[INFO] fetching crate sudokugen 0.2.0...
[INFO] checking sudokugen-0.2.0 against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] extracting crate sudokugen 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sudokugen 0.2.0 on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sudokugen 0.2.0
[INFO] finished tweaking crates.io crate sudokugen 0.2.0
[INFO] tweaked toml for crates.io crate sudokugen 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "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" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-backend v0.3.0
[INFO] [stderr]   Downloaded web-sys v0.3.51
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded log v0.4.14
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.74
[INFO] [stderr]   Downloaded plotters-svg v0.3.0
[INFO] [stderr]   Downloaded js-sys v0.3.51
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.74
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.74
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded oorandom v11.1.3
[INFO] [stderr]   Downloaded bumpalo v3.6.1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.10
[INFO] [stderr]   Downloaded itertools v0.10.0
[INFO] [stderr]   Downloaded serde_cbor v0.11.1
[INFO] [stderr]   Downloaded criterion-plot v0.4.3
[INFO] [stderr]   Downloaded half v1.7.1
[INFO] [stderr]   Downloaded criterion v0.3.4
[INFO] [stderr]   Downloaded getrandom v0.1.16
[INFO] [stderr]   Downloaded wasm-bindgen-shared v0.2.74
[INFO] [stderr]   Downloaded plotters v0.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.74
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e71addcb104e82bd8e47ba7152b2e1746d63ca0c1a618672ee2132ede0ba621
[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" "1e71addcb104e82bd8e47ba7152b2e1746d63ca0c1a618672ee2132ede0ba621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e71addcb104e82bd8e47ba7152b2e1746d63ca0c1a618672ee2132ede0ba621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e71addcb104e82bd8e47ba7152b2e1746d63ca0c1a618672ee2132ede0ba621", kill_on_drop: false }`
[INFO] [stdout] 1e71addcb104e82bd8e47ba7152b2e1746d63ca0c1a618672ee2132ede0ba621
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a333764eb74056a35d11b5369969798bc74de67ddfb12eff88b7aa5e4c184f94
[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" "a333764eb74056a35d11b5369969798bc74de67ddfb12eff88b7aa5e4c184f94", kill_on_drop: false }`
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking sudokugen v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.53s
[INFO] running `Command { std: "docker" "inspect" "a333764eb74056a35d11b5369969798bc74de67ddfb12eff88b7aa5e4c184f94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a333764eb74056a35d11b5369969798bc74de67ddfb12eff88b7aa5e4c184f94", kill_on_drop: false }`
[INFO] [stdout] a333764eb74056a35d11b5369969798bc74de67ddfb12eff88b7aa5e4c184f94