[INFO] cloning repository https://github.com/sjeandeaux/aws-file-exists
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sjeandeaux/aws-file-exists" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjeandeaux%2Faws-file-exists", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjeandeaux%2Faws-file-exists'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3cefa39dd4b6c3c1a5b6287f27b971fd5ed5090
[INFO] checking sjeandeaux/aws-file-exists against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsjeandeaux%2Faws-file-exists" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sjeandeaux/aws-file-exists
[INFO] finished tweaking git repo https://github.com/sjeandeaux/aws-file-exists
[INFO] tweaked toml for git repo https://github.com/sjeandeaux/aws-file-exists written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sjeandeaux/aws-file-exists on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sjeandeaux/aws-file-exists 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4ce11b265754d8ec2f88ef69a2e03368b418eb6b00a397df383275525c40aac
[INFO] running `Command { std: "docker" "start" "-a" "b4ce11b265754d8ec2f88ef69a2e03368b418eb6b00a397df383275525c40aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4ce11b265754d8ec2f88ef69a2e03368b418eb6b00a397df383275525c40aac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4ce11b265754d8ec2f88ef69a2e03368b418eb6b00a397df383275525c40aac", kill_on_drop: false }`
[INFO] [stdout] b4ce11b265754d8ec2f88ef69a2e03368b418eb6b00a397df383275525c40aac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47884e78df874d19c83ab39690c5efe0530cbbccfb01afc84aacd37314a38273
[INFO] running `Command { std: "docker" "start" "-a" "47884e78df874d19c83ab39690c5efe0530cbbccfb01afc84aacd37314a38273", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]    Compiling tokio v1.13.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-macro v0.3.17
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking bytes-utils v0.1.1
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking socket2 v0.4.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking zeroize v1.4.2
[INFO] [stderr]     Checking tower-layer v0.3.1
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking fastrand v1.5.0
[INFO] [stderr]     Checking xmlparser v0.13.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling aws-types v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking urlencoding v1.3.3
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking smithy-types v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking smithy-eventstream v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking smithy-query v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking smithy-json v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking sct v0.6.1
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking ct-logs v0.8.0
[INFO] [stderr]     Checking rustls v0.19.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking rustls-native-certs v0.5.0
[INFO] [stderr]    Compiling tokio-macros v1.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling pin-project-internal v1.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking tracing v0.1.29
[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking smithy-xml v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking pin-project v1.0.8
[INFO] [stderr]     Checking aws-sigv4 v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking structopt v0.3.25
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking smithy-async v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking tower v0.4.10
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking h2 v0.3.6
[INFO] [stderr]     Checking hyper v0.14.13
[INFO] [stderr]     Checking smithy-http v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking smithy-http-tower v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-sig-auth v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-endpoint v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-http v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-auth v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking smithy-client v0.26.0-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-hyper v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-sdk-sts v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-sdk-s3 v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-config v0.0.21-alpha (https://github.com/awslabs/aws-sdk-rust?tag=v0.0.21-alpha#d02a7f0d)
[INFO] [stderr]     Checking aws-file-exists v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// The name of the bucket.
[INFO] [stdout] 14 | |     #[structopt(short, long)]
[INFO] [stdout] 15 | |     bucket: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// Whether to display additional information.
[INFO] [stdout] 18 | |     #[structopt(short, long)]
[INFO] [stdout] 19 | |     file: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aws-file-exists` (bin "aws-file-exists") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     /// The name of the bucket.
[INFO] [stdout] 14 | |     #[structopt(short, long)]
[INFO] [stdout] 15 | |     bucket: String,
[INFO] [stdout]    | |__________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/main.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     /// Whether to display additional information.
[INFO] [stdout] 18 | |     #[structopt(short, long)]
[INFO] [stdout] 19 | |     file: String,
[INFO] [stdout]    | |________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `aws-file-exists` (bin "aws-file-exists" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "47884e78df874d19c83ab39690c5efe0530cbbccfb01afc84aacd37314a38273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47884e78df874d19c83ab39690c5efe0530cbbccfb01afc84aacd37314a38273", kill_on_drop: false }`
[INFO] [stdout] 47884e78df874d19c83ab39690c5efe0530cbbccfb01afc84aacd37314a38273
