[INFO] fetching crate rust-cef-derive 0.0.8...
[INFO] checking rust-cef-derive-0.0.8 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate rust-cef-derive 0.0.8 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rust-cef-derive 0.0.8 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-cef-derive 0.0.8
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rust-cef-derive 0.0.8
[INFO] tweaked toml for crates.io crate rust-cef-derive 0.0.8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "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" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--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 toml v0.5.6
[INFO] [stderr]   Downloaded winapi-util v0.1.5
[INFO] [stderr]   Downloaded serde_json v1.0.57
[INFO] [stderr]   Downloaded inflections v1.1.1
[INFO] [stderr]   Downloaded serde_derive v1.0.115
[INFO] [stderr]   Downloaded serde v1.0.115
[INFO] [stderr]   Downloaded rust-cef v0.0.5
[INFO] [stderr]   Downloaded dissimilar v1.0.2
[INFO] [stderr]   Downloaded trybuild v1.0.33
[INFO] [stderr]   Downloaded proc-macro2 v1.0.20
[INFO] [stderr]   Downloaded syn v1.0.40
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded itoa v0.4.6
[INFO] [stderr]   Downloaded ryu v1.0.5
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25d31780250b4beab88bed8f41753b8dfb10db18cd9364e15d78b0c6fe11396d
[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" "25d31780250b4beab88bed8f41753b8dfb10db18cd9364e15d78b0c6fe11396d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25d31780250b4beab88bed8f41753b8dfb10db18cd9364e15d78b0c6fe11396d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25d31780250b4beab88bed8f41753b8dfb10db18cd9364e15d78b0c6fe11396d", kill_on_drop: false }`
[INFO] [stdout] 25d31780250b4beab88bed8f41753b8dfb10db18cd9364e15d78b0c6fe11396d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 062ddf88bda27760dd8384a95e517c7b388e1207cd2598ac19a11f8436a65640
[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" "062ddf88bda27760dd8384a95e517c7b388e1207cd2598ac19a11f8436a65640", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-cef v0.0.5
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.115
[INFO] [stderr]     Checking rust-cef-derive v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.115
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking trybuild v1.0.33
[INFO] [stdout] warning: field is never read: `unused`
[INFO] [stdout]    --> tests/test.rs:303:9
[INFO] [stdout]     |
[INFO] [stdout] 303 |         unused: usize,
[INFO] [stdout]     |         ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.31s
[INFO] running `Command { std: "docker" "inspect" "062ddf88bda27760dd8384a95e517c7b388e1207cd2598ac19a11f8436a65640", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "062ddf88bda27760dd8384a95e517c7b388e1207cd2598ac19a11f8436a65640", kill_on_drop: false }`
[INFO] [stdout] 062ddf88bda27760dd8384a95e517c7b388e1207cd2598ac19a11f8436a65640