[INFO] cloning repository https://github.com/dadalton/rust-in-action
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dadalton/rust-in-action" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdadalton%2Frust-in-action", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdadalton%2Frust-in-action'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3eb87260fb6d681246dfe4c865df408e278b58b8
[INFO] checking dadalton/rust-in-action against try#db4e1d23234d93b5e96ecc768b35d9090c32cddf for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdadalton%2Frust-in-action" "/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/dadalton/rust-in-action
[INFO] finished tweaking git repo https://github.com/dadalton/rust-in-action
[INFO] tweaked toml for git repo https://github.com/dadalton/rust-in-action written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dadalton/rust-in-action on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/dadalton/rust-in-action 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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b2958e33ca9cfb4ff746a76792e7998c5a15fee3953d52abcecc05f17a2a9b6
[INFO] running `Command { std: "docker" "start" "-a" "5b2958e33ca9cfb4ff746a76792e7998c5a15fee3953d52abcecc05f17a2a9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b2958e33ca9cfb4ff746a76792e7998c5a15fee3953d52abcecc05f17a2a9b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b2958e33ca9cfb4ff746a76792e7998c5a15fee3953d52abcecc05f17a2a9b6", kill_on_drop: false }`
[INFO] [stdout] 5b2958e33ca9cfb4ff746a76792e7998c5a15fee3953d52abcecc05f17a2a9b6
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10fd4fad066452943a23f7e149376899d1a059a90fbc0f592b57e32178cb8bc0
[INFO] running `Command { std: "docker" "start" "-a" "10fd4fad066452943a23f7e149376899d1a059a90fbc0f592b57e32178cb8bc0", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-rational v0.4.1
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking rust-in-action v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `rust-in-action` (bin "rust-in-action") due to 1 previous error
[INFO] [stdout] error: couldn't read `src/main.rs`: stream did not contain valid UTF-8
[INFO] [stdout]   |
[INFO] [stdout]   = note: invalid utf-8 at byte `0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: couldn't read `src/main.rs`: stream did not contain valid UTF-8
[INFO] [stdout]   |
[INFO] [stdout]   = note: invalid utf-8 at byte `0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-in-action` (bin "rust-in-action" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "10fd4fad066452943a23f7e149376899d1a059a90fbc0f592b57e32178cb8bc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10fd4fad066452943a23f7e149376899d1a059a90fbc0f592b57e32178cb8bc0", kill_on_drop: false }`
[INFO] [stdout] 10fd4fad066452943a23f7e149376899d1a059a90fbc0f592b57e32178cb8bc0