[INFO] fetching crate one_err 0.0.8...
[INFO] checking one_err-0.0.8 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate one_err 0.0.8 into /workspace/builds/worker-7-tc2/source
[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-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate one_err 0.0.8 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d8205732742e93ec314a7d29bf368218e35730f227187e20eff9fe8a7ab27811
[INFO] running `Command { std: "docker" "start" "-a" "d8205732742e93ec314a7d29bf368218e35730f227187e20eff9fe8a7ab27811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d8205732742e93ec314a7d29bf368218e35730f227187e20eff9fe8a7ab27811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8205732742e93ec314a7d29bf368218e35730f227187e20eff9fe8a7ab27811", kill_on_drop: false }`
[INFO] [stdout] d8205732742e93ec314a7d29bf368218e35730f227187e20eff9fe8a7ab27811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5116b69f008d7f6528e6fcdb8afc7f8bd77558c4603c2d97dd887f472a93b8f
[INFO] running `Command { std: "docker" "start" "-a" "e5116b69f008d7f6528e6fcdb8afc7f8bd77558c4603c2d97dd887f472a93b8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling serde_json v1.0.143
[INFO] [stderr]     Checking hashbrown v0.15.5
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking indexmap v2.11.0
[INFO] [stderr]     Checking one_err v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] error: calls to `std::str::from_utf8` with an 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] [stderr] error: could not compile `one_err` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "e5116b69f008d7f6528e6fcdb8afc7f8bd77558c4603c2d97dd887f472a93b8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5116b69f008d7f6528e6fcdb8afc7f8bd77558c4603c2d97dd887f472a93b8f", kill_on_drop: false }`
[INFO] [stdout] e5116b69f008d7f6528e6fcdb8afc7f8bd77558c4603c2d97dd887f472a93b8f