[INFO] fetching crate slipstream 0.1.0...
[INFO] checking slipstream-0.1.0 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate slipstream 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate slipstream 0.1.0 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slipstream 0.1.0
[INFO] finished tweaking crates.io crate slipstream 0.1.0
[INFO] tweaked toml for crates.io crate slipstream 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate slipstream 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.28
[INFO] [stderr]   Downloaded multiversion v0.5.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "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] f3c35ba46dabdc5a6130f8aab76ef7f6fb9684f7e8cc21f1e71c04437a34788e
[INFO] running `Command { std: "docker" "start" "-a" "f3c35ba46dabdc5a6130f8aab76ef7f6fb9684f7e8cc21f1e71c04437a34788e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3c35ba46dabdc5a6130f8aab76ef7f6fb9684f7e8cc21f1e71c04437a34788e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3c35ba46dabdc5a6130f8aab76ef7f6fb9684f7e8cc21f1e71c04437a34788e", kill_on_drop: false }`
[INFO] [stdout] f3c35ba46dabdc5a6130f8aab76ef7f6fb9684f7e8cc21f1e71c04437a34788e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9cbb09aa95edfccc304fa1df0d7192e0b6801a058557fb0aa33c2b74760bc48a
[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" "9cbb09aa95edfccc304fa1df0d7192e0b6801a058557fb0aa33c2b74760bc48a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.17
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.28
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]     Checking unicode-xid v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling pulldown-cmark v0.7.1
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking bit-set v0.5.2
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling unicase v2.6.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking quote v1.0.6
[INFO] [stderr]     Checking generic-array v0.14.1
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking slipstream v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking proptest v0.9.6
[INFO] [stderr]     Checking version-sync v0.9.0
[INFO] [stderr]    Compiling multiversion v0.5.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.26s
[INFO] running `Command { std: "docker" "inspect" "9cbb09aa95edfccc304fa1df0d7192e0b6801a058557fb0aa33c2b74760bc48a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cbb09aa95edfccc304fa1df0d7192e0b6801a058557fb0aa33c2b74760bc48a", kill_on_drop: false }`
[INFO] [stdout] 9cbb09aa95edfccc304fa1df0d7192e0b6801a058557fb0aa33c2b74760bc48a