[INFO] crate expression-num 0.2.3 is already in cache
[INFO] testing expression-num-0.2.3 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate expression-num 0.2.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate expression-num 0.2.3 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate expression-num 0.2.3
[INFO] finished tweaking crates.io crate expression-num 0.2.3
[INFO] tweaked toml for crates.io crate expression-num 0.2.3 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] 16a311f9437bd2b5e0b368f75aba6190749168f6c66c832b98f151de13db5ea8
[INFO] running `Command { std: "docker" "start" "-a" "16a311f9437bd2b5e0b368f75aba6190749168f6c66c832b98f151de13db5ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16a311f9437bd2b5e0b368f75aba6190749168f6c66c832b98f151de13db5ea8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16a311f9437bd2b5e0b368f75aba6190749168f6c66c832b98f151de13db5ea8", kill_on_drop: false }`
[INFO] [stdout] 16a311f9437bd2b5e0b368f75aba6190749168f6c66c832b98f151de13db5ea8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6882a6ce65d5e885577a6183189b1c5bf5e664fd7490ba543fda137238a22c43
[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" "6882a6ce65d5e885577a6183189b1c5bf5e664fd7490ba543fda137238a22c43", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling asexp v0.3.2
[INFO] [stderr]    Compiling expression v0.3.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling expression-num v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.96s
[INFO] running `Command { std: "docker" "inspect" "6882a6ce65d5e885577a6183189b1c5bf5e664fd7490ba543fda137238a22c43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6882a6ce65d5e885577a6183189b1c5bf5e664fd7490ba543fda137238a22c43", kill_on_drop: false }`
[INFO] [stdout] 6882a6ce65d5e885577a6183189b1c5bf5e664fd7490ba543fda137238a22c43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "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] d41ed693ed249a4995801a61e593e5170cbb5ff590945ccfdd14e78aed49738a
[INFO] running `Command { std: "docker" "start" "-a" "d41ed693ed249a4995801a61e593e5170cbb5ff590945ccfdd14e78aed49738a", kill_on_drop: false }`
[INFO] [stderr]    Compiling expression-num v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "d41ed693ed249a4995801a61e593e5170cbb5ff590945ccfdd14e78aed49738a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41ed693ed249a4995801a61e593e5170cbb5ff590945ccfdd14e78aed49738a", kill_on_drop: false }`
[INFO] [stdout] d41ed693ed249a4995801a61e593e5170cbb5ff590945ccfdd14e78aed49738a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a7979e3517a630d47f6d4c896508328f9fce92a60b48664bd3d2551fdb899bef
[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" "a7979e3517a630d47f6d4c896508328f9fce92a60b48664bd3d2551fdb899bef", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/expression_num-c3ee047d898d98ba
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_expr_divz ... ok
[INFO] [stdout] test test_expr_recipz ... ok
[INFO] [stdout] test test_expr ... ok
[INFO] [stdout] test test_constant_folding ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests expression-num
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a7979e3517a630d47f6d4c896508328f9fce92a60b48664bd3d2551fdb899bef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7979e3517a630d47f6d4c896508328f9fce92a60b48664bd3d2551fdb899bef", kill_on_drop: false }`
[INFO] [stdout] a7979e3517a630d47f6d4c896508328f9fce92a60b48664bd3d2551fdb899bef