[INFO] fetching crate stdworld 0.1.1...
[INFO] testing stdworld-0.1.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate stdworld 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate stdworld 0.1.1
[INFO] finished tweaking crates.io crate stdworld 0.1.1
[INFO] tweaked toml for crates.io crate stdworld 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stdworld 0.1.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 072d47a2c6344a67e467bfcc500ab41e633b46d9c8b0dbbfac4dddb342850f71
[INFO] running `Command { std: "docker" "start" "-a" "072d47a2c6344a67e467bfcc500ab41e633b46d9c8b0dbbfac4dddb342850f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "072d47a2c6344a67e467bfcc500ab41e633b46d9c8b0dbbfac4dddb342850f71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072d47a2c6344a67e467bfcc500ab41e633b46d9c8b0dbbfac4dddb342850f71", kill_on_drop: false }`
[INFO] [stdout] 072d47a2c6344a67e467bfcc500ab41e633b46d9c8b0dbbfac4dddb342850f71
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e87dcc12082b5195af7abbd6f6df773ce27a1b4e80f37442e7e10bc6714bb476
[INFO] running `Command { std: "docker" "start" "-a" "e87dcc12082b5195af7abbd6f6df773ce27a1b4e80f37442e7e10bc6714bb476", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdworld v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:72:68
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                    ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/lib.rs:72:74
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/lib.rs:72:82
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:76:50
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stdout]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/lib.rs:76:56
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stdout]    |                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:81:34
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn vars_os<W: EnvAccess>(w: W) -> VarsOs {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:93:41
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:93:47
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stdout]    |                                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl MainWorld {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] 141 |     unsafe fn new() -> MainWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:147:15
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ThreadWorld {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 147 |     unsafe fn new() -> ThreadWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:153:15
[INFO] [stdout]     |
[INFO] [stdout] 152 | impl UnloadableMainWorld {
[INFO] [stdout]     | ------------------------ associated function in this implementation
[INFO] [stdout] 153 |     unsafe fn new() -> UnloadableMainWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] running `Command { std: "docker" "inspect" "e87dcc12082b5195af7abbd6f6df773ce27a1b4e80f37442e7e10bc6714bb476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87dcc12082b5195af7abbd6f6df773ce27a1b4e80f37442e7e10bc6714bb476", kill_on_drop: false }`
[INFO] [stdout] e87dcc12082b5195af7abbd6f6df773ce27a1b4e80f37442e7e10bc6714bb476
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89eb1f1f8693b92fbdf7229a9daebf502fc10c79a26fd2906c9e03860efd563b
[INFO] running `Command { std: "docker" "start" "-a" "89eb1f1f8693b92fbdf7229a9daebf502fc10c79a26fd2906c9e03860efd563b", kill_on_drop: false }`
[INFO] [stderr]    Compiling stdworld v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:72:68
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                    ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/lib.rs:72:74
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/lib.rs:72:82
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:76:50
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stdout]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/lib.rs:76:56
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stdout]    |                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:81:34
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn vars_os<W: EnvAccess>(w: W) -> VarsOs {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:93:41
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:93:47
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stdout]    |                                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl MainWorld {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] 141 |     unsafe fn new() -> MainWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:147:15
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ThreadWorld {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 147 |     unsafe fn new() -> ThreadWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:153:15
[INFO] [stdout]     |
[INFO] [stdout] 152 | impl UnloadableMainWorld {
[INFO] [stdout]     | ------------------------ associated function in this implementation
[INFO] [stdout] 153 |     unsafe fn new() -> UnloadableMainWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:72:68
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                    ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/lib.rs:72:74
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `value`
[INFO] [stdout]   --> src/lib.rs:72:82
[INFO] [stdout]    |
[INFO] [stdout] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stdout]    |                                                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:76:50
