[INFO] cloning repository https://github.com/zhangyemengren/learn_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhangyemengren/learn_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyemengren%2Flearn_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyemengren%2Flearn_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 49b832e970f0e7c4efde3593d29eb372f13cee24 [INFO] checking zhangyemengren/learn_rust against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyemengren%2Flearn_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zhangyemengren/learn_rust on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zhangyemengren/learn_rust [INFO] finished tweaking git repo https://github.com/zhangyemengren/learn_rust [INFO] tweaked toml for git repo https://github.com/zhangyemengren/learn_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/zhangyemengren/learn_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded memchr v2.6.2 [INFO] [stderr] Downloaded prettyplease v0.2.12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9200675630b171069ec030a03bc4a86e28693e68f94c1565d0ad5a936cba4eee [INFO] running `Command { std: "docker" "start" "-a" "9200675630b171069ec030a03bc4a86e28693e68f94c1565d0ad5a936cba4eee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9200675630b171069ec030a03bc4a86e28693e68f94c1565d0ad5a936cba4eee", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9200675630b171069ec030a03bc4a86e28693e68f94c1565d0ad5a936cba4eee", kill_on_drop: false }` [INFO] [stdout] 9200675630b171069ec030a03bc4a86e28693e68f94c1565d0ad5a936cba4eee [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 133b0f1c981a4f96b4fc8816fdcafc84d33d9c3bd6a3a97b67af3e566e2169fe [INFO] running `Command { std: "docker" "start" "-a" "133b0f1c981a4f96b4fc8816fdcafc84d33d9c3bd6a3a97b67af3e566e2169fe", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling prettyplease v0.2.12 [INFO] [stderr] Compiling regex-syntax v0.7.5 [INFO] [stderr] Compiling memchr v2.6.2 [INFO] [stderr] Compiling clang-sys v1.6.1 [INFO] [stderr] Compiling bindgen v0.66.1 [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling bitflags v2.4.0 [INFO] [stderr] Checking too_many_lists v0.1.0 (/opt/rustwide/workdir/too_many_lists) [INFO] [stderr] Checking rust_by_example v0.1.0 (/opt/rustwide/workdir/rust_by_example) [INFO] [stdout] warning: path statement with no effect [INFO] [stdout] --> rust_by_example/examples/expression/expression.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | x; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(path_statements)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> rust_by_example/examples/expression/expression.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | x + 1; [INFO] [stdout] | ^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 11 | let _ = x + 1; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused arithmetic operation that must be used [INFO] [stdout] --> rust_by_example/examples/expression/expression.rs:28:9 [INFO] [stdout] | [INFO] [stdout] 28 | 2 * x; [INFO] [stdout] | ^^^^^ the arithmetic operation produces a value [INFO] [stdout] | [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 28 | let _ = 2 * x; [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `y` [INFO] [stdout] --> rust_by_example/examples/scope/lifetime_explicit.rs:23:9 [INFO] [stdout] | [INFO] [stdout] 23 | let y: &'a i32 = &_x; [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_y` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0597]: `_x` does not live long enough [INFO] [stdout] --> rust_by_example/examples/scope/lifetime_explicit.rs:23:22 [INFO] [stdout] | [INFO] [stdout] 19 | fn failed_borrow<'a>() { [INFO] [stdout] | -- lifetime `'a` defined here [INFO] [stdout] 20 | let _x = 12; [INFO] [stdout] | -- binding `_x` declared here [INFO] [stdout] ... [INFO] [stdout] 23 | let y: &'a i32 = &_x; [INFO] [stdout] | ------- ^^^ borrowed value does not live long enough [INFO] [stdout] | | [INFO] [stdout] | type annotation requires that `_x` is borrowed for `'a` [INFO] [stdout] ... [INFO] [stdout] 26 | } [INFO] [stdout] | - `_x` dropped here while still borrowed [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0597`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_by_example` (example "scope_lifetime_explicit") due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "133b0f1c981a4f96b4fc8816fdcafc84d33d9c3bd6a3a97b67af3e566e2169fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "133b0f1c981a4f96b4fc8816fdcafc84d33d9c3bd6a3a97b67af3e566e2169fe", kill_on_drop: false }` [INFO] [stdout] 133b0f1c981a4f96b4fc8816fdcafc84d33d9c3bd6a3a97b67af3e566e2169fe [INFO] checking zhangyemengren/learn_rust against try#36dbcaee1a55543dfc181be52a69d99ff46ff62f for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyemengren%2Flearn_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/zhangyemengren/learn_rust on toolchain 36dbcaee1a55543dfc181be52a69d99ff46ff62f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/zhangyemengren/learn_rust [INFO] finished tweaking git repo https://github.com/zhangyemengren/learn_rust [INFO] tweaked toml for git repo https://github.com/zhangyemengren/learn_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/zhangyemengren/learn_rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] afe001617eae6e0a2e30849248172786f8623a93d820ae6721f78798438dad77 [INFO] running `Command { std: "docker" "start" "-a" "afe001617eae6e0a2e30849248172786f8623a93d820ae6721f78798438dad77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "afe001617eae6e0a2e30849248172786f8623a93d820ae6721f78798438dad77", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "afe001617eae6e0a2e30849248172786f8623a93d820ae6721f78798438dad77", kill_on_drop: false }` [INFO] [stdout] afe001617eae6e0a2e30849248172786f8623a93d820ae6721f78798438dad77 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+36dbcaee1a55543dfc181be52a69d99ff46ff62f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9890ffc2018892f500ad5dacf272b7e3c20b0b31d426abdcb71667035266b3a7 [INFO] running `Command { std: "docker" "start" "-a" "9890ffc2018892f500ad5dacf272b7e3c20b0b31d426abdcb71667035266b3a7", kill_on_drop: false }` [INFO] [stderr] Copying to /tmp/fixit [INFO] [stderr] no edition found in manifest, probably 2015, skipping [INFO] running `Command { std: "docker" "inspect" "9890ffc2018892f500ad5dacf272b7e3c20b0b31d426abdcb71667035266b3a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9890ffc2018892f500ad5dacf272b7e3c20b0b31d426abdcb71667035266b3a7", kill_on_drop: false }` [INFO] [stdout] 9890ffc2018892f500ad5dacf272b7e3c20b0b31d426abdcb71667035266b3a7