[INFO] cloning repository https://github.com/Amphibological/chi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Amphibological/chi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmphibological%2Fchi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmphibological%2Fchi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 641cc68c359957ff40526366b78bdfc0104b7a5f
[INFO] checking Amphibological/chi against master#a26e97be8826d408309fffbd8168362365719f50 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAmphibological%2Fchi" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Amphibological/chi on toolchain a26e97be8826d408309fffbd8168362365719f50
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Amphibological/chi
[INFO] finished tweaking git repo https://github.com/Amphibological/chi
[INFO] tweaked toml for git repo https://github.com/Amphibological/chi written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Amphibological/chi 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" "+a26e97be8826d408309fffbd8168362365719f50" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.3.3
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded llvm-sys v100.1.0
[INFO] [stderr]   Downloaded aho-corasick v0.7.13
[INFO] [stderr]   Downloaded libc v0.2.74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9eac0ed8ed6f7af3607d77964f7cff31b0758258a4489e47b92f184a3964c3ab
[INFO] running `Command { std: "docker" "start" "-a" "9eac0ed8ed6f7af3607d77964f7cff31b0758258a4489e47b92f184a3964c3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9eac0ed8ed6f7af3607d77964f7cff31b0758258a4489e47b92f184a3964c3ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eac0ed8ed6f7af3607d77964f7cff31b0758258a4489e47b92f184a3964c3ab", kill_on_drop: false }`
[INFO] [stdout] 9eac0ed8ed6f7af3607d77964f7cff31b0758258a4489e47b92f184a3964c3ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+a26e97be8826d408309fffbd8168362365719f50" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6b6246fa8c1ea6201d6d595164b6b30942cfa3111159c20ec222939a1ca9ad1
[INFO] running `Command { std: "docker" "start" "-a" "a6b6246fa8c1ea6201d6d595164b6b30942cfa3111159c20ec222939a1ca9ad1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling llvm-sys v100.1.0
[INFO] [stderr]     Checking elgin v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `typ`, `msg`, `pos`, and `len` are never read
[INFO] [stdout]   --> src/errors.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 34 |     typ: ErrorType,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 35 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     pos: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 37 |     len: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/astgen.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     UseStatement {
[INFO] [stdout]    |     ------------ field in this variant
[INFO] [stdout] 80 |         path: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/astgen.rs:525:27
[INFO] [stdout]     |
[INFO] [stdout] 525 |         o => unreachable!(o),
[INFO] [stdout]     |                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `unreachable!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 525 |         o => unreachable!("{}", o),
[INFO] [stdout]     |                           +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<i8>` will be dropped
[INFO] [stdout]    --> src/llvm.rs:650:18
[INFO] [stdout]     |
[INFO] [stdout] 645 |               let mut error_msg: *mut i8 = ""
[INFO] [stdout]     |  __________________________________________-
[INFO] [stdout] 646 | |                 .as_bytes()
[INFO] [stdout] 647 | |                 .iter()
[INFO] [stdout] 648 | |                 .map(|b| *b as i8)
[INFO] [stdout] 649 | |                 .collect::<Vec<_>>()
[INFO] [stdout]     | |____________________________________- this `Vec<i8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout] 650 |                   .as_mut_ptr();
[INFO] [stdout]     |                    ^^^^^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_mut_ptr` the `Vec<i8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: you must make sure that the variable you bind the `Vec<i8>` to lives at least as long as the pointer returned by the call to `as_mut_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `Vec<i8>` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `typ`, `msg`, `pos`, and `len` are never read
[INFO] [stdout]   --> src/errors.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Error {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 34 |     typ: ErrorType,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 35 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 36 |     pos: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 37 |     len: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Error` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `path` is never read
[INFO] [stdout]   --> src/astgen.rs:80:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     UseStatement {
[INFO] [stdout]    |     ------------ field in this variant
[INFO] [stdout] 80 |         path: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Node` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/astgen.rs:525:27
[INFO] [stdout]     |
[INFO] [stdout] 525 |         o => unreachable!(o),
[INFO] [stdout]     |                           ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `unreachable!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: add a "{}" format string to `Display` the message
[INFO] [stdout]     |
[INFO] [stdout] 525 |         o => unreachable!("{}", o),
[INFO] [stdout]     |                           +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: a dangling pointer will be produced because the temporary `Vec<i8>` will be dropped
[INFO] [stdout]    --> src/llvm.rs:650:18
[INFO] [stdout]     |
[INFO] [stdout] 645 |               let mut error_msg: *mut i8 = ""
[INFO] [stdout]     |  __________________________________________-
[INFO] [stdout] 646 | |                 .as_bytes()
[INFO] [stdout] 647 | |                 .iter()
[INFO] [stdout] 648 | |                 .map(|b| *b as i8)
[INFO] [stdout] 649 | |                 .collect::<Vec<_>>()
[INFO] [stdout]     | |____________________________________- this `Vec<i8>` is deallocated at the end of the statement, bind it to a variable to extend its lifetime
[INFO] [stdout] 650 |                   .as_mut_ptr();
[INFO] [stdout]     |                    ^^^^^^^^^^ this pointer will immediately be invalid
[INFO] [stdout]     |
[INFO] [stdout]     = note: pointers do not have a lifetime; when calling `as_mut_ptr` the `Vec<i8>` will be deallocated at the end of the statement because nothing is referencing it as far as the type system is concerned
[INFO] [stdout]     = help: you must make sure that the variable you bind the `Vec<i8>` to lives at least as long as the pointer returned by the call to `as_mut_ptr`
[INFO] [stdout]     = help: in particular, if this pointer is returned from the current function, binding the `Vec<i8>` inside the function will not suffice
[INFO] [stdout]     = help: for more information, see <https://doc.rust-lang.org/reference/destructors.html>
[INFO] [stdout]     = note: `#[warn(dangling_pointers_from_temporaries)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.61s
[INFO] running `Command { std: "docker" "inspect" "a6b6246fa8c1ea6201d6d595164b6b30942cfa3111159c20ec222939a1ca9ad1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6b6246fa8c1ea6201d6d595164b6b30942cfa3111159c20ec222939a1ca9ad1", kill_on_drop: false }`
[INFO] [stdout] a6b6246fa8c1ea6201d6d595164b6b30942cfa3111159c20ec222939a1ca9ad1
