[INFO] fetching crate embedded-error-chain 1.0.0...
[INFO] checking embedded-error-chain-1.0.0 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate embedded-error-chain 1.0.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate embedded-error-chain 1.0.0
[INFO] finished tweaking crates.io crate embedded-error-chain 1.0.0
[INFO] tweaked toml for crates.io crate embedded-error-chain 1.0.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate embedded-error-chain 1.0.0 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate embedded-error-chain 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e374f67f1543dfb245e1f7de3c9d2f790336eacb8a8c6c1895bf4ad552adfba8
[INFO] running `Command { std: "docker" "start" "-a" "e374f67f1543dfb245e1f7de3c9d2f790336eacb8a8c6c1895bf4ad552adfba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e374f67f1543dfb245e1f7de3c9d2f790336eacb8a8c6c1895bf4ad552adfba8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e374f67f1543dfb245e1f7de3c9d2f790336eacb8a8c6c1895bf4ad552adfba8", kill_on_drop: false }`
[INFO] [stdout] e374f67f1543dfb245e1f7de3c9d2f790336eacb8a8c6c1895bf4ad552adfba8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8486f9fcc7eb0e71ee92484914a2375d5b2092bef9600ff4c2e0f0ff9114ce4
[INFO] running `Command { std: "docker" "start" "-a" "e8486f9fcc7eb0e71ee92484914a2375d5b2092bef9600ff4c2e0f0ff9114ce4", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling embedded-error-chain-macros v1.0.0
[INFO] [stderr]     Checking embedded-error-chain v1.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: static `LAST_GYRO_ACC_READOUT` is never used
[INFO] [stdout]   --> examples/acc_gyro_errors.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | static LAST_GYRO_ACC_READOUT: usize = 200;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `SOME_GLOBAL_VARIABLE` is never used
[INFO] [stdout]  --> tests/error_attr.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | static SOME_GLOBAL_VARIABLE: usize = 200;
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `YetEmptyError` is never used
[INFO] [stdout]   --> tests/error_attr.rs:41:6
[INFO] [stdout]    |
[INFO] [stdout] 41 | enum YetEmptyError {}
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `Command { std: "docker" "inspect" "e8486f9fcc7eb0e71ee92484914a2375d5b2092bef9600ff4c2e0f0ff9114ce4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8486f9fcc7eb0e71ee92484914a2375d5b2092bef9600ff4c2e0f0ff9114ce4", kill_on_drop: false }`
[INFO] [stdout] e8486f9fcc7eb0e71ee92484914a2375d5b2092bef9600ff4c2e0f0ff9114ce4