[INFO] fetching crate proc-quote 0.4.0...
[INFO] checking proc-quote-0.4.0 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate proc-quote 0.4.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate proc-quote 0.4.0
[INFO] finished tweaking crates.io crate proc-quote 0.4.0
[INFO] tweaked toml for crates.io crate proc-quote 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate proc-quote 0.4.0 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] [stderr]       Adding syn v1.0.109 (available: v2.0.117)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ce7738f854d103c879a8b5269a50c790efeea36c4a9b5741f4d7a2bdaa48944
[INFO] running `Command { std: "docker" "start" "-a" "8ce7738f854d103c879a8b5269a50c790efeea36c4a9b5741f4d7a2bdaa48944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ce7738f854d103c879a8b5269a50c790efeea36c4a9b5741f4d7a2bdaa48944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ce7738f854d103c879a8b5269a50c790efeea36c4a9b5741f4d7a2bdaa48944", kill_on_drop: false }`
[INFO] [stdout] 8ce7738f854d103c879a8b5269a50c790efeea36c4a9b5741f4d7a2bdaa48944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74fec62da21f436a28e10bd0eba1e7e50e0daefb6c41bccb1fc226802b7c26bd
[INFO] running `Command { std: "docker" "start" "-a" "74fec62da21f436a28e10bd0eba1e7e50e0daefb6c41bccb1fc226802b7c26bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling proc-macro-hack v0.5.20+deprecated
[INFO] [stderr]     Checking unicode-ident v1.0.24
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling proc-quote-impl v0.3.2
[INFO] [stderr]     Checking proc-quote v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Repeat` is never used
[INFO] [stdout]    --> tests/repetition.rs:140:11
[INFO] [stdout]     |
[INFO] [stdout] 140 |     trait Repeat {}
[INFO] [stdout]     |           ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to `<[T; N] as IntoIterator>::into_iter` in Rust 2021
[INFO] [stdout]   --> tests/repetition.rs:78:23
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let c = [5, 6, 7].into_iter().map(|_| X);
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]    = note: `#[warn(array_into_iter)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]    |
[INFO] [stdout] 78 -     let c = [5, 6, 7].into_iter().map(|_| X);
[INFO] [stdout] 78 +     let c = [5, 6, 7].iter().map(|_| X);
[INFO] [stdout]    |
[INFO] [stdout] help: or use `IntoIterator::into_iter(..)` instead of `.into_iter()` to explicitly iterate by value
[INFO] [stdout]    |
[INFO] [stdout] 78 -     let c = [5, 6, 7].into_iter().map(|_| X);
[INFO] [stdout] 78 +     let c = IntoIterator::into_iter([5, 6, 7]).map(|_| X);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `integer128`
[INFO] [stdout]   --> tests/types.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[cfg(integer128)]
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: expected names are: `docsrs`, `feature`, and `test` and 32 more
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(integer128)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(integer128)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]    = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "74fec62da21f436a28e10bd0eba1e7e50e0daefb6c41bccb1fc226802b7c26bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74fec62da21f436a28e10bd0eba1e7e50e0daefb6c41bccb1fc226802b7c26bd", kill_on_drop: false }`
[INFO] [stdout] 74fec62da21f436a28e10bd0eba1e7e50e0daefb6c41bccb1fc226802b7c26bd
