[INFO] cloning repository https://github.com/wycats/salsa-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wycats/salsa-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fsalsa-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fsalsa-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1829f87e55653290a993f64e4a55559ca3d232dc
[INFO] checking wycats/salsa-examples against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwycats%2Fsalsa-examples" "/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/wycats/salsa-examples on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wycats/salsa-examples
[INFO] finished tweaking git repo https://github.com/wycats/salsa-examples
[INFO] tweaked toml for git repo https://github.com/wycats/salsa-examples written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wycats/salsa-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded salsa v0.7.0
[INFO] [stderr]   Downloaded derive-new v0.5.5
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f8ddb2e66d014c9ee74e19d4ab9b7855c6b1e8a45dd5c3b7bf30ef86b2df0e7
[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" "7f8ddb2e66d014c9ee74e19d4ab9b7855c6b1e8a45dd5c3b7bf30ef86b2df0e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f8ddb2e66d014c9ee74e19d4ab9b7855c6b1e8a45dd5c3b7bf30ef86b2df0e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f8ddb2e66d014c9ee74e19d4ab9b7855c6b1e8a45dd5c3b7bf30ef86b2df0e7", kill_on_drop: false }`
[INFO] [stdout] 7f8ddb2e66d014c9ee74e19d4ab9b7855c6b1e8a45dd5c3b7bf30ef86b2df0e7
[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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2c674330332a571725cd261594f9f572d24591cf70e183e332ebaaac11d7f597
[INFO] running `Command { std: "docker" "start" "-a" "2c674330332a571725cd261594f9f572d24591cf70e183e332ebaaac11d7f597", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]     Checking stable_deref_trait v1.1.1
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking indexmap v1.0.2
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking owning_ref v0.3.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]     Checking smallvec v0.6.5
[INFO] [stderr]     Checking lock_api v0.1.4
[INFO] [stderr]     Checking rand_core v0.2.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling quote v0.6.9
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]    Compiling derive-new v0.5.5
[INFO] [stderr]     Checking salsa v0.7.0
[INFO] [stderr]     Checking salsa-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `string_by_id` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |             fn string_by_id() for InternedString;
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StringById`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `array_by_id` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |             fn array_by_id() for InternedArray;
[INFO] [stdout]    |                ^^^^^^^^^^^ help: convert the identifier to upper camel case: `ArrayById`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `concat` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |             fn concat() for ConcatString;
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Concat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `string_by_id` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:56:16
[INFO] [stdout]    |
[INFO] [stdout] 56 |             fn string_by_id() for InternedString;
[INFO] [stdout]    |                ^^^^^^^^^^^^ help: convert the identifier to upper camel case: `StringById`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `array_by_id` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:60:16
[INFO] [stdout]    |
[INFO] [stdout] 60 |             fn array_by_id() for InternedArray;
[INFO] [stdout]    |                ^^^^^^^^^^^ help: convert the identifier to upper camel case: `ArrayById`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `concat` should have an upper camel case name
[INFO] [stdout]   --> src/database.rs:61:16
[INFO] [stdout]    |
[INFO] [stdout] 61 |             fn concat() for ConcatString;
[INFO] [stdout]    |                ^^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Concat`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.01s
[INFO] running `Command { std: "docker" "inspect" "2c674330332a571725cd261594f9f572d24591cf70e183e332ebaaac11d7f597", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c674330332a571725cd261594f9f572d24591cf70e183e332ebaaac11d7f597", kill_on_drop: false }`
[INFO] [stdout] 2c674330332a571725cd261594f9f572d24591cf70e183e332ebaaac11d7f597