[INFO] cloning repository https://github.com/emirtotic/rust-learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emirtotic/rust-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femirtotic%2Frust-learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femirtotic%2Frust-learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5cb11dba1fa48cde8891a39cc6e182003e6162e4
[INFO] checking emirtotic/rust-learning against try#c8085cfed34c45021fc8f66d073f6394b3e35431 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femirtotic%2Frust-learning" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/emirtotic/rust-learning
[INFO] finished tweaking git repo https://github.com/emirtotic/rust-learning
[INFO] tweaked toml for git repo https://github.com/emirtotic/rust-learning written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emirtotic/rust-learning on toolchain c8085cfed34c45021fc8f66d073f6394b3e35431
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emirtotic/rust-learning 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" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a57509c5883d797b9078d655b8734ea6a8eb81f3b807bfa7c27fb597f409bda
[INFO] running `Command { std: "docker" "start" "-a" "9a57509c5883d797b9078d655b8734ea6a8eb81f3b807bfa7c27fb597f409bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a57509c5883d797b9078d655b8734ea6a8eb81f3b807bfa7c27fb597f409bda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a57509c5883d797b9078d655b8734ea6a8eb81f3b807bfa7c27fb597f409bda", kill_on_drop: false }`
[INFO] [stdout] 9a57509c5883d797b9078d655b8734ea6a8eb81f3b807bfa7c27fb597f409bda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df8ae727e4dd706f1c8d63bdff4482362675a051a1816c7d829a4676d114c4b3
[INFO] running `Command { std: "docker" "start" "-a" "df8ae727e4dd706f1c8d63bdff4482362675a051a1816c7d829a4676d114c4b3", kill_on_drop: false }`
[INFO] [stderr]     Checking untitled v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `string` in this scope
[INFO] [stdout]   --> src/bin/ownership/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn test(s: &string) {
[INFO] [stdout]    |             ^^^^^^ help: a struct with a similar name exists (notice the capitalization): `String`
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/c8085cfed34c45021fc8f66d073f6394b3e35431/library/alloc/src/string.rs:353:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named struct `String` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `s1` in this scope
[INFO] [stdout]   --> src/bin/ownership/main.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     println!("{}", &s1);
[INFO] [stdout]    |                     ^^ help: a local variable with a similar name exists: `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` (bin "ownership" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0412]: cannot find type `string` in this scope
[INFO] [stdout]   --> src/bin/ownership/main.rs:18:13
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn test(s: &string) {
[INFO] [stdout]    |             ^^^^^^ help: a struct with a similar name exists (notice the capitalization): `String`
[INFO] [stdout]    |
[INFO] [stdout]   --> /rustc/c8085cfed34c45021fc8f66d073f6394b3e35431/library/alloc/src/string.rs:353:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: similarly named struct `String` defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `s1` in this scope
[INFO] [stdout]   --> src/bin/ownership/main.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     println!("{}", &s1);
[INFO] [stdout]    |                     ^^ help: a local variable with a similar name exists: `s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0425.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `untitled` (bin "ownership") due to 2 previous errors
[INFO] [stdout] warning: variable `_X` should have a snake case name
[INFO] [stdout]  --> src/bin/operations/main.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let _X = {
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case (notice the capitalization): `_x`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_SUM` should have a snake case name
[INFO] [stdout]   --> src/bin/operations/main.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let _SUM = sum(2, 3);
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `_sum`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_O` should have a snake case name
[INFO] [stdout]   --> src/bin/operations/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let _O = operations("*", 2, 3);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case (notice the capitalization): `_o`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `_C` should have a snake case name
[INFO] [stdout]   --> src/bin/operations/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let _C = calculation("*", 2, 3);
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case (notice the capitalization): `_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "df8ae727e4dd706f1c8d63bdff4482362675a051a1816c7d829a4676d114c4b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df8ae727e4dd706f1c8d63bdff4482362675a051a1816c7d829a4676d114c4b3", kill_on_drop: false }`
[INFO] [stdout] df8ae727e4dd706f1c8d63bdff4482362675a051a1816c7d829a4676d114c4b3