[INFO] updating cached repository https://github.com/simonhdickson/rcc
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f922176836ce4f549f62f26863002d42de06670b
[INFO] checking simonhdickson/rcc against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimonhdickson%2Frcc" "/workspace/builds/worker-9/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simonhdickson/rcc on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/simonhdickson/rcc
[INFO] finished tweaking git repo https://github.com/simonhdickson/rcc
[INFO] tweaked toml for git repo https://github.com/simonhdickson/rcc written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/simonhdickson/rcc already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 777f1e4995fc267b55512028e9513cea1c85d537b21d2c4eee4cfbee34abeb94
[INFO] running `"docker" "start" "-a" "777f1e4995fc267b55512028e9513cea1c85d537b21d2c4eee4cfbee34abeb94"`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]     Checking rustc-demangle v0.1.8
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.23
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking rcc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn parse_program(mut tokens: &mut Iterator<Item = Token>) -> Result<Program, Error> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn parse_function(tokens: &mut Iterator<Item = Token>) -> Result<Function, Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn parse_statement<'a>(tokens: &mut Iterator<Item = Token>) -> Result<Statement, Error> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:93:38
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn parse_expression<'a>(tokens: &mut Iterator<Item = Token>) -> Result<Expression, Error> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:41:35
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn parse_program(mut tokens: &mut Iterator<Item = Token>) -> Result<Program, Error> {
[INFO] [stderr]    |                                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:49:32
[INFO] [stderr]    |
[INFO] [stderr] 49 | fn parse_function(tokens: &mut Iterator<Item = Token>) -> Result<Function, Error> {
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:78:37
[INFO] [stderr]    |
[INFO] [stderr] 78 | fn parse_statement<'a>(tokens: &mut Iterator<Item = Token>) -> Result<Statement, Error> {
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ast.rs:93:38
[INFO] [stderr]    |
[INFO] [stderr] 93 | fn parse_expression<'a>(tokens: &mut Iterator<Item = Token>) -> Result<Expression, Error> {
[INFO] [stderr]    |                                      ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item = Token>`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.91s
[INFO] running `"docker" "inspect" "777f1e4995fc267b55512028e9513cea1c85d537b21d2c4eee4cfbee34abeb94"`
[INFO] running `"docker" "rm" "-f" "777f1e4995fc267b55512028e9513cea1c85d537b21d2c4eee4cfbee34abeb94"`
[INFO] [stdout] 777f1e4995fc267b55512028e9513cea1c85d537b21d2c4eee4cfbee34abeb94