[INFO] fetching crate ezra 0.1.3...
[INFO] checking ezra-0.1.3 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate ezra 0.1.3 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ezra 0.1.3 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 ezra 0.1.3
[INFO] finished tweaking crates.io crate ezra 0.1.3
[INFO] tweaked toml for crates.io crate ezra 0.1.3 written to /workspace/builds/worker-2/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] [stderr]     Blocking waiting for file lock on package cache
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 1944255f66155169d3364458f1fb15efe0fb619515602d5dedf15c98aaefeee8
[INFO] running `Command { std: "docker" "start" "-a" "1944255f66155169d3364458f1fb15efe0fb619515602d5dedf15c98aaefeee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1944255f66155169d3364458f1fb15efe0fb619515602d5dedf15c98aaefeee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1944255f66155169d3364458f1fb15efe0fb619515602d5dedf15c98aaefeee8", kill_on_drop: false }`
[INFO] [stdout] 1944255f66155169d3364458f1fb15efe0fb619515602d5dedf15c98aaefeee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 110140ca720070b1d87e5128058bee5df7270851a4b894461586fbad28bfcd69
[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" "110140ca720070b1d87e5128058bee5df7270851a4b894461586fbad28bfcd69", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.79
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking ezra v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `HashMap` is imported redundantly
[INFO] [stdout]    --> src/dice/dice_collection.rs:421:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::collections::HashMap;
[INFO] [stdout]     |     ------------------------- the item `HashMap` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 421 |         use std::collections::HashMap;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dice/value_die.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     rng: Box<Rng>,          
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn Rng`
[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/dice/value_die.rs:111:46
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn new(vals: Vec<E>, rng: Option<Box<Rng>>) -> Self {
[INFO] [stdout]     |                                              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dice/numeric_die.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |     rng: Box<Rng>,                      
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dice/numeric_die.rs:91:75
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn new(min: usize, step: usize, num_sides: usize, rng: Option<Box<Rng>>) -> Self {
[INFO] [stdout]    |                                                                           ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `HashMap` is imported redundantly
[INFO] [stdout]    --> src/dice/dice_collection.rs:421:13
[INFO] [stdout]     |
[INFO] [stdout] 10  | use std::collections::HashMap;
[INFO] [stdout]     |     ------------------------- the item `HashMap` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 421 |         use std::collections::HashMap;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dice/value_die.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     rng: Box<Rng>,          
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn Rng`
[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/dice/value_die.rs:111:46
[INFO] [stdout]     |
[INFO] [stdout] 111 |     pub fn new(vals: Vec<E>, rng: Option<Box<Rng>>) -> Self {
[INFO] [stdout]     |                                              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dice/numeric_die.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |     rng: Box<Rng>,                      
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/dice/numeric_die.rs:91:75
[INFO] [stdout]    |
[INFO] [stdout] 91 |     pub fn new(min: usize, step: usize, num_sides: usize, rng: Option<Box<Rng>>) -> Self {
[INFO] [stdout]    |                                                                           ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.43s
[INFO] running `Command { std: "docker" "inspect" "110140ca720070b1d87e5128058bee5df7270851a4b894461586fbad28bfcd69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "110140ca720070b1d87e5128058bee5df7270851a4b894461586fbad28bfcd69", kill_on_drop: false }`
[INFO] [stdout] 110140ca720070b1d87e5128058bee5df7270851a4b894461586fbad28bfcd69