[INFO] cloning repository https://github.com/sebastian-navarro/rust_for_rustaceans
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sebastian-navarro/rust_for_rustaceans" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebastian-navarro%2Frust_for_rustaceans", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebastian-navarro%2Frust_for_rustaceans'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6a105cc24a0c9dff3cc9c48cce578efe3320364
[INFO] checking sebastian-navarro/rust_for_rustaceans against try#3ec2a775459d36c7d90654e47c56ff7bb0d542ab for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebastian-navarro%2Frust_for_rustaceans" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebastian-navarro/rust_for_rustaceans on toolchain 3ec2a775459d36c7d90654e47c56ff7bb0d542ab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebastian-navarro/rust_for_rustaceans
[INFO] finished tweaking git repo https://github.com/sebastian-navarro/rust_for_rustaceans
[INFO] tweaked toml for git repo https://github.com/sebastian-navarro/rust_for_rustaceans written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sebastian-navarro/rust_for_rustaceans 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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking sebastian-navarro/rust_for_rustaceans against try#3ec2a775459d36c7d90654e47c56ff7bb0d542ab for pr-139087
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsebastian-navarro%2Frust_for_rustaceans" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sebastian-navarro/rust_for_rustaceans on toolchain 3ec2a775459d36c7d90654e47c56ff7bb0d542ab
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sebastian-navarro/rust_for_rustaceans
[INFO] finished tweaking git repo https://github.com/sebastian-navarro/rust_for_rustaceans
[INFO] tweaked toml for git repo https://github.com/sebastian-navarro/rust_for_rustaceans written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sebastian-navarro/rust_for_rustaceans 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" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77d3feb6410d63efe9758ecf4e09319d18e1bd324bb3353f54bb13fd1c70b979
[INFO] running `Command { std: "docker" "start" "-a" "77d3feb6410d63efe9758ecf4e09319d18e1bd324bb3353f54bb13fd1c70b979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77d3feb6410d63efe9758ecf4e09319d18e1bd324bb3353f54bb13fd1c70b979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d3feb6410d63efe9758ecf4e09319d18e1bd324bb3353f54bb13fd1c70b979", kill_on_drop: false }`
[INFO] [stdout] 77d3feb6410d63efe9758ecf4e09319d18e1bd324bb3353f54bb13fd1c70b979
[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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+3ec2a775459d36c7d90654e47c56ff7bb0d542ab" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc5d085849b181fb459e12dcb643da4de4a7bd88425a562eacaaaface3014366
[INFO] running `Command { std: "docker" "start" "-a" "dc5d085849b181fb459e12dcb643da4de4a7bd88425a562eacaaaface3014366", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_for_rustaceans v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `rand` in this scope
[INFO] [stdout]  --> src/bin/listing1_8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if rand() > 0.5 {
[INFO] [stdout]   |        ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StrSplit` is never constructed
[INFO] [stdout]  --> src/bin/listing1_10.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct StrSplit<'s, 'p> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `str_before` is never used
[INFO] [stdout]   --> src/bin/listing1_10.rs:14:4
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn str_before(s: &str, c:char) -> Option<&str> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_for_rustaceans` (bin "listing1_8") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0382]: use of moved value: `y1`
[INFO] [stdout]   --> src/bin/listing1_3.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 3  |     let y1 = Box::new(42);
[INFO] [stdout]    |         -- move occurs because `y1` has type `Box<i32>`, which does not implement the `Copy` trait
[INFO] [stdout] ...
[INFO] [stdout] 8  |         let _z = (x1,y1);
[INFO] [stdout]    |                      -- value moved here
[INFO] [stdout] ...
[INFO] [stdout] 12 |     let _x3 = y1; // This doesnt work because Box y1 doesnt implement Copy Trait
[INFO] [stdout]    |               ^^ value used here after move
[INFO] [stdout]    |
[INFO] [stdout] help: consider cloning the value if the performance cost is acceptable
[INFO] [stdout]    |
[INFO] [stdout] 8  |         let _z = (x1,y1.clone());
[INFO] [stdout]    |                        ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_for_rustaceans` (bin "listing1_3") due to 1 previous error
[INFO] [stdout] error[E0425]: cannot find function `rand` in this scope
[INFO] [stdout]  --> src/bin/listing1_8.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 |     if rand() > 0.5 {
[INFO] [stdout]   |        ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_for_rustaceans` (bin "listing1_8" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "dc5d085849b181fb459e12dcb643da4de4a7bd88425a562eacaaaface3014366", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5d085849b181fb459e12dcb643da4de4a7bd88425a562eacaaaface3014366", kill_on_drop: false }`
[INFO] [stdout] dc5d085849b181fb459e12dcb643da4de4a7bd88425a562eacaaaface3014366