[INFO] fetching crate s3du 1.1.0...
[INFO] testing s3du-1.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate s3du 1.1.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate s3du 1.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate s3du 1.1.0
[INFO] finished tweaking crates.io crate s3du 1.1.0
[INFO] tweaked toml for crates.io crate s3du 1.1.0 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] crate crates.io crate s3du 1.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fad21047c8cd01d15058c0dc163614e7bd8b56af8199c5dda2c450d11ece0f92
[INFO] running `Command { std: "docker" "start" "-a" "fad21047c8cd01d15058c0dc163614e7bd8b56af8199c5dda2c450d11ece0f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fad21047c8cd01d15058c0dc163614e7bd8b56af8199c5dda2c450d11ece0f92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fad21047c8cd01d15058c0dc163614e7bd8b56af8199c5dda2c450d11ece0f92", kill_on_drop: false }`
[INFO] [stdout] fad21047c8cd01d15058c0dc163614e7bd8b56af8199c5dda2c450d11ece0f92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e0b806161c8ff6b3f750ec13a3320d679b897b7527f1338d0986b1a9734014d
[INFO] running `Command { std: "docker" "start" "-a" "2e0b806161c8ff6b3f750ec13a3320d679b897b7527f1338d0986b1a9734014d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling cc v1.0.68
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling futures-sink v0.3.15
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling slab v0.4.3
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-io v0.3.15
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling httparse v1.4.1
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling async-trait v0.1.50
[INFO] [stderr]    Compiling httpdate v1.0.1
[INFO] [stderr]    Compiling const_fn v0.4.8
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling cpufeatures v0.1.4
[INFO] [stderr]    Compiling opaque-debug v0.3.0
[INFO] [stderr]    Compiling zeroize v1.3.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling openssl-probe v0.1.4
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling humansize v1.1.1
[INFO] [stderr]    Compiling tracing-core v0.1.18
[INFO] [stderr]    Compiling unicode-bidi v0.3.5
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling tokio v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling standback v0.2.17
[INFO] [stderr]    Compiling time v0.2.26
[INFO] [stderr]    Compiling tinyvec v1.2.0
[INFO] [stderr]    Compiling http v0.2.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling socket2 v0.4.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr] error: could not compile `cc`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name cc --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cc-1.0.68/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=91af19ea0f09d712 -C extra-filename=-91af19ea0f09d712 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2e0b806161c8ff6b3f750ec13a3320d679b897b7527f1338d0986b1a9734014d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e0b806161c8ff6b3f750ec13a3320d679b897b7527f1338d0986b1a9734014d", kill_on_drop: false }`
[INFO] [stdout] 2e0b806161c8ff6b3f750ec13a3320d679b897b7527f1338d0986b1a9734014d