[INFO] fetching crate ssz_rs 0.9.0...
[INFO] testing ssz_rs-0.9.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate ssz_rs 0.9.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate ssz_rs 0.9.0
[INFO] finished tweaking crates.io crate ssz_rs 0.9.0
[INFO] tweaked toml for crates.io crate ssz_rs 0.9.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ssz_rs 0.9.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ssz_rs 0.9.0 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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc6288cca87f898c60465f841623bc6ccff343efab7f25ae6c8393a376417250
[INFO] running `Command { std: "docker" "start" "-a" "fc6288cca87f898c60465f841623bc6ccff343efab7f25ae6c8393a376417250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc6288cca87f898c60465f841623bc6ccff343efab7f25ae6c8393a376417250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc6288cca87f898c60465f841623bc6ccff343efab7f25ae6c8393a376417250", kill_on_drop: false }`
[INFO] [stdout] fc6288cca87f898c60465f841623bc6ccff343efab7f25ae6c8393a376417250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1b656115e7cb4efb1cfe8415dfd1b1246d1027d48e0cbd8254f882d78c013ccc
[INFO] running `Command { std: "docker" "start" "-a" "1b656115e7cb4efb1cfe8415dfd1b1246d1027d48e0cbd8254f882d78c013ccc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.63
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde v1.0.167
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling sha2 v0.9.9
[INFO] [stderr]    Compiling syn v2.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ssz_rs v0.9.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.167
[INFO] [stderr]    Compiling ssz_rs_derive v0.9.0
[INFO] [stdout] warning: unused imports: `IterMut` and `iter::Enumerate`
[INFO] [stdout]   --> src/lib.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |             slice::{IterMut, SliceIndex},
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout] 72 |         },
[INFO] [stdout] 73 |         iter::Enumerate,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.54s
[INFO] running `Command { std: "docker" "inspect" "1b656115e7cb4efb1cfe8415dfd1b1246d1027d48e0cbd8254f882d78c013ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b656115e7cb4efb1cfe8415dfd1b1246d1027d48e0cbd8254f882d78c013ccc", kill_on_drop: false }`
[INFO] [stdout] 1b656115e7cb4efb1cfe8415dfd1b1246d1027d48e0cbd8254f882d78c013ccc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f55ff3d5e54d802630ce9e0d5e629d9c1a3a4bf69909b1daec5a522c5d5ec288
[INFO] running `Command { std: "docker" "start" "-a" "f55ff3d5e54d802630ce9e0d5e629d9c1a3a4bf69909b1daec5a522c5d5ec288", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.167
[INFO] [stderr]    Compiling serde_json v1.0.100
[INFO] [stderr]    Compiling snap v1.1.0
[INFO] [stderr]    Compiling ryu v1.0.14
[INFO] [stderr]    Compiling itoa v1.0.8
[INFO] [stderr]    Compiling project-root v0.2.2
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]    Compiling ssz_rs v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IterMut` and `iter::Enumerate`
[INFO] [stdout]   --> src/lib.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |             slice::{IterMut, SliceIndex},
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout] 72 |         },
[INFO] [stdout] 73 |         iter::Enumerate,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IterMut` and `iter::Enumerate`
[INFO] [stdout]   --> src/lib.rs:71:21
[INFO] [stdout]    |
[INFO] [stdout] 71 |             slice::{IterMut, SliceIndex},
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout] 72 |         },
[INFO] [stdout] 73 |         iter::Enumerate,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SingleFieldTestStruct` is never constructed
[INFO] [stdout]  --> examples/another_container.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct SingleFieldTestStruct {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `SmallTestStruct` is never constructed
[INFO] [stdout]  --> examples/another_container.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct SmallTestStruct {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 48.57s
[INFO] running `Command { std: "docker" "inspect" "f55ff3d5e54d802630ce9e0d5e629d9c1a3a4bf69909b1daec5a522c5d5ec288", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f55ff3d5e54d802630ce9e0d5e629d9c1a3a4bf69909b1daec5a522c5d5ec288", kill_on_drop: false }`
[INFO] [stdout] f55ff3d5e54d802630ce9e0d5e629d9c1a3a4bf69909b1daec5a522c5d5ec288
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 08c7bd8e476a9b59cd65688e303143ef53b8f6c410e349d77ff6ef21ef8be46f
[INFO] running `Command { std: "docker" "start" "-a" "08c7bd8e476a9b59cd65688e303143ef53b8f6c410e349d77ff6ef21ef8be46f", kill_on_drop: false }`
[INFO] [stderr] error: failed to download `funty v2.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   unable to get packages from source
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to unpack package `funty v2.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/funty-2.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   Read-only file system (os error 30)
[INFO] running `Command { std: "docker" "inspect" "08c7bd8e476a9b59cd65688e303143ef53b8f6c410e349d77ff6ef21ef8be46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08c7bd8e476a9b59cd65688e303143ef53b8f6c410e349d77ff6ef21ef8be46f", kill_on_drop: false }`
[INFO] [stdout] 08c7bd8e476a9b59cd65688e303143ef53b8f6c410e349d77ff6ef21ef8be46f