[INFO] fetching crate pretty_assertions 0.6.1...
[INFO] checking pretty_assertions-0.6.1 against try#1c5262aa6c045a581fb974488793f09ed51fc498 for pr-78376
[INFO] extracting crate pretty_assertions 0.6.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pretty_assertions 0.6.1 on toolchain 1c5262aa6c045a581fb974488793f09ed51fc498
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pretty_assertions 0.6.1
[INFO] finished tweaking crates.io crate pretty_assertions 0.6.1
[INFO] tweaked toml for crates.io crate pretty_assertions 0.6.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1c5262aa6c045a581fb974488793f09ed51fc498" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8251d71d866ad7b43bbb6f8ecd07ea33d1b6399a51d2cc0d5812246030e5d122
[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" "8251d71d866ad7b43bbb6f8ecd07ea33d1b6399a51d2cc0d5812246030e5d122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8251d71d866ad7b43bbb6f8ecd07ea33d1b6399a51d2cc0d5812246030e5d122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8251d71d866ad7b43bbb6f8ecd07ea33d1b6399a51d2cc0d5812246030e5d122", kill_on_drop: false }`
[INFO] [stdout] 8251d71d866ad7b43bbb6f8ecd07ea33d1b6399a51d2cc0d5812246030e5d122
[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" "+1c5262aa6c045a581fb974488793f09ed51fc498" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77b9ebea725c47fa5e0b1b4e07b6375bf709e8482b471ec9950d98c53d79dc7b
[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" "77b9ebea725c47fa5e0b1b4e07b6375bf709e8482b471ec9950d98c53d79dc7b", kill_on_drop: false }`
[INFO] [stderr]     Checking pretty_assertions v0.6.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/format_changeset.rs:96:35
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn format_replacement(f: &mut fmt::Write, added: &str, removed: &str) -> fmt::Result {
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/format_changeset.rs:96:35
[INFO] [stdout]    |
[INFO] [stdout] 96 | pub fn format_replacement(f: &mut fmt::Write, added: &str, removed: &str) -> fmt::Result {
[INFO] [stdout]    |                                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Write`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "77b9ebea725c47fa5e0b1b4e07b6375bf709e8482b471ec9950d98c53d79dc7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77b9ebea725c47fa5e0b1b4e07b6375bf709e8482b471ec9950d98c53d79dc7b", kill_on_drop: false }`
[INFO] [stdout] 77b9ebea725c47fa5e0b1b4e07b6375bf709e8482b471ec9950d98c53d79dc7b