[INFO] cloning repository https://github.com/rscarson/enum_v_union_bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rscarson/enum_v_union_bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frscarson%2Fenum_v_union_bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frscarson%2Fenum_v_union_bench'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frscarson%2Fenum_v_union_bench: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/rscarson/enum_v_union_bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rscarson/enum_v_union_bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frscarson%2Fenum_v_union_bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frscarson%2Fenum_v_union_bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 88d25dc91f57adeb0f5bd9cd55923697ab849aec
[INFO] checking rscarson/enum_v_union_bench against master#d2eadb7a94ef8c9deb5137695df33cd1fc5aee92 for pr-137268
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frscarson%2Fenum_v_union_bench" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rscarson/enum_v_union_bench on toolchain d2eadb7a94ef8c9deb5137695df33cd1fc5aee92
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rscarson/enum_v_union_bench
[INFO] finished tweaking git repo https://github.com/rscarson/enum_v_union_bench
[INFO] tweaked toml for git repo https://github.com/rscarson/enum_v_union_bench written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rscarson/enum_v_union_bench 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" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68cf8f00d1aa5d1e6476829b0e25ba93d69931bcb01150e9c6b28c67a2cf8eff
[INFO] running `Command { std: "docker" "start" "-a" "68cf8f00d1aa5d1e6476829b0e25ba93d69931bcb01150e9c6b28c67a2cf8eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68cf8f00d1aa5d1e6476829b0e25ba93d69931bcb01150e9c6b28c67a2cf8eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68cf8f00d1aa5d1e6476829b0e25ba93d69931bcb01150e9c6b28c67a2cf8eff", kill_on_drop: false }`
[INFO] [stdout] 68cf8f00d1aa5d1e6476829b0e25ba93d69931bcb01150e9c6b28c67a2cf8eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+d2eadb7a94ef8c9deb5137695df33cd1fc5aee92" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbd75b3ba44508032422d2c28f0ddf67031b703b382c333c19d1ad493863188c
[INFO] running `Command { std: "docker" "start" "-a" "fbd75b3ba44508032422d2c28f0ddf67031b703b382c333c19d1ad493863188c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling serde v1.0.215
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.133
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]     Checking clap_lex v0.7.3
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking half v2.4.1
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[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking oorandom v11.1.4
[INFO] [stderr]     Checking once_cell v1.20.2
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking enum_perf v0.1.0 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking ciborium-ll v0.2.2
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[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking crossbeam-deque v0.8.5
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[INFO] [stdout] warning: variant `Str` is never constructed
[INFO] [stdout]  --> benches/e_v_u.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | enum EnumVersion<'a> {
[INFO] [stdout]   |      ----------- variant in this enum
[INFO] [stdout] 7 |     Path(&'a Path),
[INFO] [stdout] 8 |     Str(&'a str),
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `EnumVersion` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.15s
[INFO] running `Command { std: "docker" "inspect" "fbd75b3ba44508032422d2c28f0ddf67031b703b382c333c19d1ad493863188c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbd75b3ba44508032422d2c28f0ddf67031b703b382c333c19d1ad493863188c", kill_on_drop: false }`
[INFO] [stdout] fbd75b3ba44508032422d2c28f0ddf67031b703b382c333c19d1ad493863188c