[INFO] fetching crate xv 0.1.1...
[INFO] checking xv-0.1.1 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate xv 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate xv 0.1.1 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate xv 0.1.1
[INFO] finished tweaking crates.io crate xv 0.1.1
[INFO] tweaked toml for crates.io crate xv 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "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] 2c73878034a63b1aeb88a6cc66307efdf2b5de85e01343366a0077514a78ecdc
[INFO] running `Command { std: "docker" "start" "-a" "2c73878034a63b1aeb88a6cc66307efdf2b5de85e01343366a0077514a78ecdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c73878034a63b1aeb88a6cc66307efdf2b5de85e01343366a0077514a78ecdc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c73878034a63b1aeb88a6cc66307efdf2b5de85e01343366a0077514a78ecdc", kill_on_drop: false }`
[INFO] [stdout] 2c73878034a63b1aeb88a6cc66307efdf2b5de85e01343366a0077514a78ecdc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 75d77e23fc34014795c9ceff3703967ce3f249388a08ca0eea2d1963bc0afa38
[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" "75d77e23fc34014795c9ceff3703967ce3f249388a08ca0eea2d1963bc0afa38", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling cc v1.0.61
[INFO] [stderr]    Compiling pkg-config v0.3.18
[INFO] [stderr]     Checking array-macro v1.0.3
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking hashbrown v0.3.1
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking enum-map-internals v0.1.3
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking owning_ref v0.4.1
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking rmp v0.8.9
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rmp-serde v0.13.7
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling enum-map-derive v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking enum-map v0.5.0
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling enumset_derive v0.4.4
[INFO] [stderr]     Checking enumset v0.4.5
[INFO] [stderr]     Checking cursive v0.12.0
[INFO] [stderr]     Checking xv v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hex_reader.rs:148:51
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn visit_row_offsets(&self, visitor: &mut OffsetsVisitor) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn OffsetsVisitor`
[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/hex_reader.rs:173:43
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn visit_hex(&self, visitor: &mut HexVisitor) {
[INFO] [stdout]     |                                           ^^^^^^^^^^ help: use `dyn`: `dyn HexVisitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/hex_reader.rs:148:51
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn visit_row_offsets(&self, visitor: &mut OffsetsVisitor) {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^ help: use `dyn`: `dyn OffsetsVisitor`
[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/hex_reader.rs:173:43
[INFO] [stdout]     |
[INFO] [stdout] 173 |     pub fn visit_hex(&self, visitor: &mut HexVisitor) {
[INFO] [stdout]     |                                           ^^^^^^^^^^ help: use `dyn`: `dyn HexVisitor`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 57.83s
[INFO] running `Command { std: "docker" "inspect" "75d77e23fc34014795c9ceff3703967ce3f249388a08ca0eea2d1963bc0afa38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75d77e23fc34014795c9ceff3703967ce3f249388a08ca0eea2d1963bc0afa38", kill_on_drop: false }`
[INFO] [stdout] 75d77e23fc34014795c9ceff3703967ce3f249388a08ca0eea2d1963bc0afa38