[INFO] cloning repository https://github.com/Shrekie/collection-sandbox
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shrekie/collection-sandbox" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShrekie%2Fcollection-sandbox", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShrekie%2Fcollection-sandbox'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8f8d5043966b828f5ba5c36d130504309c072e3
[INFO] testing Shrekie/collection-sandbox against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShrekie%2Fcollection-sandbox" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Shrekie/collection-sandbox 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 git repo https://github.com/Shrekie/collection-sandbox
[INFO] finished tweaking git repo https://github.com/Shrekie/collection-sandbox
[INFO] tweaked toml for git repo https://github.com/Shrekie/collection-sandbox written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/Shrekie/collection-sandbox already has a lockfile, it will not be regenerated
[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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] d96a3b9d0c43286b3dd50c366c1a6d49c883f4bda3ce48522b8ad0791a01a1f4
[INFO] running `Command { std: "docker" "start" "-a" "d96a3b9d0c43286b3dd50c366c1a6d49c883f4bda3ce48522b8ad0791a01a1f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d96a3b9d0c43286b3dd50c366c1a6d49c883f4bda3ce48522b8ad0791a01a1f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d96a3b9d0c43286b3dd50c366c1a6d49c883f4bda3ce48522b8ad0791a01a1f4", kill_on_drop: false }`
[INFO] [stdout] d96a3b9d0c43286b3dd50c366c1a6d49c883f4bda3ce48522b8ad0791a01a1f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] f9a156098800452e1a25b4e4d7d73e615ba65f5b7a41a6a8eb3e57bd3cc896ee
[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" "f9a156098800452e1a25b4e4d7d73e615ba65f5b7a41a6a8eb3e57bd3cc896ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling collection-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "f9a156098800452e1a25b4e4d7d73e615ba65f5b7a41a6a8eb3e57bd3cc896ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a156098800452e1a25b4e4d7d73e615ba65f5b7a41a6a8eb3e57bd3cc896ee", kill_on_drop: false }`
[INFO] [stdout] f9a156098800452e1a25b4e4d7d73e615ba65f5b7a41a6a8eb3e57bd3cc896ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 4edb5ea3daa82096853026b00ad4c61024d48dfd1b670b1177679f5a14a266cd
[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" "4edb5ea3daa82096853026b00ad4c61024d48dfd1b670b1177679f5a14a266cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling collection-sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.00s
[INFO] running `Command { std: "docker" "inspect" "4edb5ea3daa82096853026b00ad4c61024d48dfd1b670b1177679f5a14a266cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4edb5ea3daa82096853026b00ad4c61024d48dfd1b670b1177679f5a14a266cd", kill_on_drop: false }`
[INFO] [stdout] 4edb5ea3daa82096853026b00ad4c61024d48dfd1b670b1177679f5a14a266cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] 4b54faf348f1424b1cbb04382f75459d0c7d12a598119bf747a1b2d84383d195
[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" "4b54faf348f1424b1cbb04382f75459d0c7d12a598119bf747a1b2d84383d195", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/collection_sandbox-ee989a83848be801
[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" "4b54faf348f1424b1cbb04382f75459d0c7d12a598119bf747a1b2d84383d195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b54faf348f1424b1cbb04382f75459d0c7d12a598119bf747a1b2d84383d195", kill_on_drop: false }`
[INFO] [stdout] 4b54faf348f1424b1cbb04382f75459d0c7d12a598119bf747a1b2d84383d195