[INFO] cloning repository https://github.com/krlvi/wc-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krlvi/wc-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrlvi%2Fwc-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrlvi%2Fwc-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b89da8176c9215a7ec0ca69d1f418ca06808e901 [INFO] testing krlvi/wc-rs against 1.49.0 for beta-1.50-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrlvi%2Fwc-rs" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/krlvi/wc-rs 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/krlvi/wc-rs [INFO] finished tweaking git repo https://github.com/krlvi/wc-rs [INFO] tweaked toml for git repo https://github.com/krlvi/wc-rs written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/krlvi/wc-rs 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] [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" "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] [stdout] 815907ef2fb4981bc451a8499a4cfdd323ecc8f1410fd56f64d6594eb59def1e [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" "815907ef2fb4981bc451a8499a4cfdd323ecc8f1410fd56f64d6594eb59def1e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "815907ef2fb4981bc451a8499a4cfdd323ecc8f1410fd56f64d6594eb59def1e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "815907ef2fb4981bc451a8499a4cfdd323ecc8f1410fd56f64d6594eb59def1e", kill_on_drop: false }` [INFO] [stdout] 815907ef2fb4981bc451a8499a4cfdd323ecc8f1410fd56f64d6594eb59def1e [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" "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] ac2c048e979a648127422651b0883df1aa3e80faca02be59ba6052fbb1305773 [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" "ac2c048e979a648127422651b0883df1aa3e80faca02be59ba6052fbb1305773", kill_on_drop: false }` [INFO] [stderr] Compiling hashbrown v0.3.0 [INFO] [stderr] Compiling wc-rs 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:19:29 [INFO] [stdout] | [INFO] [stdout] 18 | if let Some(val) = dict.get(word) { [INFO] [stdout] | ---- immutable borrow occurs here [INFO] [stdout] 19 | dict.insert(String::from(word), *val + 1); [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `re` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:64:21 [INFO] [stdout] | [INFO] [stdout] 62 | match re.get(&k) { [INFO] [stdout] | -- immutable borrow occurs here [INFO] [stdout] 63 | Some(ev) => { [INFO] [stdout] 64 | re.insert(k, ev + v); [INFO] [stdout] | ^^ -- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs 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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.22s [INFO] running `Command { std: "docker" "inspect" "ac2c048e979a648127422651b0883df1aa3e80faca02be59ba6052fbb1305773", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ac2c048e979a648127422651b0883df1aa3e80faca02be59ba6052fbb1305773", kill_on_drop: false }` [INFO] [stdout] ac2c048e979a648127422651b0883df1aa3e80faca02be59ba6052fbb1305773 [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" "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] 1f2ebe1903ec3bc5c52e18b9fc121378eaa18d39da2b047e67d475523973a33e [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" "1f2ebe1903ec3bc5c52e18b9fc121378eaa18d39da2b047e67d475523973a33e", kill_on_drop: false }` [INFO] [stderr] Compiling wc-rs 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:19:29 [INFO] [stdout] | [INFO] [stdout] 18 | if let Some(val) = dict.get(word) { [INFO] [stdout] | ---- immutable borrow occurs here [INFO] [stdout] 19 | dict.insert(String::from(word), *val + 1); [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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: cannot borrow `re` as mutable because it is also borrowed as immutable [INFO] [stdout] --> src/main.rs:64:21 [INFO] [stdout] | [INFO] [stdout] 62 | match re.get(&k) { [INFO] [stdout] | -- immutable borrow occurs here [INFO] [stdout] 63 | Some(ev) => { [INFO] [stdout] 64 | re.insert(k, ev + v); [INFO] [stdout] | ^^ -- immutable borrow later used here [INFO] [stdout] | | [INFO] [stdout] | mutable borrow occurs 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 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.04s [INFO] running `Command { std: "docker" "inspect" "1f2ebe1903ec3bc5c52e18b9fc121378eaa18d39da2b047e67d475523973a33e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f2ebe1903ec3bc5c52e18b9fc121378eaa18d39da2b047e67d475523973a33e", kill_on_drop: false }` [INFO] [stdout] 1f2ebe1903ec3bc5c52e18b9fc121378eaa18d39da2b047e67d475523973a33e [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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7573837a09d06f51172eec6b9f921a6f596e21c52cf877d096265ed9ee082d81 [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" "7573837a09d06f51172eec6b9f921a6f596e21c52cf877d096265ed9ee082d81", kill_on_drop: false }` [INFO] [stderr] warning: cannot borrow `dict` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:19:29 [INFO] [stderr] | [INFO] [stderr] 18 | if let Some(val) = dict.get(word) { [INFO] [stderr] | ---- immutable borrow occurs here [INFO] [stderr] 19 | dict.insert(String::from(word), *val + 1); [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 [INFO] [stderr] [INFO] [stderr] warning: cannot borrow `re` as mutable because it is also borrowed as immutable [INFO] [stderr] --> src/main.rs:64:21 [INFO] [stderr] | [INFO] [stderr] 62 | match re.get(&k) { [INFO] [stderr] | -- immutable borrow occurs here [INFO] [stderr] 63 | Some(ev) => { [INFO] [stderr] 64 | re.insert(k, ev + v); [INFO] [stderr] | ^^ -- immutable borrow later used here [INFO] [stderr] | | [INFO] [stderr] | mutable borrow occurs 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 [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/wc_rs-dcd26e22edcca000 [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" "7573837a09d06f51172eec6b9f921a6f596e21c52cf877d096265ed9ee082d81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7573837a09d06f51172eec6b9f921a6f596e21c52cf877d096265ed9ee082d81", kill_on_drop: false }` [INFO] [stdout] 7573837a09d06f51172eec6b9f921a6f596e21c52cf877d096265ed9ee082d81