[INFO] cloning repository https://github.com/orf/s3-empty
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/orf/s3-empty" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forf%2Fs3-empty", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forf%2Fs3-empty'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 18b952ee973d470f15097177a1a4475d2eabf34e
[INFO] checking orf/s3-empty against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Forf%2Fs3-empty" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/orf/s3-empty on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/orf/s3-empty
[INFO] finished tweaking git repo https://github.com/orf/s3-empty
[INFO] tweaked toml for git repo https://github.com/orf/s3-empty written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/orf/s3-empty already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", 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] 981ce5e8bb176188189f8bceb58392443c3d168c9c66c6d1f205b0e46c19269f
[INFO] running `Command { std: "docker" "start" "-a" "981ce5e8bb176188189f8bceb58392443c3d168c9c66c6d1f205b0e46c19269f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "981ce5e8bb176188189f8bceb58392443c3d168c9c66c6d1f205b0e46c19269f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "981ce5e8bb176188189f8bceb58392443c3d168c9c66c6d1f205b0e46c19269f", kill_on_drop: false }`
[INFO] [stdout] 981ce5e8bb176188189f8bceb58392443c3d168c9c66c6d1f205b0e46c19269f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 53a274065c26cb2883bb9782dd5c3db383fa3ae5b6b92c63084102fa8d08550a
[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" "53a274065c26cb2883bb9782dd5c3db383fa3ae5b6b92c63084102fa8d08550a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking hashbrown v0.9.0
[INFO] [stderr]    Compiling const_fn v0.4.2
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking zeroize v1.1.1
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling standback v0.2.10
[INFO] [stderr]    Compiling time v0.2.20
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tracing-core v0.1.16
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.21
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking socket2 v0.3.15
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking sha2 v0.9.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stderr]     Checking tracing v0.1.19
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling rusoto_core v0.45.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling pin-project-internal v0.4.23
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling structopt-derive v0.4.10
[INFO] [stderr]     Checking time-macros v0.1.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking structopt v0.3.17
[INFO] [stderr]     Checking pin-project v0.4.23
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.6
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking hyper v0.13.8
[INFO] [stderr]     Checking rusoto_credential v0.45.0
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking rusoto_signature v0.45.0
[INFO] [stderr]     Checking rusoto_s3 v0.45.0
[INFO] [stderr]     Checking s3-empty v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `GetBucketLocationRequest`, `ListObjectsRequest`, `S3`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rusoto_s3::{S3Client, S3, ListObjectsRequest, GetBucketLocationRequest};
[INFO] [stdout]   |                           ^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GetBucketLocationRequest`, `ListObjectsRequest`, `S3`
[INFO] [stdout]  --> src/main.rs:1:27
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rusoto_s3::{S3Client, S3, ListObjectsRequest, GetBucketLocationRequest};
[INFO] [stdout]   |                           ^^  ^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s3_client`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let s3_client = S3Client::new(region);
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_s3_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s3_client`
[INFO] [stdout]   --> src/main.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let s3_client = S3Client::new(region);
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_s3_client`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[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 1m 49s
[INFO] running `Command { std: "docker" "inspect" "53a274065c26cb2883bb9782dd5c3db383fa3ae5b6b92c63084102fa8d08550a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "53a274065c26cb2883bb9782dd5c3db383fa3ae5b6b92c63084102fa8d08550a", kill_on_drop: false }`
[INFO] [stdout] 53a274065c26cb2883bb9782dd5c3db383fa3ae5b6b92c63084102fa8d08550a