[INFO] cloning repository https://github.com/yvan-sraka/base64decode
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yvan-sraka/base64decode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvan-sraka%2Fbase64decode", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvan-sraka%2Fbase64decode'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 60e4388a4e1388448e698653686297bc1a4b32b1
[INFO] checking yvan-sraka/base64decode against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyvan-sraka%2Fbase64decode" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yvan-sraka/base64decode on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yvan-sraka/base64decode
[INFO] finished tweaking git repo https://github.com/yvan-sraka/base64decode
[INFO] tweaked toml for git repo https://github.com/yvan-sraka/base64decode written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/yvan-sraka/base64decode already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ad22e0be4e13d05554d496fdf89af8376b4ccb19c1ed49cfda210b3cc4b0c53
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0ad22e0be4e13d05554d496fdf89af8376b4ccb19c1ed49cfda210b3cc4b0c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ad22e0be4e13d05554d496fdf89af8376b4ccb19c1ed49cfda210b3cc4b0c53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad22e0be4e13d05554d496fdf89af8376b4ccb19c1ed49cfda210b3cc4b0c53", kill_on_drop: false }`
[INFO] [stdout] 0ad22e0be4e13d05554d496fdf89af8376b4ccb19c1ed49cfda210b3cc4b0c53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7046e1fde2368e5bdc4589cfd341ab459110336e206bd7d70e8c63a3d5bc67a3
[INFO] running `Command { std: "docker" "start" "-a" "7046e1fde2368e5bdc4589cfd341ab459110336e206bd7d70e8c63a3d5bc67a3", kill_on_drop: false }`
[INFO] [stderr]     Checking base64decode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     std::io::stdin().read_line(input).unwrap();
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                expected `&mut String`, found struct `String`
[INFO] [stdout]    |                                help: consider mutably borrowing here: `&mut input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `base64decode`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/main.rs:37:32
[INFO] [stdout]    |
[INFO] [stdout] 37 |     std::io::stdin().read_line(input).unwrap();
[INFO] [stdout]    |                                ^^^^^
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                expected `&mut String`, found struct `String`
[INFO] [stdout]    |                                help: consider mutably borrowing here: `&mut input`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "7046e1fde2368e5bdc4589cfd341ab459110336e206bd7d70e8c63a3d5bc67a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7046e1fde2368e5bdc4589cfd341ab459110336e206bd7d70e8c63a3d5bc67a3", kill_on_drop: false }`
[INFO] [stdout] 7046e1fde2368e5bdc4589cfd341ab459110336e206bd7d70e8c63a3d5bc67a3