[INFO] fetching crate rmp 0.8.14...
[INFO] checking rmp-0.8.14 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rmp 0.8.14 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate rmp 0.8.14
[INFO] finished tweaking crates.io crate rmp 0.8.14
[INFO] tweaked toml for crates.io crate rmp 0.8.14 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmp 0.8.14 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rmp 0.8.14 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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a03d18563a7abed5432bf5f332c33c05da6fccbdc6440ce8529bbcf669a64202
[INFO] running `Command { std: "docker" "start" "-a" "a03d18563a7abed5432bf5f332c33c05da6fccbdc6440ce8529bbcf669a64202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a03d18563a7abed5432bf5f332c33c05da6fccbdc6440ce8529bbcf669a64202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a03d18563a7abed5432bf5f332c33c05da6fccbdc6440ce8529bbcf669a64202", kill_on_drop: false }`
[INFO] [stdout] a03d18563a7abed5432bf5f332c33c05da6fccbdc6440ce8529bbcf669a64202
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42a2c50181e7c77fc5541cf3e5dfba0f564fce6160a0cbfecee4332dde3a7f7c
[INFO] running `Command { std: "docker" "start" "-a" "42a2c50181e7c77fc5541cf3e5dfba0f564fce6160a0cbfecee4332dde3a7f7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking getrandom v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking rmp v0.8.14 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `MarkerWriteError` is never constructed
[INFO] [stdout]    --> src/decode/mod.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct MarkerWriteError<E: RmpReadErr>(E);
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stdout] warning: struct `MarkerWriteError` is never constructed
[INFO] [stdout]    --> src/decode/mod.rs:173:8
[INFO] [stdout]     |
[INFO] [stdout] 173 | struct MarkerWriteError<E: RmpReadErr>(E);
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `Command { std: "docker" "inspect" "42a2c50181e7c77fc5541cf3e5dfba0f564fce6160a0cbfecee4332dde3a7f7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a2c50181e7c77fc5541cf3e5dfba0f564fce6160a0cbfecee4332dde3a7f7c", kill_on_drop: false }`
[INFO] [stdout] 42a2c50181e7c77fc5541cf3e5dfba0f564fce6160a0cbfecee4332dde3a7f7c