f37de6f896aa5
[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" "19e3b1f4e898ccf5a7080a0772b6fa7553dde276c1e05318df3f37de6f896aa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.36s
[INFO] running `Command { std: "docker" "inspect" "19e3b1f4e898ccf5a7080a0772b6fa7553dde276c1e05318df3f37de6f896aa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19e3b1f4e898ccf5a7080a0772b6fa7553dde276c1e05318df3f37de6f896aa5", kill_on_drop: false }`
[INFO] [stdout] 19e3b1f4e898ccf5a7080a0772b6fa7553dde276c1e05318df3f37de6f896aa5
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] a8ff9cb147d731b99c58d62eadd3b74e8e62eaee171515a1671647d371aa7e11
[INFO] running `Command { std: "docker" "start" "-a" "a8ff9cb147d731b99c58d62eadd3b74e8e62eaee171515a1671647d371aa7e11", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_xorshift v0.2.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling ryu v1.0.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "a8ff9cb147d731b99c58d62eadd3b74e8e62eaee171515a1671647d371aa7e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8ff9cb147d731b99c58d62eadd3b74e8e62eaee171515a1671647d371aa7e11", kill_on_drop: false }`
[INFO] [stdout] a8ff9cb147d731b99c58d62eadd3b74e8e62eaee171515a1671647d371aa7e11
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b721e289bf9b93db5ac37fe33b8fcf35cdcabd077267ab4929ed6050959d6a4
[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" "0b721e289bf9b93db5ac37fe33b8fcf35cdcabd077267ab4929ed6050959d6a4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/ryu-c114710094d326f8)
[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/common_test.rs (/opt/rustwide/target/debug/deps/common_test-e00e8d7363ea8e08)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_decimal_length9 ... ok
[INFO] [stdout] test test_ceil_log2_pow5 ... ok
[INFO] [stdout] test test_double_to_bits ... ok
[INFO] [stdout] test test_float_to_bits ... ok
[INFO] [stdout] test test_log10_pow2 ... ok
[INFO] [stdout] test test_log10_pow5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/d2s_table_test.rs (/opt/rustwide/target/debug/deps/d2s_table_test-51d18e9f3a73127b)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_compute_inv_pow5 ... ok
[INFO] [stdout] test test_compute_pow5 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/d2s_test.rs (/opt/rustwide/target/debug/deps/d2s_test-d49cd2f87e3e048c)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] test test_lots_of_trailing_zeros ... ok
[INFO] [stdout] test test_looks_like_pow5 ... ok
[INFO] [stdout] test test_min_and_max ... ok
[INFO] [stdout] test test_min_max_shift ... ok
[INFO] [stdout] test test_output_length ... ok
[INFO] [stdout] test test_regression ... ok
[INFO] [stdout] test test_ryu ... ok
[INFO] [stdout] test test_small_integers ... ok
[INFO] [stdout] test test_switch_to_subnormal ... ok
[INFO] [stdout] test test_random ... ok
[INFO] [stdout] test test_non_finite ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.44s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/exhaustive.rs (/opt/rustwide/target/debug/deps/exhaustive-bda6800cfbb4ea69)
[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/f2s_test.rs (/opt/rustwide/target/debug/deps/f2s_test-96f5aad46f0f6d4b)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] test test_min_and_max ... ok
[INFO] [stdout] test test_lots_of_trailing_zeros ... ok
[INFO] [stdout] test test_output_length ... ok
[INFO] [stdout] test test_exact_value_round_even ... ok
[INFO] [stdout] test test_boundary_round_even ... ok
[INFO] [stdout] test test_looks_like_pow5 ... ok
[INFO] [stdout] test test_regression ... ok
[INFO] [stdout] test test_ryu ... ok
[INFO] [stdout] test test_switch_to_subnormal ... ok
[INFO] [stdout] test test_random ... ok
[INFO] [stdout] test test_non_finite ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.35s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/s2d_test.rs (/opt/rustwide/target/debug/deps/s2d_test-d7dacd928d0b99c5)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test test_bad_input ... ok
[INFO] [stdout] test test_issue157 ... ok
[INFO] [stdout] test test_mantissa_rounding_overflow ... ok
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] test test_overflow ... ok
[INFO] [stdout] test test_min_max ... ok
[INFO] [stdout] test test_table_size_denormal ... ok
[INFO] [stdout] test test_underflow ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/s2f_test.rs (/opt/rustwide/target/debug/deps/s2f_test-cf8a9c42f2bfe95c)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test_basic ... ok
[INFO] [stdout] test test_mantissa_rounding_overflow ... ok
[INFO] [stdout] test test_min_max ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ryu
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/pretty/mod.rs - pretty::format64 (line 37) ... ok
[INFO] [stdout] test src/buffer/mod.rs - buffer::Buffer (line 16) ... ok
[INFO] [stdout] test src/lib.rs - (line 24) ... ok
[INFO] [stdout] test src/pretty/mod.rs - pretty::format32 (line 144) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.32s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b721e289bf9b93db5ac37fe33b8fcf35cdcabd077267ab4929ed6050959d6a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b721e289bf9b93db5ac37fe33b8fcf35cdcabd077267ab4929ed6050959d6a4", kill_on_drop: false }`
[INFO] [stdout] 0b721e289bf9b93db5ac37fe33b8fcf35cdcabd077267ab4929ed6050959d6a4