[INFO] cloning repository https://github.com/apiel/v8io
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/apiel/v8io" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapiel%2Fv8io", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapiel%2Fv8io'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c16ea3ef0809f12b68a65ba64fc6c5b36a8f129
[INFO] checking apiel/v8io against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fapiel%2Fv8io" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/apiel/v8io
[INFO] finished tweaking git repo https://github.com/apiel/v8io
[INFO] tweaked toml for git repo https://github.com/apiel/v8io written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/apiel/v8io on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/apiel/v8io 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "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-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cf5ad495b2977f3a661b6ec8023bd4138bf40e79b1cfae956a7611aed7c8c22
[INFO] running `Command { std: "docker" "start" "-a" "3cf5ad495b2977f3a661b6ec8023bd4138bf40e79b1cfae956a7611aed7c8c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cf5ad495b2977f3a661b6ec8023bd4138bf40e79b1cfae956a7611aed7c8c22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf5ad495b2977f3a661b6ec8023bd4138bf40e79b1cfae956a7611aed7c8c22", kill_on_drop: false }`
[INFO] [stdout] 3cf5ad495b2977f3a661b6ec8023bd4138bf40e79b1cfae956a7611aed7c8c22
[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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4eded45bcea5ac812935b69fa9f7143b75e60053ac770a613dd62a1e1097608
[INFO] running `Command { std: "docker" "start" "-a" "c4eded45bcea5ac812935b69fa9f7143b75e60053ac770a613dd62a1e1097608", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling cargo_gn v0.0.15
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling thiserror v1.0.19
[INFO] [stderr]    Compiling which v4.0.0
[INFO] [stderr]    Compiling rusty_v8 v0.5.1
[INFO] [stderr]     Checking v8io v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> core_functions/mod.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout]  9 |     scope: &'sc mut impl v8::ToLocal<'sc>,
[INFO] [stdout]    |             --- the lifetime is named here
[INFO] [stdout] 10 | ) -> (
[INFO] [stdout] 11 |     v8::Local<'_, v8::ObjectTemplate>,
[INFO] [stdout]    |               ^^ the same lifetime is elided here
[INFO] [stdout] 12 |     &'sc mut impl v8::ToLocal<'sc>,
[INFO] [stdout]    |      ---                      --- the same lifetime is named here
[INFO] [stdout]    |      |
[INFO] [stdout]    |      the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'sc`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     v8::Local<'_, v8::ObjectTemplate>,
[INFO] [stdout] 11 +     v8::Local<'sc, v8::ObjectTemplate>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> modules/compile.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let code = std::fs::read_to_string(file.clone()).expect(&err_msg);
[INFO] [stdout]    |                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> core_functions/mod.rs:11:15
[INFO] [stdout]    |
[INFO] [stdout]  9 |     scope: &'sc mut impl v8::ToLocal<'sc>,
[INFO] [stdout]    |             --- the lifetime is named here
[INFO] [stdout] 10 | ) -> (
[INFO] [stdout] 11 |     v8::Local<'_, v8::ObjectTemplate>,
[INFO] [stdout]    |               ^^ the same lifetime is elided here
[INFO] [stdout] 12 |     &'sc mut impl v8::ToLocal<'sc>,
[INFO] [stdout]    |      ---                      --- the same lifetime is named here
[INFO] [stdout]    |      |
[INFO] [stdout]    |      the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'sc`
[INFO] [stdout]    |
[INFO] [stdout] 11 -     v8::Local<'_, v8::ObjectTemplate>,
[INFO] [stdout] 11 +     v8::Local<'sc, v8::ObjectTemplate>,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> modules/compile.rs:11:44
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let code = std::fs::read_to_string(file.clone()).expect(&err_msg);
[INFO] [stdout]    |                                            ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.31s
[INFO] running `Command { std: "docker" "inspect" "c4eded45bcea5ac812935b69fa9f7143b75e60053ac770a613dd62a1e1097608", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4eded45bcea5ac812935b69fa9f7143b75e60053ac770a613dd62a1e1097608", kill_on_drop: false }`
[INFO] [stdout] c4eded45bcea5ac812935b69fa9f7143b75e60053ac770a613dd62a1e1097608