[INFO] fetching crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4...
[INFO] testing ffflaij23kap1p-crate-io-test-0.1.5-dev.4 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4
[INFO] finished tweaking crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4
[INFO] tweaked toml for crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate ffflaij23kap1p-crate-io-test 0.1.5-dev.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83c764d5bdd85d92f29615b05fb4251411630a4ef396f6eea469dcd4f83cde6a
[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" "83c764d5bdd85d92f29615b05fb4251411630a4ef396f6eea469dcd4f83cde6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83c764d5bdd85d92f29615b05fb4251411630a4ef396f6eea469dcd4f83cde6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83c764d5bdd85d92f29615b05fb4251411630a4ef396f6eea469dcd4f83cde6a", kill_on_drop: false }`
[INFO] [stdout] 83c764d5bdd85d92f29615b05fb4251411630a4ef396f6eea469dcd4f83cde6a
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 91f1aabefc9fc865b92cde64a605deb8939f5630266c7e0c4618dc9011c9d02d
[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" "91f1aabefc9fc865b92cde64a605deb8939f5630266c7e0c4618dc9011c9d02d", kill_on_drop: false }`
[INFO] [stderr]    Compiling ffflaij23kap1p-crate-io-test v0.1.5-dev.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn foo() {
[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 0.97s
[INFO] running `Command { std: "docker" "inspect" "91f1aabefc9fc865b92cde64a605deb8939f5630266c7e0c4618dc9011c9d02d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91f1aabefc9fc865b92cde64a605deb8939f5630266c7e0c4618dc9011c9d02d", kill_on_drop: false }`
[INFO] [stdout] 91f1aabefc9fc865b92cde64a605deb8939f5630266c7e0c4618dc9011c9d02d
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f83b778d86d87b32d59f16f923d41f42a48631f7ba00cbf21a5beae166c91079
[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" "f83b778d86d87b32d59f16f923d41f42a48631f7ba00cbf21a5beae166c91079", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn foo() {
[INFO] [stdout]   |    ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ffflaij23kap1p-crate-io-test v0.1.5-dev.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `foo`
[INFO] [stdout]  --> src/lib.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn foo() {
[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 test [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "f83b778d86d87b32d59f16f923d41f42a48631f7ba00cbf21a5beae166c91079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f83b778d86d87b32d59f16f923d41f42a48631f7ba00cbf21a5beae166c91079", kill_on_drop: false }`
[INFO] [stdout] f83b778d86d87b32d59f16f923d41f42a48631f7ba00cbf21a5beae166c91079
[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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", 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] a8a3bafd601d652700f09e0b63631985eed879f6ef2475db5b9acf738780a36e
[INFO] running `Command { std: "docker" "start" "-a" "a8a3bafd601d652700f09e0b63631985eed879f6ef2475db5b9acf738780a36e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `foo`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/lib.rs:4:4
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 4 | fn foo() {
[INFO] [stdout] 
[INFO] [stderr]   |    ^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `foo`
[INFO] [stderr]  --> src/lib.rs:4:4
[INFO] [stderr]   |
[INFO] [stderr] 4 | fn foo() {
[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 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ffflaij23kap1p_crate_io_test-277aa743045c9673
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ffflaij23kap1p_crate_io_test-7f0e6d202a78a1a2
[INFO] [stderr]    Doc-tests ffflaij23kap1p-crate-io-test
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a8a3bafd601d652700f09e0b63631985eed879f6ef2475db5b9acf738780a36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8a3bafd601d652700f09e0b63631985eed879f6ef2475db5b9acf738780a36e", kill_on_drop: false }`
[INFO] [stdout] a8a3bafd601d652700f09e0b63631985eed879f6ef2475db5b9acf738780a36e