[INFO] cloning repository https://github.com/shiroyasha/rust_grep
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shiroyasha/rust_grep" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiroyasha%2Frust_grep", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiroyasha%2Frust_grep'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2eae909e9d1ec6efc28974029da892736592beb5
[INFO] checking shiroyasha/rust_grep against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshiroyasha%2Frust_grep" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shiroyasha/rust_grep on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shiroyasha/rust_grep
[INFO] finished tweaking git repo https://github.com/shiroyasha/rust_grep
[INFO] tweaked toml for git repo https://github.com/shiroyasha/rust_grep written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/shiroyasha/rust_grep already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d8ccb251d0d38e576e65591665a5e30a8d54702cb34294b7063806a2921503e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2d8ccb251d0d38e576e65591665a5e30a8d54702cb34294b7063806a2921503e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d8ccb251d0d38e576e65591665a5e30a8d54702cb34294b7063806a2921503e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d8ccb251d0d38e576e65591665a5e30a8d54702cb34294b7063806a2921503e", kill_on_drop: false }`
[INFO] [stdout] 2d8ccb251d0d38e576e65591665a5e30a8d54702cb34294b7063806a2921503e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 89d7abcc53e6a19947174af324703da008697b364bfb072e3fa79227e6fa3f30
[INFO] running `Command { std: "docker" "start" "-a" "89d7abcc53e6a19947174af324703da008697b364bfb072e3fa79227e6fa3f30", kill_on_drop: false }`
[INFO] [stderr]     Checking rg v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `found`
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             println!("{}", path.display())
[INFO] [stdout]    |                                           - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 15 |             found = true
[INFO] [stdout]    |             ^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:25:31
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut number_of_files = 0u;
[INFO] [stdout]    |                               ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for _ in range(0u, number_of_files) {
[INFO] [stdout]    |                    ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::comm`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::comm;
[INFO] [stdout]   |     ^^^^^^^^^ no `comm` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::File`, `std::io::BufferedReader`, `std::io::fs`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{File, BufferedReader, fs};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^^^^^^  ^^ no `fs` in `io`
[INFO] [stdout]   |               |     |
[INFO] [stdout]   |               |     no `BufferedReader` in `io`
[INFO] [stdout]   |               no `File` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::fs`
[INFO] [stdout]  --> src/main.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::fs::PathExtensions;
[INFO] [stdout]   |              ^^ could not find `fs` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `found`
[INFO] [stdout]   --> src/main.rs:15:13
[INFO] [stdout]    |
[INFO] [stdout] 14 |             println!("{}", path.display())
[INFO] [stdout]    |                                           - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 15 |             found = true
[INFO] [stdout]    |             ^^^^^ unexpected token
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:25:31
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut number_of_files = 0u;
[INFO] [stdout]    |                               ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid suffix `u` for number literal
[INFO] [stdout]   --> src/main.rs:45:20
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for _ in range(0u, number_of_files) {
[INFO] [stdout]    |                    ^^ invalid suffix `u`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `fs` in `io`
[INFO] [stdout]   --> src/main.rs:59:32
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let found = match std::io::fs::walk_dir(&Path::new(".")) {
[INFO] [stdout]    |                                ^^ could not find `fs` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Path` in this scope
[INFO] [stdout]  --> src/main.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn search_in_file(text_to_find: &str, path: Path) -> bool {
[INFO] [stdout]   |                                             ^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stdout]   --> src/main.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |       let (tx, rx): (Sender<bool>, Receiver<bool>) = comm::channel();
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let (tx, rx): (Send<bool>, Receiver<bool>) = comm::channel();
[INFO] [stdout]    |                    ^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in this scope
[INFO] [stdout]   --> src/main.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let (tx, rx): (Sender<bool>, Receiver<bool>) = comm::channel();
[INFO] [stdout]    |                                  ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::ops::Receiver;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::mpsc::Receiver;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in this scope
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         spawn(move || {
[INFO] [stdout]    |         ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::thread::spawn;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]   --> src/main.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let args = os::args();
