[INFO] fetching crate gluon_base 0.18.2...
[INFO] checking gluon_base-0.18.2 against master#94b72d6bebbddb5d17860914c4544f37365e988c for pr-122789
[INFO] extracting crate gluon_base 0.18.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate gluon_base 0.18.2 on toolchain 94b72d6bebbddb5d17860914c4544f37365e988c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gluon_base 0.18.2
[INFO] finished tweaking crates.io crate gluon_base 0.18.2
[INFO] tweaked toml for crates.io crate gluon_base 0.18.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94b72d6bebbddb5d17860914c4544f37365e988c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_state v0.4.8
[INFO] [stderr]   Downloaded compiletest_rs v0.7.1
[INFO] [stderr]   Downloaded tester v0.9.1
[INFO] [stderr]   Downloaded gluon_codegen v0.18.2
[INFO] [stderr]   Downloaded serde_derive_state v0.4.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 38ab597cf7eba984451bc56a97a5a6ab658e5ff43c6e0a2eda215b75f4b285eb
[INFO] running `Command { std: "docker" "start" "-a" "38ab597cf7eba984451bc56a97a5a6ab658e5ff43c6e0a2eda215b75f4b285eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "38ab597cf7eba984451bc56a97a5a6ab658e5ff43c6e0a2eda215b75f4b285eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38ab597cf7eba984451bc56a97a5a6ab658e5ff43c6e0a2eda215b75f4b285eb", kill_on_drop: false }`
[INFO] [stdout] 38ab597cf7eba984451bc56a97a5a6ab658e5ff43c6e0a2eda215b75f4b285eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+94b72d6bebbddb5d17860914c4544f37365e988c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ecad56e66a1747a09e125b6cc871a6530b970e371018568309fc900b42d71f6a
[INFO] running `Command { std: "docker" "start" "-a" "ecad56e66a1747a09e125b6cc871a6530b970e371018568309fc900b42d71f6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling ahash v0.7.8
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking typed-arena v2.0.2
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking ordered-float v2.10.1
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking codespan v0.11.1
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]    Compiling gluon_codegen v0.18.2
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.9.3
[INFO] [stderr]     Checking gluon_base v0.18.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]  --> src/error.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Extend, FromIterator};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]  --> /rustc/94b72d6bebbddb5d17860914c4544f37365e988c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Extend` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]   --> src/fixed.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     iter::IntoIterator,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/94b72d6bebbddb5d17860914c4544f37365e988c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `IntoIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Extend` is imported redundantly
[INFO] [stdout]  --> src/error.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::{Extend, FromIterator};
[INFO] [stdout]   |                 ^^^^^^
[INFO] [stdout]  --> /rustc/94b72d6bebbddb5d17860914c4544f37365e988c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Extend` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `IntoIterator` is imported redundantly
[INFO] [stdout]   --> src/fixed.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     iter::IntoIterator,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   --> /rustc/94b72d6bebbddb5d17860914c4544f37365e988c/library/std/src/prelude/mod.rs:115:13
[INFO] [stdout]    |
[INFO] [stdout]    = note: the item `IntoIterator` is already defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/ast.rs:1328:32
[INFO] [stdout]      |
[INFO] [stdout] 1328 |             struct Guard<'tag>(&'tag $crate::ast::InvariantLifetime<'tag>);
[INFO] [stdout]      |                    -----       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |                    |
[INFO] [stdout]      |                    field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1346 |         mk_ast_arena!(arena);
[INFO] [stdout]      |         -------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `mk_ast_arena` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 1328 |             struct Guard<'tag>(());
[INFO] [stdout]      |                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/ast.rs:1328:32
[INFO] [stdout]      |
[INFO] [stdout] 1328 |             struct Guard<'tag>(&'tag $crate::ast::InvariantLifetime<'tag>);
[INFO] [stdout]      |                    -----       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |                    |
[INFO] [stdout]      |                    field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1346 |         mk_ast_arena!(arena);
[INFO] [stdout]      |         -------------------- in this macro invocation
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]      = note: this warning originates in the macro `mk_ast_arena` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 1328 |             struct Guard<'tag>(());
[INFO] [stdout]      |                                ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.10s
[INFO] running `Command { std: "docker" "inspect" "ecad56e66a1747a09e125b6cc871a6530b970e371018568309fc900b42d71f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecad56e66a1747a09e125b6cc871a6530b970e371018568309fc900b42d71f6a", kill_on_drop: false }`
[INFO] [stdout] ecad56e66a1747a09e125b6cc871a6530b970e371018568309fc900b42d71f6a