[INFO] cloning repository https://github.com/amscotti/rust_balanced_brackets
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amscotti/rust_balanced_brackets" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famscotti%2Frust_balanced_brackets", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famscotti%2Frust_balanced_brackets'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eca8dc8dedb54326a0968fc9ce47991c662eb41f
[INFO] testing amscotti/rust_balanced_brackets against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famscotti%2Frust_balanced_brackets" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amscotti/rust_balanced_brackets 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 git repo https://github.com/amscotti/rust_balanced_brackets
[INFO] finished tweaking git repo https://github.com/amscotti/rust_balanced_brackets
[INFO] tweaked toml for git repo https://github.com/amscotti/rust_balanced_brackets written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/amscotti/rust_balanced_brackets 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stable_deref_trait v1.0.0
[INFO] [stderr]   Downloaded parking_lot_core v0.2.2
[INFO] [stderr]   Downloaded parking_lot v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc1b9c2c10a8e0ad483dcef255b4250304b2deb366ac94e3e57b73a15f3d8d4e
[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" "dc1b9c2c10a8e0ad483dcef255b4250304b2deb366ac94e3e57b73a15f3d8d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc1b9c2c10a8e0ad483dcef255b4250304b2deb366ac94e3e57b73a15f3d8d4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc1b9c2c10a8e0ad483dcef255b4250304b2deb366ac94e3e57b73a15f3d8d4e", kill_on_drop: false }`
[INFO] [stdout] dc1b9c2c10a8e0ad483dcef255b4250304b2deb366ac94e3e57b73a15f3d8d4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2021-01-01" "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] 944181b715f56961d5c08f4b6ed32ac4bdabd1e15778b34e0242070a88c28ecb
[INFO] running `Command { std: "docker" "start" "-a" "944181b715f56961d5c08f4b6ed32ac4bdabd1e15778b34e0242070a88c28ecb", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.23
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling stable_deref_trait v1.0.0
[INFO] [stderr]    Compiling smallvec v0.4.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling rand v0.3.15
[INFO] [stderr]    Compiling thread-id v3.1.0
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]    Compiling parking_lot_core v0.2.2
[INFO] [stderr]    Compiling parking_lot v0.4.4
[INFO] [stderr]    Compiling number_prefix v0.2.8
[INFO] [stderr]    Compiling console v0.7.5
[INFO] [stderr]    Compiling indicatif v0.11.0
[INFO] [stderr]    Compiling rust_balanced_brackets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.21s
[INFO] running `Command { std: "docker" "inspect" "944181b715f56961d5c08f4b6ed32ac4bdabd1e15778b34e0242070a88c28ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "944181b715f56961d5c08f4b6ed32ac4bdabd1e15778b34e0242070a88c28ecb", kill_on_drop: false }`
[INFO] [stdout] 944181b715f56961d5c08f4b6ed32ac4bdabd1e15778b34e0242070a88c28ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] 108ba94d467274aa48feb9c67111b5f3f2c6fbc170f273b72ef10ad8fbcd3111
[INFO] running `Command { std: "docker" "start" "-a" "108ba94d467274aa48feb9c67111b5f3f2c6fbc170f273b72ef10ad8fbcd3111", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_balanced_brackets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "108ba94d467274aa48feb9c67111b5f3f2c6fbc170f273b72ef10ad8fbcd3111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "108ba94d467274aa48feb9c67111b5f3f2c6fbc170f273b72ef10ad8fbcd3111", kill_on_drop: false }`
[INFO] [stdout] 108ba94d467274aa48feb9c67111b5f3f2c6fbc170f273b72ef10ad8fbcd3111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+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] 066009ac5f69c1db884222352642ca348abef62dc3b61cdcdfe317d34b754aab
[INFO] running `Command { std: "docker" "start" "-a" "066009ac5f69c1db884222352642ca348abef62dc3b61cdcdfe317d34b754aab", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_balanced_brackets-99b21eaa9eba0514
[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" "066009ac5f69c1db884222352642ca348abef62dc3b61cdcdfe317d34b754aab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "066009ac5f69c1db884222352642ca348abef62dc3b61cdcdfe317d34b754aab", kill_on_drop: false }`
[INFO] [stdout] 066009ac5f69c1db884222352642ca348abef62dc3b61cdcdfe317d34b754aab