[INFO] cloning repository https://github.com/jgall/rust_shell
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jgall/rust_shell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgall%2Frust_shell"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgall%2Frust_shell'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 78a21116d5a39faef58eb67029a8620af52d149e
[INFO] testing jgall/rust_shell against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgall%2Frust_shell" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jgall/rust_shell 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/jgall/rust_shell
[INFO] finished tweaking git repo https://github.com/jgall/rust_shell
[INFO] tweaked toml for git repo https://github.com/jgall/rust_shell written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/jgall/rust_shell 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] f3bae2b907ec133bb8e1eb66e247fdc997dd6b0a99e6cf88ec60289d12b72c76
[INFO] running `"docker" "start" "-a" "f3bae2b907ec133bb8e1eb66e247fdc997dd6b0a99e6cf88ec60289d12b72c76"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling simple-error v0.1.12
[INFO] [stderr]    Compiling rust_shell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             ["cd", args..] => {
[INFO] [stderr]    |                    ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: consider importing this function
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:38:31
[INFO] [stderr]    |
[INFO] [stderr] 38 |                 let new_dir = args.into_iter().peekable().peek().map_or("/", |x| *x);
[INFO] [stderr]    |                               ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: consider importing this function
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                       ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: consider importing this function
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find value `args` in this scope
[INFO] [stderr]   --> src/main.rs:46:61
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                                                             ^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: consider importing this function
[INFO] [stderr]    |
[INFO] [stderr] 3  | use std::env::args;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(slice_patterns)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: half-open range patterns are unstable
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             ["cd", args..] => {
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: half-open range patterns are unstable
[INFO] [stderr]   --> src/main.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #67264 <https://github.com/rust-lang/rust/issues/67264> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/main.rs:37:20
[INFO] [stderr]    |
[INFO] [stderr] 37 |             ["cd", args..] => {
[INFO] [stderr]    |                    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: exclusive range pattern syntax is experimental
[INFO] [stderr]   --> src/main.rs:46:23
[INFO] [stderr]    |
[INFO] [stderr] 46 |             [command, args..] => Command::new(command).args(args).spawn()?.wait(),
[INFO] [stderr]    |                       ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: see issue #37854 <https://github.com/rust-lang/rust/issues/37854> for more information
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:21:28
[INFO] [stderr]    |
[INFO] [stderr] 21 | fn run() -> Result<(), Box<Error>> {
[INFO] [stderr]    |                            ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0425, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0425`.
[INFO] [stderr] error: could not compile `rust_shell`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f3bae2b907ec133bb8e1eb66e247fdc997dd6b0a99e6cf88ec60289d12b72c76"`
[INFO] running `"docker" "rm" "-f" "f3bae2b907ec133bb8e1eb66e247fdc997dd6b0a99e6cf88ec60289d12b72c76"`
[INFO] [stdout] f3bae2b907ec133bb8e1eb66e247fdc997dd6b0a99e6cf88ec60289d12b72c76