[INFO] cloning repository https://github.com/cmltaWt0/rust_test_hello
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cmltaWt0/rust_test_hello" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcmltaWt0%2Frust_test_hello", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcmltaWt0%2Frust_test_hello'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ff001529cd65bcb26c040d57f1697b51fd3da6a5
[INFO] checking cmltaWt0/rust_test_hello/ff001529cd65bcb26c040d57f1697b51fd3da6a5 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FcmltaWt0%2Frust_test_hello" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cmltaWt0/rust_test_hello on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cmltaWt0/rust_test_hello
[INFO] finished tweaking git repo https://github.com/cmltaWt0/rust_test_hello
[INFO] tweaked toml for git repo https://github.com/cmltaWt0/rust_test_hello written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cmltaWt0/rust_test_hello already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 430374b35a1250512d5ea68651fa04edc76715792e4aaea7de0d5d16809dcff7
[INFO] running `Command { std: "docker" "start" "-a" "430374b35a1250512d5ea68651fa04edc76715792e4aaea7de0d5d16809dcff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "430374b35a1250512d5ea68651fa04edc76715792e4aaea7de0d5d16809dcff7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "430374b35a1250512d5ea68651fa04edc76715792e4aaea7de0d5d16809dcff7", kill_on_drop: false }`
[INFO] [stdout] 430374b35a1250512d5ea68651fa04edc76715792e4aaea7de0d5d16809dcff7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a070e6960833e827d1cfe56fdf55e5010ebbb5b937bdeb798159c5bf97a0efa3
[INFO] running `Command { std: "docker" "start" "-a" "a070e6960833e827d1cfe56fdf55e5010ebbb5b937bdeb798159c5bf97a0efa3", kill_on_drop: false }`
[INFO] [stderr]     Checking hello v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find value `arg` in this scope
[INFO] [stdout]    --> src/main.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 |         if let Some(c) = arg.chars().next() {
[INFO] [stdout]     |                          ^^^ help: a function with a similar name exists: `args`
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/env.rs:810:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: similarly named function `args` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `arg` in this scope
[INFO] [stdout]    --> src/main.rs:132:26
[INFO] [stdout]     |
[INFO] [stdout] 132 |         if let Some(c) = arg.chars().next() {
[INFO] [stdout]     |                          ^^^ help: a function with a similar name exists: `args`
[INFO] [stdout]    --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/env.rs:810:1
[INFO] [stdout]     |
[INFO] [stdout]     = note: similarly named function `args` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |             match name {
[INFO] [stdout]     |                   ---- this expression has type `String`
[INFO] [stdout] 134 |                 'i' | 'I' => println!("Hello {}", name),
[INFO] [stdout]     |                 ^^^ expected `String`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:134:23
[INFO] [stdout]     |
[INFO] [stdout] 133 |             match name {
[INFO] [stdout]     |                   ---- this expression has type `String`
[INFO] [stdout] 134 |                 'i' | 'I' => println!("Hello {}", name),
[INFO] [stdout]     |                       ^^^ expected `String`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:134:17
[INFO] [stdout]     |
[INFO] [stdout] 133 |             match name {
[INFO] [stdout]     |                   ---- this expression has type `String`
[INFO] [stdout] 134 |                 'i' | 'I' => println!("Hello {}", name),
[INFO] [stdout]     |                 ^^^ expected `String`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]    --> src/main.rs:134:23
[INFO] [stdout]     |
[INFO] [stdout] 133 |             match name {
[INFO] [stdout]     |                   ---- this expression has type `String`
[INFO] [stdout] 134 |                 'i' | 'I' => println!("Hello {}", name),
[INFO] [stdout]     |                       ^^^ expected `String`, found `char`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello` (bin "hello") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `hello` (bin "hello" test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "a070e6960833e827d1cfe56fdf55e5010ebbb5b937bdeb798159c5bf97a0efa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a070e6960833e827d1cfe56fdf55e5010ebbb5b937bdeb798159c5bf97a0efa3", kill_on_drop: false }`
[INFO] [stdout] a070e6960833e827d1cfe56fdf55e5010ebbb5b937bdeb798159c5bf97a0efa3