[INFO] fetching crate hamlrs 0.4.3... [INFO] checking hamlrs-0.4.3 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991 [INFO] extracting crate hamlrs 0.4.3 into /workspace/builds/worker-0/source [INFO] validating manifest of crates.io crate hamlrs 0.4.3 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate hamlrs 0.4.3 [INFO] finished tweaking crates.io crate hamlrs 0.4.3 [INFO] tweaked toml for crates.io crate hamlrs 0.4.3 written to /workspace/builds/worker-0/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3a46966b9fdfb47c7e0a536443e3b5070bc5f8b0929dbd503ccb76edbea8e38a [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" "3a46966b9fdfb47c7e0a536443e3b5070bc5f8b0929dbd503ccb76edbea8e38a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3a46966b9fdfb47c7e0a536443e3b5070bc5f8b0929dbd503ccb76edbea8e38a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a46966b9fdfb47c7e0a536443e3b5070bc5f8b0929dbd503ccb76edbea8e38a", kill_on_drop: false }` [INFO] [stdout] 3a46966b9fdfb47c7e0a536443e3b5070bc5f8b0929dbd503ccb76edbea8e38a [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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 974b10a1130c6a9e4d72c37205157c5bd8ebc6a2a5d3a9f9a92e2becf9c1249b [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" "974b10a1130c6a9e4d72c37205157c5bd8ebc6a2a5d3a9f9a92e2becf9c1249b", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling const_fn v0.4.3 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Compiling serde v1.0.117 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Compiling serde_json v1.0.59 [INFO] [stderr] Checking itoa v0.4.6 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Compiling serde_derive v1.0.117 [INFO] [stderr] Checking hamlrs v0.4.3 (/opt/rustwide/workdir) [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stdout] warning: value assigned to `token` is never read [INFO] [stdout] --> src/parser.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut token: Option<&Token> = None; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `class` is never read [INFO] [stdout] --> src/parser.rs:86:29 [INFO] [stdout] | [INFO] [stdout] 86 | let mut class = String::new(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `id` is never read [INFO] [stdout] --> src/parser.rs:101:29 [INFO] [stdout] | [INFO] [stdout] 101 | let mut id = String::new(); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> src/scanner.rs:68:21 [INFO] [stdout] | [INFO] [stdout] 68 | let mut value: Option = None; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.0 [INFO] [stderr] Compiling memoffset v0.5.6 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Checking criterion-plot v0.3.1 [INFO] [stderr] Compiling syn v1.0.48 [INFO] [stderr] Checking crossbeam-epoch v0.9.0 [INFO] [stderr] Checking crossbeam-channel v0.5.0 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking bstr v0.2.14 [INFO] [stderr] Checking csv v1.1.4 [INFO] [stderr] Checking tinytemplate v1.1.0 [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stdout] warning: value assigned to `token` is never read [INFO] [stdout] --> src/parser.rs:71:13 [INFO] [stdout] | [INFO] [stdout] 71 | let mut token: Option<&Token> = None; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `class` is never read [INFO] [stdout] --> src/parser.rs:86:29 [INFO] [stdout] | [INFO] [stdout] 86 | let mut class = String::new(); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `id` is never read [INFO] [stdout] --> src/parser.rs:101:29 [INFO] [stdout] | [INFO] [stdout] 101 | let mut id = String::new(); [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `value` is never read [INFO] [stdout] --> src/scanner.rs:68:21 [INFO] [stdout] | [INFO] [stdout] 68 | let mut value: Option = None; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 45.18s [INFO] running `Command { std: "docker" "inspect" "974b10a1130c6a9e4d72c37205157c5bd8ebc6a2a5d3a9f9a92e2becf9c1249b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "974b10a1130c6a9e4d72c37205157c5bd8ebc6a2a5d3a9f9a92e2becf9c1249b", kill_on_drop: false }` [INFO] [stdout] 974b10a1130c6a9e4d72c37205157c5bd8ebc6a2a5d3a9f9a92e2becf9c1249b