[INFO] fetching crate iofs 0.0.8...
[INFO] checking iofs-0.0.8 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate iofs 0.0.8 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate iofs 0.0.8 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iofs 0.0.8
[INFO] finished tweaking crates.io crate iofs 0.0.8
[INFO] tweaked toml for crates.io crate iofs 0.0.8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate iofs 0.0.8 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" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded headers v0.3.8
[INFO] [stderr]   Downloaded quote v1.0.31
[INFO] [stderr]   Downloaded serde v1.0.174
[INFO] [stderr]   Downloaded warp v0.3.5
[INFO] [stderr]   Downloaded syn v2.0.27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fa326ef8f0564303142f09abea20f85ce136e07608c814cfd01ff8fb0cc7057
[INFO] running `Command { std: "docker" "start" "-a" "6fa326ef8f0564303142f09abea20f85ce136e07608c814cfd01ff8fb0cc7057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fa326ef8f0564303142f09abea20f85ce136e07608c814cfd01ff8fb0cc7057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fa326ef8f0564303142f09abea20f85ce136e07608c814cfd01ff8fb0cc7057", kill_on_drop: false }`
[INFO] [stdout] 6fa326ef8f0564303142f09abea20f85ce136e07608c814cfd01ff8fb0cc7057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0cc385a048c043d3a89bd3808e713f26ba21cd81cea603a975364aa8271826c7
[INFO] running `Command { std: "docker" "start" "-a" "0cc385a048c043d3a89bd3808e713f26ba21cd81cea603a975364aa8271826c7", kill_on_drop: false }`
[INFO] [stderr]     Checking iofs v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `and`, `with`, and `append` are never used
[INFO] [stdout]  --> src/fs/other.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait And {
[INFO] [stdout]   |           --- methods in this trait
[INFO] [stdout] 5 |     type Output;
[INFO] [stdout] 6 |     fn and<T: Display>(self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 7 |     fn with<T: Display>(&self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 8 |     fn append<T: Display>(self, other: Vec<T>) -> Self::Output;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `trim_zero` is never used
[INFO] [stdout]   --> src/io/number.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait Trim {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn trim_zero(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `and`, `with`, and `append` are never used
[INFO] [stdout]  --> src/fs/other.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait And {
[INFO] [stdout]   |           --- methods in this trait
[INFO] [stdout] 5 |     type Output;
[INFO] [stdout] 6 |     fn and<T: Display>(self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 7 |     fn with<T: Display>(&self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 8 |     fn append<T: Display>(self, other: Vec<T>) -> Self::Output;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `trim_zero` is never used
[INFO] [stdout]   --> src/io/number.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait Trim {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn trim_zero(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::stream::FileWriteStream` and `prelude::FileInfo`
[INFO] [stdout]  --> examples/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use iofs::{prelude::FileInfo, fs::stream::FileWriteStream};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Find`
[INFO] [stdout]  --> examples/io.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     prelude::{FileInfo, Find},
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "0cc385a048c043d3a89bd3808e713f26ba21cd81cea603a975364aa8271826c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cc385a048c043d3a89bd3808e713f26ba21cd81cea603a975364aa8271826c7", kill_on_drop: false }`
[INFO] [stdout] 0cc385a048c043d3a89bd3808e713f26ba21cd81cea603a975364aa8271826c7
[INFO] checking iofs-0.0.8 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate iofs 0.0.8 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate iofs 0.0.8 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate iofs 0.0.8
[INFO] finished tweaking crates.io crate iofs 0.0.8
[INFO] tweaked toml for crates.io crate iofs 0.0.8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate iofs 0.0.8 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" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06987fad73d2553de92b07b5d152b9050458c1614a101f6725607d39a3e85b5b
[INFO] running `Command { std: "docker" "start" "-a" "06987fad73d2553de92b07b5d152b9050458c1614a101f6725607d39a3e85b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06987fad73d2553de92b07b5d152b9050458c1614a101f6725607d39a3e85b5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06987fad73d2553de92b07b5d152b9050458c1614a101f6725607d39a3e85b5b", kill_on_drop: false }`
[INFO] [stdout] 06987fad73d2553de92b07b5d152b9050458c1614a101f6725607d39a3e85b5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66178c53b21ce3293e80b2f93e95750817f83b2fb98b0d7b3c26f7753cad523d
[INFO] running `Command { std: "docker" "start" "-a" "66178c53b21ce3293e80b2f93e95750817f83b2fb98b0d7b3c26f7753cad523d", kill_on_drop: false }`
[INFO] [stderr]     Checking iofs v0.0.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `and`, `with`, and `append` are never used
[INFO] [stdout]  --> src/fs/other.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait And {
[INFO] [stdout]   |           --- methods in this trait
[INFO] [stdout] 5 |     type Output;
[INFO] [stdout] 6 |     fn and<T: Display>(self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 7 |     fn with<T: Display>(&self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 8 |     fn append<T: Display>(self, other: Vec<T>) -> Self::Output;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `trim_zero` is never used
[INFO] [stdout]   --> src/io/number.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait Trim {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn trim_zero(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `and`, `with`, and `append` are never used
[INFO] [stdout]  --> src/fs/other.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait And {
[INFO] [stdout]   |           --- methods in this trait
[INFO] [stdout] 5 |     type Output;
[INFO] [stdout] 6 |     fn and<T: Display>(self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 7 |     fn with<T: Display>(&self, other: T) -> Self::Output;
[INFO] [stdout]   |        ^^^^
[INFO] [stdout] 8 |     fn append<T: Display>(self, other: Vec<T>) -> Self::Output;
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `trim_zero` is never used
[INFO] [stdout]   --> src/io/number.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub trait Trim {
[INFO] [stdout]    |           ---- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 42 |     fn trim_zero(&mut self);
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `fs::stream::FileWriteStream` and `prelude::FileInfo`
[INFO] [stdout]  --> examples/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | use iofs::{prelude::FileInfo, fs::stream::FileWriteStream};
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Find`
[INFO] [stdout]  --> examples/io.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 |     prelude::{FileInfo, Find},
[INFO] [stdout]   |                         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "66178c53b21ce3293e80b2f93e95750817f83b2fb98b0d7b3c26f7753cad523d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66178c53b21ce3293e80b2f93e95750817f83b2fb98b0d7b3c26f7753cad523d", kill_on_drop: false }`
[INFO] [stdout] 66178c53b21ce3293e80b2f93e95750817f83b2fb98b0d7b3c26f7753cad523d