[INFO] updating cached repository https://github.com/cer/rust-hello-world
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 86d10ebd672220e3957c952f1ba97964ab0b5fa7
[INFO] checking cer/rust-hello-world against try#13f916f63bc6575d5ff1f989237dfabe88981368 for pr-69880
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcer%2Frust-hello-world" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cer/rust-hello-world on toolchain 13f916f63bc6575d5ff1f989237dfabe88981368
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cer/rust-hello-world
[INFO] finished tweaking git repo https://github.com/cer/rust-hello-world
[INFO] tweaked toml for git repo https://github.com/cer/rust-hello-world written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/cer/rust-hello-world already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+13f916f63bc6575d5ff1f989237dfabe88981368" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 026dc087a52677e3504ba9846cd50ee1bf85db40f4d723b5d73b627e8d8dfbe7
[INFO] running `"docker" "start" "-a" "026dc087a52677e3504ba9846cd50ee1bf85db40f4d723b5d73b627e8d8dfbe7"`
[INFO] [stderr]    Compiling smallvec v1.1.0
[INFO] [stderr]    Compiling mysql v17.0.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]    Compiling lexical-core v0.6.2
[INFO] [stderr]    Compiling lexical v4.0.0
[INFO] [stderr]    Compiling indexmap v1.3.1
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking backtrace-sys v0.1.32
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling derive_utils v0.9.1
[INFO] [stderr]    Compiling unicode-normalization v0.1.12
[INFO] [stderr]     Checking backtrace v0.3.42
[INFO] [stderr]     Checking serde_json v1.0.45
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking twox-hash v1.5.0
[INFO] [stderr]     Checking flate2 v1.0.13
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling openssl v0.10.26
[INFO] [stderr]    Compiling native-tls v0.2.3
[INFO] [stderr]    Compiling io-enum v0.2.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking cookie v0.11.1
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking num-rational v0.2.3
[INFO] [stderr]     Checking bigdecimal v0.1.0
[INFO] [stderr]     Checking rocket_http v0.4.2
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rust_decimal v1.2.0
[INFO] [stderr]     Checking mysql_common v0.19.2
[INFO] [stderr]    Compiling rocket_codegen v0.4.2
[INFO] [stderr]     Checking rocket v0.4.2
[INFO] [stderr]     Checking rocket_contrib v0.4.2
[INFO] [stderr]     Checking hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: struct is never constructed: `AStruct`
[INFO] [stderr]   --> src/main.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct AStruct (i32, String);
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `AStruct`
[INFO] [stderr]   --> src/main.rs:19:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | struct AStruct (i32, String);
[INFO] [stderr]    |        ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 50s
[INFO] running `"docker" "inspect" "026dc087a52677e3504ba9846cd50ee1bf85db40f4d723b5d73b627e8d8dfbe7"`
[INFO] running `"docker" "rm" "-f" "026dc087a52677e3504ba9846cd50ee1bf85db40f4d723b5d73b627e8d8dfbe7"`
[INFO] [stdout] 026dc087a52677e3504ba9846cd50ee1bf85db40f4d723b5d73b627e8d8dfbe7