[INFO] cloning repository https://github.com/swfsql/serde_many
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swfsql/serde_many" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswfsql%2Fserde_many", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswfsql%2Fserde_many'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1da79c528b0948d7c05d07de45ce4526d173757a
[INFO] checking swfsql/serde_many against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswfsql%2Fserde_many" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/swfsql/serde_many on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/swfsql/serde_many
[INFO] finished tweaking git repo https://github.com/swfsql/serde_many
[INFO] tweaked toml for git repo https://github.com/swfsql/serde_many written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/swfsql/serde_many already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/swfsql/serde`
[INFO] [stderr]     Updating git repository `https://github.com/swfsql/serde`
[INFO] [stderr]     Updating git repository `https://github.com/swfsql/json`
[INFO] [stderr]     Updating git repository `https://github.com/swfsql/json`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itoa v0.4.4
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded ryu v1.0.2
[INFO] [stderr]   Downloaded syn v1.0.8
[INFO] [stderr]   Downloaded quote v1.0.2
[INFO] [stderr]   Downloaded unicode-xid v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e11309e2bddf70954593e0cbf50396d84759203653a4dd5f34276b0956181af
[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" "0e11309e2bddf70954593e0cbf50396d84759203653a4dd5f34276b0956181af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e11309e2bddf70954593e0cbf50396d84759203653a4dd5f34276b0956181af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e11309e2bddf70954593e0cbf50396d84759203653a4dd5f34276b0956181af", kill_on_drop: false }`
[INFO] [stdout] 0e11309e2bddf70954593e0cbf50396d84759203653a4dd5f34276b0956181af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d6334537892b1f5ec107901cc53c90c1cca7f823afcc2923ed5c6398e806488
[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" "4d6334537892b1f5ec107901cc53c90c1cca7f823afcc2923ed5c6398e806488", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]    Compiling serde v1.0.102 (https://github.com/swfsql/serde?branch=serde-custom-symbol-2#7a41a374)
[INFO] [stderr]    Compiling serde v1.0.102 (https://github.com/swfsql/serde?branch=serde-custom-symbol#c1836258)
[INFO] [stderr]    Compiling serde_derive v1.0.102 (https://github.com/swfsql/serde?branch=serde-custom-symbol#c1836258)
[INFO] [stderr]    Compiling serde_derive v1.0.102 (https://github.com/swfsql/serde?branch=serde-custom-symbol-2#7a41a374)
[INFO] [stderr]     Checking serde_json v1.0.41 (https://github.com/swfsql/json?branch=serde-custom-symbol#432f334e)
[INFO] [stderr]     Checking serde_json v1.0.41 (https://github.com/swfsql/json?branch=serde-custom-symbol-2#a6520829)
[INFO] [stderr]     Checking serde_many v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant is never used: `s1`
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / const s1: &str = r#"{
[INFO] [stdout] 2 | |     "fallback_for_all": true,
[INFO] [stdout] 3 | |     "serde1_ba": true,
[INFO] [stdout] 4 | |     "c": true
[INFO] [stdout] 5 | | }"#;
[INFO] [stdout]   | |____^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `s2`
[INFO] [stdout]   --> src/lib.rs:7:1
[INFO] [stdout]    |
[INFO] [stdout] 7  | / const s2: &str = r#"{
[INFO] [stdout] 8  | |     "fallback_for_all": true,
[INFO] [stdout] 9  | |     "b": {
[INFO] [stdout] 10 | |         "serde2_ba": true
[INFO] [stdout] 11 | |     },
[INFO] [stdout] 12 | |     "only_for_serde2": true
[INFO] [stdout] 13 | | }"#;
[INFO] [stdout]    | |____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `s1` should have an upper case name
[INFO] [stdout]  --> src/lib.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const s1: &str = r#"{
[INFO] [stdout]   |       ^^ help: convert the identifier to upper case (notice the capitalization): `S1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `s2` should have an upper case name
[INFO] [stdout]  --> src/lib.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const s2: &str = r#"{
[INFO] [stdout]   |       ^^ help: convert the identifier to upper case (notice the capitalization): `S2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `s1` should have an upper case name
[INFO] [stdout]  --> src/lib.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const s1: &str = r#"{
[INFO] [stdout]   |       ^^ help: convert the identifier to upper case (notice the capitalization): `S1`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `s2` should have an upper case name
[INFO] [stdout]  --> src/lib.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const s2: &str = r#"{
[INFO] [stdout]   |       ^^ help: convert the identifier to upper case (notice the capitalization): `S2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.75s
[INFO] running `Command { std: "docker" "inspect" "4d6334537892b1f5ec107901cc53c90c1cca7f823afcc2923ed5c6398e806488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d6334537892b1f5ec107901cc53c90c1cca7f823afcc2923ed5c6398e806488", kill_on_drop: false }`
[INFO] [stdout] 4d6334537892b1f5ec107901cc53c90c1cca7f823afcc2923ed5c6398e806488