[INFO] fetching crate one_err 0.0.8...
[INFO] checking one_err-0.0.8 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate one_err 0.0.8 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate one_err 0.0.8 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate one_err 0.0.8
[INFO] finished tweaking crates.io crate one_err 0.0.8
[INFO] tweaked toml for crates.io crate one_err 0.0.8 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8c424d7bf068bbf6ed764e006d70790fc21db4b371c2c9667184ec960fe5f0c
[INFO] running `Command { std: "docker" "start" "-a" "d8c424d7bf068bbf6ed764e006d70790fc21db4b371c2c9667184ec960fe5f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8c424d7bf068bbf6ed764e006d70790fc21db4b371c2c9667184ec960fe5f0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8c424d7bf068bbf6ed764e006d70790fc21db4b371c2c9667184ec960fe5f0c", kill_on_drop: false }`
[INFO] [stdout] d8c424d7bf068bbf6ed764e006d70790fc21db4b371c2c9667184ec960fe5f0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bacaa7403fbadb67230ef34010515691eb8be830af28fadeb821a560d993e8a5
[INFO] running `Command { std: "docker" "start" "-a" "bacaa7403fbadb67230ef34010515691eb8be830af28fadeb821a560d993e8a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking one_err v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] error: calls to `std::str::from_utf8` with a invalid literal always return an error
[INFO] [stdout]    --> src/test.rs:104:13
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let e = std::str::from_utf8(&[0, 159, 146, 150])
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^-------------------^
[INFO] [stdout]     |                                 |
[INFO] [stdout]     |                                 the literal was valid UTF-8 up to the 1 bytes
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:1:9
[INFO] [stdout]     |
[INFO] [stdout] 1   | #![deny(warnings)]
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(invalid_from_utf8)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `one_err` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "bacaa7403fbadb67230ef34010515691eb8be830af28fadeb821a560d993e8a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bacaa7403fbadb67230ef34010515691eb8be830af28fadeb821a560d993e8a5", kill_on_drop: false }`
[INFO] [stdout] bacaa7403fbadb67230ef34010515691eb8be830af28fadeb821a560d993e8a5
