[INFO] fetching crate kv_cab 0.6.0...
[INFO] documenting kv_cab-0.6.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate kv_cab 0.6.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate kv_cab 0.6.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate kv_cab 0.6.0
[INFO] finished tweaking crates.io crate kv_cab 0.6.0
[INFO] tweaked toml for crates.io crate kv_cab 0.6.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bincode v0.7.0
[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 074c78e5557c23e44b15fa3e4f3983361ccd01b7b9359b1f09702782aed257f5
[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" "074c78e5557c23e44b15fa3e4f3983361ccd01b7b9359b1f09702782aed257f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "074c78e5557c23e44b15fa3e4f3983361ccd01b7b9359b1f09702782aed257f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "074c78e5557c23e44b15fa3e4f3983361ccd01b7b9359b1f09702782aed257f5", kill_on_drop: false }`
[INFO] [stdout] 074c78e5557c23e44b15fa3e4f3983361ccd01b7b9359b1f09702782aed257f5
[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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 7faa7df0c2e5f0d53852577180dc846609044c41cd7cc38a84d82f6065a357d9
[INFO] running `Command { std: "docker" "start" "-a" "7faa7df0c2e5f0d53852577180dc846609044c41cd7cc38a84d82f6065a357d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_codegen_internals v0.14.2
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking bincode v0.7.0
[INFO] [stderr]    Compiling serde_derive v0.9.15
[INFO] [stderr]  Documenting kv_cab v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 181 |                     last_retry!(i, return Err(KVError::CouldntOpen));
[INFO] [stdout]     |                     ------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 254 |                 last_retry!(i, return Err(KVError::CouldntWriteLock));
[INFO] [stdout]     |                 ------------------------------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 270 |                 last_retry!(i, return Err(KVError::CouldntSeekToStart));
[INFO] [stdout]     |                 -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 277 |                 last_retry!(i, return Err(KVError::CouldntWrite));
[INFO] [stdout]     |                 -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 284 |                 last_retry!(i, return Err(KVError::CouldntFlush));
[INFO] [stdout]     |                 -------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 291 |                 last_retry!(i, return Err(KVError::CouldntUnlock));
[INFO] [stdout]     |                 --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 317 |                 last_retry!(i, return Err(KVError::CouldntSeekToStart));
[INFO] [stdout]     |                 -------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 329 |                                 last_retry!(i, return Err(KVError::CouldntUnlock));
[INFO] [stdout]     |                                 --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 349 |                             last_retry!(i, return Err(KVError::CouldntUnlock));
[INFO] [stdout]     |                             --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> src/lib.rs:99:15
[INFO] [stdout]     |
[INFO] [stdout] 99  |             $b;
[INFO] [stdout]     |               ^ help: remove this semicolon
[INFO] [stdout] ...
[INFO] [stdout] 356 |                     last_retry!(i, return Err(KVError::CouldntDecode));
[INFO] [stdout]     |                     --------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.27s
[INFO] running `Command { std: "docker" "inspect" "7faa7df0c2e5f0d53852577180dc846609044c41cd7cc38a84d82f6065a357d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7faa7df0c2e5f0d53852577180dc846609044c41cd7cc38a84d82f6065a357d9", kill_on_drop: false }`
[INFO] [stdout] 7faa7df0c2e5f0d53852577180dc846609044c41cd7cc38a84d82f6065a357d9