[INFO] updating cached repository https://github.com/johnabs/stegr
[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] ed9038006ccd611454ec09bf87f852ef97fff761
[INFO] testing johnabs/stegr against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnabs%2Fstegr" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnabs/stegr on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/johnabs/stegr
[INFO] finished tweaking git repo https://github.com/johnabs/stegr
[INFO] tweaked toml for git repo https://github.com/johnabs/stegr written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/johnabs/stegr already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e0fe0bc43e2f1bbb465fa76de5f3c2397044c949d3dab0ff123f3ced4de2eb8e
[INFO] running `"docker" "start" "-a" "e0fe0bc43e2f1bbb465fa76de5f3c2397044c949d3dab0ff123f3ced4de2eb8e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling base64 v0.2.1
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]    Compiling block-cipher-trait v0.6.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling sha2 v0.8.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling aes-soft v0.3.3
[INFO] [stderr]    Compiling twofish v0.2.0
[INFO] [stderr]    Compiling block-modes v0.3.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling aes v0.3.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rayon v1.3.0
[INFO] [stderr]    Compiling structopt v0.2.18
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling jpeg-decoder v0.1.18
[INFO] [stderr]    Compiling image v0.23.0
[INFO] [stderr]    Compiling hex-literal-impl v0.2.1
[INFO] [stderr]    Compiling hex-literal v0.2.1
[INFO] [stderr]    Compiling stegr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: unknown format trait `u8`
[INFO] [stderr]   --> src/encode.rs:83:29
[INFO] [stderr]    |
[INFO] [stderr] 83 |         outstr = format!("{:u8}",) ;
[INFO] [stderr]    |                             ^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: the only appropriate formatting traits are:
[INFO] [stderr]            - ``, which uses the `Display` trait
[INFO] [stderr]            - `?`, which uses the `Debug` trait
[INFO] [stderr]            - `e`, which uses the `LowerExp` trait
[INFO] [stderr]            - `E`, which uses the `UpperExp` trait
[INFO] [stderr]            - `o`, which uses the `Octal` trait
[INFO] [stderr]            - `p`, which uses the `Pointer` trait
[INFO] [stderr]            - `b`, which uses the `Binary` trait
[INFO] [stderr]            - `x`, which uses the `LowerHex` trait
[INFO] [stderr]            - `X`, which uses the `UpperHex` trait
[INFO] [stderr] 
[INFO] [stderr] error: 1 positional argument in format string, but no arguments were given
[INFO] [stderr]   --> src/encode.rs:83:27
[INFO] [stderr]    |
[INFO] [stderr] 83 |         outstr = format!("{:u8}",) ;
[INFO] [stderr]    |                           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[macro_use] extern crate hex_literal;
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the type `std::string::String` cannot be indexed by `usize`
[INFO] [stderr]   --> src/encode.rs:82:22
[INFO] [stderr]    |
[INFO] [stderr] 82 |         temp = [temp,input[i]].join("");
[INFO] [stderr]    |                      ^^^^^^^^ `std::string::String` cannot be indexed by `usize`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::ops::Index<usize>` is not implemented for `std::string::String`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/encode.rs:82:16
[INFO] [stderr]    |
[INFO] [stderr] 82 |         temp = [temp,input[i]].join("");
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                |
[INFO] [stderr]    |                expected `&str`, found struct `std::string::String`
[INFO] [stderr]    |                help: consider borrowing here: `&[temp,input[i]].join("")`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/encode.rs:83:18
[INFO] [stderr]    |
[INFO] [stderr] 83 |         outstr = format!("{:u8}",) ;
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^^^^ expected `&str`, found struct `std::string::String`
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]   --> src/encode.rs:81:5
[INFO] [stderr]    |
[INFO] [stderr] 78 |   fn bin_str_to_str(input: String) -> String{
[INFO] [stderr]    |                                       ------ expected `std::string::String` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 81 | /     for i in 0..input.chars().count()-1 {
[INFO] [stderr] 82 | |         temp = [temp,input[i]].join("");
[INFO] [stderr] 83 | |         outstr = format!("{:u8}",) ;
[INFO] [stderr] 84 | |     }
[INFO] [stderr]    | |_____^ expected struct `std::string::String`, found `()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 6 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `stegr`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "e0fe0bc43e2f1bbb465fa76de5f3c2397044c949d3dab0ff123f3ced4de2eb8e"`
[INFO] running `"docker" "rm" "-f" "e0fe0bc43e2f1bbb465fa76de5f3c2397044c949d3dab0ff123f3ced4de2eb8e"`
[INFO] [stdout] e0fe0bc43e2f1bbb465fa76de5f3c2397044c949d3dab0ff123f3ced4de2eb8e