[INFO] updating cached repository https://github.com/glugg23/huffman_coding
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 180497c9b7f11292fe6688bd3cef40d24ace30c9
[INFO] testing glugg23/huffman_coding against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglugg23%2Fhuffman_coding" "/workspace/builds/worker-13/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/glugg23/huffman_coding on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/glugg23/huffman_coding
[INFO] finished tweaking git repo https://github.com/glugg23/huffman_coding
[INFO] tweaked toml for git repo https://github.com/glugg23/huffman_coding written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/glugg23/huffman_coding already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8f8239c2f5330f47b46f46f001b5b59ddbae5d13fab43e1c2f2234ae592dfc3d
[INFO] running `"docker" "start" "-a" "8f8239c2f5330f47b46f46f001b5b59ddbae5d13fab43e1c2f2234ae592dfc3d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling bitvec v0.13.0
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling huffman_coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.78s
[INFO] running `"docker" "inspect" "8f8239c2f5330f47b46f46f001b5b59ddbae5d13fab43e1c2f2234ae592dfc3d"`
[INFO] running `"docker" "rm" "-f" "8f8239c2f5330f47b46f46f001b5b59ddbae5d13fab43e1c2f2234ae592dfc3d"`
[INFO] [stdout] 8f8239c2f5330f47b46f46f001b5b59ddbae5d13fab43e1c2f2234ae592dfc3d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0fb93136a9214274429a656fb6f81477a389a52fe3beaf464df2334a3def7dfc
[INFO] running `"docker" "start" "-a" "0fb93136a9214274429a656fb6f81477a389a52fe3beaf464df2334a3def7dfc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling huffman_coding v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.53s
[INFO] running `"docker" "inspect" "0fb93136a9214274429a656fb6f81477a389a52fe3beaf464df2334a3def7dfc"`
[INFO] running `"docker" "rm" "-f" "0fb93136a9214274429a656fb6f81477a389a52fe3beaf464df2334a3def7dfc"`
[INFO] [stdout] 0fb93136a9214274429a656fb6f81477a389a52fe3beaf464df2334a3def7dfc
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 76c14e9892bd4b308efc7a11bd46dda09a64bfd279c3dc96efed0eab33ae36dc
[INFO] running `"docker" "start" "-a" "76c14e9892bd4b308efc7a11bd46dda09a64bfd279c3dc96efed0eab33ae36dc"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/huffman_coding-b55843f72d1b78a2
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/huffman_coding-448508ce00a4a0c3
[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] [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] [stderr]    Doc-tests huffman_coding
[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 `"docker" "inspect" "76c14e9892bd4b308efc7a11bd46dda09a64bfd279c3dc96efed0eab33ae36dc"`
[INFO] running `"docker" "rm" "-f" "76c14e9892bd4b308efc7a11bd46dda09a64bfd279c3dc96efed0eab33ae36dc"`
[INFO] [stdout] 76c14e9892bd4b308efc7a11bd46dda09a64bfd279c3dc96efed0eab33ae36dc