[INFO] crate robin-derives 0.3.0 is already in cache
[INFO] testing robin-derives-0.3.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate robin-derives 0.3.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate robin-derives 0.3.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate robin-derives 0.3.0
[INFO] finished tweaking crates.io crate robin-derives 0.3.0
[INFO] tweaked toml for crates.io crate robin-derives 0.3.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a4c377a040d82fa8ad13cb1920e587c9307cfd54ab7893e3155b8b79ee7d850d
[INFO] running `"docker" "start" "-a" "a4c377a040d82fa8ad13cb1920e587c9307cfd54ab7893e3155b8b79ee7d850d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling robin-derives v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `underscore`
[INFO] [stderr]    --> src/jobs.rs:111:4
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn underscore(s: &str) -> String {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.98s
[INFO] running `"docker" "inspect" "a4c377a040d82fa8ad13cb1920e587c9307cfd54ab7893e3155b8b79ee7d850d"`
[INFO] running `"docker" "rm" "-f" "a4c377a040d82fa8ad13cb1920e587c9307cfd54ab7893e3155b8b79ee7d850d"`
[INFO] [stdout] a4c377a040d82fa8ad13cb1920e587c9307cfd54ab7893e3155b8b79ee7d850d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bda67269a2fcab8d3253800277472169dad9c61c12cb8508b5853b88f9b4811d
[INFO] running `"docker" "start" "-a" "bda67269a2fcab8d3253800277472169dad9c61c12cb8508b5853b88f9b4811d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling robin-derives v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `underscore`
[INFO] [stderr]    --> src/jobs.rs:111:4
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn underscore(s: &str) -> String {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "bda67269a2fcab8d3253800277472169dad9c61c12cb8508b5853b88f9b4811d"`
[INFO] running `"docker" "rm" "-f" "bda67269a2fcab8d3253800277472169dad9c61c12cb8508b5853b88f9b4811d"`
[INFO] [stdout] bda67269a2fcab8d3253800277472169dad9c61c12cb8508b5853b88f9b4811d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0b86262447494f71a41bf8f04df5eb25839f6274916130592acac8bbe7799b66
[INFO] running `"docker" "start" "-a" "0b86262447494f71a41bf8f04df5eb25839f6274916130592acac8bbe7799b66"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: function is never used: `underscore`
[INFO] [stderr]    --> src/jobs.rs:111:4
[INFO] [stderr]     |
[INFO] [stderr] 111 | fn underscore(s: &str) -> String {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/robin_derives-101953bfa8ea871e
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test jobs::tests::test_underscore ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests robin-derives
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "0b86262447494f71a41bf8f04df5eb25839f6274916130592acac8bbe7799b66"`
[INFO] running `"docker" "rm" "-f" "0b86262447494f71a41bf8f04df5eb25839f6274916130592acac8bbe7799b66"`
[INFO] [stdout] 0b86262447494f71a41bf8f04df5eb25839f6274916130592acac8bbe7799b66