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stdout]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/lib.rs:76:56
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stdout]    |                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:81:34
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn vars_os<W: EnvAccess>(w: W) -> VarsOs {
[INFO] [stdout]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `w`
[INFO] [stdout]   --> src/lib.rs:93:41
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stdout]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/lib.rs:93:47
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stdout]    |                                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:141:15
[INFO] [stdout]     |
[INFO] [stdout] 140 | impl MainWorld {
[INFO] [stdout]     | -------------- associated function in this implementation
[INFO] [stdout] 141 |     unsafe fn new() -> MainWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:147:15
[INFO] [stdout]     |
[INFO] [stdout] 146 | impl ThreadWorld {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 147 |     unsafe fn new() -> ThreadWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:153:15
[INFO] [stdout]     |
[INFO] [stdout] 152 | impl UnloadableMainWorld {
[INFO] [stdout]     | ------------------------ associated function in this implementation
[INFO] [stdout] 153 |     unsafe fn new() -> UnloadableMainWorld {
[INFO] [stdout]     |               ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "89eb1f1f8693b92fbdf7229a9daebf502fc10c79a26fd2906c9e03860efd563b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89eb1f1f8693b92fbdf7229a9daebf502fc10c79a26fd2906c9e03860efd563b", kill_on_drop: false }`
[INFO] [stdout] 89eb1f1f8693b92fbdf7229a9daebf502fc10c79a26fd2906c9e03860efd563b
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9e2b50a8977fe8dd98d1b801ac2653886c1da85aceb29b4dfe402f7fa8d0ae1d
[INFO] running `Command { std: "docker" "start" "-a" "9e2b50a8977fe8dd98d1b801ac2653886c1da85aceb29b4dfe402f7fa8d0ae1d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/lib.rs:72:68
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stderr]    |                                                                    ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/lib.rs:72:74
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stderr]    |                                                                          ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]   --> src/lib.rs:72:82
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn set_var<W: EnvAccess, K: AsRef<OsStr>, V: AsRef<OsStr>>(w: W, key: K, value: V) {
[INFO] [stderr]    |                                                                                  ^^^^^ help: if this is intentional, prefix it with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/lib.rs:76:50
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stderr]    |                                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/lib.rs:76:56
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn var_os<W: EnvAccess, K: AsRef<OsStr>>(w: W, key: K) -> Option<OsString> {
[INFO] [stderr]    |                                                        ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/lib.rs:81:34
[INFO] [stderr]    |
[INFO] [stderr] 81 |     pub fn vars_os<W: EnvAccess>(w: W) -> VarsOs {
[INFO] [stderr]    |                                  ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `w`
[INFO] [stderr]   --> src/lib.rs:93:41
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stderr]    |                                         ^ help: if this is intentional, prefix it with an underscore: `_w`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `f`
[INFO] [stderr]   --> src/lib.rs:93:47
[INFO] [stderr]    |
[INFO] [stderr] 93 |     pub fn spawn<W: ThreadAccess, F, T>(w: W, f: F) -> JoinHandle<T>
[INFO] [stderr]    |                                               ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lib.rs:141:15
[INFO] [stderr]     |
[INFO] [stderr] 140 | impl MainWorld {
[INFO] [stderr]     | -------------- associated function in this implementation
[INFO] [stderr] 141 |     unsafe fn new() -> MainWorld {
[INFO] [stderr]     |               ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lib.rs:147:15
[INFO] [stderr]     |
[INFO] [stderr] 146 | impl ThreadWorld {
[INFO] [stderr]     | ---------------- associated function in this implementation
[INFO] [stderr] 147 |     unsafe fn new() -> ThreadWorld {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lib.rs:153:15
[INFO] [stderr]     |
[INFO] [stderr] 152 | impl UnloadableMainWorld {
[INFO] [stderr]     | ------------------------ associated function in this implementation
[INFO] [stderr] 153 |     unsafe fn new() -> UnloadableMainWorld {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `stdworld` (lib) generated 11 warnings (run `cargo fix --lib -p stdworld` to apply 8 suggestions)
[INFO] [stderr] warning: `stdworld` (lib test) generated 11 warnings (11 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/std-c55bf9a193f80e99)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests std
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9e2b50a8977fe8dd98d1b801ac2653886c1da85aceb29b4dfe402f7fa8d0ae1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e2b50a8977fe8dd98d1b801ac2653886c1da85aceb29b4dfe402f7fa8d0ae1d", kill_on_drop: false }`
[INFO] [stdout] 9e2b50a8977fe8dd98d1b801ac2653886c1da85aceb29b4dfe402f7fa8d0ae1d