[INFO] [stdout]    |                            ^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::env::args;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:45:14
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for _ in range(0u, number_of_files) {
[INFO] [stdout]    |              ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IoError` in module `std::io`
[INFO] [stdout]   --> src/main.rs:54:28
[INFO] [stdout]    |
[INFO] [stdout] 54 |   fn log_error(why: std::io::IoError) {
[INFO] [stdout]    |                              ^^^^^^^ help: a struct with a similar name exists: `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/main.rs:59:46
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let found = match std::io::fs::walk_dir(&Path::new(".")) {
[INFO] [stdout]    |                                              ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `set_exit_status` in module `std::os`
[INFO] [stdout]   --> src/main.rs:64:14
[INFO] [stdout]    |
[INFO] [stdout] 64 |     std::os::set_exit_status(if found { 0 } else { 1 })
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ not found in `std::os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::comm`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::comm;
[INFO] [stdout]   |     ^^^^^^^^^ no `comm` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `std::io::File`, `std::io::BufferedReader`, `std::io::fs`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{File, BufferedReader, fs};
[INFO] [stdout]   |               ^^^^  ^^^^^^^^^^^^^^  ^^ no `fs` in `io`
[INFO] [stdout]   |               |     |
[INFO] [stdout]   |               |     no `BufferedReader` in `io`
[INFO] [stdout]   |               no `File` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::io::fs`
[INFO] [stdout]  --> src/main.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::fs::PathExtensions;
[INFO] [stdout]   |              ^^ could not find `fs` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rg`
[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] [stdout] error[E0433]: failed to resolve: could not find `fs` in `io`
[INFO] [stdout]   --> src/main.rs:59:32
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let found = match std::io::fs::walk_dir(&Path::new(".")) {
[INFO] [stdout]    |                                ^^ could not find `fs` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Path` in this scope
[INFO] [stdout]  --> src/main.rs:6:45
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn search_in_file(text_to_find: &str, path: Path) -> bool {
[INFO] [stdout]   |                                             ^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Sender` in this scope
[INFO] [stdout]   --> src/main.rs:23:20
[INFO] [stdout]    |
[INFO] [stdout] 23 |       let (tx, rx): (Sender<bool>, Receiver<bool>) = comm::channel();
[INFO] [stdout]    |                      ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: a trait with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let (tx, rx): (Send<bool>, Receiver<bool>) = comm::channel();
[INFO] [stdout]    |                    ^^^^
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::mpsc::Sender;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `Receiver` in this scope
[INFO] [stdout]   --> src/main.rs:23:34
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let (tx, rx): (Sender<bool>, Receiver<bool>) = comm::channel();
[INFO] [stdout]    |                                  ^^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::ops::Receiver;
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::sync::mpsc::Receiver;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `spawn` in this scope
[INFO] [stdout]   --> src/main.rs:34:9
[INFO] [stdout]    |
[INFO] [stdout] 34 |         spawn(move || {
[INFO] [stdout]    |         ^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::thread::spawn;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]   --> src/main.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let args = os::args();
[INFO] [stdout]    |                            ^^^^ not found in `os`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::env::args;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `range` in this scope
[INFO] [stdout]   --> src/main.rs:45:14
[INFO] [stdout]    |
[INFO] [stdout] 45 |     for _ in range(0u, number_of_files) {
[INFO] [stdout]    |              ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `IoError` in module `std::io`
[INFO] [stdout]   --> src/main.rs:54:28
[INFO] [stdout]    |
[INFO] [stdout] 54 |   fn log_error(why: std::io::IoError) {
[INFO] [stdout]    |                              ^^^^^^^ help: a struct with a similar name exists: `Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/main.rs:59:46
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let found = match std::io::fs::walk_dir(&Path::new(".")) {
[INFO] [stdout]    |                                              ^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::path::Path;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `set_exit_status` in module `std::os`
[INFO] [stdout]   --> src/main.rs:64:14
[INFO] [stdout]    |
[INFO] [stdout] 64 |     std::os::set_exit_status(if found { 0 } else { 1 })
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^ not found in `std::os`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 16 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "89d7abcc53e6a19947174af324703da008697b364bfb072e3fa79227e6fa3f30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89d7abcc53e6a19947174af324703da008697b364bfb072e3fa79227e6fa3f30", kill_on_drop: false }`
[INFO] [stdout] 89d7abcc53e6a19947174af324703da008697b364bfb072e3fa79227e6fa3f30