[INFO] cloning repository https://github.com/georgefst/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/georgefst/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgefst%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgefst%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9ed365979c8c36e72d005049f308d0048b141706
[INFO] checking georgefst/rustlings against try#a7b168ac4977e8e93a43448b44847adaa305d5a9 for pr-150557
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgefst%2Frustlings" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/georgefst/rustlings
[INFO] finished tweaking git repo https://github.com/georgefst/rustlings
[INFO] tweaked toml for git repo https://github.com/georgefst/rustlings written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/georgefst/rustlings on toolchain a7b168ac4977e8e93a43448b44847adaa305d5a9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/georgefst/rustlings 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" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6518367e5efc2e7a0835d479c6389b694934d7f9f971be5dc044da663114cdf1
[INFO] running `Command { std: "docker" "start" "-a" "6518367e5efc2e7a0835d479c6389b694934d7f9f971be5dc044da663114cdf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6518367e5efc2e7a0835d479c6389b694934d7f9f971be5dc044da663114cdf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6518367e5efc2e7a0835d479c6389b694934d7f9f971be5dc044da663114cdf1", kill_on_drop: false }`
[INFO] [stdout] 6518367e5efc2e7a0835d479c6389b694934d7f9f971be5dc044da663114cdf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+a7b168ac4977e8e93a43448b44847adaa305d5a9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0197713d72b0e5d018750c2a60c7fe15bcd4cf827128ab105c0769940d7a1f36
[INFO] running `Command { std: "docker" "start" "-a" "0197713d72b0e5d018750c2a60c7fe15bcd4cf827128ab105c0769940d7a1f36", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `exercises` (bin "using_as") due to 1 previous error
[INFO] [stdout] error[E0277]: cannot divide `f64` by `usize`
[INFO] [stdout]  --> exercises/23_conversions/using_as.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     total / values.len()
[INFO] [stdout]   |           ^ no implementation for `f64 / usize`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Div<usize>` is not implemented for `f64`
[INFO] [stdout] help: the following other types implement trait `Div<Rhs>`
[INFO] [stdout]  --> /rustc/a7b168ac4977e8e93a43448b44847adaa305d5a9/library/core/src/ops/arith.rs:513:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: `f64` implements `Div`
[INFO] [stdout]  ::: /rustc/a7b168ac4977e8e93a43448b44847adaa305d5a9/library/core/src/ops/arith.rs:526:0
[INFO] [stdout]   |
[INFO] [stdout]   = note: in this macro invocation
[INFO] [stdout]  --> /rustc/a7b168ac4977e8e93a43448b44847adaa305d5a9/library/core/src/internal_macros.rs:22:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: `&f64` implements `Div<f64>`
[INFO] [stdout]  ::: /rustc/a7b168ac4977e8e93a43448b44847adaa305d5a9/library/core/src/internal_macros.rs:33:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: `f64` implements `Div<&f64>`
[INFO] [stdout]  ::: /rustc/a7b168ac4977e8e93a43448b44847adaa305d5a9/library/core/src/internal_macros.rs:44:8
[INFO] [stdout]   |
[INFO] [stdout]   = note: `&f64` implements `Div`
[INFO] [stdout]   = note: this error originates in the macro `div_impl_float` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `,`, `:`, or `}`, found `!`
[INFO] [stdout]   --> exercises/12_options/options2.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 13 |         word = optional_target {
[INFO] [stdout]    |                --------------- while parsing this struct
[INFO] [stdout] 14 |             assert_eq!(word, target);
[INFO] [stdout]    |             ---------^ expected one of `,`, `:`, or `}`
[INFO] [stdout]    |             |
[INFO] [stdout]    |             while parsing this struct field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `,`, `:`, or `}`, found `)`
[INFO] [stdout]   --> exercises/12_options/options2.rs:14:36
[INFO] [stdout]    |
[INFO] [stdout] 13 |         word = optional_target {
[INFO] [stdout]    |                --------------- while parsing this struct
[INFO] [stdout] 14 |             assert_eq!(word, target);
[INFO] [stdout]    |                                    ^ expected one of `,`, `:`, or `}`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected one of `.`, `;`, `?`, `}`, or an operator, found `{`
[INFO] [stdout]   --> exercises/12_options/options2.rs:32:43
[INFO] [stdout]    |
[INFO] [stdout] 32 |         integer = optional_integers.pop() {
[INFO] [stdout]    |                                           ^ expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `word` in this scope
[INFO] [stdout]   --> exercises/12_options/options2.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         word = optional_target {
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: you might have meant to introduce a new binding
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let word = optional_target {
[INFO] [stdout]    |         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0574]: expected struct, variant or union type, found local variable `optional_target`
[INFO] [stdout]   --> exercises/12_options/options2.rs:13:16
[INFO] [stdout]    |
[INFO] [stdout] 13 |         word = optional_target {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^ not a struct, variant or union type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "options2" test) due to 5 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0425, E0574.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0197713d72b0e5d018750c2a60c7fe15bcd4cf827128ab105c0769940d7a1f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0197713d72b0e5d018750c2a60c7fe15bcd4cf827128ab105c0769940d7a1f36", kill_on_drop: false }`
[INFO] [stdout] 0197713d72b0e5d018750c2a60c7fe15bcd4cf827128ab105c0769940d7a1f36
