[INFO] fetching crate interior_mutability_pointer 0.3.6...
[INFO] checking interior_mutability_pointer-0.3.6 against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] extracting crate interior_mutability_pointer 0.3.6 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate interior_mutability_pointer 0.3.6
[INFO] finished tweaking crates.io crate interior_mutability_pointer 0.3.6
[INFO] tweaked toml for crates.io crate interior_mutability_pointer 0.3.6 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate interior_mutability_pointer 0.3.6 on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9f257607bb70e132b950779e847ab907bc795ea26aaf33253c760df2b4c07b6
[INFO] running `Command { std: "docker" "start" "-a" "e9f257607bb70e132b950779e847ab907bc795ea26aaf33253c760df2b4c07b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9f257607bb70e132b950779e847ab907bc795ea26aaf33253c760df2b4c07b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9f257607bb70e132b950779e847ab907bc795ea26aaf33253c760df2b4c07b6", kill_on_drop: false }`
[INFO] [stdout] e9f257607bb70e132b950779e847ab907bc795ea26aaf33253c760df2b4c07b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dc731bedd4cb3969ab640bec9a470701bd1a8e2ea081d109ec04f70d4cb785f
[INFO] running `Command { std: "docker" "start" "-a" "4dc731bedd4cb3969ab640bec9a470701bd1a8e2ea081d109ec04f70d4cb785f", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Checking interior_mutability_pointer v0.3.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Animal` is never used
[INFO] [stdout]   --> src/tests.rs:55:11
[INFO] [stdout]    |
[INFO] [stdout] 55 |     trait Animal {
[INFO] [stdout]    |           ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Sheep` is never constructed
[INFO] [stdout]   --> src/tests.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     struct Sheep {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Dog` is never constructed
[INFO] [stdout]   --> src/tests.rs:80:12
[INFO] [stdout]    |
[INFO] [stdout] 80 |     struct Dog {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NonCloneable` is never constructed
[INFO] [stdout]    --> src/tests.rs:159:12
[INFO] [stdout]     |
[INFO] [stdout] 159 |     struct NonCloneable {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/imp_impls.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let b = other.deref();
[INFO] [stdout]    |                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `T` does not implement `Deref`, so calling `deref` on `&T` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/imp_impls.rs:18:26
[INFO] [stdout]    |
[INFO] [stdout] 18 |             let b = other.deref();
[INFO] [stdout]    |                          ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `T` does not implement `Deref`, so calling `deref` on `&T` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "4dc731bedd4cb3969ab640bec9a470701bd1a8e2ea081d109ec04f70d4cb785f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc731bedd4cb3969ab640bec9a470701bd1a8e2ea081d109ec04f70d4cb785f", kill_on_drop: false }`
[INFO] [stdout] 4dc731bedd4cb3969ab640bec9a470701bd1a8e2ea081d109ec04f70d4cb785f
