[INFO] cloning repository https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebkalderon/merkle-tree-nix-store-thing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 845aec414cb46ae26b2564a62412cacb06566cd5
[INFO] checking ebkalderon/merkle-tree-nix-store-thing against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febkalderon%2Fmerkle-tree-nix-store-thing" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] finished tweaking git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing
[INFO] tweaked toml for git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/ebkalderon/merkle-tree-nix-store-thing already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b592c5edaf9f8cd0a471d3d2ebaab1a033426825d5e02008c68a6c25cd45403
[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" "7b592c5edaf9f8cd0a471d3d2ebaab1a033426825d5e02008c68a6c25cd45403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b592c5edaf9f8cd0a471d3d2ebaab1a033426825d5e02008c68a6c25cd45403", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b592c5edaf9f8cd0a471d3d2ebaab1a033426825d5e02008c68a6c25cd45403", kill_on_drop: false }`
[INFO] [stdout] 7b592c5edaf9f8cd0a471d3d2ebaab1a033426825d5e02008c68a6c25cd45403
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] feea08f466e5571284e3275646160291e0959412c52660edc5f09d1e545e6a0f
[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" "feea08f466e5571284e3275646160291e0959412c52660edc5f09d1e545e6a0f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling radium v0.5.3
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking futures-sink v0.3.7
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking funty v1.0.1
[INFO] [stderr]     Checking tap v1.0.0
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking pathdiff v0.2.0
[INFO] [stderr]     Checking infer v0.3.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling nom v6.0.1
[INFO] [stderr]    Compiling tokio v0.3.3
[INFO] [stderr]     Checking futures-task v0.3.7
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]     Checking cached v0.22.0
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking semver-parser v0.10.1
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking filetime v0.2.12
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking bitvec v0.19.4
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling pin-project-internal v1.0.1
[INFO] [stderr]    Compiling futures-macro v0.3.7
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]     Checking scroll v0.10.2
[INFO] [stderr]     Checking goblin v0.3.0
[INFO] [stderr]     Checking pin-project v1.0.1
[INFO] [stderr]     Checking futures-util v0.3.7
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking futures-executor v0.3.7
[INFO] [stderr]     Checking futures v0.3.7
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking smol_str v0.1.17
[INFO] [stderr]     Checking hex v0.4.2
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]     Checking foo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: maybe a missing crate `Arch`?
[INFO] [stdout]    --> src/object/platform.rs:52:17
[INFO] [stdout]     |
[INFO] [stdout] 52  |         $crate::Arch::X86_64
[INFO] [stdout]     |                 ^^^^ maybe a missing crate `Arch`?
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/object/pack.rs:225:38
[INFO] [stdout]     |
[INFO] [stdout] 225 |     const PACKAGE_SYSTEM: Platform = platform!(x86_64-linux-gnu);
[INFO] [stdout]     |                                      --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: maybe a missing crate `Env`?
[INFO] [stdout]    --> src/object/platform.rs:58:35
[INFO] [stdout]     |
[INFO] [stdout] 58  |         $crate::Os::Linux($crate::Env::Gnu)
[INFO] [stdout]     |                                   ^^^ maybe a missing crate `Env`?
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/object/pack.rs:225:38
[INFO] [stdout]     |
[INFO] [stdout] 225 |     const PACKAGE_SYSTEM: Platform = platform!(x86_64-linux-gnu);
[INFO] [stdout]     |                                      --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: maybe a missing crate `Os`?
[INFO] [stdout]    --> src/object/platform.rs:58:17
[INFO] [stdout]     |
[INFO] [stdout] 58  |         $crate::Os::Linux($crate::Env::Gnu)
[INFO] [stdout]     |                 ^^ not found in `$crate`
[INFO] [stdout]     | 
[INFO] [stdout]    ::: src/object/pack.rs:225:38
[INFO] [stdout]     |
[INFO] [stdout] 225 |     const PACKAGE_SYSTEM: Platform = platform!(x86_64-linux-gnu);
[INFO] [stdout]     |                                      --------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]     |
[INFO] [stdout] 217 |     use crate::platform::Os;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PATCHELF_BIN`
[INFO] [stdout]   --> src/install.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | const PATCHELF_BIN: &str = "patchelf";
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `install_path`
[INFO] [stdout]   --> src/install.rs:34:19
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub(crate) fn install_path(&mut self, out_dir: &Path, spec: &Spec) -> anyhow::Result<ObjectId> {
[INFO] [stdout]    |                   ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_tree`
[INFO] [stdout]   --> src/install.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn build_tree<B>(
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `make_content_addressed`
[INFO] [stdout]    --> src/install.rs:169:4
[INFO] [stdout]     |
[INFO] [stdout] 169 | fn make_content_addressed(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_elf_rpaths_with_prefix`
[INFO] [stdout]    --> src/install.rs:221:4
[INFO] [stdout]     |
[INFO] [stdout] 221 | fn patch_elf_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `patch_mach_rpaths_with_prefix`
[INFO] [stdout]    --> src/install.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn patch_mach_rpaths_with_prefix(prefix: &Path, executable: &Path) -> anyhow::Result<()> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/object/reference.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |     pub fn new(inner: W, pattern: &Path, replace: &Path) -> io::Result<Self> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `into_inner`
[INFO] [stdout]   --> src/object/reference.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn into_inner(mut self) -> io::Result<(W, Offsets)> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `foo`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "feea08f466e5571284e3275646160291e0959412c52660edc5f09d1e545e6a0f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "feea08f466e5571284e3275646160291e0959412c52660edc5f09d1e545e6a0f", kill_on_drop: false }`
[INFO] [stdout] feea08f466e5571284e3275646160291e0959412c52660edc5f09d1e545e6a0f