[INFO] fetching crate convert_case 0.4.0...
[INFO] checking convert_case-0.4.0 against try#05c8870159e4f328578a970e125aa76d24f03b56 for pr-76219
[INFO] extracting crate convert_case 0.4.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate convert_case 0.4.0 on toolchain 05c8870159e4f328578a970e125aa76d24f03b56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate convert_case 0.4.0
[INFO] finished tweaking crates.io crate convert_case 0.4.0
[INFO] tweaked toml for crates.io crate convert_case 0.4.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+05c8870159e4f328578a970e125aa76d24f03b56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.2.1
[INFO] [stderr]   Downloaded quote v1.0.7
[INFO] [stderr]   Downloaded rand_hc v0.2.0
[INFO] [stderr]   Downloaded strum_macros v0.18.0
[INFO] [stderr]   Downloaded wasi v0.9.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rand_chacha v0.2.2
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.9
[INFO] [stderr]   Downloaded heck v0.3.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.20
[INFO] [stderr]   Downloaded unicode-segmentation v1.6.0
[INFO] [stderr]   Downloaded rand v0.7.3
[INFO] [stderr]   Downloaded rand_core v0.5.1
[INFO] [stderr]   Downloaded libc v0.2.76
[INFO] [stderr]   Downloaded strum v0.18.0
[INFO] [stderr]   Downloaded syn v1.0.40
[INFO] [stderr]   Downloaded getrandom v0.1.14
[INFO] [stderr]   Downloaded cfg-if v0.1.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f89f2fbe4c5fecb9f1ecea46ba7dbfd52dd851b64d0873953aae2b5804d55ede
[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" "f89f2fbe4c5fecb9f1ecea46ba7dbfd52dd851b64d0873953aae2b5804d55ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f89f2fbe4c5fecb9f1ecea46ba7dbfd52dd851b64d0873953aae2b5804d55ede", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89f2fbe4c5fecb9f1ecea46ba7dbfd52dd851b64d0873953aae2b5804d55ede", kill_on_drop: false }`
[INFO] [stdout] f89f2fbe4c5fecb9f1ecea46ba7dbfd52dd851b64d0873953aae2b5804d55ede
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+05c8870159e4f328578a970e125aa76d24f03b56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d647c61a21d337d26f7fe3b42002d9580ee0afd03fd1cce284e725be55b79493
[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" "d647c61a21d337d26f7fe3b42002d9580ee0afd03fd1cce284e725be55b79493", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.20
[INFO] [stderr]     Checking strum v0.18.0
[INFO] [stderr]     Checking convert_case v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling syn v1.0.40
[INFO] [stderr]    Compiling strum_macros v0.18.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.70s
[INFO] running `Command { std: "docker" "inspect" "d647c61a21d337d26f7fe3b42002d9580ee0afd03fd1cce284e725be55b79493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d647c61a21d337d26f7fe3b42002d9580ee0afd03fd1cce284e725be55b79493", kill_on_drop: false }`
[INFO] [stdout] d647c61a21d337d26f7fe3b42002d9580ee0afd03fd1cce284e725be55b79493