[INFO] fetching crate martin_tribal_test_art 0.1.0...
[INFO] testing martin_tribal_test_art-0.1.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate martin_tribal_test_art 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate martin_tribal_test_art 0.1.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate martin_tribal_test_art 0.1.0
[INFO] finished tweaking crates.io crate martin_tribal_test_art 0.1.0
[INFO] tweaked toml for crates.io crate martin_tribal_test_art 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 695c81ec17fbcfb1c19e3c02af542f6e91a5a997d9f2a1e7af919c9e50a22656
[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" "695c81ec17fbcfb1c19e3c02af542f6e91a5a997d9f2a1e7af919c9e50a22656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "695c81ec17fbcfb1c19e3c02af542f6e91a5a997d9f2a1e7af919c9e50a22656", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "695c81ec17fbcfb1c19e3c02af542f6e91a5a997d9f2a1e7af919c9e50a22656", kill_on_drop: false }`
[INFO] [stdout] 695c81ec17fbcfb1c19e3c02af542f6e91a5a997d9f2a1e7af919c9e50a22656
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", 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] e2a67f08267581e04765a3559455a8673f22b08c13e9027399a1350cbcaa086a
[INFO] running `Command { std: "docker" "start" "-a" "e2a67f08267581e04765a3559455a8673f22b08c13e9027399a1350cbcaa086a", kill_on_drop: false }`
[INFO] [stderr]    Compiling martin_tribal_test_art v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "e2a67f08267581e04765a3559455a8673f22b08c13e9027399a1350cbcaa086a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2a67f08267581e04765a3559455a8673f22b08c13e9027399a1350cbcaa086a", kill_on_drop: false }`
[INFO] [stdout] e2a67f08267581e04765a3559455a8673f22b08c13e9027399a1350cbcaa086a
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9342273075bf6f5ea78ae16e07cd1cdf07d25043cee1412fbedfd50fec982548
[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" "9342273075bf6f5ea78ae16e07cd1cdf07d25043cee1412fbedfd50fec982548", kill_on_drop: false }`
[INFO] [stderr]    Compiling martin_tribal_test_art v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "9342273075bf6f5ea78ae16e07cd1cdf07d25043cee1412fbedfd50fec982548", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9342273075bf6f5ea78ae16e07cd1cdf07d25043cee1412fbedfd50fec982548", kill_on_drop: false }`
[INFO] [stdout] 9342273075bf6f5ea78ae16e07cd1cdf07d25043cee1412fbedfd50fec982548
[INFO] running `Command { std: "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" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1b97497b9c9daba617bd026f3d3baa450e14ecb4731923e48197c693c9e91f69
[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" "1b97497b9c9daba617bd026f3d3baa450e14ecb4731923e48197c693c9e91f69", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/martin_tribal_test_art-edaf57e195a292cb
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests martin_tribal_test_art
[INFO] [stdout] test tests::mix_it_up ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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 `Command { std: "docker" "inspect" "1b97497b9c9daba617bd026f3d3baa450e14ecb4731923e48197c693c9e91f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b97497b9c9daba617bd026f3d3baa450e14ecb4731923e48197c693c9e91f69", kill_on_drop: false }`
[INFO] [stdout] 1b97497b9c9daba617bd026f3d3baa450e14ecb4731923e48197c693c9e91f69