[INFO] fetching crate cortex-dispatcher 0.1.2...
[INFO] checking cortex-dispatcher-0.1.2 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate cortex-dispatcher 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate cortex-dispatcher 0.1.2 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cortex-dispatcher 0.1.2
[INFO] finished tweaking crates.io crate cortex-dispatcher 0.1.2
[INFO] tweaked toml for crates.io crate cortex-dispatcher 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", 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] e87f5b365ce31616b8b747b47e1e89be9121e1fafb46b647cdcf78aeb88ba1b9
[INFO] running `Command { std: "docker" "start" "-a" "e87f5b365ce31616b8b747b47e1e89be9121e1fafb46b647cdcf78aeb88ba1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e87f5b365ce31616b8b747b47e1e89be9121e1fafb46b647cdcf78aeb88ba1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87f5b365ce31616b8b747b47e1e89be9121e1fafb46b647cdcf78aeb88ba1b9", kill_on_drop: false }`
[INFO] [stdout] e87f5b365ce31616b8b747b47e1e89be9121e1fafb46b647cdcf78aeb88ba1b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 445b2b9df77286ddebe5c69bbc2e68f91935a85f35582854c38b22f6a73e7c1f
[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" "445b2b9df77286ddebe5c69bbc2e68f91935a85f35582854c38b22f6a73e7c1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking serde_test v0.8.23
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking serde_regex v0.3.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking linked-hash-map v0.3.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking config v0.9.3
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking cortex-dispatcher v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:71:15
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if let Ok(c) = merge_result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `c`
[INFO] [stdout]   --> src/main.rs:71:15
[INFO] [stdout]    |
[INFO] [stdout] 71 |     if let Ok(c) = merge_result {
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_c`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.44s
[INFO] running `Command { std: "docker" "inspect" "445b2b9df77286ddebe5c69bbc2e68f91935a85f35582854c38b22f6a73e7c1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "445b2b9df77286ddebe5c69bbc2e68f91935a85f35582854c38b22f6a73e7c1f", kill_on_drop: false }`
[INFO] [stdout] 445b2b9df77286ddebe5c69bbc2e68f91935a85f35582854c38b22f6a73e7c1f