[INFO] fetching crate mkv_chain 0.3.1...
[INFO] checking mkv_chain-0.3.1 against try#72f88fc4e9458f89516a0b8b0868f3718aec5b47 for pr-74989
[INFO] extracting crate mkv_chain 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mkv_chain 0.3.1 on toolchain 72f88fc4e9458f89516a0b8b0868f3718aec5b47
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mkv_chain 0.3.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mkv_chain 0.3.1
[INFO] tweaked toml for crates.io crate mkv_chain 0.3.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate mkv_chain 0.3.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smallvec v0.6.10
[INFO] [stderr]   Downloaded unicase v2.5.1
[INFO] [stderr]   Downloaded ryu v1.0.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded pulldown-cmark v0.4.1
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] [stderr]   Downloaded unicode-normalization v0.1.8
[INFO] [stderr]   Downloaded semver-parser v0.9.0
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded version-sync v0.8.1
[INFO] [stderr]   Downloaded toml v0.5.3
[INFO] [stderr]   Downloaded bitflags v1.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "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] 3dbd9aa7b98d5e5f64efe827e43d47928bea6f3a14317354cd3be20d1f5c83c6
[INFO] running `Command { std: "docker" "start" "-a" "3dbd9aa7b98d5e5f64efe827e43d47928bea6f3a14317354cd3be20d1f5c83c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3dbd9aa7b98d5e5f64efe827e43d47928bea6f3a14317354cd3be20d1f5c83c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dbd9aa7b98d5e5f64efe827e43d47928bea6f3a14317354cd3be20d1f5c83c6", kill_on_drop: false }`
[INFO] [stdout] 3dbd9aa7b98d5e5f64efe827e43d47928bea6f3a14317354cd3be20d1f5c83c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+72f88fc4e9458f89516a0b8b0868f3718aec5b47" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 73d5fea91a1406a449e5f6df1b07abc94c9180d53a3d5c2be19accbf60127442
[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" "73d5fea91a1406a449e5f6df1b07abc94c9180d53a3d5c2be19accbf60127442", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling pulldown-cmark v0.4.1
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking regex-syntax v0.6.12
[INFO] [stderr]     Checking semver-parser v0.9.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking mkv_chain v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking unicode-normalization v0.1.8
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling unicase v2.5.1
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking toml v0.5.3
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking version-sync v0.8.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.08s
[INFO] running `Command { std: "docker" "inspect" "73d5fea91a1406a449e5f6df1b07abc94c9180d53a3d5c2be19accbf60127442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73d5fea91a1406a449e5f6df1b07abc94c9180d53a3d5c2be19accbf60127442", kill_on_drop: false }`
[INFO] [stdout] 73d5fea91a1406a449e5f6df1b07abc94c9180d53a3d5c2be19accbf60127442
