[INFO] cloning repository https://github.com/HVHO/rust-study
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HVHO/rust-study" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHVHO%2Frust-study", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHVHO%2Frust-study'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d08ee95907fd2548326649e3a6de6283e4e8ed8d
[INFO] testing HVHO/rust-study against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHVHO%2Frust-study" "/workspace/builds/worker-45/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-45/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HVHO/rust-study on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HVHO/rust-study
[INFO] finished tweaking git repo https://github.com/HVHO/rust-study
[INFO] tweaked toml for git repo https://github.com/HVHO/rust-study written to /workspace/builds/worker-45/source/Cargo.toml
[INFO] crate git repo https://github.com/HVHO/rust-study already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1abc8e77407312839ee0a49a6f2f5c693d58e5ac186709d3b2d28bfebc2685c4
[INFO] running `Command { std: "docker" "start" "-a" "1abc8e77407312839ee0a49a6f2f5c693d58e5ac186709d3b2d28bfebc2685c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1abc8e77407312839ee0a49a6f2f5c693d58e5ac186709d3b2d28bfebc2685c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1abc8e77407312839ee0a49a6f2f5c693d58e5ac186709d3b2d28bfebc2685c4", kill_on_drop: false }`
[INFO] [stdout] 1abc8e77407312839ee0a49a6f2f5c693d58e5ac186709d3b2d28bfebc2685c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-45/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03944425fa6979b8a0dcee04083c0709d247abf6e0b4bdba33ae2ef10c2ca044
[INFO] running `Command { std: "docker" "start" "-a" "03944425fa6979b8a0dcee04083c0709d247abf6e0b4bdba33ae2ef10c2ca044", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stdout]   --> src/main.rs:14:15
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Some(&x)if x == y => println!("case 1"),
[INFO] [stdout]    |               ^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `str`
[INFO] [stdout]    = note: all local variables must have a statically known size
[INFO] [stdout]    = help: unsized locals are gated as an unstable feature
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: can't compare `str` with `{integer}`
[INFO] [stdout]   --> src/main.rs:14:22
[INFO] [stdout]    |
[INFO] [stdout] 14 |         Some(&x)if x == y => println!("case 1"),
[INFO] [stdout]    |                      ^^ no implementation for `str == {integer}`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `PartialEq<{integer}>` is not implemented for `str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_study` due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "03944425fa6979b8a0dcee04083c0709d247abf6e0b4bdba33ae2ef10c2ca044", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03944425fa6979b8a0dcee04083c0709d247abf6e0b4bdba33ae2ef10c2ca044", kill_on_drop: false }`
[INFO] [stdout] 03944425fa6979b8a0dcee04083c0709d247abf6e0b4bdba33ae2ef10c2ca044