[INFO] fetching crate evmc-vm 7.5.0...
[INFO] checking evmc-vm-7.5.0 against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] extracting crate evmc-vm 7.5.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate evmc-vm 7.5.0 on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate evmc-vm 7.5.0
[INFO] finished tweaking crates.io crate evmc-vm 7.5.0
[INFO] tweaked toml for crates.io crate evmc-vm 7.5.0 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ca334848cfa57ef9d7635a6d6be96eb5f59005f9dbc554c8f9955df2a5b4ca6
[INFO] running `Command { std: "docker" "start" "-a" "2ca334848cfa57ef9d7635a6d6be96eb5f59005f9dbc554c8f9955df2a5b4ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ca334848cfa57ef9d7635a6d6be96eb5f59005f9dbc554c8f9955df2a5b4ca6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca334848cfa57ef9d7635a6d6be96eb5f59005f9dbc554c8f9955df2a5b4ca6", kill_on_drop: false }`
[INFO] [stdout] 2ca334848cfa57ef9d7635a6d6be96eb5f59005f9dbc554c8f9955df2a5b4ca6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b838cd06de7481e88d5969c41a3ff67dd0a97e7f69bec5e50a43d8bbe31723e5
[INFO] running `Command { std: "docker" "start" "-a" "b838cd06de7481e88d5969c41a3ff67dd0a97e7f69bec5e50a43d8bbe31723e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clang-sys v0.29.3
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling evmc-sys v7.5.0
[INFO] [stderr]     Checking evmc-vm v7.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:820:13
[INFO] [stdout]     |
[INFO] [stdout] 820 |         let mut exe_context = ExecutionContext::new(&host, host_context);
[INFO] [stdout]     |             ----^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.56s
[INFO] running `Command { std: "docker" "inspect" "b838cd06de7481e88d5969c41a3ff67dd0a97e7f69bec5e50a43d8bbe31723e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b838cd06de7481e88d5969c41a3ff67dd0a97e7f69bec5e50a43d8bbe31723e5", kill_on_drop: false }`
[INFO] [stdout] b838cd06de7481e88d5969c41a3ff67dd0a97e7f69bec5e50a43d8bbe31723e5