[INFO] fetching crate s3-algo 0.5.0... [INFO] testing s3-algo-0.5.0 against 1.55.0 for beta-1.56-1 [INFO] extracting crate s3-algo 0.5.0 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate s3-algo 0.5.0 on toolchain 1.55.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate s3-algo 0.5.0 [INFO] finished tweaking crates.io crate s3-algo 0.5.0 [INFO] tweaked toml for crates.io crate s3-algo 0.5.0 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate crates.io crate s3-algo 0.5.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] d2235fcd4baa0a64aa399826d3c3b1beee759678c64be9ae01a480d4c6bdefb6 [INFO] running `Command { std: "docker" "start" "-a" "d2235fcd4baa0a64aa399826d3c3b1beee759678c64be9ae01a480d4c6bdefb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d2235fcd4baa0a64aa399826d3c3b1beee759678c64be9ae01a480d4c6bdefb6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d2235fcd4baa0a64aa399826d3c3b1beee759678c64be9ae01a480d4c6bdefb6", kill_on_drop: false }` [INFO] [stdout] d2235fcd4baa0a64aa399826d3c3b1beee759678c64be9ae01a480d4c6bdefb6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c188b655072b3f571380cc3af8d5497298ffa66dcb127cd6eae13b1d991402a7 [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" "c188b655072b3f571380cc3af8d5497298ffa66dcb127cd6eae13b1d991402a7", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling typenum v1.13.0 [INFO] [stderr] Compiling cc v1.0.69 [INFO] [stderr] Compiling semver v1.0.4 [INFO] [stderr] Compiling pin-project-internal v0.4.28 [INFO] [stderr] Compiling shlex v1.1.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling tokio v1.10.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling rustc_version v0.4.0 [INFO] [stderr] Compiling openssl-sys v0.9.66 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling rusoto_core v0.47.0 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling openssl v0.10.36 [INFO] [stderr] Compiling native-tls v0.2.8 [INFO] [stderr] Compiling digest v0.9.0 [INFO] [stderr] Compiling block-buffer v0.9.0 [INFO] [stderr] Compiling crypto-mac v0.11.1 [INFO] [stderr] Compiling sha2 v0.9.6 [INFO] [stderr] Compiling md-5 v0.9.1 [INFO] [stderr] Compiling hmac v0.11.0 [INFO] [stderr] Compiling futures-macro v0.3.17 [INFO] [stderr] Compiling tokio-macros v1.3.0 [INFO] [stderr] Compiling serde_derive v1.0.130 [INFO] [stderr] Compiling async-trait v0.1.51 [INFO] [stderr] Compiling snafu-derive v0.6.10 [INFO] [stderr] Compiling futures-util v0.3.17 [INFO] [stderr] Compiling pin-project v0.4.28 [INFO] [stderr] Compiling snafu v0.6.10 [INFO] [stderr] Compiling serde v1.0.130 [INFO] [stderr] Compiling futures-executor v0.3.17 [INFO] [stderr] Compiling tokio-util v0.6.7 [INFO] [stderr] Compiling tokio-native-tls v0.3.0 [INFO] [stderr] Compiling futures v0.3.17 [INFO] [stderr] Compiling futures-stopwatch v0.3.0 [INFO] [stderr] Compiling futures-retry v0.6.0 [INFO] [stderr] Compiling h2 v0.3.4 [INFO] [stderr] Compiling chrono v0.4.19 [INFO] [stderr] Compiling serde_json v1.0.67 [INFO] [stderr] Compiling hyper v0.14.12 [INFO] [stderr] Compiling rusoto_credential v0.47.0 [INFO] [stderr] Compiling hyper-tls v0.5.0 [INFO] [stderr] Compiling rusoto_signature v0.47.0 [INFO] [stderr] Compiling rusoto_s3 v0.47.0 [INFO] [stderr] Compiling s3-algo v0.5.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 02s [INFO] running `Command { std: "docker" "inspect" "c188b655072b3f571380cc3af8d5497298ffa66dcb127cd6eae13b1d991402a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c188b655072b3f571380cc3af8d5497298ffa66dcb127cd6eae13b1d991402a7", kill_on_drop: false }` [INFO] [stdout] c188b655072b3f571380cc3af8d5497298ffa66dcb127cd6eae13b1d991402a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f722d25451b203ed924d12e5df4b09441a2b07ecff755467dbea26a7dbb0f4e6 [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" "f722d25451b203ed924d12e5df4b09441a2b07ecff755467dbea26a7dbb0f4e6", kill_on_drop: false }` [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling multi-default-trait-impl v0.1.2 [INFO] [stderr] Compiling clap v2.33.3 [INFO] [stderr] Compiling tempdir v0.3.7 [INFO] [stderr] Compiling s3-algo v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: a value of type `std::string::String` cannot be built from an iterator over elements of type `u8` [INFO] [stdout] --> src/test.rs:31:10 [INFO] [stdout] | [INFO] [stdout] 31 | .collect::() [INFO] [stdout] | ^^^^^^^ value of type `std::string::String` cannot be built from `std::iter::Iterator` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromIterator` is not implemented for `std::string::String` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `s3-algo` due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "f722d25451b203ed924d12e5df4b09441a2b07ecff755467dbea26a7dbb0f4e6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f722d25451b203ed924d12e5df4b09441a2b07ecff755467dbea26a7dbb0f4e6", kill_on_drop: false }` [INFO] [stdout] f722d25451b203ed924d12e5df4b09441a2b07ecff755467dbea26a7dbb0f4e6