[INFO] fetching crate numtoa 0.2.3...
[INFO] testing numtoa-0.2.3 against 1.49.0 for beta-1.50-1
[INFO] extracting crate numtoa 0.2.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate numtoa 0.2.3 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate numtoa 0.2.3
[INFO] finished tweaking crates.io crate numtoa 0.2.3
[INFO] tweaked toml for crates.io crate numtoa 0.2.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] c3258b2818fcdffcc9ff5d75e6a11013b3493857f12fa507f11383aee1e70c83
[INFO] running `Command { std: "docker" "start" "-a" "c3258b2818fcdffcc9ff5d75e6a11013b3493857f12fa507f11383aee1e70c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3258b2818fcdffcc9ff5d75e6a11013b3493857f12fa507f11383aee1e70c83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3258b2818fcdffcc9ff5d75e6a11013b3493857f12fa507f11383aee1e70c83", kill_on_drop: false }`
[INFO] [stdout] c3258b2818fcdffcc9ff5d75e6a11013b3493857f12fa507f11383aee1e70c83
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--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] 3cb0d37f438d2bffe8971f26c3c31186d703346fc3841ca744d390f2cdbc1530
[INFO] running `Command { std: "docker" "start" "-a" "3cb0d37f438d2bffe8971f26c3c31186d703346fc3841ca744d390f2cdbc1530", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtoa v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "3cb0d37f438d2bffe8971f26c3c31186d703346fc3841ca744d390f2cdbc1530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb0d37f438d2bffe8971f26c3c31186d703346fc3841ca744d390f2cdbc1530", kill_on_drop: false }`
[INFO] [stdout] 3cb0d37f438d2bffe8971f26c3c31186d703346fc3841ca744d390f2cdbc1530
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 13b4c6ee25e27a02a93e1f0214c0004dd92344c4cfab0aab32fd00319cb90e1b
[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" "13b4c6ee25e27a02a93e1f0214c0004dd92344c4cfab0aab32fd00319cb90e1b", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtoa v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "13b4c6ee25e27a02a93e1f0214c0004dd92344c4cfab0aab32fd00319cb90e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "13b4c6ee25e27a02a93e1f0214c0004dd92344c4cfab0aab32fd00319cb90e1b", kill_on_drop: false }`
[INFO] [stdout] 13b4c6ee25e27a02a93e1f0214c0004dd92344c4cfab0aab32fd00319cb90e1b
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 64c8878a76e8db62354bc0928dd8bea58a26bb95787131c6ddb01b13eeb137fd
[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" "64c8878a76e8db62354bc0928dd8bea58a26bb95787131c6ddb01b13eeb137fd", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/numtoa-97fd25009d77b572
[INFO] [stdout] running 19 tests
[INFO] [stdout] test base10_i32_array_just_right ... ok
[INFO] [stdout] test base10_u16_array_just_right ... ok
[INFO] [stdout] test base10_u32_array_just_right ... ok
[INFO] [stdout] test base16_min_signed_number ... ok
[INFO] [stdout] test base10_i16_array_just_right ... ok
[INFO] [stdout] test base10_i64_array_just_right ... ok
[INFO] [stdout] test base10_i8_array_just_right ... ok
[INFO] [stdout] test base8_min_signed_number ... ok
[INFO] [stdout] test str_convenience ... ok
[INFO] [stdout] test base10_u64_array_just_right ... ok
[INFO] [stdout] test base10_u8_array_just_right ... ok
[INFO] [stdout] test base10_i16_array_too_small ... ok
[INFO] [stdout] test base10_i32_array_too_small ... ok
[INFO] [stdout] test base10_u16_array_too_small ... ok
[INFO] [stdout] test base10_u8_array_too_small ... ok
[INFO] [stdout] test base10_u32_array_too_small ... ok
[INFO] [stdout] test base10_i64_array_too_small ... ok
[INFO] [stdout] test base10_i8_array_too_small ... ok
[INFO] [stdout] test base10_u64_array_too_small ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 19 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests numtoa
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - NumToA::numtoa (line 92) ... ok
[INFO] [stdout] test src/lib.rs - (line 27) ... ok
[INFO] [stdout] test src/lib.rs - (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "64c8878a76e8db62354bc0928dd8bea58a26bb95787131c6ddb01b13eeb137fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c8878a76e8db62354bc0928dd8bea58a26bb95787131c6ddb01b13eeb137fd", kill_on_drop: false }`
[INFO] [stdout] 64c8878a76e8db62354bc0928dd8bea58a26bb95787131c6ddb01b13eeb137fd