[INFO] fetching crate myumberbar 0.0.2...
[INFO] testing myumberbar-0.0.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate myumberbar 0.0.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate myumberbar 0.0.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate myumberbar 0.0.2
[INFO] finished tweaking crates.io crate myumberbar 0.0.2
[INFO] tweaked toml for crates.io crate myumberbar 0.0.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate myumberbar 0.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v1.1.2
[INFO] [stderr]   Downloaded bytesize v1.0.1
[INFO] [stderr]   Downloaded systemstat v0.1.6
[INFO] [stderr]   Downloaded tokio v1.1.1
[INFO] [stderr]   Downloaded umberbar v0.7.6
[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" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "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] 3a0f202f4466f4eaf1cf2533130460f4d8ec4be4af6c8b0cfa1f91b91a3bd849
[INFO] running `Command { std: "docker" "start" "-a" "3a0f202f4466f4eaf1cf2533130460f4d8ec4be4af6c8b0cfa1f91b91a3bd849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a0f202f4466f4eaf1cf2533130460f4d8ec4be4af6c8b0cfa1f91b91a3bd849", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a0f202f4466f4eaf1cf2533130460f4d8ec4be4af6c8b0cfa1f91b91a3bd849", kill_on_drop: false }`
[INFO] [stdout] 3a0f202f4466f4eaf1cf2533130460f4d8ec4be4af6c8b0cfa1f91b91a3bd849
[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" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0711639f144b6e7a845a436dced756a188134cc335422da13304c4c85ec827e
[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" "c0711639f144b6e7a845a436dced756a188134cc335422da13304c4c85ec827e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.85
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling lexical-core v0.7.6
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling tap v1.0.0
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.4
[INFO] [stderr]    Compiling bytesize v1.0.1
[INFO] [stderr]    Compiling tokio v1.1.1
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling nom v6.1.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]    Compiling bitvec v0.19.4
[INFO] [stderr]    Compiling thread_local v1.1.2
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling parking_lot_core v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.7
[INFO] [stderr]    Compiling signal-hook-registry v1.3.0
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling regex v1.4.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling systemstat v0.1.6
[INFO] [stderr]    Compiling tokio-macros v1.0.0
[INFO] [stderr]    Compiling umberbar v0.7.6
[INFO] [stderr]    Compiling myumberbar v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.31s
[INFO] running `Command { std: "docker" "inspect" "c0711639f144b6e7a845a436dced756a188134cc335422da13304c4c85ec827e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0711639f144b6e7a845a436dced756a188134cc335422da13304c4c85ec827e", kill_on_drop: false }`
[INFO] [stdout] c0711639f144b6e7a845a436dced756a188134cc335422da13304c4c85ec827e
[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" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b815ebbd3c909e8c4c56b2d5caf64fd6f7ae55b468bbbf64394f6e334540908c
[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" "b815ebbd3c909e8c4c56b2d5caf64fd6f7ae55b468bbbf64394f6e334540908c", kill_on_drop: false }`
[INFO] [stderr]    Compiling myumberbar v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "b815ebbd3c909e8c4c56b2d5caf64fd6f7ae55b468bbbf64394f6e334540908c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b815ebbd3c909e8c4c56b2d5caf64fd6f7ae55b468bbbf64394f6e334540908c", kill_on_drop: false }`
[INFO] [stdout] b815ebbd3c909e8c4c56b2d5caf64fd6f7ae55b468bbbf64394f6e334540908c
[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" "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" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 098094c6ef514b1a198003cbffcaf3f649a809b0bab8e528d7a79781bc3fa74e
[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" "098094c6ef514b1a198003cbffcaf3f649a809b0bab8e528d7a79781bc3fa74e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/myumberbar-74baf101f5c49023)
[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] running `Command { std: "docker" "inspect" "098094c6ef514b1a198003cbffcaf3f649a809b0bab8e528d7a79781bc3fa74e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "098094c6ef514b1a198003cbffcaf3f649a809b0bab8e528d7a79781bc3fa74e", kill_on_drop: false }`
[INFO] [stdout] 098094c6ef514b1a198003cbffcaf3f649a809b0bab8e528d7a79781bc3fa74e