[INFO] fetching crate stag 0.3.0...
[INFO] testing stag-0.3.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate stag 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate stag 0.3.0 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 stag 0.3.0
[INFO] finished tweaking crates.io crate stag 0.3.0
[INFO] tweaked toml for crates.io crate stag 0.3.0 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] bcc37101ca11fad417d24ed6eb9e6f002275a8c33ad5db2df9658aba6e2964c9
[INFO] running `Command { std: "docker" "start" "-a" "bcc37101ca11fad417d24ed6eb9e6f002275a8c33ad5db2df9658aba6e2964c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bcc37101ca11fad417d24ed6eb9e6f002275a8c33ad5db2df9658aba6e2964c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bcc37101ca11fad417d24ed6eb9e6f002275a8c33ad5db2df9658aba6e2964c9", kill_on_drop: false }`
[INFO] [stdout] bcc37101ca11fad417d24ed6eb9e6f002275a8c33ad5db2df9658aba6e2964c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb6f229abc4a70bfacfc34f88d413a4489d3f1561ae7f43f86899f2392d6ef0c
[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" "eb6f229abc4a70bfacfc34f88d413a4489d3f1561ae7f43f86899f2392d6ef0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling inflate v0.3.4
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling png v0.11.0
[INFO] [stderr]    Compiling image v0.17.0
[INFO] [stderr]    Compiling stag v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.37s
[INFO] running `Command { std: "docker" "inspect" "eb6f229abc4a70bfacfc34f88d413a4489d3f1561ae7f43f86899f2392d6ef0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb6f229abc4a70bfacfc34f88d413a4489d3f1561ae7f43f86899f2392d6ef0c", kill_on_drop: false }`
[INFO] [stdout] eb6f229abc4a70bfacfc34f88d413a4489d3f1561ae7f43f86899f2392d6ef0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5887b3f1d4843de02ebf2c8521b58f2099bb82a062e29c798212b6fa5886b08
[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" "c5887b3f1d4843de02ebf2c8521b58f2099bb82a062e29c798212b6fa5886b08", kill_on_drop: false }`
[INFO] [stderr]    Compiling stag v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.08s
[INFO] running `Command { std: "docker" "inspect" "c5887b3f1d4843de02ebf2c8521b58f2099bb82a062e29c798212b6fa5886b08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5887b3f1d4843de02ebf2c8521b58f2099bb82a062e29c798212b6fa5886b08", kill_on_drop: false }`
[INFO] [stdout] c5887b3f1d4843de02ebf2c8521b58f2099bb82a062e29c798212b6fa5886b08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cab4ccf1fab2b23d2eeac9dbec448974fe6597a4854d0101afa2a8bd245379de
[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" "cab4ccf1fab2b23d2eeac9dbec448974fe6597a4854d0101afa2a8bd245379de", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/stag-ce76f5912ea847ba
[INFO] [stdout] running 5 tests
[INFO] [stdout] test gray_alpha::test::all ... ok
[INFO] [stdout] test rgb::test::all ... ok
[INFO] [stdout] test rgba::test::alpha ... ok
[INFO] [stdout] test gray_alpha::test::alpha ... ok
[INFO] [stdout] test rgba::test::all ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cab4ccf1fab2b23d2eeac9dbec448974fe6597a4854d0101afa2a8bd245379de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cab4ccf1fab2b23d2eeac9dbec448974fe6597a4854d0101afa2a8bd245379de", kill_on_drop: false }`
[INFO] [stdout] cab4ccf1fab2b23d2eeac9dbec448974fe6597a4854d0101afa2a8bd245379de