[INFO] cloning repository https://github.com/rmwi/rmwi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rmwi/rmwi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmwi%2Frmwi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmwi%2Frmwi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] db69004a71fe859ad948737e74ba8473bf63ce28
[INFO] testing rmwi/rmwi against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frmwi%2Frmwi" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rmwi/rmwi on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rmwi/rmwi
[INFO] finished tweaking git repo https://github.com/rmwi/rmwi
[INFO] tweaked toml for git repo https://github.com/rmwi/rmwi written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/rmwi/rmwi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d62ea70e959b8da7bcf4747017db18d4dada466e6a26e2b2d5c1259e492da213
[INFO] running `Command { std: "docker" "start" "-a" "d62ea70e959b8da7bcf4747017db18d4dada466e6a26e2b2d5c1259e492da213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d62ea70e959b8da7bcf4747017db18d4dada466e6a26e2b2d5c1259e492da213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d62ea70e959b8da7bcf4747017db18d4dada466e6a26e2b2d5c1259e492da213", kill_on_drop: false }`
[INFO] [stdout] d62ea70e959b8da7bcf4747017db18d4dada466e6a26e2b2d5c1259e492da213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c13b8e7fdd53cf78e146aaceb94d85a5db9de1c7ce82d9a4ca7a6785d844a005
[INFO] running `Command { std: "docker" "start" "-a" "c13b8e7fdd53cf78e146aaceb94d85a5db9de1c7ce82d9a4ca7a6785d844a005", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rmwi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0412]: cannot find type `HashMap` in this scope
[INFO] [stdout]   --> src/lib.rs:26:27
[INFO] [stdout]    |
[INFO] [stdout] 26 |         const MIME_TYPES: HashMap<String, String> = map! {
[INFO] [stdout]    |                           ^^^^^^^ not found in this scope
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout] 15 |         use crate::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 15 |         use std::collections::HashMap;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::HashMap`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::HashMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `to_s` on type `String`
[INFO] [stdout]   --> src/lib.rs:16:43
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let mime = MIME_TYPES.get(ext.to_s.downcase, fallback);
[INFO] [stdout]    |                                           ^^^^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0412, E0609.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0412`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rmwi`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "c13b8e7fdd53cf78e146aaceb94d85a5db9de1c7ce82d9a4ca7a6785d844a005", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c13b8e7fdd53cf78e146aaceb94d85a5db9de1c7ce82d9a4ca7a6785d844a005", kill_on_drop: false }`
[INFO] [stdout] c13b8e7fdd53cf78e146aaceb94d85a5db9de1c7ce82d9a4ca7a6785d844a005