[INFO] fetching crate rustsym 0.3.2...
[INFO] checking rustsym-0.3.2 against try#6f8a6450478f69b8510c8976ab6c2a70b3b0e47c for pr-84920
[INFO] extracting crate rustsym 0.3.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate rustsym 0.3.2 on toolchain 6f8a6450478f69b8510c8976ab6c2a70b3b0e47c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustsym 0.3.2
[INFO] finished tweaking crates.io crate rustsym 0.3.2
[INFO] tweaked toml for crates.io crate rustsym 0.3.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syncbox v0.2.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 826e965381a8ada75594fbe1b23f8d55ed8c276b126ee19ff4022dd144f6536f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "826e965381a8ada75594fbe1b23f8d55ed8c276b126ee19ff4022dd144f6536f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "826e965381a8ada75594fbe1b23f8d55ed8c276b126ee19ff4022dd144f6536f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "826e965381a8ada75594fbe1b23f8d55ed8c276b126ee19ff4022dd144f6536f", kill_on_drop: false }`
[INFO] [stdout] 826e965381a8ada75594fbe1b23f8d55ed8c276b126ee19ff4022dd144f6536f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+6f8a6450478f69b8510c8976ab6c2a70b3b0e47c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb23e8053596f8c875533f8d4b3c8b9f5c7acd6c0351c2404c89d2c9b541955d
[INFO] running `Command { std: "docker" "start" "-a" "bb23e8053596f8c875533f8d4b3c8b9f5c7acd6c0351c2404c89d2c9b541955d", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]    Compiling extprim v1.7.1
[INFO] [stderr]     Checking num-traits v0.2.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking walkdir v0.1.8
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking syncbox v0.2.4
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking syntex_pos v0.59.1
[INFO] [stderr]     Checking syntex_errors v0.59.1
[INFO] [stderr]     Checking syntex_syntax v0.59.1
[INFO] [stderr]     Checking rustsym v0.3.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, RustcEncodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(e.emit_str(match *self {
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `RustcEncodable`: rustc-serialize is deprecated and no longer supported
[INFO] [stdout]   --> src/main.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 | #[derive(Debug, RustcEncodable)]
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         try!(e.emit_str(match *self {
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.97s
[INFO] running `Command { std: "docker" "inspect" "bb23e8053596f8c875533f8d4b3c8b9f5c7acd6c0351c2404c89d2c9b541955d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb23e8053596f8c875533f8d4b3c8b9f5c7acd6c0351c2404c89d2c9b541955d", kill_on_drop: false }`
[INFO] [stdout] bb23e8053596f8c875533f8d4b3c8b9f5c7acd6c0351c2404c89d2c9b541955d