[INFO] cloning repository https://github.com/aneksteind/MerkleSearchTree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aneksteind/MerkleSearchTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faneksteind%2FMerkleSearchTree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faneksteind%2FMerkleSearchTree'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faneksteind%2FMerkleSearchTree: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/aneksteind/MerkleSearchTree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aneksteind/MerkleSearchTree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faneksteind%2FMerkleSearchTree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faneksteind%2FMerkleSearchTree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 063d3fa244e3d96f57e60bff06491a24900db927
[INFO] checking aneksteind/MerkleSearchTree against master#ba412a6e70ac84641be7764d088acabd0eb3fa39 for pr-145457
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faneksteind%2FMerkleSearchTree" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/aneksteind/MerkleSearchTree
[INFO] finished tweaking git repo https://github.com/aneksteind/MerkleSearchTree
[INFO] tweaked toml for git repo https://github.com/aneksteind/MerkleSearchTree written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/aneksteind/MerkleSearchTree on toolchain ba412a6e70ac84641be7764d088acabd0eb3fa39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/aneksteind/MerkleSearchTree 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" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e9772e9241199663472125d30d14071706ab73fcd918c081578d7bab26a829c
[INFO] running `Command { std: "docker" "start" "-a" "6e9772e9241199663472125d30d14071706ab73fcd918c081578d7bab26a829c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e9772e9241199663472125d30d14071706ab73fcd918c081578d7bab26a829c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9772e9241199663472125d30d14071706ab73fcd918c081578d7bab26a829c", kill_on_drop: false }`
[INFO] [stdout] 6e9772e9241199663472125d30d14071706ab73fcd918c081578d7bab26a829c
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+ba412a6e70ac84641be7764d088acabd0eb3fa39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b45ef875dc97cf13a41d61ae9d95cb00e984a499993340054c53ad59e882cce5
[INFO] running `Command { std: "docker" "start" "-a" "b45ef875dc97cf13a41d61ae9d95cb00e984a499993340054c53ad59e882cce5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]    Compiling libc v0.2.170
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling quote v1.0.39
[INFO] [stderr]    Compiling syn v2.0.99
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking mst v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/store.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> std::collections::hash_map::Iter<Key, Value> {
[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] 83 |     pub fn iter(&self) -> std::collections::hash_map::Iter<'_, Key, Value> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/store.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn iter(&self) -> std::collections::hash_map::Iter<Key, Value> {
[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] 83 |     pub fn iter(&self) -> std::collections::hash_map::Iter<'_, Key, Value> {
[INFO] [stdout]    |                                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.51s
[INFO] running `Command { std: "docker" "inspect" "b45ef875dc97cf13a41d61ae9d95cb00e984a499993340054c53ad59e882cce5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b45ef875dc97cf13a41d61ae9d95cb00e984a499993340054c53ad59e882cce5", kill_on_drop: false }`
[INFO] [stdout] b45ef875dc97cf13a41d61ae9d95cb00e984a499993340054c53ad59e882cce5