[INFO] cloning repository https://github.com/tyrchen/rust-training
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tyrchen/rust-training" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyrchen%2Frust-training", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyrchen%2Frust-training'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a80706165d162179167eedabc4d510c9f36e5d2a
[INFO] checking tyrchen/rust-training against try#8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8 for pr-82565
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftyrchen%2Frust-training" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tyrchen/rust-training on toolchain 8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tyrchen/rust-training
[INFO] finished tweaking git repo https://github.com/tyrchen/rust-training
[INFO] tweaked toml for git repo https://github.com/tyrchen/rust-training written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/tyrchen/rust-training already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc3e768c19e81a581b88742e90356d4032230430e74dc20469257b61eb73b428
[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" "fc3e768c19e81a581b88742e90356d4032230430e74dc20469257b61eb73b428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc3e768c19e81a581b88742e90356d4032230430e74dc20469257b61eb73b428", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc3e768c19e81a581b88742e90356d4032230430e74dc20469257b61eb73b428", kill_on_drop: false }`
[INFO] [stdout] fc3e768c19e81a581b88742e90356d4032230430e74dc20469257b61eb73b428
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+8e3afc79c11f48cb3acd1be5b3b7de98fe3f93a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0654b9dab18e321cd398cbab1a70a6906af46532c5e57d251df526ff6beed9a4
[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" "0654b9dab18e321cd398cbab1a70a6906af46532c5e57d251df526ff6beed9a4", kill_on_drop: false }`
[INFO] [stderr]     Checking demo v0.1.0 (/opt/rustwide/workdir/demo)
[INFO] [stderr]     Checking common_traits v0.1.0 (/opt/rustwide/workdir/common_traits)
[INFO] [stderr]     Checking smart_pointer v0.1.0 (/opt/rustwide/workdir/smart_pointer)
[INFO] [stderr]     Checking enum_test v0.1.0 (/opt/rustwide/workdir/enum_test)
[INFO] [stderr]     Checking basic v0.1.0 (/opt/rustwide/workdir/basic)
[INFO] [stderr]     Checking ds v0.1.0 (/opt/rustwide/workdir/ds)
[INFO] [stderr]     Checking base64_test v0.1.0 (/opt/rustwide/workdir/base64_test)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> ds/src/shape.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |   let shapes: [&Shape<f64>; 3] = [
[INFO] [stdout]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn Shape<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> enum_test/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Result;
[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]   --> ds/src/shape.rs:57:17
[INFO] [stdout]    |
[INFO] [stdout] 57 |   let shapes: [&Shape<f64>; 3] = [
[INFO] [stdout]    |                 ^^^^^^^^^^ help: use `dyn`: `dyn Shape<f64>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> demo/src/adder.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     0.0 => panic!("should not be zero"),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> demo/src/adder.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     0.0 => panic!("should not be zero"),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add`
[INFO] [stdout]   --> demo/src/adder.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn add(a: u32, b: u32) -> u32 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `div`
[INFO] [stdout]   --> demo/src/adder.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn div(a: f64, b: f64) -> f64 {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> enum_test/src/file.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn run(filename: &str) -> Result<String> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Designer`
[INFO] [stdout]  --> ds/src/main.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   Designer,
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Admin`
[INFO] [stdout]   --> ds/src/main.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Admin,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Specialist`
[INFO] [stdout]   --> ds/src/main.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   Specialist,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Designer`
[INFO] [stdout]  --> ds/src/main.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   Designer,
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Admin`
[INFO] [stdout]   --> ds/src/main.rs:10:3
[INFO] [stdout]    |
[INFO] [stdout] 10 |   Admin,
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Specialist`
[INFO] [stdout]   --> ds/src/main.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 11 |   Specialist,
[INFO] [stdout]    |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Result`
[INFO] [stdout]  --> enum_test/src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::Result;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> demo/src/adder.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     0.0 => panic!("should not be zero"),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(illegal_floating_point_literal_pattern)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> enum_test/src/file.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   file.read_to_string(&mut contents);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: floating-point types cannot be used in patterns
[INFO] [stdout]   --> demo/src/adder.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     0.0 => panic!("should not be zero"),
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #41620 <https://github.com/rust-lang/rust/issues/41620>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Admin`
[INFO] [stdout]  --> common_traits/src/dv.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   Admin,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Designer`
[INFO] [stdout]  --> common_traits/src/dv.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Designer,
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Specialist`
[INFO] [stdout]  --> common_traits/src/dv.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Specialist,
[INFO] [stdout]   |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `default_trait`
[INFO] [stdout]   --> common_traits/src/dv.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn default_trait() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CreditCard`
[INFO] [stdout]   --> common_traits/src/main.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   CreditCard(CreditCardInfo),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `process`
[INFO] [stdout]   --> common_traits/src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn process() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_pointer`
[INFO] [stdout]   --> common_traits/src/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn show_pointer(p: Pointer) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy_clone_test`
[INFO] [stdout]   --> common_traits/src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn copy_clone_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `run`
[INFO] [stdout]  --> enum_test/src/file.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub fn run(filename: &str) -> Result<String> {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]  --> enum_test/src/file.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 |   file.read_to_string(&mut contents);
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Admin`
[INFO] [stdout]  --> common_traits/src/dv.rs:5:3
[INFO] [stdout]   |
[INFO] [stdout] 5 |   Admin,
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Designer`
[INFO] [stdout]  --> common_traits/src/dv.rs:6:3
[INFO] [stdout]   |
[INFO] [stdout] 6 |   Designer,
[INFO] [stdout]   |   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Specialist`
[INFO] [stdout]  --> common_traits/src/dv.rs:8:3
[INFO] [stdout]   |
[INFO] [stdout] 8 |   Specialist,
[INFO] [stdout]   |   ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `default_trait`
[INFO] [stdout]   --> common_traits/src/dv.rs:26:8
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub fn default_trait() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `CreditCard`
[INFO] [stdout]   --> common_traits/src/main.rs:16:3
[INFO] [stdout]    |
[INFO] [stdout] 16 |   CreditCard(CreditCardInfo),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `process`
[INFO] [stdout]   --> common_traits/src/main.rs:41:4
[INFO] [stdout]    |
[INFO] [stdout] 41 | fn process() {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `show_pointer`
[INFO] [stdout]   --> common_traits/src/main.rs:73:4
[INFO] [stdout]    |
[INFO] [stdout] 73 | fn show_pointer(p: Pointer) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `copy_clone_test`
[INFO] [stdout]   --> common_traits/src/main.rs:77:4
[INFO] [stdout]    |
[INFO] [stdout] 77 | fn copy_clone_test() {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.70s
[INFO] running `Command { std: "docker" "inspect" "0654b9dab18e321cd398cbab1a70a6906af46532c5e57d251df526ff6beed9a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0654b9dab18e321cd398cbab1a70a6906af46532c5e57d251df526ff6beed9a4", kill_on_drop: false }`
[INFO] [stdout] 0654b9dab18e321cd398cbab1a70a6906af46532c5e57d251df526ff6beed9a4