[INFO] cloning repository https://github.com/jclulow/festival-of-stress
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jclulow/festival-of-stress" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjclulow%2Ffestival-of-stress", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjclulow%2Ffestival-of-stress'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f68aecfbcd7ffd83b67fe4b36fadfc25fc26e777
[INFO] checking jclulow/festival-of-stress against try#012cd62c9add58ab3910e44c137d87db3ab70f61 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjclulow%2Ffestival-of-stress" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/jclulow/festival-of-stress
[INFO] finished tweaking git repo https://github.com/jclulow/festival-of-stress
[INFO] tweaked toml for git repo https://github.com/jclulow/festival-of-stress written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jclulow/festival-of-stress on toolchain 012cd62c9add58ab3910e44c137d87db3ab70f61
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/jclulow/festival-of-stress 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" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d5bb154ebd87afcceb1ee087ab5ff3026493569e970e4f3f7f0dfa1ef3deff1e
[INFO] running `Command { std: "docker" "start" "-a" "d5bb154ebd87afcceb1ee087ab5ff3026493569e970e4f3f7f0dfa1ef3deff1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d5bb154ebd87afcceb1ee087ab5ff3026493569e970e4f3f7f0dfa1ef3deff1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5bb154ebd87afcceb1ee087ab5ff3026493569e970e4f3f7f0dfa1ef3deff1e", kill_on_drop: false }`
[INFO] [stdout] d5bb154ebd87afcceb1ee087ab5ff3026493569e970e4f3f7f0dfa1ef3deff1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+012cd62c9add58ab3910e44c137d87db3ab70f61" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4005ad8780e87e9eb6a182d2f85b732c46d8281efb7d56e589a40ba87c4489dd
[INFO] running `Command { std: "docker" "start" "-a" "4005ad8780e87e9eb6a182d2f85b732c46d8281efb7d56e589a40ba87c4489dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling slog v2.7.0
[INFO] [stderr]    Compiling serde v1.0.127
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking dirs-sys-next v0.1.2
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking dirs-next v2.0.0
[INFO] [stderr]     Checking term v0.7.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking slog-term v2.8.0
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking jmclib v0.1.0 (https://github.com/jclulow/rust-jmclib#6bd3ef80)
[INFO] [stderr]     Checking stress v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `debug`, `trace`, and `warn`
[INFO] [stdout]  --> src/common.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use slog::{info, warn, error, debug, trace, o, Logger};
[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 import: `Context`
[INFO] [stdout]   --> src/common.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use anyhow::{bail, Result, Context};
[INFO] [stdout]    |                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `command_access` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(command_access)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `trace`, and `warn`
[INFO] [stdout]  --> src/common.rs:9:22
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use slog::{info, warn, error, debug, trace, o, Logger};
[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 import: `Context`
[INFO] [stdout]   --> src/common.rs:10:32
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub use anyhow::{bail, Result, Context};
[INFO] [stdout]    |                                ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `command_access` has been stable since 1.57.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(command_access)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:399:17
[INFO] [stdout]     |
[INFO] [stdout] 399 |             let mut rng = rand_chacha::ChaCha20Rng::from_entropy();
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seeds`
[INFO] [stdout]    --> src/main.rs:382:17
[INFO] [stdout]     |
[INFO] [stdout] 382 |             let seeds = (0..4u64).map(|id| {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_seeds`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/main.rs:399:17
[INFO] [stdout]     |
[INFO] [stdout] 399 |             let mut rng = rand_chacha::ChaCha20Rng::from_entropy();
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plants`
[INFO] [stdout]    --> src/main.rs:400:17
[INFO] [stdout]     |
[INFO] [stdout] 400 |             let plants = (0..PLANT_COUNT).map(|id| {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_plants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `log`, `id`, and `dataset` are never read
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Seed {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 27 |     log: Logger,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     id: u64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 29 |     dataset: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MEGABYTE` is never used
[INFO] [stdout]   --> src/main.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | const MEGABYTE: u64 = KILOBYTE * 1024;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dataset` is never used
[INFO] [stdout]    --> src/main.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl Seed {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn dataset(&self) -> &str {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `parent`, and `dataset` are never read
[INFO] [stdout]    --> src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | struct Plant {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 154 |     log: Logger,
[INFO] [stdout] 155 |     id: u64,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 156 |     parent: String,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 157 |     dataset: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dataset` is never used
[INFO] [stdout]    --> src/main.rs:351:8
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl Plant {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 351 |     fn dataset(&self) -> &str {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZPOOL` is never used
[INFO] [stdout]  --> src/zfs.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const ZPOOL: &str = "/sbin/zpool";
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zpool` is never used
[INFO] [stdout]   --> src/zfs.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn zpool() -> Command {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:399:17
[INFO] [stdout]     |
[INFO] [stdout] 399 |             let mut rng = rand_chacha::ChaCha20Rng::from_entropy();
[INFO] [stdout]     |                 ----^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seeds`
[INFO] [stdout]    --> src/main.rs:382:17
[INFO] [stdout]     |
[INFO] [stdout] 382 |             let seeds = (0..4u64).map(|id| {
[INFO] [stdout]     |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_seeds`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]    --> src/main.rs:399:17
[INFO] [stdout]     |
[INFO] [stdout] 399 |             let mut rng = rand_chacha::ChaCha20Rng::from_entropy();
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `plants`
[INFO] [stdout]    --> src/main.rs:400:17
[INFO] [stdout]     |
[INFO] [stdout] 400 |             let plants = (0..PLANT_COUNT).map(|id| {
[INFO] [stdout]     |                 ^^^^^^ help: if this is intentional, prefix it with an underscore: `_plants`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `log`, `id`, and `dataset` are never read
[INFO] [stdout]   --> src/main.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | struct Seed {
[INFO] [stdout]    |        ---- fields in this struct
[INFO] [stdout] 27 |     log: Logger,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 28 |     id: u64,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 29 |     dataset: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MEGABYTE` is never used
[INFO] [stdout]   --> src/main.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | const MEGABYTE: u64 = KILOBYTE * 1024;
[INFO] [stdout]    |       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dataset` is never used
[INFO] [stdout]    --> src/main.rs:148:8
[INFO] [stdout]     |
[INFO] [stdout]  62 | impl Seed {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 148 |     fn dataset(&self) -> &str {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `parent`, and `dataset` are never read
[INFO] [stdout]    --> src/main.rs:155:5
[INFO] [stdout]     |
[INFO] [stdout] 153 | struct Plant {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 154 |     log: Logger,
[INFO] [stdout] 155 |     id: u64,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 156 |     parent: String,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 157 |     dataset: String,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `dataset` is never used
[INFO] [stdout]    --> src/main.rs:351:8
[INFO] [stdout]     |
[INFO] [stdout] 259 | impl Plant {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 351 |     fn dataset(&self) -> &str {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ZPOOL` is never used
[INFO] [stdout]  --> src/zfs.rs:5:7
[INFO] [stdout]   |
[INFO] [stdout] 5 | const ZPOOL: &str = "/sbin/zpool";
[INFO] [stdout]   |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `zpool` is never used
[INFO] [stdout]   --> src/zfs.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn zpool() -> Command {
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.03s
[INFO] running `Command { std: "docker" "inspect" "4005ad8780e87e9eb6a182d2f85b732c46d8281efb7d56e589a40ba87c4489dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4005ad8780e87e9eb6a182d2f85b732c46d8281efb7d56e589a40ba87c4489dd", kill_on_drop: false }`
[INFO] [stdout] 4005ad8780e87e9eb6a182d2f85b732c46d8281efb7d56e589a40ba87c4489dd
