[INFO] cloning repository https://github.com/emosenkis/codediff
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emosenkis/codediff" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femosenkis%2Fcodediff", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femosenkis%2Fcodediff'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1972f1861aa499f7ad22c6287399cb43c4e9f509
[INFO] testing emosenkis/codediff against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femosenkis%2Fcodediff" "/workspace/builds/worker-75/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-75/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/emosenkis/codediff on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/emosenkis/codediff
[INFO] finished tweaking git repo https://github.com/emosenkis/codediff
[INFO] tweaked toml for git repo https://github.com/emosenkis/codediff written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate git repo https://github.com/emosenkis/codediff already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f5bac76dc8e8a53cee46d7264ce7a54d165e5a41de5275057c94725b88493f1a
[INFO] running `Command { std: "docker" "start" "-a" "f5bac76dc8e8a53cee46d7264ce7a54d165e5a41de5275057c94725b88493f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f5bac76dc8e8a53cee46d7264ce7a54d165e5a41de5275057c94725b88493f1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5bac76dc8e8a53cee46d7264ce7a54d165e5a41de5275057c94725b88493f1a", kill_on_drop: false }`
[INFO] [stdout] f5bac76dc8e8a53cee46d7264ce7a54d165e5a41de5275057c94725b88493f1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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=warn" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3b13a2285445066244ee5bfa5b527a5ebc653b6f1c9bf81d1c87db33855a8a3
[INFO] running `Command { std: "docker" "start" "-a" "d3b13a2285445066244ee5bfa5b527a5ebc653b6f1c9bf81d1c87db33855a8a3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling codediff v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io as io;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^ no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]   --> src/main.rs:11:20
[INFO] [stdout]    |
[INFO] [stdout] 11 |     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[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/main.rs:12:58
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut f1 = io::BufferedReader::new(io::File::open(&Path::new(&args[1])));
[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[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]   --> src/main.rs:13:58
[INFO] [stdout]    |
[INFO] [stdout] 13 |     let mut f2 = io::BufferedReader::new(io::File::open(&Path::new(&args[2])));
[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: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codediff` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "d3b13a2285445066244ee5bfa5b527a5ebc653b6f1c9bf81d1c87db33855a8a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3b13a2285445066244ee5bfa5b527a5ebc653b6f1c9bf81d1c87db33855a8a3", kill_on_drop: false }`
[INFO] [stdout] d3b13a2285445066244ee5bfa5b527a5ebc653b6f1c9bf81d1c87db33855a8a3