[INFO] fetching crate graphstack 0.1.2...
[INFO] testing graphstack-0.1.2 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate graphstack 0.1.2 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate graphstack 0.1.2 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate graphstack 0.1.2
[INFO] finished tweaking crates.io crate graphstack 0.1.2
[INFO] tweaked toml for crates.io crate graphstack 0.1.2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51c0a7c04e69c9c397b19bdb159fcb74eaad0804a45872a16efc4b9aae48be7c
[INFO] running `Command { std: "docker" "start" "-a" "51c0a7c04e69c9c397b19bdb159fcb74eaad0804a45872a16efc4b9aae48be7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51c0a7c04e69c9c397b19bdb159fcb74eaad0804a45872a16efc4b9aae48be7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51c0a7c04e69c9c397b19bdb159fcb74eaad0804a45872a16efc4b9aae48be7c", kill_on_drop: false }`
[INFO] [stdout] 51c0a7c04e69c9c397b19bdb159fcb74eaad0804a45872a16efc4b9aae48be7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9c190753a9131a22780aeb9a02d3c3b38a794cb7dc049d143228e4f443039d7
[INFO] running `Command { std: "docker" "start" "-a" "d9c190753a9131a22780aeb9a02d3c3b38a794cb7dc049d143228e4f443039d7", kill_on_drop: false }`
[INFO] [stderr]    Compiling graphstack v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `Command { std: "docker" "inspect" "d9c190753a9131a22780aeb9a02d3c3b38a794cb7dc049d143228e4f443039d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9c190753a9131a22780aeb9a02d3c3b38a794cb7dc049d143228e4f443039d7", kill_on_drop: false }`
[INFO] [stdout] d9c190753a9131a22780aeb9a02d3c3b38a794cb7dc049d143228e4f443039d7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e538d41ec3466a87d1e92f800399123933f0d3e1ca359967df29f8fc0152eba
[INFO] running `Command { std: "docker" "start" "-a" "2e538d41ec3466a87d1e92f800399123933f0d3e1ca359967df29f8fc0152eba", kill_on_drop: false }`
[INFO] [stderr]    Compiling graphstack v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.66s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/graphstack-a94f20b9a47c01b4)
[INFO] running `Command { std: "docker" "inspect" "2e538d41ec3466a87d1e92f800399123933f0d3e1ca359967df29f8fc0152eba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e538d41ec3466a87d1e92f800399123933f0d3e1ca359967df29f8fc0152eba", kill_on_drop: false }`
[INFO] [stdout] 2e538d41ec3466a87d1e92f800399123933f0d3e1ca359967df29f8fc0152eba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3ba341003a2f4c6ca998c57270317e3308fafe50adc77df710d3f3877cbf15c4
[INFO] running `Command { std: "docker" "start" "-a" "3ba341003a2f4c6ca998c57270317e3308fafe50adc77df710d3f3877cbf15c4", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/graphstack-a94f20b9a47c01b4)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::check_iterator ... ok
[INFO] [stdout] test tests::disjoint_stacks ... ok
[INFO] [stdout] test tests::x_stack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests graphstack
[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" "3ba341003a2f4c6ca998c57270317e3308fafe50adc77df710d3f3877cbf15c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ba341003a2f4c6ca998c57270317e3308fafe50adc77df710d3f3877cbf15c4", kill_on_drop: false }`
[INFO] [stdout] 3ba341003a2f4c6ca998c57270317e3308fafe50adc77df710d3f3877cbf15c4