[INFO] cloning repository https://github.com/sirlag/ISBN
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sirlag/ISBN" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirlag%2FISBN", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirlag%2FISBN'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6da158bd5ceca36fac4cc5fb747d13fe87b104a
[INFO] testing sirlag/ISBN against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsirlag%2FISBN" "/workspace/builds/worker-58/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-58/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sirlag/ISBN on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sirlag/ISBN
[INFO] finished tweaking git repo https://github.com/sirlag/ISBN
[INFO] tweaked toml for git repo https://github.com/sirlag/ISBN written to /workspace/builds/worker-58/source/Cargo.toml
[INFO] crate git repo https://github.com/sirlag/ISBN already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b5784dd2ad3216491e362c90b792b4a57d3d1b3794aad09ab9616a7b229074e
[INFO] running `Command { std: "docker" "start" "-a" "8b5784dd2ad3216491e362c90b792b4a57d3d1b3794aad09ab9616a7b229074e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b5784dd2ad3216491e362c90b792b4a57d3d1b3794aad09ab9616a7b229074e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b5784dd2ad3216491e362c90b792b4a57d3d1b3794aad09ab9616a7b229074e", kill_on_drop: false }`
[INFO] [stdout] 8b5784dd2ad3216491e362c90b792b4a57d3d1b3794aad09ab9616a7b229074e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a6899ad6c3b21206cd4310cd37dfd5a7cb1d916f2aa019ccc237729e6b2a1dcd
[INFO] running `Command { std: "docker" "start" "-a" "a6899ad6c3b21206cd4310cd37dfd5a7cb1d916f2aa019ccc237729e6b2a1dcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling ISBN v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::rand`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rand;
[INFO] [stdout]   |     ^^^^^^^^^ no `rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]  --> src/main.rs:8:20
[INFO] [stdout]   |
[INFO] [stdout] 8 |     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] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:46:16
[INFO] [stdout]    |
[INFO] [stdout] 46 |             '0'...'9' => {isbn.push(token as u8 - '0' as u8);},
[INFO] [stdout]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/main.rs:76:18
[INFO] [stdout]    |
[INFO] [stdout] 76 |     for mut x in (0..length-1){
[INFO] [stdout]    |                  ^           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 76 -     for mut x in (0..length-1){
[INFO] [stdout] 76 +     for mut x in 0..length-1 {
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> src/main.rs:85:10
[INFO] [stdout]    |
[INFO] [stdout] 85 |         0...9    => {new_isbn.push(((check_value - to_match) + 48) as char)},
[INFO] [stdout]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0432.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ISBN` due to 3 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "a6899ad6c3b21206cd4310cd37dfd5a7cb1d916f2aa019ccc237729e6b2a1dcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6899ad6c3b21206cd4310cd37dfd5a7cb1d916f2aa019ccc237729e6b2a1dcd", kill_on_drop: false }`
[INFO] [stdout] a6899ad6c3b21206cd4310cd37dfd5a7cb1d916f2aa019ccc237729e6b2a1dcd