[INFO] cloning repository https://github.com/zl03jsj/rust-learnning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zl03jsj/rust-learnning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzl03jsj%2Frust-learnning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzl03jsj%2Frust-learnning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a73f788e0f1ff1332f704200eef12759d731090
[INFO] testing zl03jsj/rust-learnning against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzl03jsj%2Frust-learnning" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zl03jsj/rust-learnning on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zl03jsj/rust-learnning
[INFO] finished tweaking git repo https://github.com/zl03jsj/rust-learnning
[INFO] tweaked toml for git repo https://github.com/zl03jsj/rust-learnning written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/zl03jsj/rust-learnning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0796e0ab6ffb481f0b6371c04ec198736eaa897fe06de7e03164ce5d839b882
[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" "e0796e0ab6ffb481f0b6371c04ec198736eaa897fe06de7e03164ce5d839b882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0796e0ab6ffb481f0b6371c04ec198736eaa897fe06de7e03164ce5d839b882", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0796e0ab6ffb481f0b6371c04ec198736eaa897fe06de7e03164ce5d839b882", kill_on_drop: false }`
[INFO] [stdout] e0796e0ab6ffb481f0b6371c04ec198736eaa897fe06de7e03164ce5d839b882
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84ca880bd59d990f5aefdbb6dcd6a8d66de62b5afe5ad7c1a005e62277256841
[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" "84ca880bd59d990f5aefdbb6dcd6a8d66de62b5afe5ad7c1a005e62277256841", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.56s
[INFO] running `Command { std: "docker" "inspect" "84ca880bd59d990f5aefdbb6dcd6a8d66de62b5afe5ad7c1a005e62277256841", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ca880bd59d990f5aefdbb6dcd6a8d66de62b5afe5ad7c1a005e62277256841", kill_on_drop: false }`
[INFO] [stdout] 84ca880bd59d990f5aefdbb6dcd6a8d66de62b5afe5ad7c1a005e62277256841
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4d0d33010023d7ec74b2208757574fbde1a2a89b4139f366b1cd287911a84fc
[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" "b4d0d33010023d7ec74b2208757574fbde1a2a89b4139f366b1cd287911a84fc", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_cargo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "b4d0d33010023d7ec74b2208757574fbde1a2a89b4139f366b1cd287911a84fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4d0d33010023d7ec74b2208757574fbde1a2a89b4139f366b1cd287911a84fc", kill_on_drop: false }`
[INFO] [stdout] b4d0d33010023d7ec74b2208757574fbde1a2a89b4139f366b1cd287911a84fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f892f92122f8fafec635db9ec4b1342eaad61b4426c751896c4af40adc63a3c
[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" "8f892f92122f8fafec635db9ec4b1342eaad61b4426c751896c4af40adc63a3c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_cargo-8df701b90c9c57fb)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::run ... ignored
[INFO] [stdout] test tests::test_add ... ignored
[INFO] [stdout] test tests::test_search_sensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 2 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_cargo-0357704b21b2ea99)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests hello_cargo
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/generics/mod.rs - generics::longest (line 68) ... FAILED
[INFO] [stdout] test src/generics/mod.rs - generics::test_lifetime (line 108) ... FAILED
[INFO] [stdout] test src/generics/trait.rs - generics::r#trait::notify_v1 (line 60) ... FAILED
[INFO] [stdout] test src/generics/trait.rs - generics::r#trait::test_trait (line 72) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/generics/mod.rs - generics::longest (line 68) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]  --> src/generics/mod.rs:70:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if x.len() > y.len() {
[INFO] [stdout]   |        ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]  --> src/generics/mod.rs:70:18
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if x.len() > y.len() {
[INFO] [stdout]   |                  ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `x` in this scope
[INFO] [stdout]  --> src/generics/mod.rs:71:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |         x
[INFO] [stdout]   |         ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]  --> src/generics/mod.rs:73:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |         y
[INFO] [stdout]   |         ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0106]: missing lifetime specifier
[INFO] [stdout]  --> src/generics/mod.rs:69:39
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn longest_str(s1 :&str, s2 :&str) -> &str {
[INFO] [stdout]   |                    ----      ----     ^ expected named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from `s1` or `s2`
[INFO] [stdout] help: consider introducing a named lifetime parameter
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn longest_str<'a>(s1 :&'a str, s2 :&'a str) -> &'a str {
[INFO] [stdout]   |               ++++      ++           ++          ++
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0106, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0106`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/generics/mod.rs - generics::test_lifetime (line 108) stdout ----
[INFO] [stdout] error[E0425]: cannot find function `longest` in this scope
[INFO] [stdout]  --> src/generics/mod.rs:113:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     result = longest(string1.as_str(), string2.as_str());
[INFO] [stdout]   |              ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/generics/trait.rs - generics::r#trait::notify_v1 (line 60) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `Summary` in this scope
[INFO] [stdout]  --> src/generics/trait.rs:61:18
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn notify<T: Summary>(item: &T, item1: &T) {}
[INFO] [stdout]   |                  ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/generics/trait.rs - generics::r#trait::test_trait (line 72) stdout ----
[INFO] [stdout] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `following`
[INFO] [stdout]  --> src/generics/trait.rs:78:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | Or following:
[INFO] [stdout]   |    ^^^^^^^^^ expected one of 8 possible tokens
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Summary` in this scope
[INFO] [stdout]  --> src/generics/trait.rs:74:9
[INFO] [stdout]   |
[INFO] [stdout] 4 | where T:Summary + Display {
[INFO] [stdout]   |         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Display` in this scope
[INFO] [stdout]  --> src/generics/trait.rs:74:19
[INFO] [stdout]   |
[INFO] [stdout] 4 | where T:Summary + Display {
[INFO] [stdout]   |                   ^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::fmt::Display;
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::fmt::Display;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/generics/mod.rs - generics::longest (line 68)
[INFO] [stdout]     src/generics/mod.rs - generics::test_lifetime (line 108)
[INFO] [stdout]     src/generics/trait.rs - generics::r#trait::notify_v1 (line 60)
[INFO] [stdout]     src/generics/trait.rs - generics::r#trait::test_trait (line 72)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "8f892f92122f8fafec635db9ec4b1342eaad61b4426c751896c4af40adc63a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f892f92122f8fafec635db9ec4b1342eaad61b4426c751896c4af40adc63a3c", kill_on_drop: false }`
[INFO] [stdout] 8f892f92122f8fafec635db9ec4b1342eaad61b4426c751896c4af40adc63a3c