[INFO] cloning repository https://github.com/Farzy/rust-fundamentals
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Farzy/rust-fundamentals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarzy%2Frust-fundamentals", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarzy%2Frust-fundamentals'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7a45c07de05652bd8a847c7cb7ac5f5a1520d592
[INFO] checking Farzy/rust-fundamentals against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFarzy%2Frust-fundamentals" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Farzy/rust-fundamentals
[INFO] finished tweaking git repo https://github.com/Farzy/rust-fundamentals
[INFO] tweaked toml for git repo https://github.com/Farzy/rust-fundamentals written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Farzy/rust-fundamentals on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Farzy/rust-fundamentals already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-traits v0.2.16
[INFO] [stderr]   Downloaded aho-corasick v1.1.1
[INFO] [stderr]   Downloaded regex v1.9.6
[INFO] [stderr]   Downloaded regex-automata v0.3.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fe33d51b839d30cb14d592c520de60541f33c1a5455e3e9c877844c98289c455
[INFO] running `Command { std: "docker" "start" "-a" "fe33d51b839d30cb14d592c520de60541f33c1a5455e3e9c877844c98289c455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fe33d51b839d30cb14d592c520de60541f33c1a5455e3e9c877844c98289c455", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe33d51b839d30cb14d592c520de60541f33c1a5455e3e9c877844c98289c455", kill_on_drop: false }`
[INFO] [stdout] fe33d51b839d30cb14d592c520de60541f33c1a5455e3e9c877844c98289c455
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb15d9ad7d7c7ea1f87c5b5eb8b0da0c72a2fd8f54566fca1905b9811755590d
[INFO] running `Command { std: "docker" "start" "-a" "bb15d9ad7d7c7ea1f87c5b5eb8b0da0c72a2fd8f54566fca1905b9811755590d", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking aho-corasick v1.1.1
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]     Checking predicates-core v1.0.6
[INFO] [stderr]     Checking termtree v0.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking difflib v0.4.0
[INFO] [stderr]     Checking predicates-tree v1.0.9
[INFO] [stderr]     Checking fragile v2.0.0
[INFO] [stderr]     Checking downcast v0.11.0
[INFO] [stderr]     Checking mars_calc v0.1.0 (/opt/rustwide/workdir/mars_calc)
[INFO] [stderr]     Checking memory_management v0.1.0 (/opt/rustwide/workdir/memory_management)
[INFO] [stderr]     Checking server v0.1.0 (/opt/rustwide/workdir/server)
[INFO] [stdout] warning: unused import: `Value as QueryStringValue`
[INFO] [stdout]  --> server/src/http/mod.rs:8:37
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use query_string::{QueryString, Value as QueryStringValue};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Value as QueryStringValue`
[INFO] [stdout]  --> server/src/http/mod.rs:8:37
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub use query_string::{QueryString, Value as QueryStringValue};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> server/src/http/query_string.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value> {
[INFO] [stdout]    |                ^^^^^                       ^^^^^^
[INFO] [stdout]    |                |                           ||
[INFO] [stdout]    |                |                           |the same lifetime is hidden here
[INFO] [stdout]    |                |                           the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value<'_>> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> server/src/http/request.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn query_string(&self) -> Option<&QueryString> {
[INFO] [stdout]    |                         ^^^^^            ^^^^^^^^^^^^
[INFO] [stdout]    |                         |                ||
[INFO] [stdout]    |                         |                |the same lifetime is hidden here
[INFO] [stdout]    |                         |                the same lifetime is elided here
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn query_string(&self) -> Option<&QueryString<'_>> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> server/src/http/query_string.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value> {
[INFO] [stdout]    |                ^^^^^                       ^^^^^^
[INFO] [stdout]    |                |                           ||
[INFO] [stdout]    |                |                           |the same lifetime is hidden here
[INFO] [stdout]    |                |                           the same lifetime is elided here
[INFO] [stdout]    |                the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn get(&self, key: &str) -> Option<&Value<'_>> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> server/src/http/request.rs:25:25
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn query_string(&self) -> Option<&QueryString> {
[INFO] [stdout]    |                         ^^^^^            ^^^^^^^^^^^^
[INFO] [stdout]    |                         |                ||
[INFO] [stdout]    |                         |                |the same lifetime is hidden here
[INFO] [stdout]    |                         |                the same lifetime is elided here
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn query_string(&self) -> Option<&QueryString<'_>> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking regex-automata v0.3.9
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir/playground)
[INFO] [stderr]     Checking playground2 v0.1.0 (/opt/rustwide/workdir/playground2)
[INFO] [stdout] warning: the feature `array_windows` has been stable since 1.94.0-nightly and no longer requires an attribute to enable
[INFO] [stdout]  --> playground2/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> playground/src/main.rs:36:26
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn try_create(paragraph: &str) -> Option<S> {
[INFO] [stdout]    |                          ^^^^            ^ the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn try_create(paragraph: &str) -> Option<S<'_>> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> playground/src/main.rs:36:26
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn try_create(paragraph: &str) -> Option<S> {
[INFO] [stdout]    |                          ^^^^            ^ the same lifetime is hidden here
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn try_create(paragraph: &str) -> Option<S<'_>> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `array_windows` has been stable since 1.94.0-nightly and no longer requires an attribute to enable
[INFO] [stdout]  --> playground2/src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(array_windows)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> playground2/src/main.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout] 13 +     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> playground2/src/main.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 |     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout]    |     ---- ^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 13 -     Cons(i32, RefCell<Rc<List>>),
[INFO] [stdout] 13 +     Cons((), RefCell<Rc<List>>),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mockall_derive v0.11.4
[INFO] [stderr]     Checking regex v1.9.6
[INFO] [stderr]     Checking predicates v2.1.5
[INFO] [stderr]     Checking mockall v0.11.4
[INFO] [stderr]     Checking mock v0.1.0 (/opt/rustwide/workdir/mock)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> mock/src/lib.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 |             .returning(|_x| (()));
[INFO] [stdout]    |                             ^  ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -             .returning(|_x| (()));
[INFO] [stdout] 30 +             .returning(|_x| ());
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.94s
[INFO] running `Command { std: "docker" "inspect" "bb15d9ad7d7c7ea1f87c5b5eb8b0da0c72a2fd8f54566fca1905b9811755590d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb15d9ad7d7c7ea1f87c5b5eb8b0da0c72a2fd8f54566fca1905b9811755590d", kill_on_drop: false }`
[INFO] [stdout] bb15d9ad7d7c7ea1f87c5b5eb8b0da0c72a2fd8f54566fca1905b9811755590d
