[INFO] updating cached repository cmr/tree-generator
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/cmr/tree-generator
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/cmr/tree-generator" "work/ex/beta-1.38-1/sources/1.37.0/gh/cmr/tree-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cmr/tree-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/cmr/tree-generator" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmr/tree-generator"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmr/tree-generator'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a3c72b028d073ce78078befedc3e9a0c6e9d28df
[INFO] sha for GitHub repo cmr/tree-generator: a3c72b028d073ce78078befedc3e9a0c6e9d28df
[INFO] validating manifest of cmr/tree-generator on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of cmr/tree-generator on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing cmr/tree-generator
[INFO] finished frobbing cmr/tree-generator
[INFO] frobbed toml for cmr/tree-generator written to work/ex/beta-1.38-1/sources/1.37.0/gh/cmr/tree-generator/Cargo.toml
[INFO] started frobbing cmr/tree-generator
[INFO] finished frobbing cmr/tree-generator
[INFO] frobbed toml for cmr/tree-generator written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cmr/tree-generator/Cargo.toml
[INFO] crate cmr/tree-generator already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing cmr/tree-generator against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cmr/tree-generator:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 13bee2aa6932b114451da2f10ab91a88299082b60eada7fe4784b391eef3f203
[INFO] running `"docker" "start" "-a" "13bee2aa6932b114451da2f10ab91a88299082b60eada7fe4784b391eef3f203"`
[INFO] [stderr]    Compiling treegen v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]  --> src/main.rs:8:24
[INFO] [stderr]   |
[INFO] [stderr] 8 |         for _ in range(0i, padding) {
[INFO] [stderr]   |                        ^^ invalid suffix `i`
[INFO] [stderr]   |
[INFO] [stderr]   = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 |         for _ in range(0i, width - (padding * 2)) {
[INFO] [stderr]    |                        ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:17:26
[INFO] [stderr]    |
[INFO] [stderr] 17 |     for padding in range(0i, (width - 3) / 2) {
[INFO] [stderr]    |                          ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error: invalid suffix `i` for integer literal
[INFO] [stderr]   --> src/main.rs:21:20
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for _ in range(0i, 3) {
[INFO] [stderr]    |                    ^^ invalid suffix `i`
[INFO] [stderr]    |
[INFO] [stderr]    = help: the suffix must be one of the integral types (`u32`, `isize`, etc)
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `args` in module `std::os`
[INFO] [stderr]  --> src/main.rs:2:25
[INFO] [stderr]   |
[INFO] [stderr] 2 |     let args = std::os::args();
[INFO] [stderr]   |                         ^^^^ not found in `std::os`
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::env::args;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `int` in this scope
[INFO] [stderr]  --> src/main.rs:3:16
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let width: int = from_str(args[1].as_slice().trim()).unwrap();
[INFO] [stderr]   |                ^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `from_str` in this scope
[INFO] [stderr]  --> src/main.rs:3:22
[INFO] [stderr]   |
[INFO] [stderr] 3 |     let width: int = from_str(args[1].as_slice().trim()).unwrap();
[INFO] [stderr]   |                      ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range_inclusive` in module `std::iter`
[INFO] [stderr]  --> src/main.rs:7:31
[INFO] [stderr]   |
[INFO] [stderr] 7 |     for padding in std::iter::range_inclusive(0, (width - 1) / 2).rev() {
[INFO] [stderr]   |                               ^^^^^^^^^^^^^^^ not found in `std::iter`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]  --> src/main.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 |         for _ in range(0i, padding) {
[INFO] [stderr]   |                  ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/main.rs:11:18
[INFO] [stderr]    |
[INFO] [stderr] 11 |         for _ in range(0i, width - (padding * 2)) {
[INFO] [stderr]    |                  ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/main.rs:17:20
[INFO] [stderr]    |
[INFO] [stderr] 17 |     for padding in range(0i, (width - 3) / 2) {
[INFO] [stderr]    |                    ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `range` in this scope
[INFO] [stderr]   --> src/main.rs:21:14
[INFO] [stderr]    |
[INFO] [stderr] 21 |     for _ in range(0i, 3) {
[INFO] [stderr]    |              ^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 12 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0412, E0425.
[INFO] [stderr] For more information about an error, try `rustc --explain E0412`.
[INFO] [stderr] error: Could not compile `treegen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "13bee2aa6932b114451da2f10ab91a88299082b60eada7fe4784b391eef3f203"`
[INFO] running `"docker" "rm" "-f" "13bee2aa6932b114451da2f10ab91a88299082b60eada7fe4784b391eef3f203"`
[INFO] [stdout] 13bee2aa6932b114451da2f10ab91a88299082b60eada7fe4784b391eef3f203