[INFO] fetching crate mountpoint-s3-crt 0.12.4...
[INFO] checking mountpoint-s3-crt-0.12.4 against master#c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2 for pr-142712
[INFO] extracting crate mountpoint-s3-crt 0.12.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate mountpoint-s3-crt 0.12.4
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mountpoint-s3-crt 0.12.4
[INFO] tweaked toml for crates.io crate mountpoint-s3-crt 0.12.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mountpoint-s3-crt 0.12.4 on toolchain c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mountpoint-s3-crt 0.12.4 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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_home v0.1.0
[INFO] [stderr]   Downloaded windows-targets v0.53.1
[INFO] [stderr]   Downloaded smallstr v0.3.0
[INFO] [stderr]   Downloaded which v7.0.3
[INFO] [stderr]   Downloaded rustflags v0.1.7
[INFO] [stderr]   Downloaded criterion v0.6.0
[INFO] [stderr]   Downloaded mountpoint-s3-crt-sys v0.14.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b68b1efb9da03eede1920d129e3b8ae0c15cf895312194051c342b515e7131c
[INFO] running `Command { std: "docker" "start" "-a" "5b68b1efb9da03eede1920d129e3b8ae0c15cf895312194051c342b515e7131c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b68b1efb9da03eede1920d129e3b8ae0c15cf895312194051c342b515e7131c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b68b1efb9da03eede1920d129e3b8ae0c15cf895312194051c342b515e7131c", kill_on_drop: false }`
[INFO] [stdout] 5b68b1efb9da03eede1920d129e3b8ae0c15cf895312194051c342b515e7131c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+c720f49c46ec3e70bbc2bbb3e0dd1fe7fc0a47f2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab2824f7e07f7dcb4ef08d44f81ed517bc128e59eab8e4a726cb0ff080f96ca4
[INFO] running `Command { std: "docker" "start" "-a" "ab2824f7e07f7dcb4ef08d44f81ed517bc128e59eab8e4a726cb0ff080f96ca4", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.102
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[INFO] [stderr]     Checking cfg-if v1.0.1
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[INFO] [stderr]    Compiling ctor v0.2.9
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[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]    Compiling mountpoint-s3-crt-sys v0.14.0
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.6.0
[INFO] [stderr]     Checking mountpoint-s3-crt v0.12.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `YieldNow` is never constructed
[INFO] [stdout]   --> benches/event_loop_future.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     struct YieldNow(bool);
[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 3m 08s
[INFO] running `Command { std: "docker" "inspect" "ab2824f7e07f7dcb4ef08d44f81ed517bc128e59eab8e4a726cb0ff080f96ca4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab2824f7e07f7dcb4ef08d44f81ed517bc128e59eab8e4a726cb0ff080f96ca4", kill_on_drop: false }`
[INFO] [stdout] ab2824f7e07f7dcb4ef08d44f81ed517bc128e59eab8e4a726cb0ff080f96ca4