[INFO] fetching crate isla-lib 0.1.0...
[INFO] documenting isla-lib-0.1.0 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate isla-lib 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate isla-lib 0.1.0 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate isla-lib 0.1.0
[INFO] finished tweaking crates.io crate isla-lib 0.1.0
[INFO] tweaked toml for crates.io crate isla-lib 0.1.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4c992815339790002adbbc761ddcb626fc3b5569d0b4a0cbdb69e6749c94e4d
[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" "b4c992815339790002adbbc761ddcb626fc3b5569d0b4a0cbdb69e6749c94e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4c992815339790002adbbc761ddcb626fc3b5569d0b4a0cbdb69e6749c94e4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4c992815339790002adbbc761ddcb626fc3b5569d0b4a0cbdb69e6749c94e4d", kill_on_drop: false }`
[INFO] [stdout] b4c992815339790002adbbc761ddcb626fc3b5569d0b4a0cbdb69e6749c94e4d
[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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5db9e2a121ec600aae5234a354158a55f105ba1e4d4726c85cbaede7b5f216f
[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" "e5db9e2a121ec600aae5234a354158a55f105ba1e4d4726c85cbaede7b5f216f", kill_on_drop: false }`
[INFO] [stderr]     Checking z3-sys v0.5.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking toml v0.5.7
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling string_cache v0.8.0
[INFO] [stderr]    Compiling lalrpop v0.19.1
[INFO] [stderr]    Compiling isla-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting isla-lib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]     --> src/executor.rs:1170:62
[INFO] [stdout]      |
[INFO] [stdout] 1170 |             collected.push(Ok((task_id, events.drain(..).map({ |ev| ev.clone() }).collect())))
[INFO] [stdout]      |                                                              ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]     --> src/executor.rs:1190:70
[INFO] [stdout]      |
[INFO] [stdout] 1190 |             collected.push(Ok((task_id, result, events.drain(..).map({ |ev| ev.clone() }).collect())))
[INFO] [stdout]      |                                                                      ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]     --> src/executor.rs:1212:62
[INFO] [stdout]      |
[INFO] [stdout] 1212 |             collected.push(Ok((task_id, events.drain(..).map({ |ev| ev.clone() }).collect())))
[INFO] [stdout]      |                                                              ^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 06s
[INFO] running `Command { std: "docker" "inspect" "e5db9e2a121ec600aae5234a354158a55f105ba1e4d4726c85cbaede7b5f216f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5db9e2a121ec600aae5234a354158a55f105ba1e4d4726c85cbaede7b5f216f", kill_on_drop: false }`
[INFO] [stdout] e5db9e2a121ec600aae5234a354158a55f105ba1e4d4726c85cbaede7b5f216f
