[INFO] fetching crate wlambda 0.8.1... [INFO] testing wlambda-0.8.1 against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1 [INFO] extracting crate wlambda 0.8.1 into /workspace/builds/worker-6-tc2/source [INFO] started tweaking crates.io crate wlambda 0.8.1 [INFO] finished tweaking crates.io crate wlambda 0.8.1 [INFO] tweaked toml for crates.io crate wlambda 0.8.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate wlambda 0.8.1 on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate wlambda 0.8.1 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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] c6304751f4fe5bbe5e57c31f780f0726bfd6d642f777a83975fdef18cdeb0af6 [INFO] running `Command { std: "docker" "start" "-a" "c6304751f4fe5bbe5e57c31f780f0726bfd6d642f777a83975fdef18cdeb0af6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c6304751f4fe5bbe5e57c31f780f0726bfd6d642f777a83975fdef18cdeb0af6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6304751f4fe5bbe5e57c31f780f0726bfd6d642f777a83975fdef18cdeb0af6", kill_on_drop: false }` [INFO] [stdout] c6304751f4fe5bbe5e57c31f780f0726bfd6d642f777a83975fdef18cdeb0af6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 202bedc4c455b91b1b567a2d2ebf700033bce5c1de243eeb7ad1378c7aa14439 [INFO] running `Command { std: "docker" "start" "-a" "202bedc4c455b91b1b567a2d2ebf700033bce5c1de243eeb7ad1378c7aa14439", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling libc v0.2.119 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling serde_derive v1.0.136 [INFO] [stderr] Compiling serde v1.0.136 [INFO] [stderr] Compiling nix v0.18.0 [INFO] [stderr] Compiling serde_json v1.0.79 [INFO] [stderr] Compiling byteorder v1.4.3 [INFO] [stderr] Compiling unicode-segmentation v1.9.0 [INFO] [stderr] Compiling utf8parse v0.2.0 [INFO] [stderr] Compiling quick-xml v0.20.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling time v0.1.43 [INFO] [stderr] Compiling socket2 v0.3.19 [INFO] [stderr] Compiling dirs-next v1.0.2 [INFO] [stderr] Compiling rmp v0.8.10 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling rustyline v6.3.0 [INFO] [stderr] Compiling rmp-serde v0.14.4 [INFO] [stderr] Compiling wlambda v0.8.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/vval.rs:975:25 [INFO] [stdout] | [INFO] [stdout] 975 | ("raccm".to_string()), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 975 - ("raccm".to_string()), [INFO] [stdout] 975 + "raccm".to_string(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/vval.rs:977:25 [INFO] [stdout] | [INFO] [stdout] 977 | ("rslf".to_string()), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 977 - ("rslf".to_string()), [INFO] [stdout] 977 + "rslf".to_string(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/vval.rs:979:25 [INFO] [stdout] | [INFO] [stdout] 979 | ("ritr".to_string()), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 979 - ("ritr".to_string()), [INFO] [stdout] 979 + "ritr".to_string(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/vval.rs:983:25 [INFO] [stdout] | [INFO] [stdout] 983 | ("nul".to_string()), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 983 - ("nul".to_string()), [INFO] [stdout] 983 + "nul".to_string(), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around match arm expression [INFO] [stdout] --> src/vval.rs:5399:33 [INFO] [stdout] | [INFO] [stdout] 5399 | VVal::Flt(f) => (*f as i64), [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 5399 - VVal::Flt(f) => (*f as i64), [INFO] [stdout] 5399 + VVal::Flt(f) => *f as i64, [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0597]: `l` does not live long enough [INFO] [stdout] --> src/vval.rs:4086:23 [INFO] [stdout] | [INFO] [stdout] 4085 | if let Some(l) = r.upgrade() { [INFO] [stdout] | - binding `l` declared here [INFO] [stdout] 4086 | &*l.borrow() as *const VVal as i64 [INFO] [stdout] | ^--------- [INFO] [stdout] | | [INFO] [stdout] | borrowed value does not live long enough [INFO] [stdout] | a temporary with access to the borrow is created here ... [INFO] [stdout] 4087 | } else { [INFO] [stdout] | - `l` dropped here while still borrowed [INFO] [stdout] ... [INFO] [stdout] 4093 | } [INFO] [stdout] | - ... and the borrow might be used here, when that temporary is dropped and runs the destructor for type `Ref<'_, vval::VVal>` [INFO] [stdout] | [INFO] [stdout] = note: the temporary is part of an expression at the end of a block; [INFO] [stdout] consider forcing this temporary to be dropped sooner, before the block's local variables are dropped [INFO] [stdout] help: for example, you could save the expression's value in a new local variable `x` and then make `x` be the expression at the end of the block [INFO] [stdout] | [INFO] [stdout] 4086 | let x = &*l.borrow() as *const VVal as i64; x [INFO] [stdout] | +++++++ +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0597`. [INFO] [stdout] [INFO] [stderr] error: could not compile `wlambda` (lib) due to 1 previous error; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "202bedc4c455b91b1b567a2d2ebf700033bce5c1de243eeb7ad1378c7aa14439", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "202bedc4c455b91b1b567a2d2ebf700033bce5c1de243eeb7ad1378c7aa14439", kill_on_drop: false }` [INFO] [stdout] 202bedc4c455b91b1b567a2d2ebf700033bce5c1de243eeb7ad1378c7aa14439