[INFO] updating cached repository https://github.com/porglezomp/bf-arm
[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] 925f274188a46616d4e4351a3b043d93329b6800
[INFO] checking porglezomp/bf-arm against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fporglezomp%2Fbf-arm" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/porglezomp/bf-arm on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/porglezomp/bf-arm
[INFO] finished tweaking git repo https://github.com/porglezomp/bf-arm
[INFO] tweaked toml for git repo https://github.com/porglezomp/bf-arm written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/porglezomp/bf-arm already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "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] c2b8036ea0a0a0fd68e626f133b007a26e7fb78b54b833b2ccfae81d556f6334
[INFO] running `"docker" "start" "-a" "c2b8036ea0a0a0fd68e626f133b007a26e7fb78b54b833b2ccfae81d556f6334"`
[INFO] [stderr]     Checking compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let f = try!(File::open(fname));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:160:20
[INFO] [stderr]     |
[INFO] [stderr] 160 |     let mut text = try!(read(fname));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, BufReader};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:128:48
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn read(fname: &String) -> std::io::Result<Box<Iterator<Item=char>>> {
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |     let f = try!(File::open(fname));
[INFO] [stderr]     |             ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:160:20
[INFO] [stderr]     |
[INFO] [stderr] 160 |     let mut text = try!(read(fname));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]  --> src/main.rs:8:15
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::io::{Read, BufReader};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:128:48
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn read(fname: &String) -> std::io::Result<Box<Iterator<Item=char>>> {
[INFO] [stderr]     |                                                ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterator<Item=char>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no method named `chars` found for struct `std::io::BufReader<std::fs::File>` in the current scope
[INFO] [stderr]    --> src/main.rs:130:35
[INFO] [stderr]     |
[INFO] [stderr] 130 |     let chars = BufReader::new(f).chars();
[INFO] [stderr]     |                                   ^^^^^ method not found in `std::io::BufReader<std::fs::File>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `compiler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0599]: no method named `chars` found for struct `std::io::BufReader<std::fs::File>` in the current scope
[INFO] [stderr]    --> src/main.rs:130:35
[INFO] [stderr]     |
[INFO] [stderr] 130 |     let chars = BufReader::new(f).chars();
[INFO] [stderr]     |                                   ^^^^^ method not found in `std::io::BufReader<std::fs::File>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `compiler`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c2b8036ea0a0a0fd68e626f133b007a26e7fb78b54b833b2ccfae81d556f6334"`
[INFO] running `"docker" "rm" "-f" "c2b8036ea0a0a0fd68e626f133b007a26e7fb78b54b833b2ccfae81d556f6334"`
[INFO] [stdout] c2b8036ea0a0a0fd68e626f133b007a26e7fb78b54b833b2ccfae81d556f6334
