[INFO] cloning repository https://github.com/qinzhengke/rust-lang-example [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/qinzhengke/rust-lang-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinzhengke%2Frust-lang-example", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinzhengke%2Frust-lang-example'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] cb8fe0ad69e0de43a8d14e4063856fea3fa346aa [INFO] testing qinzhengke/rust-lang-example against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fqinzhengke%2Frust-lang-example" "/workspace/builds/worker-105/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-105/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/qinzhengke/rust-lang-example 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 git repo https://github.com/qinzhengke/rust-lang-example [INFO] finished tweaking git repo https://github.com/qinzhengke/rust-lang-example [INFO] tweaked toml for git repo https://github.com/qinzhengke/rust-lang-example written to /workspace/builds/worker-105/source/Cargo.toml [INFO] crate git repo https://github.com/qinzhengke/rust-lang-example already has a lockfile, it will not be regenerated [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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 89c15d551a6c953c1266173234ff8984cc2ceb3324661a2f9a27b21d35d7ae0b [INFO] running `Command { std: "docker" "start" "-a" "89c15d551a6c953c1266173234ff8984cc2ceb3324661a2f9a27b21d35d7ae0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "89c15d551a6c953c1266173234ff8984cc2ceb3324661a2f9a27b21d35d7ae0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "89c15d551a6c953c1266173234ff8984cc2ceb3324661a2f9a27b21d35d7ae0b", kill_on_drop: false }` [INFO] [stdout] 89c15d551a6c953c1266173234ff8984cc2ceb3324661a2f9a27b21d35d7ae0b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 31fa7d5565ea5aee70a1f473cbcb5268bbd1bde83b837b9029477fa9a720a30c [INFO] running `Command { std: "docker" "start" "-a" "31fa7d5565ea5aee70a1f473cbcb5268bbd1bde83b837b9029477fa9a720a30c", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling rust-lang-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/types.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut c:i8 = -10; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/types.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut d:u8 = 255; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `r2` [INFO] [stdout] --> src/ownership.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let r2 = &mut s1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_r2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ownership.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let mut s1 = String::from("hello"); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 3.53s [INFO] running `Command { std: "docker" "inspect" "31fa7d5565ea5aee70a1f473cbcb5268bbd1bde83b837b9029477fa9a720a30c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "31fa7d5565ea5aee70a1f473cbcb5268bbd1bde83b837b9029477fa9a720a30c", kill_on_drop: false }` [INFO] [stdout] 31fa7d5565ea5aee70a1f473cbcb5268bbd1bde83b837b9029477fa9a720a30c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 3d10fe824c231e40e5dbc0d140ed982d2b0b3c972672a38b8b0847d3837806f6 [INFO] running `Command { std: "docker" "start" "-a" "3d10fe824c231e40e5dbc0d140ed982d2b0b3c972672a38b8b0847d3837806f6", kill_on_drop: false }` [INFO] [stderr] Compiling rust-lang-example v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `r2` [INFO] [stdout] --> src/ownership.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | let r2 = &mut s1; [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_r2` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/ownership.rs:62:9 [INFO] [stdout] | [INFO] [stdout] 62 | let mut s1 = String::from("hello"); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/types.rs:9:9 [INFO] [stdout] | [INFO] [stdout] 9 | let mut c:i8 = -10; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/types.rs:24:9 [INFO] [stdout] | [INFO] [stdout] 24 | let mut d:u8 = 255; [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.19s [INFO] [stderr] Executable unittests src/control_flow.rs (/opt/rustwide/target/debug/deps/control_flow-654d0029682f2fa7) [INFO] [stderr] Executable unittests src/functions.rs (/opt/rustwide/target/debug/deps/functions-fae8125437af7b09) [INFO] [stderr] Executable unittests src/ownership.rs (/opt/rustwide/target/debug/deps/ownership-0bf7f3f1a52a0ed6) [INFO] [stderr] Executable unittests src/print.rs (/opt/rustwide/target/debug/deps/print-646a4ae5d209cbf1) [INFO] [stderr] Executable unittests src/strings.rs (/opt/rustwide/target/debug/deps/strings-a22406fb1521089c) [INFO] [stderr] Executable unittests src/types.rs (/opt/rustwide/target/debug/deps/types-c346ee511a1c8825) [INFO] [stderr] Executable unittests src/vars.rs (/opt/rustwide/target/debug/deps/vars-d3e2e180ac242a2a) [INFO] running `Command { std: "docker" "inspect" "3d10fe824c231e40e5dbc0d140ed982d2b0b3c972672a38b8b0847d3837806f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d10fe824c231e40e5dbc0d140ed982d2b0b3c972672a38b8b0847d3837806f6", kill_on_drop: false }` [INFO] [stdout] 3d10fe824c231e40e5dbc0d140ed982d2b0b3c972672a38b8b0847d3837806f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-105/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] 49cea7c66267b34b09f703234cd410fa9fc153e44da9efa3b40cdf78e9848a98 [INFO] running `Command { std: "docker" "start" "-a" "49cea7c66267b34b09f703234cd410fa9fc153e44da9efa3b40cdf78e9848a98", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused variable: `r2` [INFO] [stdout] [INFO] [stderr] --> src/ownership.rs:57:9 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 57 | let r2 = &mut s1; [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_r2` [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] running 0 tests [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] --> src/ownership.rs:62:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 62 | let mut s1 = String::from("hello"); [INFO] [stdout] running 0 tests [INFO] [stderr] | ----^^ [INFO] [stdout] [INFO] [stderr] | | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | help: remove this `mut` [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] running 0 tests [INFO] [stderr] [INFO] [stdout] [INFO] [stderr] warning: `rust-lang-example` (bin "ownership" test) generated 2 warnings [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] [INFO] [stderr] --> src/types.rs:9:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] running 0 tests [INFO] [stderr] 9 | let mut c:i8 = -10; [INFO] [stdout] [INFO] [stderr] | ----^ [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | | [INFO] [stdout] [INFO] [stderr] | help: remove this `mut` [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] running 0 tests [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stdout] [INFO] [stderr] --> src/types.rs:24:9 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] running 0 tests [INFO] [stderr] 24 | let mut d:u8 = 255; [INFO] [stdout] [INFO] [stderr] | ----^ [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | | [INFO] [stdout] [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: `rust-lang-example` (bin "types" test) generated 2 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 4.06s [INFO] [stderr] Running unittests src/control_flow.rs (/opt/rustwide/target/debug/deps/control_flow-654d0029682f2fa7) [INFO] [stderr] Running unittests src/functions.rs (/opt/rustwide/target/debug/deps/functions-fae8125437af7b09) [INFO] [stderr] Running unittests src/ownership.rs (/opt/rustwide/target/debug/deps/ownership-0bf7f3f1a52a0ed6) [INFO] [stderr] Running unittests src/print.rs (/opt/rustwide/target/debug/deps/print-646a4ae5d209cbf1) [INFO] [stderr] Running unittests src/strings.rs (/opt/rustwide/target/debug/deps/strings-a22406fb1521089c) [INFO] [stderr] Running unittests src/types.rs (/opt/rustwide/target/debug/deps/types-c346ee511a1c8825) [INFO] [stderr] Running unittests src/vars.rs (/opt/rustwide/target/debug/deps/vars-d3e2e180ac242a2a) [INFO] running `Command { std: "docker" "inspect" "49cea7c66267b34b09f703234cd410fa9fc153e44da9efa3b40cdf78e9848a98", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "49cea7c66267b34b09f703234cd410fa9fc153e44da9efa3b40cdf78e9848a98", kill_on_drop: false }` [INFO] [stdout] 49cea7c66267b34b09f703234cd410fa9fc153e44da9efa3b40cdf78e9848a98