[INFO] cloning repository https://github.com/livingsilver94/rusty_markov [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/livingsilver94/rusty_markov" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flivingsilver94%2Frusty_markov", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flivingsilver94%2Frusty_markov'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 82bbd0a5a8b2f8ac6266f88571abcb0a915a4043 [INFO] checking livingsilver94/rusty_markov against try#23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 for pr-115950 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flivingsilver94%2Frusty_markov" "/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/livingsilver94/rusty_markov on toolchain 23ffd2897cbb44320ca18dfe4d05dbacb37d55e0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/livingsilver94/rusty_markov [INFO] finished tweaking git repo https://github.com/livingsilver94/rusty_markov [INFO] tweaked toml for git repo https://github.com/livingsilver94/rusty_markov written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/livingsilver94/rusty_markov 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" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cf3d0e5963e9e36915f53d829aee7b422ed0448de73974fc8558da4dfc89b925 [INFO] running `Command { std: "docker" "start" "-a" "cf3d0e5963e9e36915f53d829aee7b422ed0448de73974fc8558da4dfc89b925", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cf3d0e5963e9e36915f53d829aee7b422ed0448de73974fc8558da4dfc89b925", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cf3d0e5963e9e36915f53d829aee7b422ed0448de73974fc8558da4dfc89b925", kill_on_drop: false }` [INFO] [stdout] cf3d0e5963e9e36915f53d829aee7b422ed0448de73974fc8558da4dfc89b925 [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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23ffd2897cbb44320ca18dfe4d05dbacb37d55e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a42603173ac00704a159b70191e47ad565754ae1717f0a91eebd2cd57c30c733 [INFO] running `Command { std: "docker" "start" "-a" "a42603173ac00704a159b70191e47ad565754ae1717f0a91eebd2cd57c30c733", kill_on_drop: false }` [INFO] [stderr] Checking rand_core v0.2.1 [INFO] [stderr] Checking libc v0.2.43 [INFO] [stderr] Checking rand v0.5.5 [INFO] [stderr] Checking markov_chain v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/lib.rs:124:35 [INFO] [stdout] | [INFO] [stdout] 123 | pub fn generate(&self, max: usize) -> impl Iterator { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 124 | self.generate_from_token(&vec![KeyPosition::Beginning; self.order], max) [INFO] [stdout] | --------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^------ [INFO] [stdout] | | | [INFO] [stdout] | | creates a temporary value which is freed while still in use [INFO] [stdout] | argument requires that borrow lasts for `'1` [INFO] [stdout] 125 | } [INFO] [stdout] | - temporary value is freed at the end of this statement [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0716]: temporary value dropped while borrowed [INFO] [stdout] --> src/lib.rs:124:35 [INFO] [stdout] | [INFO] [stdout] 123 | pub fn generate(&self, max: usize) -> impl Iterator { [INFO] [stdout] | - let's call the lifetime of this reference `'1` [INFO] [stdout] 124 | self.generate_from_token(&vec![KeyPosition::Beginning; self.order], max) [INFO] [stdout] | --------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^------ [INFO] [stdout] | | | [INFO] [stdout] | | creates a temporary value which is freed while still in use [INFO] [stdout] | argument requires that borrow lasts for `'1` [INFO] [stdout] 125 | } [INFO] [stdout] | - temporary value is freed at the end of this statement [INFO] [stdout] | [INFO] [stdout] = note: this error originates in the macro `vec` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0716`. [INFO] [stdout] [INFO] [stderr] error: could not compile `markov_chain` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0716`. [INFO] [stdout] [INFO] [stderr] error: could not compile `markov_chain` (lib test) due to 2 previous errors [INFO] running `Command { std: "docker" "inspect" "a42603173ac00704a159b70191e47ad565754ae1717f0a91eebd2cd57c30c733", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a42603173ac00704a159b70191e47ad565754ae1717f0a91eebd2cd57c30c733", kill_on_drop: false }` [INFO] [stdout] a42603173ac00704a159b70191e47ad565754ae1717f0a91eebd2cd57c30c733