[INFO] cloning repository https://github.com/arnasjozonis/lz78
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arnasjozonis/lz78" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnasjozonis%2Flz78", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnasjozonis%2Flz78'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 873537bb7077881db9baf4021864d7a785efaa24
[INFO] testing arnasjozonis/lz78 against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farnasjozonis%2Flz78" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arnasjozonis/lz78 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arnasjozonis/lz78
[INFO] finished tweaking git repo https://github.com/arnasjozonis/lz78
[INFO] tweaked toml for git repo https://github.com/arnasjozonis/lz78 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/arnasjozonis/lz78 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f46e05ebffa0bb05c8cd3b4324dbc7d52936df8cadc7894775dd4750f873507d
[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" "f46e05ebffa0bb05c8cd3b4324dbc7d52936df8cadc7894775dd4750f873507d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f46e05ebffa0bb05c8cd3b4324dbc7d52936df8cadc7894775dd4750f873507d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f46e05ebffa0bb05c8cd3b4324dbc7d52936df8cadc7894775dd4750f873507d", kill_on_drop: false }`
[INFO] [stdout] f46e05ebffa0bb05c8cd3b4324dbc7d52936df8cadc7894775dd4750f873507d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11b385711ad05631e8115c2cb1e4403249c1728d294c06c6290fc66289a3527c
[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" "11b385711ad05631e8115c2cb1e4403249c1728d294c06c6290fc66289a3527c", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitbit v0.2.0
[INFO] [stderr]    Compiling lz78 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let parent = dict.nodes.get(current_node.parent_node).unwrap();
[INFO] [stdout]     |                      ---------- immutable borrow occurs here
[INFO] [stdout] 136 |         dict.add_node(current_node.value, parent.index);
[INFO] [stdout]     |         ^^^^ mutable borrow occurs here   ------------ immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/main.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let parent = dict.nodes.get(current_node.parent_node).unwrap();
[INFO] [stdout]     |                      ---------- immutable borrow occurs here
[INFO] [stdout] 172 |         dict.add_node(current_node.value, parent.index);
[INFO] [stdout]     |         ^^^^ mutable borrow occurs here   ------------ immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.96s
[INFO] running `Command { std: "docker" "inspect" "11b385711ad05631e8115c2cb1e4403249c1728d294c06c6290fc66289a3527c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b385711ad05631e8115c2cb1e4403249c1728d294c06c6290fc66289a3527c", kill_on_drop: false }`
[INFO] [stdout] 11b385711ad05631e8115c2cb1e4403249c1728d294c06c6290fc66289a3527c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bf2066d4d6e4e018739f9afd448a496195718b6891d12c038a27345ae8960a29
[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" "bf2066d4d6e4e018739f9afd448a496195718b6891d12c038a27345ae8960a29", kill_on_drop: false }`
[INFO] [stderr]    Compiling lz78 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/main.rs:136:9
[INFO] [stdout]     |
[INFO] [stdout] 135 |         let parent = dict.nodes.get(current_node.parent_node).unwrap();
[INFO] [stdout]     |                      ---------- immutable borrow occurs here
[INFO] [stdout] 136 |         dict.add_node(current_node.value, parent.index);
[INFO] [stdout]     |         ^^^^ mutable borrow occurs here   ------------ immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable
[INFO] [stdout]    --> src/main.rs:172:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |         let parent = dict.nodes.get(current_node.parent_node).unwrap();
[INFO] [stdout]     |                      ---------- immutable borrow occurs here
[INFO] [stdout] 172 |         dict.add_node(current_node.value, parent.index);
[INFO] [stdout]     |         ^^^^ mutable borrow occurs here   ------------ immutable borrow later used here
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stdout]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] running `Command { std: "docker" "inspect" "bf2066d4d6e4e018739f9afd448a496195718b6891d12c038a27345ae8960a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf2066d4d6e4e018739f9afd448a496195718b6891d12c038a27345ae8960a29", kill_on_drop: false }`
[INFO] [stdout] bf2066d4d6e4e018739f9afd448a496195718b6891d12c038a27345ae8960a29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a9e262f59b13c4002f5bd61f433aa5766cc59b2d1b0f1c037d86771d87454e23
[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" "a9e262f59b13c4002f5bd61f433aa5766cc59b2d1b0f1c037d86771d87454e23", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable
[INFO] [stdout] running 2 tests
[INFO] [stderr]    --> src/main.rs:136:9
[INFO] [stdout] test tests::test_adding_node ... ok
[INFO] [stderr]     |
[INFO] [stdout] test tests::test_log2 ... ok
[INFO] [stderr] 135 |         let parent = dict.nodes.get(current_node.parent_node).unwrap();
[INFO] [stdout] 
[INFO] [stderr]     |                      ---------- immutable borrow occurs here
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 136 |         dict.add_node(current_node.value, parent.index);
[INFO] [stdout] 
[INFO] [stderr]     |         ^^^^ mutable borrow occurs here   ------------ immutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/main.rs:172:9
[INFO] [stderr]     |
[INFO] [stderr] 171 |         let parent = dict.nodes.get(current_node.parent_node).unwrap();
[INFO] [stderr]     |                      ---------- immutable borrow occurs here
[INFO] [stderr] 172 |         dict.add_node(current_node.value, parent.index);
[INFO] [stderr]     |         ^^^^ mutable borrow occurs here   ------------ immutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/lz78-3386e8b3089878e3
[INFO] running `Command { std: "docker" "inspect" "a9e262f59b13c4002f5bd61f433aa5766cc59b2d1b0f1c037d86771d87454e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e262f59b13c4002f5bd61f433aa5766cc59b2d1b0f1c037d86771d87454e23", kill_on_drop: false }`
[INFO] [stdout] a9e262f59b13c4002f5bd61f433aa5766cc59b2d1b0f1c037d86771d87454e23
