[INFO] fetching crate maybe-cell 0.1.1...
[INFO] testing maybe-cell-0.1.1 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate maybe-cell 0.1.1 into /workspace/builds/worker-119/source
[INFO] validating manifest of crates.io crate maybe-cell 0.1.1 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 maybe-cell 0.1.1
[INFO] finished tweaking crates.io crate maybe-cell 0.1.1
[INFO] tweaked toml for crates.io crate maybe-cell 0.1.1 written to /workspace/builds/worker-119/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] [stdout] 92c4dd0c6e29b072498f2074c6d4978f4b329f037d99fdd71fc4e0975906bd91
[INFO] running `Command { std: "docker" "start" "-a" "92c4dd0c6e29b072498f2074c6d4978f4b329f037d99fdd71fc4e0975906bd91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92c4dd0c6e29b072498f2074c6d4978f4b329f037d99fdd71fc4e0975906bd91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92c4dd0c6e29b072498f2074c6d4978f4b329f037d99fdd71fc4e0975906bd91", kill_on_drop: false }`
[INFO] [stdout] 92c4dd0c6e29b072498f2074c6d4978f4b329f037d99fdd71fc4e0975906bd91
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] 5e39a4045e7fbcbe661af93cf971a272bb40f99ad85f21b955f31c6e7fbf6e0d
[INFO] running `Command { std: "docker" "start" "-a" "5e39a4045e7fbcbe661af93cf971a272bb40f99ad85f21b955f31c6e7fbf6e0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-cell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "5e39a4045e7fbcbe661af93cf971a272bb40f99ad85f21b955f31c6e7fbf6e0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e39a4045e7fbcbe661af93cf971a272bb40f99ad85f21b955f31c6e7fbf6e0d", kill_on_drop: false }`
[INFO] [stdout] 5e39a4045e7fbcbe661af93cf971a272bb40f99ad85f21b955f31c6e7fbf6e0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] e664bc65c39bf342a3d1ee6e391a95d4d7a075081455ce21478160f33a2fe079
[INFO] running `Command { std: "docker" "start" "-a" "e664bc65c39bf342a3d1ee6e391a95d4d7a075081455ce21478160f33a2fe079", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-cell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "e664bc65c39bf342a3d1ee6e391a95d4d7a075081455ce21478160f33a2fe079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e664bc65c39bf342a3d1ee6e391a95d4d7a075081455ce21478160f33a2fe079", kill_on_drop: false }`
[INFO] [stdout] e664bc65c39bf342a3d1ee6e391a95d4d7a075081455ce21478160f33a2fe079
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-119/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] 0dae5021943109862354f95a596d2f6e2ab03a96500b421b2552157b40d6e3fb
[INFO] running `Command { std: "docker" "start" "-a" "0dae5021943109862354f95a596d2f6e2ab03a96500b421b2552157b40d6e3fb", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maybe_cell-da09cfdf98f4e19d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::checked_init_read_write ... ok
[INFO] [stdout] test tests::unchecked_init_read_write ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests maybe_cell
[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" "0dae5021943109862354f95a596d2f6e2ab03a96500b421b2552157b40d6e3fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dae5021943109862354f95a596d2f6e2ab03a96500b421b2552157b40d6e3fb", kill_on_drop: false }`
[INFO] [stdout] 0dae5021943109862354f95a596d2f6e2ab03a96500b421b2552157b40d6e3fb