[INFO] fetching crate maybe-cell 0.1.1...
[INFO] testing maybe-cell-0.1.1 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate maybe-cell 0.1.1 into /workspace/builds/worker-76/source
[INFO] validating manifest of crates.io crate maybe-cell 0.1.1 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "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-76/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d418ba280ffd24f1e2717490e456ba63b394e8454b802b625d6288b0eb03fbb0
[INFO] running `Command { std: "docker" "start" "-a" "d418ba280ffd24f1e2717490e456ba63b394e8454b802b625d6288b0eb03fbb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d418ba280ffd24f1e2717490e456ba63b394e8454b802b625d6288b0eb03fbb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d418ba280ffd24f1e2717490e456ba63b394e8454b802b625d6288b0eb03fbb0", kill_on_drop: false }`
[INFO] [stdout] d418ba280ffd24f1e2717490e456ba63b394e8454b802b625d6288b0eb03fbb0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 246972fd2a1ff6f374463cb1819ae5eeec13f0d45cfa5c396e771a2646811d44
[INFO] running `Command { std: "docker" "start" "-a" "246972fd2a1ff6f374463cb1819ae5eeec13f0d45cfa5c396e771a2646811d44", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maybe-cell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "246972fd2a1ff6f374463cb1819ae5eeec13f0d45cfa5c396e771a2646811d44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "246972fd2a1ff6f374463cb1819ae5eeec13f0d45cfa5c396e771a2646811d44", kill_on_drop: false }`
[INFO] [stdout] 246972fd2a1ff6f374463cb1819ae5eeec13f0d45cfa5c396e771a2646811d44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 144068c5181676bcd5aa2ad309ab96e8c6e26782fbdfe2dfcc63054dbc8d839e
[INFO] running `Command { std: "docker" "start" "-a" "144068c5181676bcd5aa2ad309ab96e8c6e26782fbdfe2dfcc63054dbc8d839e", kill_on_drop: false }`
[INFO] [stderr]    Compiling maybe-cell v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "144068c5181676bcd5aa2ad309ab96e8c6e26782fbdfe2dfcc63054dbc8d839e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "144068c5181676bcd5aa2ad309ab96e8c6e26782fbdfe2dfcc63054dbc8d839e", kill_on_drop: false }`
[INFO] [stdout] 144068c5181676bcd5aa2ad309ab96e8c6e26782fbdfe2dfcc63054dbc8d839e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-76/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f83932240b5ce65bf217355e7ea22d984018aa860912ea5cf6150e9c2800982a
[INFO] running `Command { std: "docker" "start" "-a" "f83932240b5ce65bf217355e7ea22d984018aa860912ea5cf6150e9c2800982a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maybe_cell-da09cfdf98f4e19d)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stderr]    Doc-tests maybe_cell
[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 0.00s
[INFO] [stdout] 
[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" "f83932240b5ce65bf217355e7ea22d984018aa860912ea5cf6150e9c2800982a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f83932240b5ce65bf217355e7ea22d984018aa860912ea5cf6150e9c2800982a", kill_on_drop: false }`
[INFO] [stdout] f83932240b5ce65bf217355e7ea22d984018aa860912ea5cf6150e9c2800982a